A rotary converter in general construction and design, is more or less like___________?

Related Mcqs:

1. In a rotary converter I2R losses as compared to a D.C. generator of the same size will be___________?

   A. same B. less C. double D. three times...

2. In a rotary converter armature currents are______________?

   A. d.c. only B. a.c. only C. partly a.c. and partly d.c....

3. A rotary converter operates at a______________?

   A. low power factor B. high power factor C. zero power factor D. none of the above...

4. A rotary converter is a single machine with______________?

   A. one armature and one field B. two armatures and one field C. one armature and two fields D. none of the above...

5. A rotary converter combines the function of____________?

   A. an induction motor and a D.C. generator B. a synchronous motor and a D.C. generator C. a D.C. series motor and a D.C. generator D. none of the above...

6. In a single phase rotary converter the number of slip rings will be_____________?

   A. two B. three C. four D. six E. none...

7. With a motor converter it is possible to obtain D.C. voltage only upto__________?

   A. 200-100 V B. 600—800 V C. 1000—1200 V D. 1700—2000 V...

8. A synchronous converter can be started______________?

   A. by means of a small auxiliary motor B. from AC. side as induction motor C. from D.C. side as D.C. motor D. any of the above methods E. none of the above methods...

9. A commutating rectifier consists of commutator driven by___________?

   A. an induction motor B. a synchronous motor C. a D.C. series motor D. a D.C. shunt motor...

10. Mercury, in arc rectifiers, is chosen for cathode because________________?

    A. its ionization potential is relatively low B. its atomic weight is quite high C. its boiling point and specific heat are low D. it remains in liquid state at ordi¬nary temperature E. all of the above...