A Best Way To Crack Gorenment Job Exams

Electrical Engineering Objective Questions { Induction Motors }

190.  A reluctance motor
A. is self-starting
B. is constant speed motor
C. needs no D.C. excitation
D. all of the above
Discuss in Forum

191. In a hysteresis motor, the rotor must have
A. retentivity
B. resistivity
C. susceptibility
D. none of the above
Discuss in Forum

192.  The rotor of a hysteresis motor is made of
A. aluminium
B. cast iron
C. chrome steel
D. copper
Discuss in Forum

193.  The electric motor used in portable drills is
A. capacitor run motor
B. hysteresis motor
C. universal motor
D. repulsion motor
Discuss in Forum

194. Which of the following applications always have some load whenever switched on?
A. Vacuum cleaners
B. Fan motors
C. Pistol drills
D. All of the above
Discuss in Forum

195.  The speed control of universal motor used for sewing machines is by
A. friction
B. varying the resistance
C. tapping the field
D. centrifugal mechanism
Discuss in Forum

196.  Torque developed by a single phase induction motor at starting is
A. pulsating
B. uniform
C. none of the above
D. zero
Discuss in Forum

Page 28 of 54

« 26 27  28  2930 »