1. What will happen if the armature rheostat is not in maximum position while s

1. What will happen if the armature rheostat is not in
maximum position while starting
the motor?
2. What will happen if the armature resistance is in minimum
position and the eld
resistance is in maximum position while starting the motor?
3. How do you reverse the direction of rotation of a DC motor?
4. If the armature connection and the eld connection both
are reversed, does the direction
of rotation of the motor reverse?

Question Posted / cp

2 Answers
6581 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

1. What will happen if the armature rheostat is not in maximum position while starting the motor? ..

Answer / durga

3.by changing either the field terminals or by reversing the
terminals of armature terminals.
4.when both are reversed there is no change in the direction
of rotation of motor.

Is This Answer Correct ?

8 Yes

0 No

1. What will happen if the armature rheostat is not in maximum position while starting the motor? ..

Answer / prasanth kamal

1.if the armature rheostat is not in maximum position there will be high starting current that will affect the motor

Is This Answer Correct ?

10 Yes

2 No

Post New Answer

More Mechanical Engineering Interview Questions

which network in india earning more turn over per annum

0 Answers

Hi everyone.. I attended the HAL interview... on 9th dec 2008 @ Bangalore.. the interview was 90% technical... my question are>>>>> 1) Design a rod that should withstand 1000N? (they told that the material is mild steel & they gave me the stress- strain graph for that) 2) what is the principal of hydraulic braking?? 3) whether interchangebility is possible between JIGS & FIXTURES??? 4) what is recent developement in Automobile ENGINE??? 5) abt my final year project (since i m a fresher) 6) some HR questions

3 Answers Bhilai Steel Plant, HAL,

What was the hardest part of obtaining your engineering degree?

0 Answers

Meil written exam papers

0 Answers MEIL,

Is the unit and normal value fuel ratio of an average diesel engine?

0 Answers

what is mean dual combustion turbocharged?

2 Answers CAT,

Dear sir, I am student of mechanical engg.Please,send me reliance energy placement papers.

0 Answers Reliance,

define boiler parts,types and working