A single-phase induction motor is__________?
(A) inherently self-starting with high torque
(B) inherently self-starting with low torque
(C) inherently non-self-starting with low torque
(D) inherently non-self-starting with high torque
Which of the following motors can be used for unity power factor ?
(A) Capacitor run motor
(B) Shaded pole motor
(C) Hysteresis motor
(D) Schrage motor
Which type of load is offered by cranes and hoists ?
(A) Gradually varying load
(B) Non-reversing, no-load start
(C) Reversing, light start
(D) Reversing, heavy start
The wattage rating for a ceiling fan motor will be in the range_________?
(A) 200 to 250 W
(B) 250 to 500 W
(C) 50 to 150 W
(D) 10 to 20 W
The wattage of motor for driving domestic sewing machine will be around__________?
(A) 100 to 150 W
(B) 40 to 75 W
(C) 10 to 30 W
(D) 5 to 10 W
In case of high speed universal motor which of the following needs more attention?
(A) End play
(B) Air gap
(C) Insulation in rotor
(D) Balancing of rotor
The repulsion-start induction-run motor is used because of___________?
(A) good power factor
(B) high efficiency
(C) minimum cost
(D) high starting torque
In case of a shaded pole motor the direction of rotation of the motor is__________?
(A) from main pole to shaded pole
(B) from shaded pole to main pole
(C) either of the above depending on voltage
(D) either of the above depending on power factor
Which of the following single-phase induction motors is generally used in time phonographs ?
(A) Resistance start
(B) Capacitor start capacitor run
(C) Shaded pole
(D) Universal
Which of the following motors has highest starting torque ?
(A) Repulsion motor
(B) Shaped pole motor
(C) Capacitor-start motor
(D) Split-phase motor