A. 1 years
B. 7 Years
C. 10 Years
D. 12 Years
How many years Mariyum Nawaz Scentence to prison? Read More »
Pakistan Current Affairs MCQs A. 1 year
B. 7 years
C. 10 years
D. 12 years
How many years former Prime Minister Nawaz Sharif Scentence to Prison? Read More »
Pakistan Current Affairs MCQs
A. 8 poles
B. 6 poles
C. 4 poles
D. 2 poles
An induction motor with 1000 r.p.m. speed will have____________? Read More »
Polyphase Induction Motors A. three phase transformers
B. compound generators
C. D.C. series motors
D. induction motors
The term ‘cogging’ is associated with___________? Read More »
Polyphase Induction Motors A. two
B. three
C. four
D. none
The number of slip rings on a squirrel cage induction motor is usually____________? Read More »
Polyphase Induction Motors A. 60 to 90%
B. 80 to 90%
C. 95 to 98%
D. 99%
The efficiency of an induction motor can be expected to be nearly____________? Read More »
Polyphase Induction Motors A. 200 Hz
B. 50 Hz
C. 2 Hz
D. 0.2 Hz
A. the magnetising current of the rotor will decrease
B. the power factor will decrease
C. speed of motor will increase
D. the windage losses will increase
In case the air gap in an induction motor is increased? Read More »
Polyphase Induction Motors A. less than 1%
B. 1.5%
C. 2%
D. 4%
In an induction motor, no-load the slip is generally____________? Read More »
Polyphase Induction Motors