Question 1

The range of horse power of electric motor drives for rolling mills is of the order of

Accepted Answer

A) 1 to 10 HP 
B) 15 to 25 HP 
C) 50 to 100 HP 
D) 100 to 500 HP. 
A) 1 to 10 HP 
B) 15 to 25 HP 
C) 50 to 100 HP 
D) 100 to 500 HP.

Question 2

In motor circuit static frequency changers are used for

Accepted Answer

A) power factor improvement 
B) improved cooling 
C) reversal of direction 
D) speed regulation. 
A) power factor improvement 
B) improved cooling 
C) reversal of direction 
D) speed regulation.

Question 3

15 minute rated motors are suitable for

Accepted Answer

A) light duty cranes 
B) medium duty cranes 
C) heavy duty cranes 
D) all of the above. 
A) light duty cranes 
B) medium duty cranes 
C) heavy duty cranes 
D) all of the above.

Question 4

The number of sets used in pole changing type squirrel cage motors for derricks and winches, is

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 6. 
A) 2 
B) 3 
C) 4 
D) 6.

Question 5

A wound rotor induction motor is preferred over squirrel cage induction motor when the major consideration involved is

Accepted Answer

A) high starting torque 
B) low starting current 
C) speed control over limited range 
D) all of the above. 
A) high starting torque 
B) low starting current 
C) speed control over limited range 
D) all of the above.

The range of horse power of electric motor drives for rolling mills is of the order of

In motor circuit static frequency changers are used for

15 minute rated motors are suitable for

The number of sets used in pole changing type squirrel cage motors for derricks and winches, is

A wound rotor induction motor is preferred over squirrel cage induction motor when the major consideration involved is

Electric Motors: Selection, Types, and Applications

Motor Selection and Applications in Various Industries

Motor for Various Applications

Motor and Drive System

Motor and Crane Technology: Understanding the Different Types and Applications

Electric Motors and Drives: Exploring Speed, Control, and Efficiency

Contactors, Motors, and Load Torques

Electrical Drives and Components

Motor and Power Systems

Locomotives and Train Systems

Traction Systems and Locomotive Performance

Filters

Exam 9: Motors and Drives for Industrial Applications

The range of horse power of electric motor drives for rolling mills is of the order of

In motor circuit static frequency changers are used for

15 minute rated motors are suitable for

The number of sets used in pole changing type squirrel cage motors for derricks and winches, is

A wound rotor induction motor is preferred over squirrel cage induction motor when the major consideration involved is

Electric Motors: Selection, Types, and Applications

Motor Selection and Applications in Various Industries

Motor for Various Applications

Motor and Drive System

Motor and Crane Technology: Understanding the Different Types and Applications

Electric Motors and Drives: Exploring Speed, Control, and Efficiency

Contactors, Motors, and Load Torques

Electrical Drives and Components

Motor and Power Systems

Locomotives and Train Systems

Traction Systems and Locomotive Performance

Filters