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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011)
Different computers are connected to a LAN by a cable and a

Modem
Interface card
Special wires
Telephone line

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DGVCL Exam Paper (11-12-2011)
Transposition of transmission line is done to

Reduce line loss
Reduce corona
Balance line voltage drop
Reduce skin effect

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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?

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

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DGVCL Exam Paper (11-12-2011)
Kilobyte, megabyte and gigabyte are measuring units used in a computer. How many megabytes make one gigabyte?

1204
1024
1042
1000

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DGVCL Exam Paper (11-12-2011)
The effect of electric shock on the human body depends on

All of these
Current
Voltage
Duration of contact

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DGVCL Exam Paper (11-12-2011)
An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be

0.6 leading
0.6 lagging
0.8 lagging
0.5 leading

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