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Electrical Engineering Mcqs
Showing 2921 – 2940 of 3,699 verified multiple choice questions with answers and explanations.
Q2921NTS / FPSC / PPSC
Which of the following loss in a D.C. generator is dissipated in the form of heat?
Q2922NTS / FPSC / PPSC
Which of the following steps is likely to result in reduction of hysteresis loss in a D.C. generator ?
Q2924NTS / FPSC / PPSC
D.C. shunt motors are used for driving____________?
Q2925NTS / FPSC / PPSC
Torque developed by a D.C. motor depends upon_____________?
Q2926NTS / FPSC / PPSC
Which of the following loss in a D.C. generator varies significantly with the load current ?
Q2927NTS / FPSC / PPSC
The losses occurring in a D.C. generator are given below. Which loss is likely to have highest proportion at rated load of the generator ?
Q2928NTS / FPSC / PPSC
In a D.C. generator all of the following could be the effects of iron losses except___________?
Q2929NTS / FPSC / PPSC
The hysteresis loss in a D.C. machine least depends on____________?
Q2930NTS / FPSC / PPSC
The main disadvantage of the Ward-Leonard control method is______________?
Q2931NTS / FPSC / PPSC
In Ward-Leonard control the lower limit of speed is imposed by________?
Q2932NTS / FPSC / PPSC
For constant torque drive which speed control method is preferred ?
Q2933NTS / FPSC / PPSC
Ward-Leonard control is basically a____________?
Q2934NTS / FPSC / PPSC
Which motor should not be started on no-load ?
Q2935NTS / FPSC / PPSC
Which of the following motors is most suitable for signalling devices and many kinds of timers ?
Q2936NTS / FPSC / PPSC
Which of the following motors is usually used in house-hold refrigerators ?
Q2937NTS / FPSC / PPSC
Why are the D.C. motors preferred for traction applications ?
Q2938NTS / FPSC / PPSC
If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will_________?
Q2939NTS / FPSC / PPSC