Hysteresis Motor Multiple Choice Questions and Answers
41. A hysteresis motor works on the principle of
A.Hysteresis loss
B.Magnetisation of motor
C.Eddy current loss
D.Electromagnetic induction
✔ View Answer
A.Hysteresis loss
✍ Your Comments
42. As hysteresis motors are free from mechanical and magnetic vibrations therefore these are considered as suitable for
A.Fans
B.Blowers
C.Sound equipment
D.Mixer grinders
✔ View Answer
✍ Your Comments
43. In a hysteresis motor, the rotor must have
A.Retentivity
B.Resistivity
C.Susceptibility
D.None of the above
✔ View Answer
✍ Your Comments
44. The rotor of a hysteresis motor is made of
A.Aluminium
B.Cast iron
C.Chrome steel
D.Copper
✔ View Answer
✍ Your Comments
45. Hysteresis motor is particularly useful for high-quality record players and tape-recorders because
A.It revolves synchronously
B.It is not subject to any magnetic or mechanical vibrations
C.It can be easily manufactured in extremely small sizes of upto 1 W output
D.It develops hysteresis torque which is extremely steady both in amplitude and phase
✔ View Answer
✍ Your Comments