♡ Login
Home
Previous Papers
★
MCQs
Electrical Engineering
DC Machines
the dummy coils in DC machines are ...
Que.
the dummy coils in DC machines are useful to
A.
increase the efficiency
B.
improve the commutation
C.
reduce the cost of machine
D.
maintain mechanical balance of armature
Right Answer is :
✓ D. maintain mechanical balance of armature
⚑ Report
Views 👍 :3.3K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ the horsepower obtained from the motor shaft ...
➣ The generator ________ has the poorest voltage ...
➣ in a DC machine the sparking between ...
➣ to avoid formation of grooves in the ...
➣ with the increase in the field excitation ...
➣ in a lap winding DC generator, the ...
➣ a flywheel is normal fitted to ...
➣ the factors responsible for rapid wear of ...
➣ the sparking at the brushes, in a ...
➣ the ventilating ducts in most of the ...
❖ Take a qick MCQ Test on
➤ Analog Electronics
➤ Electromagnetic Field Theory
➤ Electrical Engineering Material
➤ Electrical Energy Utilisation and Electric Traction
➤ Communication Systems
➤ Signals and Systems
➤ Digital Electronics
➤ Switchgear and Protection