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RRB JE CBT 2 Civil Engineering Practice Paper 02 (Exam Pattern, Solved Set)

RRB JE (Junior Engineer) • 2026 • 150 Questions • Free practice with solutions

Subjects included:General Awareness (15)General Science (25)Computer Knowledge (10)Civil Engineering (SSC JE) (100)
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Showing 150 Questions with Step-by-Step Solutions
Q1General Awareness
Easy
The Pradhan Mantri Gram Sadak Yojana provides:
A. Rural railway lines
B. Rural electricity
C. Village schools
D. All-weather rural roads
View answer and explanation
Correct Option: D
It was launched in 2000.
Q2General Awareness
Medium
Bharatmala Pariyojana is a programme for:
A. Highway and road corridors
B. Ports
C. Inland waterways
D. Rural housing
View answer and explanation
Correct Option: A
Sagarmala is the port-led programme.
Q3General Awareness
Medium
The Sagarmala programme focuses on:
A. Hill railways
B. Port-led development
C. Airports
D. Metro rail
View answer and explanation
Correct Option: B
It aims to modernise ports and coastal logistics.
Q4General Awareness
Medium
The PM Gati Shakti National Master Plan was launched in:
A. 2019
B. 2015
C. 2021
D. 2023
View answer and explanation
Correct Option: C
On 13 October 2021, for integrated infrastructure planning.
Q5General Awareness
Easy
The UDAN scheme aims to improve:
A. Port capacity
B. Rural roads
C. Railway safety
D. Regional air connectivity
View answer and explanation
Correct Option: D
Ude Desh ka Aam Nagrik.
Q6General Awareness
Medium
The Atal Tunnel, under the Rohtang Pass, is in:
A. Himachal Pradesh
B. Jammu and Kashmir
C. Uttarakhand
D. Sikkim
View answer and explanation
Correct Option: A
It links Manali with the Lahaul valley.
Q7General Awareness
Medium
The Bogibeel rail-cum-road bridge in Assam is built over the:
A. Ganga
B. Brahmaputra
C. Barak
D. Teesta
View answer and explanation
Correct Option: B
It is India's longest rail-cum-road bridge.
Q8General Awareness
Medium
The Pamban rail bridge connects the mainland with:
A. Andaman Islands
B. Sri Lanka
C. Rameswaram island
D. Lakshadweep
View answer and explanation
Correct Option: C
A new vertical-lift bridge has been built beside the old one.
Q9General Awareness
Easy
The Sardar Sarovar Dam is built on the river:
A. Sabarmati
B. Tapi
C. Mahi
D. Narmada
View answer and explanation
Correct Option: D
It is in Gujarat.
Q10General Awareness
Easy
The Tehri Dam is built on the river:
A. Bhagirathi
B. Alaknanda
C. Yamuna
D. Sutlej
View answer and explanation
Correct Option: A
It is in Uttarakhand.
Q11General Awareness
Easy
The Kudankulam Nuclear Power Plant is in:
A. Kerala
B. Tamil Nadu
C. Andhra Pradesh
D. Karnataka
View answer and explanation
Correct Option: B
It was built with Russian cooperation.
Q12General Awareness
Easy
NTPC is India's largest:
A. Oil company
B. Steel maker
C. Power generation company
D. Railway contractor
View answer and explanation
Correct Option: C
National Thermal Power Corporation.
Q13General Awareness
Easy
BHEL mainly manufactures:
A. Medicines
B. Aircraft
C. Railway coaches
D. Power plant and electrical equipment
View answer and explanation
Correct Option: D
Bharat Heavy Electricals Limited.
Q14General Awareness
Medium
The Bhadla Solar Park is located in:
A. Rajasthan
B. Gujarat
C. Karnataka
D. Madhya Pradesh
View answer and explanation
Correct Option: A
It is one of the largest solar parks in the world.
Q15General Awareness
Easy
Engineers' Day in India is observed on:
A. 14 December
B. 15 September
C. 28 February
D. 5 June
View answer and explanation
Correct Option: B
It is the birth anniversary of M. Visvesvaraya.
Q16General Science
Medium
Young's double-slit experiment demonstrated the:
A. Speed of light
B. Particle nature of light
C. Wave nature of light (interference)
D. Photoelectric effect
View answer and explanation
Correct Option: C
Bright and dark fringes show interference.
Q17General Science
Easy
The photoelectric effect was explained by:
A. Niels Bohr
B. Isaac Newton
C. Max Planck
D. Albert Einstein
View answer and explanation
Correct Option: D
He received the 1921 Nobel Prize for it.
Q18General Science
Medium
In a nuclear reactor, the moderator is used to:
A. Slow down neutrons
B. Absorb all neutrons
C. Cool the reactor only
D. Speed up neutrons
View answer and explanation
Correct Option: A
Slow neutrons cause fission of U-235 more easily; heavy water and graphite are common moderators.
Q19General Science
Easy
Nuclear power reactors usually use fission of:
A. Hydrogen
B. Uranium-235
C. Carbon-12
D. Iron-56
View answer and explanation
Correct Option: B
Fission releases large amounts of energy.
Q20General Science
Medium
The pH of a 0.01 M solution of HCl is:
A. 0.01
B. 1
C. 2
D. 12
View answer and explanation
Correct Option: C
[H+] = 10^-2, so pH = 2.
Q21General Science
Easy
Temporary hardness of water can be removed by:
A. Chlorination
B. Adding salt
C. Filtration
D. Boiling
View answer and explanation
Correct Option: D
Boiling removes calcium and magnesium bicarbonates.
Q22General Science
Medium
Permanent hardness of water can be removed by:
A. Adding washing soda
B. Boiling
C. Filtration
D. Aeration
View answer and explanation
Correct Option: A
Sodium carbonate precipitates calcium and magnesium; ion exchange also works.
Q23General Science
Medium
The largest constituent of ordinary Portland cement is:
A. Silica (SiO₂)
B. Lime (CaO)
C. Alumina (Al₂O₃)
D. Iron oxide
View answer and explanation
Correct Option: B
Lime is about 60-67%.
Q24General Science
Medium
Gypsum is added to cement to:
A. Make it waterproof
B. Increase its colour
C. Control its setting time
D. Reduce its strength
View answer and explanation
Correct Option: C
It prevents flash setting.
Q25General Science
Medium
The corrosion of iron is mainly an:
A. Nuclear reaction
B. Physical change
C. Reduction reaction
D. Electrochemical oxidation
View answer and explanation
Correct Option: D
Anodic and cathodic areas form on the metal surface.
Q26General Science
Medium
In cathodic protection by a sacrificial anode, iron is connected to:
A. A more reactive metal such as zinc or magnesium
B. A less reactive metal such as copper
C. A plastic sheet
D. A glass rod
View answer and explanation
Correct Option: A
The more reactive metal corrodes instead of iron.
Q27General Science
Easy
The unit of molarity is:
A. g/L
B. mol/L
C. mol/kg
D. g/mol
View answer and explanation
Correct Option: B
Moles of solute per litre of solution.
Q28General Science
Easy
A galvanic (voltaic) cell converts:
A. Heat into light
B. Electrical energy into chemical energy
C. Chemical energy into electrical energy
D. Light into electricity
View answer and explanation
Correct Option: C
An electrolytic cell does the reverse.
Q29General Science
Easy
Steel is an alloy of iron and:
A. Lead
B. Copper
C. Tin
D. Carbon
View answer and explanation
Correct Option: D
Small amounts of carbon make iron much stronger.
Q30General Science
Easy
PVC is an example of a:
A. Thermoplastic polymer
B. Thermosetting plastic
C. Natural fibre
D. Metal alloy
View answer and explanation
Correct Option: A
It softens on heating and can be remoulded.
Q31Computer Knowledge
Easy
The keyboard shortcut to copy in Windows is:
A. Ctrl + X
B. Ctrl + V
C. Ctrl + C
D. Ctrl + P
View answer and explanation
Correct Option: C
Ctrl + V pastes and Ctrl + X cuts.
Q32Computer Knowledge
Easy
The keyboard shortcut to undo an action is:
A. Ctrl + S
B. Ctrl + Y
C. Ctrl + U
D. Ctrl + Z
View answer and explanation
Correct Option: D
Ctrl + Y redoes.
Q33Computer Knowledge
Easy
The default file extension of a modern MS Excel workbook is:
A. .xlsx
B. .docx
C. .pptx
D. .txt
View answer and explanation
Correct Option: A
.docx is Word and .pptx is PowerPoint.
Q34Computer Knowledge
Easy
In MS Excel, the function used to add a range of numbers is:
A. ADD
B. SUM
C. TOTAL
D. PLUS
View answer and explanation
Correct Option: B
For example, =SUM(A1:A10).
Q35Computer Knowledge
Easy
URL stands for:
A. Uniform Reference Line
B. Universal Resource Link
C. Uniform Resource Locator
D. Unified Resource Locator
View answer and explanation
Correct Option: C
It is a web address.
Q36Computer Knowledge
Easy
HTTP stands for:
A. Host Transfer Text Protocol
B. High Transfer Text Protocol
C. HyperText Transmission Program
D. HyperText Transfer Protocol
View answer and explanation
Correct Option: D
HTTPS is the secure version.
Q37Computer Knowledge
Easy
Which symbol separates the user name from the domain in an e-mail address?
A. @
B. #
C. &
D. %
View answer and explanation
Correct Option: A
For example, [email protected].
Q38Computer Knowledge
Easy
A firewall is used to:
A. Speed up the internet
B. Block unauthorised access to a network
C. Print documents
D. Store files
View answer and explanation
Correct Option: B
It filters network traffic.
Q39Computer Knowledge
Medium
A malicious program that copies itself and spreads across networks without needing a host file is a:
A. Spreadsheet
B. Virus
C. Worm
D. Compiler
View answer and explanation
Correct Option: C
A virus needs to attach itself to a host file.
Q40Computer Knowledge
Easy
LAN stands for:
A. Local Access Number
B. Large Area Network
C. Long Access Node
D. Local Area Network
View answer and explanation
Correct Option: D
A network within a building or campus.
Q41General Science
Medium
A catalytic converter in a vehicle mainly:
A. Converts carbon monoxide and nitrogen oxides into less harmful gases
B. Increases engine power
C. Filters dust from fuel
D. Cools the exhaust
View answer and explanation
Correct Option: A
It uses platinum-group metals as catalysts.
Q42General Science
Medium
Eutrophication of lakes is caused by excess:
A. Oxygen
B. Nutrients such as phosphates and nitrates
C. Fish
D. Sunlight
View answer and explanation
Correct Option: B
Algae bloom and then deplete oxygen.
Q43General Science
Easy
The gas that leaked in the 1984 Bhopal tragedy was:
A. Ammonia
B. Chlorine
C. Methyl isocyanate
D. Carbon monoxide
View answer and explanation
Correct Option: C
It leaked from a pesticide plant.
Q44General Science
Medium
Minamata disease is caused by poisoning from:
A. Arsenic
B. Cadmium
C. Lead
D. Mercury
View answer and explanation
Correct Option: D
It was first seen in Minamata, Japan.
Q45General Science
Medium
Itai-itai disease is caused by poisoning from:
A. Cadmium
B. Mercury
C. Fluoride
D. Copper
View answer and explanation
Correct Option: A
It affects bones and kidneys.
Q46General Science
Medium
The Central Pollution Control Board was set up under the:
A. Environment (Protection) Act, 1986
B. Water (Prevention and Control of Pollution) Act, 1974
C. Air Act, 1981
D. Forest Act, 1927
View answer and explanation
Correct Option: B
Its powers were extended by the Air Act of 1981.
Q47General Science
Easy
The Environment (Protection) Act was passed in:
A. 1981
B. 1974
C. 1986
D. 1972
View answer and explanation
Correct Option: C
It followed the Bhopal gas tragedy.
Q48General Science
Easy
The ozone layer lies mainly in the:
A. Thermosphere
B. Troposphere
C. Mesosphere
D. Stratosphere
View answer and explanation
Correct Option: D
About 15 to 35 km above the Earth.
Q49General Science
Easy
Which of these is a renewable source of energy?
A. Wind
B. Coal
C. Diesel
D. Natural gas
View answer and explanation
Correct Option: A
It will not run out.
Q50General Science
Medium
Primary treatment of sewage mainly removes:
A. Dissolved organic matter by microbes
B. Suspended solids by settling
C. Pathogens by chlorination
D. Nutrients by chemical dosing
View answer and explanation
Correct Option: B
Secondary treatment uses microbes.
Q51Civil Engineering (SSC JE)
Hard
The standard cement mortar cube used to find the compressive strength of cement has a side of
A. 70.6 mm
B. 50 mm
C. 100 mm
D. 150 mm
View answer and explanation
Correct Option: A
The 70.6 mm cube has a face area of about 5000 mm² (50 cm²), which makes the stress calculation easy.
Q52Civil Engineering (SSC JE)
Medium
The Blaine air permeability test on cement is used to determine
A. its heat of hydration
B. its fineness as specific surface area
C. its initial setting time
D. its soundness
View answer and explanation
Correct Option: B
The Blaine apparatus measures the time for a fixed volume of air to pass through a cement bed, which gives specific surface in m²/kg.
Q53Civil Engineering (SSC JE)
Easy
The Le Chatelier apparatus is used to test cement for
A. normal consistency
B. fineness
C. soundness (volume expansion)
D. compressive strength
View answer and explanation
Correct Option: C
Unsound cement expands after setting because of free lime or magnesia. The Le Chatelier test measures this expansion, limited to 10 mm.
Q54Civil Engineering (SSC JE)
Medium
Portland pozzolana cement made with fly ash contains fly ash in the range of about
A. 2 to 5 percent
B. 15 to 35 percent
C. 70 to 80 percent
D. 40 to 60 percent
View answer and explanation
Correct Option: B
IS 1489 (Part 1) allows 15 to 35 percent fly ash by mass. PPC gains strength slowly but gives lower heat of hydration.
Q55Civil Engineering (SSC JE)
Easy
Under IS 383, the finest grading zone of natural sand is
A. Zone III
B. Zone IV
C. Zone I
D. Zone II
View answer and explanation
Correct Option: B
Zone I is coarse sand and Zone IV is the finest.
Q56Civil Engineering (SSC JE)
Medium
The fineness modulus of fine aggregate generally lies between
A. 6.0 and 8.0
B. 0.5 and 1.0
C. 4.0 and 5.0
D. 2.2 and 3.2
View answer and explanation
Correct Option: D
Sands normally have a fineness modulus of 2.2 to 3.2. Coarse aggregate has values of about 5.5 to 8.
Q57Civil Engineering (SSC JE)
Hard
As per IS 383, the maximum aggregate crushing value of aggregate used for concrete wearing surfaces such as roads and pavements is
A. 30 percent
B. 45 percent
C. 10 percent
D. 60 percent
View answer and explanation
Correct Option: A
The limit is 30 percent for wearing surfaces and 45 percent for other concrete.
Q58Civil Engineering (SSC JE)
Medium
The carbon content of mild steel is about
A. 0.5 to 0.8 percent
B. 0.15 to 0.30 percent
C. 1.0 to 1.5 percent
D. 2.0 to 4.0 percent
View answer and explanation
Correct Option: B
Mild steel is a low carbon steel, which makes it ductile and weldable. Cast iron has 2 to 4 percent carbon.
Q59Civil Engineering (SSC JE)
Easy
Teak, sal and oak are examples of
A. hardwoods from broad-leaved deciduous trees
B. plywood species
C. bamboo-type grasses
D. softwoods from coniferous trees
View answer and explanation
Correct Option: A
Hardwoods come from broad-leaved trees. Softwoods such as deodar and pine come from conifers.
Q60Civil Engineering (SSC JE)
Medium
Plaster of Paris is obtained by heating gypsum to about
A. 1400 to 1500 °C
B. 120 to 150 °C
C. 800 to 900 °C
D. 300 to 400 °C
View answer and explanation
Correct Option: B
Gypsum (CaSO4·2H2O) loses water at about 120–150 °C and forms the hemihydrate CaSO4·½H2O, which sets quickly when mixed with water.
Q61Civil Engineering (SSC JE)
Medium
Cutback bitumen is bitumen that has been
A. mixed with cement
B. mixed with a volatile petroleum solvent to reduce its viscosity
C. mixed with sand and filler
D. mixed with water and an emulsifier
View answer and explanation
Correct Option: B
The solvent evaporates after application and leaves the bitumen binder behind. An emulsion, in contrast, uses water.
Q62Civil Engineering (SSC JE)
Easy
Terrazzo flooring is made of
A. wooden strips
B. vitrified clay tiles
C. marble chips set in cement mortar and polished
D. glazed bricks
View answer and explanation
Correct Option: C
Terrazzo consists of marble chips in a cement matrix, ground and polished after curing.
Q63Civil Engineering (SSC JE)
Medium
A small percentage of gypsum is added to cement clinker to
A. control the flash set caused by C3A
B. accelerate setting
C. increase the colour
D. increase the fineness
View answer and explanation
Correct Option: A
Without gypsum, C3A reacts instantly with water and the cement sets in minutes (flash set). Gypsum regulates this reaction.
Q64Civil Engineering (SSC JE)
Easy
A rectangular slab supported on all four sides is designed as a one-way slab when the ratio of the longer span to the shorter span is greater than
A. 1
B. 3
C. 1.5
D. 2
View answer and explanation
Correct Option: D
When ly/lx > 2, nearly all load is carried in the short direction, so the slab is designed as one-way.
Q65Civil Engineering (SSC JE)
Medium
As per IS 456:2000, the minimum area of tension reinforcement in a beam is given by As/bd =
A. 0.85 / fy
B. 0.5 / fy
C. 1.5 / fy
D. 0.12 / fy
View answer and explanation
Correct Option: A
The minimum steel ensures that the beam does not fail suddenly when the concrete cracks. With fy in N/mm², As,min = 0.85 bd / fy.
Q66Civil Engineering (SSC JE)
Hard
A column has an unsupported length of 3.0 m and a lateral dimension of 300 mm. The minimum eccentricity to be considered as per IS 456 is
A. 20 mm
B. 26 mm
C. 10 mm
D. 16 mm
View answer and explanation
Correct Option: A
emin = L/500 + D/30 = 3000/500 + 300/30 = 6 + 10 = 16 mm, but it must be at least 20 mm, so 20 mm governs.
Q67Civil Engineering (SSC JE)
Hard
A simply supported beam of span 6 m carries a dead load of 20 kN/m and a live load of 10 kN/m. The factored maximum bending moment (limit state) is
A. 202.5 kN·m
B. 180.0 kN·m
C. 270.0 kN·m
D. 135.0 kN·m
View answer and explanation
Correct Option: A
Factored load = 1.5 × (20 + 10) = 45 kN/m. M = wL²/8 = 45 × 36 / 8 = 202.5 kN·m.
Q68Civil Engineering (SSC JE)
Easy
According to Abrams’ law, the strength of fully compacted concrete depends mainly on
A. the water-cement ratio
B. the type of formwork
C. the age of the cement
D. the size of coarse aggregate
View answer and explanation
Correct Option: A
Strength decreases as the water-cement ratio increases, provided the concrete is fully compacted.
Q69Civil Engineering (SSC JE)
Hard
The development length of a 16 mm diameter Fe 415 deformed bar in M20 concrete, taking the design bond stress as 1.92 N/mm², is about
A. 376 mm
B. 1128 mm
C. 752 mm
D. 470 mm
View answer and explanation
Correct Option: C
Ld = φσs / (4τbd) with σs = 0.87 × 415 = 361.05 N/mm². Ld = 16 × 361.05 / (4 × 1.92) = 5776.8 / 7.68 ≈ 752 mm (about 47φ).
Q70Civil Engineering (SSC JE)
Easy
A column is classified as short when the ratio of its effective length to its least lateral dimension is less than
A. 30
B. 8
C. 12
D. 20
View answer and explanation
Correct Option: C
IS 456 treats a column as short if both Lex/D and Ley/b are below 12; otherwise it is slender and additional moments are added.
Q71Civil Engineering (SSC JE)
Hard
High strength steel and high strength concrete are used in prestressed concrete mainly because
A. the loss of prestress due to creep, shrinkage and relaxation is then a small fraction of the large initial prestress
B. they are cheaper than ordinary materials
C. they reduce the weight of the formwork
D. they eliminate the need for anchorages
View answer and explanation
Correct Option: A
Strains from creep and shrinkage are fixed amounts. With a high initial stress the effective stress left after these losses stays large.
Q72Civil Engineering (SSC JE)
Medium
As per IS 456, the maximum shear stress τc,max for concrete of grade M25 is
A. 3.1 N/mm²
B. 2.8 N/mm²
C. 3.5 N/mm²
D. 2.2 N/mm²
View answer and explanation
Correct Option: A
The limits are 2.8 for M20, 3.1 for M25, 3.5 for M30, 3.7 for M35 and 4.0 for M40 and above. If τv exceeds this, the section size must be increased.
Q73Civil Engineering (SSC JE)
Easy
The nominal mix proportion (cement : sand : coarse aggregate) generally used for M20 concrete is
A. 1 : 1 : 2
B. 1 : 2 : 4
C. 1 : 3 : 6
D. 1 : 1.5 : 3
View answer and explanation
Correct Option: D
M20 corresponds to 1:1.5:3. The nominal mixes are M5 (1:5:10), M7.5 (1:4:8), M10 (1:3:6), M15 (1:2:4) and M20 (1:1.5:3).
Q74Civil Engineering (SSC JE)
Medium
For an equal-leg fillet weld of size s with a 90° angle between fusion faces, the effective throat thickness is
A. 0.7 s
B. 1.4 s
C. s
D. 0.5 s
View answer and explanation
Correct Option: A
The throat is the shortest distance from the root to the face of the weld triangle, which equals s cos 45° = 0.707 s.
Q75Civil Engineering (SSC JE)
Hard
As per IS 800:2007, the minimum effective length of a fillet weld should not be less than
A. four times the size of the weld
B. one and a half times the size of the weld
C. twice the size of the weld
D. ten times the size of the weld
View answer and explanation
Correct Option: A
Shorter welds are not allowed because the end craters make them unreliable. The minimum is 4 times the weld size.
Q76Civil Engineering (SSC JE)
Easy
Bearing stiffeners in a plate girder are provided
A. only at midspan
B. at the neutral axis only
C. at points of concentrated loads and at the supports
D. along the entire length of the flange
View answer and explanation
Correct Option: C
They prevent crippling or buckling of the web under local loads and reactions.
Q77Civil Engineering (SSC JE)
Hard
A plate 200 mm wide and 10 mm thick has two bolt holes of 20 mm diameter in the same cross-section. The net sectional area is
A. 1600 mm²
B. 1400 mm²
C. 2000 mm²
D. 1800 mm²
View answer and explanation
Correct Option: A
Anet = (b − n dh) t = (200 − 2 × 20) × 10 = 1600 mm².
Q78Civil Engineering (SSC JE)
Easy
Purlins in a roof truss are designed mainly for
A. pure axial compression
B. axial tension
C. bending caused by roof loads between the trusses
D. pure torsion
View answer and explanation
Correct Option: C
Purlins span between trusses and carry the roof sheeting loads, so they act as beams, often bending about both axes on a sloping roof.
Q79Civil Engineering (SSC JE)
Easy
A cantilever of length 3 m carries a uniformly distributed load of 4 kN/m over the full length. The maximum bending moment is
A. 36 kN·m
B. 18 kN·m
C. 12 kN·m
D. 6 kN·m
View answer and explanation
Correct Option: B
M = wL²/2 = 4 × 9 / 2 = 18 kN·m at the fixed end.
Q80Civil Engineering (SSC JE)
Hard
A simply supported beam of span 6 m carries a point load of 12 kN at 2 m from the left support. The maximum bending moment is
A. 16 kN·m
B. 8 kN·m
C. 24 kN·m
D. 18 kN·m
View answer and explanation
Correct Option: A
RA = 12 × 4 / 6 = 8 kN. The maximum moment is under the load: 8 × 2 = 16 kN·m.
Q81Civil Engineering (SSC JE)
Hard
At a point in a body, σx = 80 MPa, σy = 40 MPa and τxy = 0. The maximum in-plane shear stress is
A. 40 MPa
B. 10 MPa
C. 20 MPa
D. 60 MPa
View answer and explanation
Correct Option: C
τmax = (σ1 − σ2)/2 = (80 − 40)/2 = 20 MPa.
Q82Civil Engineering (SSC JE)
Hard
A steel bar fixed rigidly at both ends is heated by 50 °C. Take α = 12 × 10⁻⁶ per °C and E = 200 GPa. The thermal stress developed is
A. 60 MPa
B. 240 MPa
C. 120 MPa
D. 12 MPa
View answer and explanation
Correct Option: C
σ = α ΔT E = 12 × 10⁻⁶ × 50 × 200 × 10³ MPa = 120 MPa (compressive).
Q83Civil Engineering (SSC JE)
Hard
A shaft transmits 100 kW at 600 rpm. The torque transmitted is approximately
A. 9549 N·m
B. 159 N·m
C. 955 N·m
D. 1592 N·m
View answer and explanation
Correct Option: D
T = 60 P / (2πN) = 60 × 100 000 / (2π × 600) ≈ 1591.5 N·m.
Q84Civil Engineering (SSC JE)
Easy
The Euler buckling load of a column fixed at both ends, compared to the same column hinged at both ends, is
A. 8 times
B. 2 times
C. 4 times
D. the same
View answer and explanation
Correct Option: C
Effective length is L/2 for fixed-fixed, so Pcr = π²EI / (L/2)² = 4π²EI/L².
Q85Civil Engineering (SSC JE)
Easy
A bar 2 m long elongates by 1 mm under an axial pull. The longitudinal strain is
A. 1 × 10⁻³
B. 5 × 10⁻⁴
C. 2 × 10⁻³
D. 5 × 10⁻³
View answer and explanation
Correct Option: B
Strain = ΔL / L = 1 mm / 2000 mm = 5 × 10⁻⁴.
Q86Civil Engineering (SSC JE)
Medium
The fixed end moment at each support of a fixed beam of span L carrying a central point load W is
A. WL/16
B. WL/8
C. WL/4
D. WL/12
View answer and explanation
Correct Option: B
For a fixed-fixed beam with a central load the end moments are WL/8, equal to the midspan moment.
Q87Civil Engineering (SSC JE)
Easy
In the moment distribution method, the carry-over factor for a prismatic member with the far end fixed is
A. 1
B. 3/4
C. 1/4
D. 1/2
View answer and explanation
Correct Option: D
A moment applied at one end induces half that moment at a fixed far end.
Q88Civil Engineering (SSC JE)
Medium
The stiffness of a prismatic beam of length L and flexural rigidity EI, with the far end hinged, is
A. 3EI / L
B. EI / L
C. 2EI / L
D. 4EI / L
View answer and explanation
Correct Option: A
The stiffness is 4EI/L with the far end fixed and 3EI/L with it hinged (simply supported).
Q89Civil Engineering (SSC JE)
Hard
The Müller-Breslau principle is used to draw
A. shear flow diagrams
B. moment distribution tables
C. influence lines
D. Mohr’s circles
View answer and explanation
Correct Option: C
The influence line for a force or moment is the deflected shape of the structure when a unit displacement or rotation is given at that point, in the direction of the force.
Q90Civil Engineering (SSC JE)
Easy
A perfect plane truss with 7 joints has how many members?
A. 7
B. 9
C. 11
D. 14
View answer and explanation
Correct Option: C
For a perfect plane frame m = 2j − 3 = 14 − 3 = 11.
Q91Civil Engineering (SSC JE)
Medium
The radius of gyration of a rectangular section of depth d about its centroidal axis parallel to the width is
A. d/2
B. d/√12
C. d/4
D. d/√3
View answer and explanation
Correct Option: B
k = √(I/A) = √[(bd³/12)/(bd)] = d/√12.
Q92Civil Engineering (SSC JE)
Easy
For no tension to develop in a rectangular section of depth d under an eccentric axial load, the eccentricity must not exceed
A. d/2
B. d/3
C. d/4
D. d/6
View answer and explanation
Correct Option: D
This is the middle-third rule. The line of thrust must stay within the middle third of the depth so that the stress stays compressive.
Q93Civil Engineering (SSC JE)
Easy
The magnetic bearing of a line is 78° and the magnetic declination is 3° east. The true bearing is
A. 78°
B. 81°
C. 75°
D. 84°
View answer and explanation
Correct Option: B
True bearing = magnetic bearing + declination (east is positive) = 78° + 3° = 81°.
Q94Civil Engineering (SSC JE)
Medium
According to the Bowditch rule, the correction applied to the latitude or departure of a traverse side is proportional to
A. the length of that side
B. the departure of that side only
C. the square of the length of that side
D. the bearing of that side
View answer and explanation
Correct Option: A
The rule distributes the closing error in proportion to the length of each line, which suits cases where angles and distances are equally precise.
Q95Civil Engineering (SSC JE)
Hard
The combined correction for the curvature of the earth and refraction over a sight of 2 km is about (use 0.0673 D², with D in km)
A. 0.538 m
B. 0.314 m
C. 0.269 m
D. 0.135 m
View answer and explanation
Correct Option: C
Combined correction = 0.0673 D² = 0.0673 × 4 = 0.269 m. The curvature correction alone is 0.0785 D².
Q96Civil Engineering (SSC JE)
Hard
A simple circular curve has radius 300 m and deflection angle 60°. The tangent length is
A. 173.2 m
B. 346.4 m
C. 300 m
D. 150 m
View answer and explanation
Correct Option: A
T = R tan(Δ/2) = 300 × tan 30° = 300 × 0.5774 = 173.2 m.
Q97Civil Engineering (SSC JE)
Easy
Contours are drawn at a 5 m interval. Two successive contours are 100 m apart horizontally. The gradient of the ground is
A. 1 in 5
B. 1 in 100
C. 1 in 50
D. 1 in 20
View answer and explanation
Correct Option: D
Gradient = vertical interval / horizontal distance = 5 / 100 = 1 in 20.
Q98Civil Engineering (SSC JE)
Easy
The minimum number of satellites needed to fix a three-dimensional position with a GPS receiver is
A. 3
B. 4
C. 2
D. 6
View answer and explanation
Correct Option: B
Three satellites give three distances, and a fourth is required to solve for the receiver clock error.
Q99Civil Engineering (SSC JE)
Hard
A vertical aerial photograph is taken with a camera of focal length 150 mm from a height of 3000 m above flat ground. The scale of the photograph is
A. 1 : 200 000
B. 1 : 20 000
C. 1 : 10 000
D. 1 : 2 000
View answer and explanation
Correct Option: B
Scale = f / H = 0.15 / 3000 = 1 / 20 000.
Q100Civil Engineering (SSC JE)
Hard
The cement required for one cubic metre of 1:2:4 concrete, using a dry volume factor of 1.54, is
A. 0.154 m³
B. 0.44 m³
C. 0.33 m³
D. 0.22 m³
View answer and explanation
Correct Option: D
Sum of ratios = 7. Cement = 1.54 × 1/7 = 0.22 m³ (about 6.3 bags of 35 litres).
Q101Civil Engineering (SSC JE)
Easy
Excavated soil swells by 25 percent. If 100 m³ of soil is excavated in its natural state, the loose volume to be carted away is
A. 125 m³
B. 150 m³
C. 100 m³
D. 75 m³
View answer and explanation
Correct Option: A
Bulking increases the volume: 100 × 1.25 = 125 m³.
Q102Civil Engineering (SSC JE)
Hard
A building costs ₹5,00,000 and has a scrap value of ₹50,000 after 30 years. Annual depreciation by the straight line method is
A. ₹1,50,000
B. ₹14,000
C. ₹15,000
D. ₹16,667
View answer and explanation
Correct Option: C
Annual depreciation = (cost − scrap value)/life = (5,00,000 − 50,000)/30 = ₹15,000.
Q103Civil Engineering (SSC JE)
Easy
Contingencies in an estimate are provided to meet
A. the cost of the approved drawings
B. the salary of the engineers
C. unforeseen expenditure, usually about 3 to 5 percent of the estimate
D. the cost of land acquisition
View answer and explanation
Correct Option: C
Contingencies cover small unforeseen items. They are generally taken as 3 to 5 percent.
Q104Civil Engineering (SSC JE)
Easy
The volume of cement mortar needed to plaster a wall area of 20 m² with a 12 mm thick coat (ignoring wastage and the dry volume factor) is
A. 2.4 m³
B. 0.24 m³
C. 0.024 m³
D. 0.12 m³
View answer and explanation
Correct Option: B
Volume = area × thickness = 20 × 0.012 = 0.24 m³.
Q105Civil Engineering (SSC JE)
Medium
In the measurement of masonry, no deduction is made for openings whose area is up to
A. 0.1 m²
B. 1.0 m²
C. 0.5 m²
D. 2.0 m²
View answer and explanation
Correct Option: A
The rule of IS 1200 ignores small openings up to 0.1 m² (and ends of beams or joists) to keep the measurement simple.
Q106Civil Engineering (SSC JE)
Easy
A wet soil sample weighs 200 g and after oven drying weighs 180 g. The water content is
A. 20 percent
B. 9 percent
C. 10 percent
D. 11.1 percent
View answer and explanation
Correct Option: D
Water content is the mass of water over the dry mass: (200 − 180)/180 = 0.111 = 11.1 percent.
Q107Civil Engineering (SSC JE)
Hard
A soil has a bulk unit weight of 19 kN/m³ and a water content of 20 percent. The dry unit weight is
A. 15.83 kN/m³
B. 16.5 kN/m³
C. 15.0 kN/m³
D. 22.8 kN/m³
View answer and explanation
Correct Option: A
γd = γ/(1 + w) = 19 / 1.2 = 15.83 kN/m³.
Q108Civil Engineering (SSC JE)
Hard
A saturated soil has a water content of 20 percent and a specific gravity of solids of 2.7. The void ratio is
A. 1.35
B. 0.27
C. 0.74
D. 0.54
View answer and explanation
Correct Option: D
From S e = w G with S = 1: e = 0.20 × 2.7 = 0.54.
Q109Civil Engineering (SSC JE)
Medium
According to Terzaghi’s theory of one-dimensional consolidation, the time required for a given degree of consolidation is proportional to
A. the drainage path length
B. the inverse of the drainage path length
C. the cube of the drainage path length
D. the square of the drainage path length
View answer and explanation
Correct Option: D
Tv = cv t / H², so for the same Tv the time varies as H². Doubling the drainage path increases the time four times.
Q110Civil Engineering (SSC JE)
Hard
A sand has c = 0 and φ = 30°. Under a normal stress of 100 kPa, its shear strength is about
A. 100 kPa
B. 86.6 kPa
C. 57.7 kPa
D. 50 kPa
View answer and explanation
Correct Option: C
τ = c + σ tan φ = 0 + 100 × tan 30° = 57.7 kPa.
Q111Civil Engineering (SSC JE)
Hard
For a cohesionless backfill with φ = 30°, Rankine’s coefficient of active earth pressure is
A. 3
B. 1/2
C. 2/3
D. 1/3
View answer and explanation
Correct Option: D
Ka = (1 − sin φ)/(1 + sin φ) = (1 − 0.5)/(1 + 0.5) = 1/3.
Q112Civil Engineering (SSC JE)
Easy
A pile that transfers most of its load to the soil through the shear resistance along its surface is called
A. an end bearing pile
B. a sheet pile
C. a batter pile
D. a friction pile
View answer and explanation
Correct Option: D
Friction piles are driven into soils like soft clay where no hard stratum is available. End bearing piles rest on hard rock or dense soil.
Q113Civil Engineering (SSC JE)
Medium
In the Indian Standard soil classification system, the group symbol CH stands for
A. silt of high plasticity
B. well-graded gravel
C. clay of low plasticity
D. clay of high plasticity
View answer and explanation
Correct Option: D
The first letter gives the main type (C = clay) and the second gives the plasticity (H = high, with liquid limit above 50).
Q114Civil Engineering (SSC JE)
Hard
The theoretical velocity of efflux from a small orifice under a constant head of 5 m (g = 9.81 m/s²) is
A. 49.0 m/s
B. 4.95 m/s
C. 9.9 m/s
D. 7.0 m/s
View answer and explanation
Correct Option: C
Torricelli’s theorem gives v = √(2gh) = √(2 × 9.81 × 5) = √98.1 = 9.9 m/s.
Q115Civil Engineering (SSC JE)
Hard
A vertical rectangular gate 2 m wide and 3 m deep has its top edge level with the free water surface. The total hydrostatic force on it is (γ = 9.81 kN/m³)
A. 58.86 kN
B. 176.58 kN
C. 88.29 kN
D. 29.43 kN
View answer and explanation
Correct Option: C
F = γ A h̄ = 9.81 × (2 × 3) × 1.5 = 88.29 kN.
Q116Civil Engineering (SSC JE)
Easy
The centre of pressure on a vertical rectangular plate with its top edge at the free surface lies below the surface at
A. 1/2 of the depth
B. 2/3 of the depth
C. 3/4 of the depth
D. 1/3 of the depth
View answer and explanation
Correct Option: B
h* = h̄ + I/(A h̄) = d/2 + (bd³/12)/(bd × d/2) = d/2 + d/6 = 2d/3.
Q117Civil Engineering (SSC JE)
Easy
A floating body is in stable equilibrium if its metacentre lies
A. below the centre of gravity
B. at the centre of buoyancy
C. below the centre of buoyancy
D. above the centre of gravity
View answer and explanation
Correct Option: D
A positive metacentric height (GM > 0) gives a restoring couple when the body is tilted.
Q118Civil Engineering (SSC JE)
Hard
Water flows at 2 m/s through a 100 mm diameter pipe 100 m long with a friction factor f = 0.02. The head loss by the Darcy-Weisbach equation is about
A. 2.04 m
B. 4.08 m
C. 8.0 m
D. 0.41 m
View answer and explanation
Correct Option: B
hf = f L V² / (2 g d) = 0.02 × 100 × 4 / (2 × 9.81 × 0.1) = 8 / 1.962 ≈ 4.08 m.
Q119Civil Engineering (SSC JE)
Medium
The hydraulic grade line represents the sum of
A. the pressure head and the datum head
B. the total energy of the flow
C. the velocity head and the datum head
D. the pressure head and the velocity head only
View answer and explanation
Correct Option: A
The HGL is the piezometric level. The energy grade line is higher than it by the velocity head V²/2g.
Q120Civil Engineering (SSC JE)
Easy
A centrifugal pump must be primed before starting in order to
A. increase the speed of the motor
B. reduce the discharge
C. cool the bearings
D. remove air from the casing and the suction pipe
View answer and explanation
Correct Option: D
A pump full of air cannot create enough suction to lift water, since air is far lighter than water.
Q121Civil Engineering (SSC JE)
Easy
A Pelton wheel is an impulse turbine most suitable for
A. very low head and very high discharge
B. medium head and any discharge only
C. low head and high discharge
D. high head and low discharge
View answer and explanation
Correct Option: D
Water jets strike the buckets at atmospheric pressure, which suits mountain sites with a high head.
Q122Civil Engineering (SSC JE)
Easy
For a Newtonian fluid, the shear stress is proportional to
A. the velocity gradient (rate of shear strain)
B. the velocity
C. the pressure
D. the density
View answer and explanation
Correct Option: A
Newton’s law of viscosity is τ = μ du/dy, where μ is the dynamic viscosity.
Q123Civil Engineering (SSC JE)
Hard
A crop has a duty of 1000 hectares per cumec over a base period of 100 days. The delta is
A. 8.64 m
B. 1.157 m
C. 0.0864 m
D. 0.864 m
View answer and explanation
Correct Option: D
Δ = 8.64 B/D = 8.64 × 100 / 1000 = 0.864 m.
Q124Civil Engineering (SSC JE)
Medium
Water application efficiency is the ratio of
A. the water used by the crop to the water stored in the reservoir
B. the water stored in the root zone to the water delivered to the field
C. the rainfall to the evaporation
D. the water delivered to the field to the water diverted at the headworks
View answer and explanation
Correct Option: B
It shows how well water given to a field is retained for use by the crop, as opposed to deep percolation and runoff.
Q125Civil Engineering (SSC JE)
Easy
The main purpose of lining an irrigation canal is to
A. increase the silt in water
B. reduce seepage losses
C. raise the water table around it
D. reduce the water velocity to zero
View answer and explanation
Correct Option: B
Lining reduces seepage, waterlogging and weed growth, and permits higher velocities and smaller sections.
Q126Civil Engineering (SSC JE)
Easy
A structure that carries canal water over a natural drainage is called
A. an aqueduct
B. a level crossing
C. a super passage
D. an inlet
View answer and explanation
Correct Option: A
In an aqueduct the canal is over the drainage. In a super passage the drainage flows over the canal.
Q127Civil Engineering (SSC JE)
Medium
A unit hydrograph represents the direct runoff hydrograph resulting from
A. a unit area of the catchment
B. any amount of rainfall of unit duration
C. unit discharge of the river
D. a unit depth (1 cm) of effective rainfall over the catchment in a given duration
View answer and explanation
Correct Option: D
Direct runoff from a storm of the same duration is found by scaling and adding the ordinates of the unit hydrograph.
Q128Civil Engineering (SSC JE)
Hard
In the rational formula Q = CiA/360, with Q in m³/s and i in mm/h, the catchment area A is in
A. square metres
B. square kilometres
C. hectares
D. acres
View answer and explanation
Correct Option: C
Check: 1 mm/h over 1 ha = 10 m³/h = 1/360 m³/s. So A in hectares gives the factor 360.
Q129Civil Engineering (SSC JE)
Easy
The storage in a reservoir below the minimum pool level, which cannot be drawn on for supply, is called
A. valley storage
B. live storage
C. surcharge storage
D. dead storage
View answer and explanation
Correct Option: D
Dead storage collects the silt and allows for the sill level of the lowest outlet.
Q130Civil Engineering (SSC JE)
Medium
The consumptive use of water by a crop is the sum of
A. evaporation and transpiration
B. infiltration and percolation
C. seepage and conveyance losses
D. rainfall and runoff
View answer and explanation
Correct Option: A
Consumptive use (evapotranspiration) covers water lost through the soil surface and through the plant leaves, plus the small amount stored in plant tissue.
Q131Civil Engineering (SSC JE)
Easy
A town of 50 000 people has a water demand of 135 litres per capita per day. The average daily demand is
A. 0.675 million litres
B. 5.0 million litres
C. 67.5 million litres
D. 6.75 million litres
View answer and explanation
Correct Option: D
50 000 × 135 = 6 750 000 litres per day.
Q132Civil Engineering (SSC JE)
Hard
A sedimentation tank receives 1800 m³/day and has a plan area of 60 m². The surface overflow rate is
A. 0.033 m³/m²/day
B. 3 m³/m²/day
C. 30 m³/m²/day
D. 108 m³/m²/day
View answer and explanation
Correct Option: C
Overflow rate = Q/A = 1800 / 60 = 30 m³/m²/day.
Q133Civil Engineering (SSC JE)
Medium
Beyond the breakpoint of chlorination, additional chlorine added to water appears as
A. combined residual chlorine
B. chloramines
C. chlorides
D. free residual chlorine
View answer and explanation
Correct Option: D
Up to the breakpoint chlorine is consumed by reactions with ammonia and organic matter. After it, the added chlorine stays as free chlorine.
Q134Civil Engineering (SSC JE)
Medium
In water treatment, alum reacts with the alkalinity of water to form
A. free chlorine
B. sodium chloride
C. calcium carbonate scale
D. aluminium hydroxide floc
View answer and explanation
Correct Option: D
Al₂(SO₄)₃ + 3Ca(HCO₃)₂ → 2Al(OH)₃ + 3CaSO₄ + 6CO₂. The gelatinous floc traps suspended particles.
Q135Civil Engineering (SSC JE)
Easy
The main purpose of a trap in a house drainage system is to
A. increase the flow velocity
B. trap rainwater for reuse
C. filter the sewage
D. prevent foul gases from entering the building
View answer and explanation
Correct Option: D
A water seal in the trap stops sewer gas from coming back through the fixture.
Q136Civil Engineering (SSC JE)
Medium
The CPCB ambient noise standard for a residential area during the day is
A. 45 dB(A)
B. 75 dB(A)
C. 90 dB(A)
D. 55 dB(A)
View answer and explanation
Correct Option: D
The standard limit is 55 dB(A) in the day and 45 dB(A) at night for residential zones.
Q137Civil Engineering (SSC JE)
Easy
Composting of solid waste is
A. burning of waste at high temperature
B. burial of waste in a landfill without air
C. aerobic biological decomposition of organic matter into humus
D. separation of metals using magnets
View answer and explanation
Correct Option: C
Microorganisms decompose the organic fraction in the presence of oxygen, producing a stable compost.
Q138Civil Engineering (SSC JE)
Easy
An electrostatic precipitator is used for removing
A. particulate matter from flue gases
B. ozone from the atmosphere
C. carbon monoxide from exhaust
D. sulphur dioxide from air
View answer and explanation
Correct Option: A
It charges dust particles and collects them on oppositely charged plates. It is not effective on gases.
Q139Civil Engineering (SSC JE)
Hard
The stopping sight distance for a design speed of 60 km/h, with a reaction time of 2.5 s and a coefficient of friction of 0.35, is about
A. 40.5 m
B. 41.7 m
C. 82 m
D. 120 m
View answer and explanation
Correct Option: C
v = 16.67 m/s. Lag = 16.67 × 2.5 = 41.7 m. Braking = v²/2gf = 277.8 / (2 × 9.81 × 0.35) = 40.5 m. SSD = 82.2 m.
Q140Civil Engineering (SSC JE)
Hard
The length of a circular curve of radius 300 m and deflection angle 60° is
A. 628.3 m
B. 157.1 m
C. 314.2 m
D. 173.2 m
View answer and explanation
Correct Option: C
L = R Δ (in radians) = 300 × π/3 = 314.2 m.
Q141Civil Engineering (SSC JE)
Easy
A road has a rising gradient of +2 percent followed by a falling gradient of −2 percent. The algebraic difference of the grades is
A. 0 percent
B. 4 percent
C. 2 percent
D. 8 percent
View answer and explanation
Correct Option: B
The deviation angle is N = g1 − g2 = 2 − (−2) = 4 percent, which a summit curve must accommodate.
Q142Civil Engineering (SSC JE)
Hard
The capacity of a lane is C = 1000 V/S. If V = 50 km/h and the average spacing S = 25 m, the capacity in vehicles per hour is
A. 500
B. 4000
C. 2000
D. 1250
View answer and explanation
Correct Option: C
C = 1000 × 50 / 25 = 2000 vehicles per hour.
Q143Civil Engineering (SSC JE)
Medium
The wheels of Indian railway rolling stock have a coning of
A. 1 in 20
B. 1 in 10
C. 1 in 100
D. 1 in 40
View answer and explanation
Correct Option: A
The tread is tapered at 1 in 20, which centres the wheelset on the track and lets the outer wheel travel farther on curves.
Q144Civil Engineering (SSC JE)
Easy
The Marshall stability test is used for
A. design of bituminous mixes
B. finding the compaction of soil
C. finding the CBR of subgrade
D. checking the quality of cement
View answer and explanation
Correct Option: A
The test finds the optimum bitumen content from the stability, flow, density and voids of compacted specimens.
Q145Civil Engineering (SSC JE)
Medium
The Los Angeles abrasion test on aggregate measures its
A. shape
B. hardness (resistance to abrasion)
C. soundness against weathering
D. toughness against impact
View answer and explanation
Correct Option: B
Aggregates are tumbled with steel balls in a drum and the percentage passing a 1.7 mm sieve is the abrasion value. The impact test measures toughness.
Q146Civil Engineering (SSC JE)
Easy
Crashing of a project network means
A. cancelling the critical activities
B. increasing the float of every activity
C. reducing the project duration by adding resources at extra cost
D. delaying all non-critical activities
View answer and explanation
Correct Option: C
The cheapest activities on the critical path are shortened step by step until the target duration is met or no further reduction is possible.
Q147Civil Engineering (SSC JE)
Easy
Earnest money is a deposit taken from a tenderer
A. to show the seriousness of the bid, forfeited if the tenderer backs out
B. to pay for the drawings
C. as the final payment for the work
D. as the contractor’s profit
View answer and explanation
Correct Option: A
It is returned to unsuccessful bidders and is converted into part of the security deposit for the successful bidder.
Q148Civil Engineering (SSC JE)
Easy
An event in a PERT network is
A. a point in time at the start or end of an activity that uses no time or resources
B. the float available on an activity
C. the longest path through the network
D. a task that takes time and resources
View answer and explanation
Correct Option: A
Events are shown as nodes. Activities are the arrows that consume time.
Q149Civil Engineering (SSC JE)
Hard
For an activity, EST = 5, EFT = 9 and LFT = 14 (days). The total float is
A. 4 days
B. 9 days
C. 5 days
D. 0 days
View answer and explanation
Correct Option: C
Total float = LFT − EFT = 14 − 9 = 5 days.
Q150Civil Engineering (SSC JE)
Easy
For hauling and spreading earth over medium distances, the most suitable machine is a
A. backhoe
B. dragline
C. scraper
D. clamshell
View answer and explanation
Correct Option: C
A scraper excavates, hauls and spreads in one cycle. Draglines and clamshells dig and place within their reach.

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