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Electrical Machines
Induction Machines
Marks 1Marks 2
D.C Machines
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Synchronous Machines
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Transformers
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1
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
The direction of rotation of a 3-phase induction motor is clockwise when it is supplied with 3-phase sinusoidal voltage having phase sequence A-B-C. For counter clockwise rotation of the motor, the phase sequence of the power supply should be
A
B-C-A
B
C-A-B
C
A-C-B
D
B-C-A or C-A-B
2
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
The type of single-phase induction motor having the highest power factor at full load is
A
shaded pole type
B
split-phase type
C
capacitor-start type
D
capacitor-run type
3
GATE EE 2003
MCQ (Single Correct Answer)
+1
-0.3
No-load test on a 3-phase induction motor was conducted at different supply voltages and a plot of input power versus voltage was drawn. This curve was extrapolated to intersect the y-axis. This intersection point yields
A
Core loss
B
Stator copper loss
C
Stray load loss
D
Friction and windage loss
4
GATE EE 2003
MCQ (Single Correct Answer)
+1
-0.3
Group I lists different applications and Group II lists the motors for these applications. Match the application with the most suitable motor and choose the right combination among the choices given there after:

Group I
P. Food mixer
Q. Cassette tape recorder
R. Domestic water pump
S. Escalator

Group II
1. Permanent magnet dc motor
2. Single phase induction motor
3. Universal motor
4. Three phase induction motor
5. DC series motor
6. Stepper motor

A
$$\begin{array}{l}P\;\;\;Q\;\;\;R\;\;\;S\\3\;\;\;\;6\;\;\;\;4\;\;\;\;5\\\end{array}$$
B
$$\begin{array}{l}P\;\;\;Q\;\;\;R\;\;\;S\\1\;\;\;\;3\;\;\;\;2\;\;\;\;4\\\end{array}$$
C
$$\begin{array}{l}P\;\;\;Q\;\;\;R\;\;\;S\\3\;\;\;\;1\;\;\;\;2\;\;\;\;4\\\end{array}$$
D
$$\begin{array}{l}P\;\;\;Q\;\;\;R\;\;\;S\\3\;\;\;\;2\;\;\;\;1\;\;\;\;4\\\end{array}$$
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Questions Asked from Marks 1
GATE EE 2025 (1) GATE EE 2024 (1) GATE EE 2023 (1) GATE EE 2022 (1) GATE EE 2017 Set 2 (1) GATE EE 2017 Set 1 (1) GATE EE 2016 Set 2 (1) GATE EE 2016 Set 1 (1) GATE EE 2015 Set 2 (1) GATE EE 2014 Set 2 (2) GATE EE 2014 Set 3 (2) GATE EE 2014 Set 1 (1) GATE EE 2013 (1) GATE EE 2012 (1) GATE EE 2010 (1) GATE EE 2005 (2) GATE EE 2004 (3) GATE EE 2003 (2) GATE EE 2002 (1) GATE EE 1999 (2) GATE EE 1998 (1) GATE EE 1997 (1) GATE EE 1996 (5) GATE EE 1995 (1) GATE EE 1994 (1) GATE EE 1993 (1)
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