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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
Which of the following cable is extensively used for high tension and low tension work?

VIR cable
TRS cable
XLPE cable
PVC cable

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GETCO Exam Paper (22-07-2015)
Which of the following is not true about fuel cells?

no recharging is needed
more efficient
cost is higher than batteries
need more than two electrode

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GETCO Exam Paper (22-07-2015)
The RMS value of the voltage u(t) = 3 + 4 cos(3t) is

5
3 + 2(1.41)
7
4.12

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

if voltage is given by,
v(t) = V₀ + V₁ cos(3t) + V₂ cos(5t)+ …
RMS value is given by,
√( V₀² + (V₁/√2)² + (V₂/√2)² + …)

GETCO Exam Paper (22-07-2015)
The instantaneous value of power in purely inductive circuit is

changing
zero
constant
none of this

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The instantaneous value of power in purely inductive circuit is changing as it is given as v*i. The average power of purely inductive circuit over a cycle is zero

GETCO Exam Paper (22-07-2015)
Two heaters rated at 500 W, 250 V each are conneted in series across a 250 V, 50 Hz mains. The total power drawn from the supply would be _____ watt.

250
125
500
1000

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GETCO Exam Paper (22-07-2015)
I _____ tennis every Sunday morning

am play
am playing
playing
play

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