Multiple Choice
In a D.C. generator all of the following could be the effects of iron losses except
A) Loss of efficiency
B) Excessive heating of core
C) Increase in terminal voltage
D) Rise in temperature of ventilating air
Correct Answer:

Verified
Correct Answer:
Verified
Q15: The plugging gives the<br>A)zero torque braking<br>B)smallest torque
Q16: Which of the following motors one will
Q17: Torque developed by a D.C. motor depends
Q18: Which of the following losses are significantly
Q19: Regenerative method of braking is based on
Q20: Which of the following motors is usually
Q21: Why are the D.C. motors preferred for
Q22: Ward-Leonard control is basically a<br>A)voltage control method<br>B)field
Q23: In a manual shunt motor starter<br>A)over load
Q25: D.C. shunt motors are used for driving<br>A)trains<br>B)cranes<br>C)hoists<br>D)machine