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Electrician
Electrician Set-2
AC-DC Motor Drives
29

AC-DC Motor Drives MCQ with Answers

29) Why the A.C drives are mostly used in process plant?

Easy to operate

Robust in construction

Very high starting torque

Maintenance free long life

Answer is:

Maintenance free long life

AC-DC Motor Drives MCQ with Answers

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Related AC-DC Motor Drives MCQ with Answers

30) How the base speed of D.C shunt motor can be increased by using D.C drive?

By reducing the field current

By increasing the field current

By increasing the supply voltage

By reducing the armature voltage

Answer is:

By reducing the field current

31) How the constant torque can be obtained from armature and field-controlled drives?

By reducing the field current

By increasing the field current

By reducing the armature current

By controlling the armature voltage

Answer is:

By controlling the armature voltage

AC-DC Motor Drives MCQ with Answers

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