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.Management Sciences
Category: Electrical Engineering Mcqs
Overload capacity of diesel engines is usually restricted to_______________?
A. 2 percent
B. 10 percent
C. 20 percent
D. 40 percent
The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as____________?
A. pholoelectric effect
B. chemical effect
C. magnetic effect
D. induction
Which of the following generating machine will offer constant voltage on all loads?
A. Self-excited generator
B. Separately excited generator
C. Level compounded generator
D. All of the above
The base resistor method is generally used in ________________?
A. Amplifier circuits
B. Switching circuits
C. Rectifier circuits
D. None of the above
In a single bus-bar system there will be complete shut down when____________?
A. fault occurs on the bus itself
B. fault occurs on neutral line
C. two or more faults occur simultaneously
D. fault occurs with respect to earthing
Resistance grounding is used for voltage between_________________?
A. 33kVto66kV
B. HkVto33kV
C. 3.3kVandllkV
D. none of the above
The value of reheat factor normally varies from___________?
A. 0.5 to 0.6
B. 0.9 to 0.95
C. 1.02 to 1.06
D. 1.2 to 1.6
Mercury cell has which of the following characteristics ____________?
A. Flat discharge current-voltage curve
B. High power to weight ratio
C. Comparatively longer shelf life under adverse conditions of high temperature and humidity
D. All of the above
For a D.C. generator when the number of poles and the number of armature conductors is fixed, then which winding will give the higher e.m.f___________ ?
A. Lap winding
B. Wave winding
C. Either of A. and B. above
D. Depends on other features of design
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