Repair
and maintenance of electrical equipment
Class:
12
F.M.:50
Time:
2 hours P.M.:
20
Attempt
all questions
Group ‘A’
(Very short questions) 5x2=10
- Mention few advantages of preventive maintenance.
- What do you mean by type test?
- Define repair
- What is PTW system?
- What are the faults that can possibly occur on an electric iron?
Group
‘B’
(Short
answer questions) 5x6=30
- Prepare regular maintenance schedule of dc machine on daily, weekly, monthly, half-yearly, yearly basis.
- Write down safe isolation procedure of transmission line and also make model form to cancel the permit taken to repair transmission line.
- List out the tests to be performed before new installation and explain any one of them in detail.
- Explain the causes of deterioration in electrical machine/equipment.
- Explain the construction and working of electric iron.
Group ‘C’
(Long
answer question)
1x10=10
- Why is it necessary to measure insulation resistance from time to time? Explain the construction and working of the device employed for insulation resistance measurement followed by general procedure to perform IR test on transformer.
Posts
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