EE MCQ
EE MCQ
Home
Quiz
Contact Us
Electrical Machines
For very sensitive and wide speed control, the preferable control method is
Armature control.
Field control.
Ward-Leonard control.
Multiple voltage control.
Armature control.
Field control.
Ward-Leonard control.
Multiple voltage control.
Answer
Download EE MCQ app
Related Question
Electrical Machines
No load test on induction motor is conducted to find which of the following losses?
Rotational loss
All of these
Stator core loss
Stator copper loss
Rotational loss
All of these
Stator core loss
Stator copper loss
Answer
Download EE MCQ app
Electrical Machines
The material used for commutator brushes is mostly
cast iron.
copper.
mica.
carbon.
cast iron.
copper.
mica.
carbon.
Answer
Download EE MCQ app
Electrical Machines
A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is
40 HZ
25 Hz
50 Hz
60 Hz
40 HZ
25 Hz
50 Hz
60 Hz
Answer
Download EE MCQ app
Electrical Machines
For a given torque, reducing diverter resistance of a DC series motor causes
decrease in speed demanding less armature current.
decrease in speed but armature current remains the same.
increase in speed demanding more armature current.
increase in speed but armature currnet remains the same.
decrease in speed demanding less armature current.
decrease in speed but armature current remains the same.
increase in speed demanding more armature current.
increase in speed but armature currnet remains the same.
Answer
Download EE MCQ app
Electrical Machines
The reduced air gap results in an increase
starting torque.
power factor.
cost of operation.
breaking torque.
starting torque.
power factor.
cost of operation.
breaking torque.
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram