Discussion
A single-phase synchronous machine of the reluctance type is used in
Answer: D
Correct answer: clocks and timing devices needing an exact speed
A synchronous machine runs at a speed fixed by the supply frequency and the pole number, with no slip at all. Since the mains frequency is held very accurately over time, such a motor keeps time to the same accuracy - which is what a clock requires and what no induction machine can offer.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development