DGVCL Exam Paper (11-12-2011)
All the peripheral devices connected to a computer require power to work. Which of the following voltages is required for the motherboard to work?

Negative cycle of sine wave
AC
DC
Positive cycle of sine wave

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DGVCL Exam Paper (11-12-2011)
A fuse wire should have

Low specific resistance and low melting point
Low specific resistance and high melting point
High specific resistance and high melting point
High specific resistance and low melting point

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DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

Diameter of the conductor
Spacing between the conductors
The length of the conductor
Both spacing between the conductors and diameter of the conductor

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DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

It has a higher efficiency
It is suitable for higher speeds
It can be started with the help of rotor resistances
It's power factor is higher

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