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.Management Sciences
Category: Electrical Engineering Mcqs
74. Sparking occurs when a load is switched off because the circuit has high_________?
A. resistance
B. inductance
C. capacitance
D. impedance
The ratio of maximum displacement deviation to full scale deviation of the instrument is called_______________?
A. static sensitivity
B. dynamic deviation
C. linearity
D. precision or accuracy
The substances which have a large number of free electrons and offer a low resistance are called____?
A. insulators
B. inductors
C. semi-conductors
D. conductors
Buchholz’s relay gives warning and protection against_________________?
A. electrical fault inside the transformer itself
B. electrical fault outside the transformer in outgoing feeder
C. for both outside and inside faults
D. none of the above
Which of the following is the unit of magnetic flux density ?
A. weber
B. lumens
C. tesla
D. none of the above
Ground resistance should be designed such that_____________?
A. grounding resistance should be as low as possible
B. grounding resistance should be as high as possible
C. grounding resistance should be always zero
D. none of the above
The maximum collector efficiency of class B operation is ________________?
A. 50%
B. 90%
C. 5%
D. 5%
Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across______________?
A. Rl
B. Ri
C. either Rl or Ri
D. none of them
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