DGVCL Exam Paper (12-06-2016)
You should choose Sleep option when

You are leaving for a very short time and want to resume your work shortly.
The computer is tired after working for the whole day.
When computer gets hanged frequently. Let it sleep for some time.
You finish working and are going to bed.

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DGVCL Exam Paper (12-06-2016)
An Auto-transformer (which has only one winding) may be used as a ______ .

Step-Down Transformer
Both Step-Up and Step-Down transformer
Step-Up Transformer
None of these

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DGVCL Exam Paper (12-06-2016)
What will happen if the primary of a transformer is connected to DC supply?

No effect
Transformer will operate with low efficiency
Transformer will operate with high efficiency
Transformer may start to smoke and burn

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