__________________ has relatively wider range of speed control?
__________________ has relatively wider range of speed control? A. Synchronous motor B. Ship ring induction motor C. Squirrel cage induction motorD. D.C. shunt motor
__________________ has relatively wider range of speed control? A. Synchronous motor B. Ship ring induction motor C. Squirrel cage induction motorD. D.C. shunt motor
Rotor of a motor is usually supported on ___________________ bearings? A. ball or roller B. needle C. bush D. thrust
The size of an excavator is usually expressed in terms of_________________? A. ‘crowd’ motion B. angle of swingC. cubic metres D. travel in metres
_________________method of starting a three phase induction motor needs six terminals ? A. Star-delta B. Resistance starting C. Auto-transformer D. None of the above
Which of the following is essentially needed while selecting a motor ? A. PulleyB. Starter C. Foundation pedal D. Bearings
In a paper mill where constant speed is required________________? A. synchronous motors are preferred B. A.C. motors are preferredC. individual drive is preferred D. group drive is preferred
For blowers which of the following motor is preferred ? A. D.C. series motorB. D.C. shunt motor C. Squirrel cage induction motor D. Wound rotor induction motor
Reluctance motor is a________________? A. variable torque motor B. low torque variable speed motorC. self starting type synchronous motor D. low noise, slow speed motor
A reluctance motor_________________? A. is provided with slip rings B. requires starting gear C. has high costD. is compact
___________________is preferred for synthetic fibre mills? A. Synchronous motorB. Reluctance motor C. Series motor D. Shunt motor