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GETCO Exam Paper (30-11-2008)
If a combination of HRC fuse and a C.B. is employed, the C.B. operates for
short circuit currents
low over load currents
this combination is never employed in practice
under all abnormal currents
short circuit currents
low over load currents
this combination is never employed in practice
under all abnormal currents
Answer
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Related Question
GETCO Exam Paper (30-11-2008)
If the folt current is 2000 A, the relay setting is 50 percent & CT ratio is 400/5, the plug setting multiplier is
50
10
25
15
50
10
25
15
Answer
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GETCO Exam Paper (30-11-2008)
Select the most suitable word from the given choices to fill in the blanks to make the sentence meaningfully complete
Yesterday only he promised me to abstain _____ smoking
for
from
with
on
for
from
with
on
Answer
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GETCO Exam Paper (30-11-2008)
The effect of wind pressure is more predominant on
neutral wires
transmission lines
supporting towers
insulator
neutral wires
transmission lines
supporting towers
insulator
Answer
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GETCO Exam Paper (30-11-2008)
Directional over current relays have two exciting coils connected across _____ secondary's of two _____ phases
P.T., different
T., different
T. & P.T., different
T. & P.T., same
P.T., different
T., different
T. & P.T., different
T. & P.T., same
Answer
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GETCO Exam Paper (30-11-2008)
In a transformer it is difficult to measure the efficiency by output-input measurement methods because
the output is sinusoidal and hence cannot be measured
efficiency of transformer is usually high and hence extremely accurate measurements will be necessary
output is out of phase with respect to input
losses are abnormally high
the output is sinusoidal and hence cannot be measured
efficiency of transformer is usually high and hence extremely accurate measurements will be necessary
output is out of phase with respect to input
losses are abnormally high
Answer
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