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.Management Sciences
Category: Electrical Engineering Mcqs
The pulsating d.c. applied to power amplifier causes________________?
A. Burning of transistor
B. Hum in the circuit
C. Excessive forward voltage
D. None of the above
Which of the following is not an operating cost?
A. Maintenance cost
B. Fuel cost
C. Salaries of high officials
D. Salaries of operating staff
Which of the following statements is correct ?
A. The magnetic flux inside an exciting coil is lower than its outside surface
B. The magnetic flux inside an exciting coil is zero
C. The magnetic flux inside the exciting coil is greater than its outside surface
D. The magnetic flux inside the exciting coil is same as on its outside surface
Steam pressure in a steam power station, which is usually kept now-a-days is of the order of____________?
A. 20 kgf/cm2
B. 50 kgf/cm2
C. 100 kgf/cm2
D. 150 kgf/cm2
While calculating Rth in Thevenin’s theorem and Norton equivalent
A. all independent sources are made dead
B. only current sources are made dead
C. only voltage sources are made dead
D. all voltage and current sources are made dead
Which of the following, in a thermal power plant, is not a fixed cost?
A. Fuel cost
B. Interest on capital
C. Depreciation
D. Insurance charges
For swept frequency measurements, the input impedance of the mismatched transmission line would vary with frequency as the electrical length of the transmission line would
A. Decrease with frequency
B. Remains same with change in frequency
C. Increase with frequency
D. Either A. or B.
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