Discussion
A mechanical brake is preferred to an electrical one for
Answer: D
Correct answer: holding a load at rest indefinitely
Only a friction brake produces torque at zero speed and continues to produce it for as long as required without drawing power or generating heat. Electrical methods all vanish at standstill. For the other three duties - decelerating a large inertia, recovering energy, and controlling a long descent - electrical braking is far better, since a friction brake would have to dissipate the whole of the energy as heat in the lining.
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