EE MCQ
EE MCQ
Home
Quiz
Contact Us
Electrical Machines
Minimum allowable resistivity of power transformer insulating oil is generally taken as
1 X 1012 Ω - cm at 27°C and 0.1 X 1012
2 X 1012 Ω - cm at 27°C and 0.2 X 1012
4 X 1012 Ω - cm at 27°C and 0.4 X 1012
3 X 1012 Ω - cm at 27°C and 0.3 X 1012
1 X 1012 Ω - cm at 27°C and 0.1 X 1012
2 X 1012 Ω - cm at 27°C and 0.2 X 1012
4 X 1012 Ω - cm at 27°C and 0.4 X 1012
3 X 1012 Ω - cm at 27°C and 0.3 X 1012
Answer
Download EE MCQ app
Related Question
Electrical Machines
In DC machine torque is proportional to which of the following?
None of these
armature current(Ia)
flux(φ)
both A and B
None of these
armature current(Ia)
flux(φ)
both A and B
Answer
Download EE MCQ app
Electrical Machines
Synchronising power of a synchronous motor varies
directly as Xs2
inversely as 1/Xs
directly as synchronous reactances Xs
All of these
directly as Xs2
inversely as 1/Xs
directly as synchronous reactances Xs
All of these
Answer
Download EE MCQ app
Electrical Machines
The type of DC motor generally used for shears and punches is
Cummulative compound motor.
Differential compound motor.
Shunt motor.
Series motor.
Cummulative compound motor.
Differential compound motor.
Shunt motor.
Series motor.
Answer
Download EE MCQ app
Electrical Machines
Which of the following bearings and their uses are correct
ball bearings → small machines
neither 1 nor 2
both A and B
roller bearings → large machines
ball bearings → small machines
neither 1 nor 2
both A and B
roller bearings → large machines
Answer
Download EE MCQ app
Electrical Machines
If we increase the rotor reactance value, the maximum torque will
not changed
None of these
increase
decrease
not changed
None of these
increase
decrease
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram