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.Management Sciences
Category: Electrical Engineering Mcqs
The output impedance of an emitter follower is______________?
A. High
B. Very high
C. Almost zero
D. Low
In a transmitter ____________oscillator is used?
A. Hartley
B. RC phase-shift
C. Wien-bridge
D. Crystal
Annual depreciation cost is calculated by___________?
A. sinking fund method
B. straight line method
C. both A. and B.
D. none of the above
The opposite of susceptibility is___________?
A. Immunity
B. Emission
C. Interference
D. Electromagnetic compatibility
During rheostat braking of D.C. series motors_____________?
A. motor is run as a generator
B. motor is reversed in direction
C. motor is run at reduced speed
____________is a part of the human temperature control system?
A. Digestive system
B. Perspiration system
C. Ear
D. Leg movement
Transmitted power remaining the same, if supply voltage of a D.C. 2-wire feeder is increased 100 percent, saving in copper is____________________?
A. 25 percent
B. 50 percent
C. 75 percent
D. 100 percent
In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will__________?
A. be reduced by half
B. be doubled
C. be four times as high
D. be reduced to one fourth
Mercury as an electric contact material is_______________?
A. a liquid
B. a metal
C. a metal liquid
D. a gas
Incase of reaction steam turbine___________?
A. there is enthalpy drop both in fixed and moving blades
B. there is enthalpy drop only in fixed blades
C. there is enthalpy drop only in moving blades
D. none of the above
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