♡ Login
Home
Previous Papers
★
MCQs
Electrical Engineering
Electrical Energy Utilisation and Electric Traction
Ball-bearings are ...
Que.
Ball-bearings are
A.
used upto 75 kW motors
B.
of long life and low friction loss
C.
costlier and noisy particularly at high motor speed
D.
all of the above
Right Answer is :
✓ D. all of the above
⚑ Report
Views 👍 :647
Share :
Copy ☍
✒ To discuss this topic
Comment
✕ Cancel
➤ Post Comment
❖ Related Questions
➣ Rotor of a motor is usually protected ...
➣ Rheostatic braking may be applied to an ...
➣ The semiconductor device used for speed control ...
➣ The main drawback of electric drive is ...
➣ DC motors are still preferred for use ...
➣ The most vital factor against electric traction ...
➣ Aircraft body is ...
➣ The length of arc required depends on ...
➣ For automatic drives the preference is for ...
➣ Load torque constant at all speeds is ...
❖ Take a qick MCQ Test on
➤ Transformers
➤ Electrical Engineering Material
➤ Electronic and Electrical Measurements and Instruments
➤ Communication Systems
➤ Control System
➤ Miscellaneous
➤ Power Electronics
➤ Electrical Energy Utilisation and Electric Traction