Question 1

Rotor resistance speed control is used in

Accepted Answer

A) squirrel cage induction motor 
B) synchronous motor 
C) slip ring induction motor 
D) dc shunt motor. 
A) squirrel cage induction motor 
B) synchronous motor 
C) slip ring induction motor 
D) dc shunt motor.

Question 2

Load torques can be classified into how many types?

Accepted Answer

A) Three 
B) Two 
C) Four 
D) Five 
A) Three 
B) Two 
C) Four 
D) Five

Question 3

To get speed higher than the base speed of the dc shunt motor

Accepted Answer

A) armature resistance control is used 
B) field resistance control is used 
C) armature voltage control is used 
D) none of these. 
A) armature resistance control is used 
B) field resistance control is used 
C) armature voltage control is used 
D) none of these.

Question 4

The number of operations per hour in case of class IV contactor will be around

Accepted Answer

A) 100 
B) 600 
C) 900 
D) 1200. 
A) 100 
B) 600 
C) 900 
D) 1200.

Question 5

Fan type of loads exhibits which type of load torque characteristics?

Accepted Answer

A) Constant torque characteristics 
B) Linearly rising torque characteristics 
C) Non-Linearly rising torque characteristics 
D) Non-Linearly decreasing torque characteristics 
A) Constant torque characteristics 
B) Linearly rising torque characteristics 
C) Non-Linearly rising torque characteristics 
D) Non-Linearly decreasing torque characteristics

Rotor resistance speed control is used in

Load torques can be classified into how many types?

To get speed higher than the base speed of the dc shunt motor

The number of operations per hour in case of class IV contactor will be around

Fan type of loads exhibits which type of load torque characteristics?

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Exam 7: Contactors, Motors, and Load Torques

Rotor resistance speed control is used in

Load torques can be classified into how many types?

To get speed higher than the base speed of the dc shunt motor

The number of operations per hour in case of class IV contactor will be around

Fan type of loads exhibits which type of load torque characteristics?

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

Electrical Drives and Components

Motors and Drives for Industrial Applications

Motor and Power Systems

Locomotives and Train Systems

Traction Systems and Locomotive Performance

Filters