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.Management Sciences
Category: Electrical Engineering Mcqs
For measuring a very high resistance we should use_______________?
A. Kelvin’s double bridge
B. Wheat stone bridge
C. Meggar
D. None of the above
Operating point represents__________________?
A. Values of IC and VCE when signal is applied
B. The magnitude of signal
C. Zero signal values of IC and VCE
D. None of the above
In a series–parallel circuit, individual component power dissipation are calculated using_____________?
A. individual component parameters
B. a percent of the total power depending on resistor ratios
C. total current squared multiplied by the resistor values
D. a percent of the voltage division ratio squared
The self-inductance of a solenoid is increased when a soft iron core is inserted into it. This is because the soft iron core_______________?
A. Decreases the resistance of the solenoid
B. Reduces the effect of eddy current
C. Improves the flux linkage between the turns of the coil
D. Increases the mutual inductance between the solenoid and the core
Conduit pipes are normally used to protect _______ cables
A. unsheathed cables
B. armoured
C. PVC sheathed cables
D. all of the above
cooling is the process of dissipating the armature and field winding losses to a cooling medium circulating within the winding insulation wall______________?
A. Direct
B. Indirect
C. Conventional
D. Any of the above
A relay is superior to a mechanical switch because it _______________?
A. Is relatively inexpensive
B. Does not require moving contacts
C. Combines control with power amplification
D. None of the above
A synchronous motor can be started by________?
A. pony motor
B. D.C. compound motor
C. providing damper winding
D. any of the above
The inputs of a NAND gate are connected together. The resulting circuit is _______________?
A. OR gate
B. AND gate
C. NOT gate
D. None of the above
The shaded pole motor is used for__________?
A. high starting torque
B. low starting torque
C. medium starting torque
D. very high starting torque
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