SSC CGL Tier I - 09 September 2024 - Shift 1
100 questions · 60 minutes · 4 subjects
SSC · Utilization of Electrical Energy practice
Start with free questions. Take a timed mock. Find your weak topics and build a practice session to improve them.
Previous-year papers · timed practice
English SSC CGL Tier I papers. Free 60-minute mocks, 100 questions, 200 marks; +2 correct and −0.5 incorrect. Source: SSC response sheets preserved by SSC Portal. The marked archived keys have not been independently revalidated against final SSC keys; worked explanations are pending review. A/B/C/D correspond to source options 1/2/3/4.
SSC CGL Tier I - 09 September 2024 - Shift 2
73 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 09 September 2024 - Shift 3
76 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 10 September 2024 - Shift 1
60 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 10 September 2024 - Shift 2
73 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 10 September 2024 - Shift 3
100 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 11 September 2024 - Shift 1
74 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 11 September 2024 - Shift 2
69 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 11 September 2024 - Shift 3
70 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 12 September 2024 - Shift 1
78 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 12 September 2024 - Shift 2
78 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 12 September 2024 - Shift 3
68 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 13 September 2024 - Shift 1
70 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 13 September 2024 - Shift 2
61 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 13 September 2024 - Shift 3
66 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 17 September 2024 - Shift 1
66 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 17 September 2024 - Shift 2
58 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 17 September 2024 - Shift 3
78 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 18 September 2024 - Shift 1
77 questions · 60 minutes · 4 subjects
SSC CGL Tier I - 18 September 2024 - Shift 2
68 questions · 60 minutes · 4 subjects
Choose your next topic
These topics contain published free SSC questions. Counts reflect the selected language and paper filters. Archived papers show their source and key status above.
Civil Engineering (SSC JE)
Building Materials
1456 free questions →Civil Engineering (SSC JE)Concrete Technology and RCC
1120 free questions →Civil Engineering (SSC JE)Construction Management
560 free questions →Civil Engineering (SSC JE)Environmental Engineering
896 free questions →Civil Engineering (SSC JE)Estimating, Costing and Valuation
672 free questions →Civil Engineering (SSC JE)Fluid Mechanics and Hydraulics
1008 free questions →Civil Engineering (SSC JE)Hydrology and Irrigation
896 free questions →Civil Engineering (SSC JE)Soil Mechanics and Foundations
896 free questions →Civil Engineering (SSC JE)Steel Structures
560 free questions →Civil Engineering (SSC JE)Strength of Materials and Structural Analysis
1568 free questions →Civil Engineering (SSC JE)Surveying
784 free questions →Civil Engineering (SSC JE)Transportation Engineering
784 free questions →Electrical Engineering (SSC JE)Analog and Digital Electronics
896 free questions →Electrical Engineering (SSC JE)Basic Electrical Engineering
1344 free questions →Electrical Engineering (SSC JE)Circuit Theory and Networks
1568 free questions →Electrical Engineering (SSC JE)Control Systems
672 free questions →Electrical Engineering (SSC JE)Electrical Machines
2016 free questions →Electrical Engineering (SSC JE)Electrical Measurements and Instruments
1120 free questions →Electrical Engineering (SSC JE)Electromagnetism and Magnetic Circuits
448 free questions →Electrical Engineering (SSC JE)Power Electronics and Drives
672 free questions →Electrical Engineering (SSC JE)Power Systems
1568 free questions →Electrical Engineering (SSC JE)Signals and Systems
448 free questions →Electrical Engineering (SSC JE)Utilization of Electrical Energy
448 free questions →English LanguageGrammar and Vocabulary
2028 free questions →English LanguageSSC PYQ - English Language
469 free questions →English LanguageVocabulary
13736 free questions →General AwarenessEnvironment and Ecology
330 free questions →General AwarenessGeneral Science
2983 free questions →General AwarenessGeography
1921 free questions →General AwarenessHistory and Culture
5348 free questions →General AwarenessIndian Economy
1313 free questions →General AwarenessIndian Polity and Governance
3105 free questions →General AwarenessSSC PYQ - General Awareness
343 free questions →General AwarenessScience and Technology
495 free questions →General AwarenessStatic GK
9055 free questions →Mechanical Engineering (SSC JE)Engineering Mechanics
448 free questions →Mechanical Engineering (SSC JE)Fluid Mechanics and Machines
1568 free questions →Mechanical Engineering (SSC JE)Heat Transfer
672 free questions →Mechanical Engineering (SSC JE)IC Engines
672 free questions →Mechanical Engineering (SSC JE)Industrial Engineering, Metrology and Materials
448 free questions →Mechanical Engineering (SSC JE)Machine Design
896 free questions →Mechanical Engineering (SSC JE)Manufacturing and Production Engineering
1344 free questions →Mechanical Engineering (SSC JE)Power Plant Engineering
896 free questions →Mechanical Engineering (SSC JE)Refrigeration and Air Conditioning
672 free questions →Mechanical Engineering (SSC JE)Strength of Materials
1120 free questions →Mechanical Engineering (SSC JE)Theory of Machines
1120 free questions →Mechanical Engineering (SSC JE)Thermodynamics
1344 free questions →Quantitative AptitudeAlgebra
2879 free questions →Quantitative AptitudeArithmetic
12630 free questions →Quantitative AptitudeAverages
1748 free questions →Quantitative AptitudeData Interpretation
1225 free questions →Quantitative AptitudeInterest
3311 free questions →Quantitative AptitudePercentage
2781 free questions →Quantitative AptitudeProfit and Loss
3224 free questions →Quantitative AptitudeRatio and Proportion
2202 free questions →Quantitative AptitudeSSC PYQ - Quantitative Aptitude
295 free questions →Reasoning AbilityAnalogy
666 free questions →Reasoning AbilityBlood Relations
499 free questions →Reasoning AbilityCalendar and Clock
498 free questions →Reasoning AbilityClassification
665 free questions →Reasoning AbilityCoding-Decoding
666 free questions →Reasoning AbilityDirection Sense
499 free questions →Reasoning AbilityLogical Reasoning
21002 free questions →Reasoning AbilityMathematical Operations
499 free questions →Reasoning AbilityNumber Series
11308 free questions →Reasoning AbilityNumber and Letter Series
833 free questions →Reasoning AbilityRanking and Order
333 free questions →Reasoning AbilitySSC PYQ - Reasoning Ability
356 free questions →Reasoning AbilityStatement and Conclusion
333 free questions →Reasoning AbilitySyllogism
499 free questions →Try a free practice session
No account needed. This session stays in this browser tab; sign in for timed tests, bookmarks and saved performance.
A lamp emitting 3000 lumens falls uniformly on a surface of 10 m². The illumination is
Answer and explanation
Correct answer: C
Illumination = flux / area = 3000/10 = 300 lux.
The illumination at a point on a surface from a point source varies
Answer and explanation
Correct answer: A
E = I cos θ / d² is the inverse square law.
Induction heating works on the principle of
Answer and explanation
Correct answer: C
An alternating magnetic field induces eddy currents in a conducting charge, which heat it.
DC series motors are widely used in traction because they have
Answer and explanation
Correct answer: B
The torque varies with the square of the current, so the series motor gives a large torque at low speed.
A room of 10 m × 6 m must be lit to 300 lux. The utilisation factor is 0.5 and the maintenance factor is 0.8. The total luminous flux required is
Answer and explanation
Correct answer: D
Flux = E A / (UF × MF) = 300 × 60 / (0.5 × 0.8) = 45 000 lm.
A 10 kW heating element is designed to operate at 230 V. Its resistance is about
Answer and explanation
Correct answer: A
R = V²/P = 230² / 10 000 = 5.29 Ω.
Regenerative braking in electric traction
Answer and explanation
Correct answer: D
The traction motors act as generators during braking and feed power back to the overhead line.
According to Faraday’s first law of electrolysis, the mass of a substance deposited is proportional to
Answer and explanation
Correct answer: D
m = Z Q, where Z is the electrochemical equivalent of the substance.
A hall of 60 m² needs 500 lux. With a utilisation factor of 0.6 and a maintenance factor of 0.9, the total luminous flux required is about
Answer and explanation
Correct answer: C
Flux = E A/(UF × MF) = 500 × 60 / (0.6 × 0.9) = 55556 lm.
A hall of 100 m² needs 300 lux. With a utilisation factor of 0.5 and a maintenance factor of 0.7, the total luminous flux required is about
Answer and explanation
Correct answer: C
Flux = E A/(UF × MF) = 300 × 100 / (0.5 × 0.7) = 85714 lm.
A hall of 100 m² needs 200 lux. With a utilisation factor of 0.4 and a maintenance factor of 0.9, the total luminous flux required is about
Answer and explanation
Correct answer: D
Flux = E A/(UF × MF) = 200 × 100 / (0.4 × 0.9) = 55556 lm.
A 5 kW resistance heating element is designed for 230 V. Its resistance is about
Answer and explanation
Correct answer: C
R = V²/P = 230² / 5000 = 10.58 Ω.
In electrolytic deposition of copper (electrochemical equivalent Z = 0.00033 g/C), a current of 5 A flows for 3 hours. The mass deposited is about
Answer and explanation
Correct answer: D
m = Z I t = 0.00033 × 5 × 10800 s = 17.82 g.
20 kg of water is heated through 30 °C in an electric heater of efficiency 70 percent (cp = 4.18 kJ/kg·K). The electrical energy consumed is about
Answer and explanation
Correct answer: B
Heat needed = 20 × 4.18 × 30 = 2508 kJ. Energy = 2508/0.7 = 3582.9 kJ = 0.995 kWh.
20 kg of water is heated through 20 °C in an electric heater of efficiency 85 percent (cp = 4.18 kJ/kg·K). The electrical energy consumed is about
Answer and explanation
Correct answer: A
Heat needed = 20 × 4.18 × 20 = 1672 kJ. Energy = 1672/0.85 = 1967.1 kJ = 0.546 kWh.
100 kg of water is heated through 20 °C in an electric heater of efficiency 85 percent (cp = 4.18 kJ/kg·K). The electrical energy consumed is about
Answer and explanation
Correct answer: B
Heat needed = 100 × 4.18 × 20 = 8360 kJ. Energy = 8360/0.85 = 9835.3 kJ = 2.732 kWh.
A luminous flux of 8000 lumens falls uniformly on a surface of 10 m². The illumination is
Answer and explanation
Correct answer: B
E = flux/area = 8000/10 = 800 lux.
A hall of 100 m² needs 200 lux. With a utilisation factor of 0.4 and a maintenance factor of 0.7, the total luminous flux required is about
Answer and explanation
Correct answer: D
Flux = E A/(UF × MF) = 200 × 100 / (0.4 × 0.7) = 71429 lm.
A hall of 20 m² needs 100 lux. With a utilisation factor of 0.5 and a maintenance factor of 0.7, the total luminous flux required is about
Answer and explanation
Correct answer: D
Flux = E A/(UF × MF) = 100 × 20 / (0.5 × 0.7) = 5714 lm.
A 6 V battery has a capacity of 60 Ah. The energy it can store is
Answer and explanation
Correct answer: A
Energy = V × Ah = 6 × 60 = 360 Wh = 0.36 kWh.
Answer the 20 questions, then check your score.
Take a timed topic mastery test