Utilization of electrical System 1

Lets Crack Online Exam

Electrical Engineering MCQ Question Papers: Campus Placement

Subject: Utilization of electrical System 1

Part 1: List for questions and answers of Utilization of Electrical System


Q1. Process in which substance gains electrons is called

a) Oxidation

b) Hydrogenation

c) Sublimation

d) Reduction


Q2. On industrial scale sodium metal is prepared by electrolysis of fused

a) NaOH

b) NaCl

c) NaO

d) NH3


Q3. Corrosion can be prevented by

a) Alloying

b) Tinning

c) Galvanizing

d) all of above


Q4. Electrolyte used for tin plating is

a) Sulphide ore

b) Stannous sulphate

c) Hydrogen sulphate

d) Sodium chloride


Q5. An electrolytic cell uses electrical energy to drive

a) Chemical reaction

b) Physical reaction

c) No reaction

d) None of above


Q6. Radiant efficiency of the luminous source depends on

a) Shape of the source

b) Temperature of the source

c) Wavelength of light rays

d) All of the above 


Q7. Light waves travel with a velocity of

a) 3 x 10^10cm/s

b) 3 x 10^12cm/s

c) 3 x 10^15cm/s

d) 3 x 10^18cm/s


Q8. Carbon arc lamps are commonly used in

a) Domestic lighting

b) Street lighting

c) Cinema projectors

d) Photography


Q9. The unit of solid angle is

a) Solid angle

b) Radian

c) Steradian

d) Candela


Q10. Candela is the unit of

a) Luminous flux

b) Luminous intensity

c) Wavelength

d) None of the above


Q11. The unit of luminous flux is

a) Steradian

b) Candela

c) Lumen

d) Lux


Q12. Overall efficiency of steam locomotive system is close to

a) 5 to 10%

b) 25 to 30%

c) 55 to 60%

d) 75 to 80%


Q13. In a steam locomotive electric power is provided through

a) Battery system

b) Diesel engine generator

c) Overhead wire

d) Small turbo generator 


Q14. Maximum horse power of steam locomotive is

a) 100

b) 500

c) 1500

d) 2500


Q15. The pressure of steam in a locomotive is

a) 10-15 kg/cm^2

b) 20-30 kg/cm^2

c) 40-50 kg/cm^2

d) 80-90 kg/cm^2


Q16. The efficiency of diesel locomotives is nearly

a) 20-25 percent

b) 35-40 percent

c) 50-55 percent

d) 70-75 percent


Q17. The advantage of electric traction over other methods is

a) No pollution problems

b) Faster acceleration

c) Better braking action

d) All of the above


Q18. Suburban railways use

a) 1500 V DC

b) 440 V three phase AC

c) 660 V three phase AC

d) 3.3 kV three phase AC


Q19. Long distance railways use

a) 200 V DC

b) 25 kV Single phase AC

c) 25 kV Two phase AC

d) 25 kV Three phase AC


Q20. The range of horsepower for diesel locomotives is

a) 100 to 500

b) 500 to 1000

c) 1500 to 2500

d) 4000 to 5500 


Part 1: List for questions and answers of Utilization of Electrical System


Q1. Answer: d


Q2. Answer: b


Q3. Answer: d


Q4. Answer: b


Q5. Answer: a


Q6. Answer: b


Q7. Answer: a


Q8. Answer: c


Q9. Answer: c


Q10. Answer: b


Q11. Answer: c


Q12. Answer: a


Q13. Answer: d


Q14. Answer: d


Q15. Answer: c


Q16. Answer: a


Q17. Answer: d


Q18. Answer: a


Q19. Answer: b


Q20. Answer: c