Category: Switchgear and Protection

A. in series with circuit
B. in parallel with circuit
C. either in series or in parallel with circuit
D. none of the above

A. compensate for line inductive reactance
B. compensate for line capacitive reactance
C. improve line voltage
D. none of the above

A. good selectivity and reliability
B. economy and simplicity
C. high speed and selectivity
D. all of the above

A. current carrying contacts called electrodes
B. arc extinguishers
C. circuits to break the system
D. transformers to isolate the two systems
E. any 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. 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

A. power
B. current
C. voltage wave
D. all of the above

A. zero current
B. maximum current
C. minimum voltage
D. maximum voltage

A. thermocouple
B. electronic and bimetallic
C. both (A) and (B)
D. none of the above

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