Home »
gate ee mcq
» For a single phase capacitor start induction motor which of the following statements is valid ? (Gate-EE-2007)
M. Senthilkumar4:09:00 AM
For a single phase capacitor start induction motor which of the following statements is valid ? (Gate-EE-2007)
(A) The capacitor is used for power factor improvement
(B) The direction of rotation can be changed by reversing the main winding terminals
(C) The direction of rotation cannot be changed
(D) The direction of rotation can be changed by interchanging the supply terminals
Answer: B
The direction of rotation can be changed by either reversing the main winding terminals or starting winding terminals.
Related Posts:
The colour code of 1K ohm resistor is
The colour code of 1K ohm resistor is (GATE-EE-1999)
A. black,brown,red
B. red, brown,brown
C. brown,black,red
D. black,black,red
Explanatory answer:
for
Brown : 1
Black : 0
red &nbs… Read More
The slip of an induction motor normally does not depend on
The slip of an induction motor normally does not depend on (GATE-EE-2012)
A. Rotor speed
B. Synchronous speed
C. Shaft torque
D. Core loss component
EXPLANATORY ANSWER :
Slip= Ns-Nr / Ns
So slip depends… Read More
For a single phase capacitor start induction motor which of the following statements is valid ? (Gate-EE-2007)
For a single phase capacitor start induction motor which of the following statements is valid ? (Gate-EE-2007)
(A) The capacitor is used for power factor improvement
(B) The direction of rotation can be changed by revers… Read More
An ammeter has a current range of 0 - 5 A, and its internal resistance is 0.2Ω . In order to change the range to 0 - 25 A, we need to add a resistance of
An ammeter has a current range of 0 - 5 A, and its internal resistance is 0.2Ω . In
order to change the range to 0 - 25 A, we need to add a resistance of
… Read More
The transfer function of a system is given as
The transfer function of a system is given as
This system is (GATE-EE-2008)
… Read More
0 comments:
Post a Comment