Electrical Machines
Induction Machines
Marks 1Marks 2
Synchronous Machines
Marks 1Marks 2Marks 5
1
GATE EE 2001
MCQ (Single Correct Answer)
+1
-0.3
A single-phase transformer is to be switched to the supply to have minimum inrush current. The switch should be closed at
A
maximum supply voltage
B
zero supply voltage
C
$$\frac1{\sqrt2}$$ maximum supply voltage
D
$$\frac12$$ maximum supply voltage
2
GATE EE 2001
MCQ (Single Correct Answer)
+1
-0.3
The core flux of a practical transformer with a resistive load
A
is strictly constant with load changes
B
increases linearly with load
C
increases as the square root of the load
D
decreases with increased load
3
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
In a constant voltage transformer (CVT), the output voltage remains constant due to
A
capacitor
B
input inductor
C
saturation
D
tapped windings
4
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
If an ac voltage wave is corrupted with an arbitrary number of harmonics, then the overall voltage waveform differs from its fundamental frequency component in terms of
A
only the peak values
B
only the rms values
C
only the average values
D
all the three measures (peak, rms and average values)
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement