♡ 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 👍 :3.5K
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ accumulative compound DC motor runs at 1500 ...
➣ in a DC motor, the shaft torque ...
➣ which of the following DC motors, phone ...
➣ for parallel operation, the dc generators normally ...
➣ a DC series motor must not be ...
➣ width of a carbon brush should be ...
➣ in a DC machine, the actual flux ...
➣ in a drum type DC armature winding ...
➣ the direction of rotation of DC motor ...
➣ if the back EMF in a DC ...
❖ Take a qick MCQ Test on
➤ DC Basics and Networks
➤ Communication Systems
➤ Switchgear and Protection
➤ Electrical Power Generation and Economic Consideration
➤ Basic Electronics Engineering
➤ Electromagnetic Field Theory
➤ Digital Electronics
➤ Transformers