A. mechanical vibration
B. insulation failure
C. loose connection
D. impulse voltage
A. overload
B. reverse current
C. open-circuits
D. short-circuits
A. the spring tension
B. the rate of flux built up
C. armature core air gap
D. all of the above
A. load flow
B. load flow and short-circuit
C. load flow and stability
D. load flow, short-circuit and stability
E. none of the above
A. good selectivity and reliability
B. economy and simplicity
C. high speed and selectivity
D. all of the above
A. hydro-electric generators
B. steam turbine generators
C. gas turbine generators
D. all of the above
E. none of the above
A. split-phase relays
B. reactance relays
C. impedance relays
D. none of the above