ECET EEE Model Paper-1 Part5

 

1. A circuit breaker under normal conditions should be inspected

A. Every day
B. Every week
C. Every month
D. Once in 6 months or 12 months

Answer : Once in 6 months or 12 months
Explanation:-

2. Fuse rating is expressed in terms of

A. Current
B. Voltage
C. kVA
D. kVAR

Answer : Current
Explanation:-

3. Di-electric strength is expressed in

A. kV/mm
B. kV/mm²
C. kV/mm³
D. v/ampere

Answer : kV/mm
Explanation:-

4. The permeability of iron is around

A. 500
B. 800
C. 1200
D. 2000

Answer : 2000
Explanation:-

5. Pressure cables are generally not used beyond

A. 11KV
B. 33KV
C. 66KV
D. 110KV

Answer : 66KV
Explanation:-

6. Curie temperature is the temperature above which ferro- magnetic material becomes

A. Paramagnetic
B. Diamagnetic
C. either of the above
D. both of the above

Answer : Paramagnetic
Explanation:-

7. Power lighting in passanger coach, in a long distance electric train is provided

A. Directly through overhead electric line
B. Through individual generator of bogie and batteries
C. Through rails
D. Through locomotives

Answer : Through individual generator of bogie and batteries
Explanation:-

8. A mercury vapour lamp gives --------------------- light

A. White
B. Pink
C. Yellow
D. Greenish blue

Answer : Greenish blue
Explanation:-

9. Which has the first city in india to adopt electric traction

A. Delhi
B. Madras
C. Calcutta
D. Bombay

Answer : Bombay
Explanation:-

10. Which part of the motor needs maximum attention for maintenance

A. Frame
B. Bearing
C. Stator winding
D. Rotor winding

Answer : Bearing
Explanation:-