Computer Programming MCQs

A. Speed
B. Load
C. Load angle
D. All of the above

A. D.c. excitation only
B. Speed of the motor
C. Load on the motor
D. Both the speed and rotor flux

A. Gear train arrangement
B. Transmission of mechanical power by shaft
C. Distribution transformer
D. Turbine

A. Alternator type machines
B. Induction type machines
C. Salient pole type machines
D. Smooth cylindrical type machines

A. Under-loaded
B. Over-loaded
C. Under-excited
D. Over-excited

A. The motor stops
B. It runs as a reluctance motor at the same speed
C. It runs as a reluctance motor at a lower speed
D. None of the above

A. Small induction motor
B. D.c. series motor
C. D.c. shunt motor
D. Double winding a.c./d.c. motor

A. Pony motor
B. D.c. compound motor
C. Providing damper winding
D. Any of the above

A. Zero
B. 45°
C. 90°
D. 120°

A. The increased load has to take more current
B. The rotor by shifting its phase backward causes motor to take more current
C. The back e.m.f. decreases causing an increase in motor current
D. The rotor strengthens the rotating field casuing more motor current