EE MCQ
EE MCQ
Home
Quiz
Contact Us
Electrical Machines
A 250 volt dc series motor having an armature resistance of 0.2 Ω takes a load current of 60 A. What will be the torque produced at the shaft of the motor? Consider brush drop of 1V.
266.20 N-m.
133.22 N-m
can not be determined.
234.76 N-m.
266.20 N-m.
133.22 N-m
can not be determined.
234.76 N-m.
Answer
Download EE MCQ app
Related Question
Electrical Machines
A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be
80.
36.
18.
50.
80.
36.
18.
50.
Answer
Download EE MCQ app
Electrical Machines
Silicon content in steel lamination is kept within 5% as it
increases hysteresis loss.
Increases cost.
All of these
makes the material brittle.
increases hysteresis loss.
Increases cost.
All of these
makes the material brittle.
Answer
Download EE MCQ app
Electrical Machines
Two single-phase alternators operating in parallel have induced EMFs on open circuit of 230∠0° and 230∠10° volts and respective reactance of j2 Ω j3 Ω calculate the terminal voltage
150 V.
300 V.
223.V.
200 V.
150 V.
300 V.
223.V.
200 V.
Answer
Download EE MCQ app
Electrical Machines
In a resistance split phase motor, what is the range of torque angle?
25° to 30°
90°
0°
70° to 85°
25° to 30°
90°
0°
70° to 85°
Answer
Download EE MCQ app
Electrical Machines
Eg (generated emf) and Eb (back emf) both are
changes.
different.
none of above.
same.
changes.
different.
none of above.
same.
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram