1
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
In an induction motor, if the air gap is increased
A
speed will reduce
B
efficiency will improve
C
power factor will be lower
D
breakdown torque will reduce
2
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
Unbalanced supply voltage given to a $$3-$$ phase, data-connected induction motor will cause
A
zero sequence currents
B
less heating of the rotor
C
negative sequence component current
D
all of these
3
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
In case of a split phase motor, the phase shift between currents in the two windings is around
A
$$30$$ degrees
B
$$70$$ degrees
C
$$90$$ degrees
D
$$120$$ degrees
4
GATE EE 1996
Subjective
+5
-0
The per unit voltage of two synchronous machines connected through a lossless line are $$0.95\,\,\angle \,{10^0}\,\,$$ and $$1.0\,\,\angle \,{0^0}\,\,$$. Match the two sides in the following
$$(a)$$ Real power of Machine $$1$$
$$(b)$$ Reactive power of machine $$1$$
$$(c)$$ Power factor of Machine $$1$$

$$(P)$$ Positive real power
$$(Q)$$ Positive reactive power
$$(R)$$ Negative real power
$$(S)$$ Negative reactive power
$$(T)$$ Leading power factor
$$(U)$$ Lagging power factor