Which of the following motors is usually preferred for kiln drives ?

Related Mcqs:

1. ________________is preferred for automatic drives?

   A. Squirrel cage induction motor B. Synchronous motors C. Ward-Leonard controlled D.C. motors D. Any of the above...

2. Which of the following motors is preferred for traction work ?

   A. Universal motor B. D.C. series motor C. Synchronous motor D. Three-phase induction motor...

3. For which of the following applications D.C. motors are still preferred ?

   A. High efficiency operation B. Reversibility C. Variable speed drive D. High starting torque...

4. For a motor-generator set which of the following motors will be preferred ?

   A. Synchronous motor B. Slip ring induction motor C. Pole changing induction motor D. Squirrel cage induction motor...

5. Which of the following motors is preferred when quick speed reversal is the main consideration ?

   A. Squirrel cage induction motor B. Wound rotor induction motor E. Synchronous motor D. D.C. motor...

6. Which of the following motors is preferred for boom hoist of a travelling crane ?

   A. Single phase motor B. Synchronous motor C. A.C. slip ring motor D. Ward-Leonard controlled D.C. shunt motor...

7. Which of the following motors is preferred when smooth and precise speed control over a wide range is desired ?

   A. D.C. motor B. Squirrel cage induction motor C. Wound rotor induction motor D. Synchronous motor...

8. For derries and winches which of the following drives can be used ?

   A. Pole changing squirrel cage motors B. D.C. motors with Ward-leonard con-trol C. A.C. slip ring motors with variable resistance D. Any of the above...

9. Which of the following drives is suitable for mines where explosive gas exists ?

   A. Steam engine B. Diesel engine C. Battery locomotive D. Any of the above...

10. Ward-Leonard controlled D.C. drives are generally used for _____________________ excavators?

    A. Light duty B. Medium duty C. Heavy duty D. All of the above...