The fuse blows off by___________?
The fuse blows off by___________?
A. burning
B. arcing
C. melting
D. none of the above
Similar Posts
Oil switches are employed for_____________?
Oil switches are employed for_____________?A. low currents circuits
B. low voltages circuits
C. high voltages and large currents circuits
D. all circuitsCircuit breakers usually operate under______________?
Circuit breakers usually operate under______________?A. transient state of short-circuit current
B. sub-transient state of short-circuit current
C. steady state of short-circuit current
D. after D.C. component has ceasedSeries reactors should have________________?
Series reactors should have________________?A. low resistance
B. high resistance
C. low impedance
D. high impedanceThe material used for fuse must have_____________?
The material used for fuse must have_____________?A. low melting point and high specific resistance
B. low melting point and -low specific resistance
C. high melting point and low specific resistance
D. low melting point and any specific resistancerelays are used for phase faults on long line?
relays are used for phase faults on long line?A. Impedance
B. Reactance
C. Either of the above
D. None of the aboveInterruption of large currents by relay requires______________?
Interruption of large currents by relay requires______________?A. arc suppressing blow out coils
B. wide separation of the opened contacts
C. high speed opening of contacts
D. all of the above