EE MCQ
EE MCQ
Home
Quiz
Contact Us
Electrical Machines
Variation in speed by ward-Leonard control of DC motors occurs due to variation in
Supply voltage.
Armature current.
Field excitaion.
Armature voltage.
Supply voltage.
Armature current.
Field excitaion.
Armature voltage.
Answer
Download EE MCQ app
Related Question
Electrical Machines
For a transformer to be tested at full load conditions but consuming only losses from the main, we do
OC and SC tests
back to back test
load test
None of these
OC and SC tests
back to back test
load test
None of these
Answer
Download EE MCQ app
Electrical Machines
To have sparkless commutation, the armature reaction effect in a DC machine is neutralized by
fixing the brush axis inline with the pole axis.
shifting the brush axis from GNA to MNA.
compensating winding and commutating poles.
increasing field excitation.
fixing the brush axis inline with the pole axis.
shifting the brush axis from GNA to MNA.
compensating winding and commutating poles.
increasing field excitation.
Answer
Download EE MCQ app
Electrical Machines
A series motor is efficiently suitable for
none of these.
constant speed operation.
low starting torque operation.
high starting torque operation.
none of these.
constant speed operation.
low starting torque operation.
high starting torque operation.
Answer
Download EE MCQ app
Electrical Machines
The efficiency of a transformer is mainly dependent on
dielectric losses.
copper losses.
core losses.
stray losses.
dielectric losses.
copper losses.
core losses.
stray losses.
Answer
Download EE MCQ app
Electrical Machines
In IM the rotor lamination can be ________________ than stator laminations.
sipper.
thinner.
rotor can not have any laminations.
thicker.
sipper.
thinner.
rotor can not have any laminations.
thicker.
Answer
Download EE MCQ app
Search
Login here
Google
Download our application
Android
Apple
Follow Us
Facebook
Telegram
Instagram