A. above 30 kVA.
B. equal to and above 5 MVA
C. equal to and above 25 MVA
D. none of the above
A. mechanical vibration
B. insulation failure
C. loose connection
D. impulse voltage
A. mechanical vibration
B. insulation failure
C. loose connection
D. impulse voltage
A. Air blast circuit breakers
B. Circuit breaker with SF6 gas
C. Vacuum circuit breakers
D. Oil circuit breakers
A. hydro-electric generators
B. steam turbine generators
C. gas turbine generators
D. all of the above
E. none of the above
A. Zero
B. Unity
C. Infinity
D. None of the above
A. zero current
B. maximum current
C. minimum voltage
D. maximum voltage
A. single phase motors only
B. two phase motors only
C. two single phase motors running in parallel
D. three phase motors
A. low resistance
B. high resistance
C. low impedance
D. high impedance
A. heavy loads
B. internal short-circuits
C. external short-circuits
D. all of the above