MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Design Electrical Machines knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Horse shoe is usually employed for the small magnets. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 2. |
What is the relation between force and the air gap length in the flat-faced armature type? |
| A. | force is directly proportional to the air gap length |
| B. | force is indirectly proportional to the air gap length |
| C. | force is directly proportional to the square of the air gap length |
| D. | force is indirectly proportional to the square of the air gap length |
| Answer» D. force is indirectly proportional to the square of the air gap length | |
| 3. |
Which among the following are the application of portative electromagnets? |
| A. | lifting magnets |
| B. | magnetic clutches |
| C. | magnetic chucks |
| D. | lifting magnets, magnetic clutches, magnetic chucks |
| Answer» E. | |
| 4. |
How are the air gaps arranged in the flat faced armature type? |
| A. | magnetic in series and mechanical in parallel |
| B. | magnetic in series and parallel |
| C. | mechanical in series and parallel |
| D. | magnetic in parallel and mechanical in series |
| Answer» B. magnetic in series and parallel | |
| 5. |
What material is the flat faced armature type made of? |
| A. | hard steel |
| B. | cast steel |
| C. | cast iron |
| D. | soft steel |
| Answer» C. cast iron | |
| 6. |
HOW_ARE_THE_AIR_GAPS_ARRANGED_IN_THE_FLAT_FACED_ARMATURE_TYPE??$ |
| A. | magnetic in series and mechanical in parallel |
| B. | magnetic in series and parallel |
| C. | mechanical in series and parallel |
| D. | magnetic in parallel and mechanical in series |
| Answer» B. magnetic in series and parallel | |
| 7. |
What is the relation between force and the air gap length in the flat-faced armature type?$ |
| A. | force is directly proportional to the air gap length |
| B. | force is indirectly proportional to the air gap length |
| C. | force is directly proportional to the square of the air gap length |
| D. | force is indirectly proportional to the square of the air gap length |
| Answer» D. force is indirectly proportional to the square of the air gap length | |
| 8. |
Which_among_the_following_are_the_application_of_portative_electromagnets?$ |
| A. | lifting magnets |
| B. | magnetic clutches |
| C. | magnetic chucks |
| D. | lifting magnets, magnetic clutches, magnetic chucks |
| Answer» E. | |
| 9. |
What is the relation of the force and the air gap length in the flat faced plunger type? |
| A. | force is directly proportional to the air gap length |
| B. | force is indirectly proportional to the air gap length |
| C. | force is directly proportional to the square of the air gap length |
| D. | force is indirectly proportional to the square of the air gap length |
| Answer» D. force is indirectly proportional to the square of the air gap length | |
| 10. |
How many air gaps are present in the flat-faced plunger type? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 11. |
Horse_shoe_is_usually_employed_for_the_small_magnets? |
| A. | true |
| B. | false |
| Answer» B. false | |
| 12. |
What type of magnet is made use of to produce large force through a relatively small distance? |
| A. | flat-faced armature type |
| B. | horse shoe type |
| C. | flat-faced plunger type |
| D. | flat-faced plunger type and horse shoe type |
| Answer» B. horse shoe type | |
| 13. |
How many most commonly used electromagnets are present? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 14. |
What type of supply is being provided to the portative electromagnet? |
| A. | only ac supply |
| B. | only dc supply |
| C. | ac and dc supply |
| D. | ac or dc supply |
| Answer» C. ac and dc supply | |
| 15. |
How does the portative electromagnet work as? |
| A. | holding magnet |
| B. | connecting magnet |
| C. | repulsion magnets |
| D. | attraction magnets |
| Answer» B. connecting magnet | |
| 16. |
Among the following what are the applications of the tractive electromagents? |
| A. | track switches |
| B. | electric bells |
| C. | buzzers |
| D. | track switches, bells,buzzers |
| Answer» E. | |
| 17. |
What is the supply given to the tractive electromagnets? |
| A. | only dc supply |
| B. | only ac supply |
| C. | ac and dc supply |
| D. | ac or dc supply |
| Answer» E. | |
| 18. |
What is the other name of the Tractive electromagnet and what is the means of movement of the armature? |
| A. | solenoidal, electrical movement |
| B. | solenoidal, mechanical movement |
| C. | traction, electrical movement |
| D. | traction, mechanical movement |
| Answer» C. traction, electrical movement | |
| 19. |
How many types of electromagnets are present? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |