Electrical Machines Campus Interviews Online Exam Quiz
Electrical Machines Campus Interviews GK Quiz. Question and Answers related to Electrical Machines Campus Interviews. MCQ (Multiple Choice Questions with answers about Electrical Machines Campus Interviews
For a slip ring induction motor having leakage impedance of (1+j), the maximum generated emf would be attained at _________
Options
A : 135°
B : 45°
C : -45°
D : 0°
For a 6-pole three phase squirrel cage induction motor has flux density wave of four poless, then the rotor induced poles will be?
Options
A : 4
B : 6
C : 2
D : 10
In a three phase induction motor of rotor impedance as (0.2+j0.2), rotor current in each phase lags behind the generated emf in that phase to rotor by a power factor angle of _________
Options
A : 45°
B : 135°
C : 90°
D : 0°
For the three phase induction motor having leakage impedance, the maximum generated emf would be attained at an angle of ? having a purely resistive load is?
Options
A : 90 + ?
B : ?
C : 90 – ?
D : -?
In a three phase induction motor, rotor current in each phase lags behind the generated emf in that phase to rotor by a power factor angle of _________
Options
A : atan(r2/x2)
B : atan(x2/r2)
C : atan(x1/r1)
D : atan(r1/x1)
In an induction motor, the stator is also known as _________ and the rotor as __________
Options
A : field winding, armature winding
B : armature winding, field winding
C : armature winding, compensating winding
D : armature winding, interpole winding
Starting torque induced in a three phase induction motor in a direction of rotating magnetic field depends on _________
Options
A : number of poles squared
B : inverse of number of poles
C : number of poles
D : number of number poles cubic
A three phase induction motor is not self starting.
Options
A : True
B : False
C :
D :
The external resistance can be inserted in rotor circuit of _________
Options
A : wound rotor induction motor
B : slip ring induction motor
C : wound rotor as slip ring induction motor
D : neither of motors
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