Switchgear and Protection

A. Rewireable fuse
B. Isolator
C. Oil circuit breaker
D. Air break circuit breaker
E. None of the above

A. 1 mega ohms
B. 10 mega ohms
C. 100 mega ohms
D. 500 mega ohms

A. motors
B. power outlet circuits
C. fluorescent lamps
D. light circuits

A. 0.003 sec
B. 0.001 sec
C. 0.01 sec
D. 0.10 sec
E. none of the above

A. interception
B. interception and conduction
C. interception, conduction and dissipation
D. interception, conduction, dissipation and reflection
E. none of the above

A. power frequencies
B. higher frequencies entering generator or transformer units
C. either of the above
D. none of the above

A. 33kVto66kV
B. HkVto33kV
C. 3.3kVandllkV
D. none of the above

A. 2
B. 4
C. 6
D. 10

A. arc suppressing blow out coils
B. wide separation of the opened contacts
C. high speed opening of contacts
D. all of the above

A. in phase with the arc current
B. lagging the arc current by 90″
C. leading the arc current by 90°
D. none of the above