Question 1

The magnetic field strength of an electromagnet cannot be increased by

Accepted Answer

A)  the amount of current. 
B)  the type of core. 
C)  the type of material. 
D)  the number of coils in the wire. 
A)  the amount of current. 
B)  the type of core. 
C)  the type of material. 
D)  the number of coils in the wire.

Question 2

The wound rotor construction is not a common AC motor in industry.

Accepted Answer

A) True 
 B)False

Question 3

The centrifugal start switch is usually mounted on the shaft of the AC motor.

Accepted Answer

A) True 
 B)False

Question 4

The shaded pole induction motor is a single phase motor, which has no start and run windings.

Accepted Answer

A) True 
 B)False

Question 5

The commutator segments continually change polarity from positive to negative, which causes the magnetic field in the armature to change polarity form north pole to south pole.

Accepted Answer

A) True 
 B)False

Question 6

The narrower the air gap the stronger the magnetic field.

Accepted Answer

A) True 
 B)False

Question 7

In a series motor, stall torque occurs at the locked rotor condition.

Accepted Answer

A) True 
 B)False

Question 8

The poles of a magnetic are determined by the electronic makeup of the material.

Accepted Answer

A) True 
 B)False

Question 9

The short shunt cumulative compound motor is used most often because the shunt field has a relatively constant current.

Accepted Answer

A) True 
 B)False

The magnetic field strength of an electromagnet cannot be increased by

The wound rotor construction is not a common AC motor in industry.

The centrifugal start switch is usually mounted on the shaft of the AC motor.

The shaded pole induction motor is a single phase motor, which has no start and run windings.

The commutator segments continually change polarity from positive to negative, which causes the magnetic field in the armature to change polarity form north pole to south pole.

The narrower the air gap the stronger the magnetic field.

In a series motor, stall torque occurs at the locked rotor condition.

The poles of a magnetic are determined by the electronic makeup of the material.

The short shunt cumulative compound motor is used most often because the shunt field has a relatively constant current.

Introduction to Industrial Control Systems, Discrete Control Input and Output Devices

Solidstate Devices in Industrial Applications, Operational Amplifiers and Linear ICS

SCRS, Triacs, Other Thryristors, Discrete Automation Sensors and Devices

Analog Processes Control Devices, Sensors and Safety

Special Purpose Motor, Control Devices and Programmable Logic Controllers

Embedded Microcontrollers, Open and Closed Loop Process Control

Industrial Robots, Automation Systems and Data Communication Between Intelligent Machines

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Exam 5: DC Motors, Control Circuits, AC Motors and Variable Speed Drives

The magnetic field strength of an electromagnet cannot be increased by

The wound rotor construction is not a common AC motor in industry.

The centrifugal start switch is usually mounted on the shaft of the AC motor.

The shaded pole induction motor is a single phase motor, which has no start and run windings.

The commutator segments continually change polarity from positive to negative, which causes the magnetic field in the armature to change polarity form north pole to south pole.

The narrower the air gap the stronger the magnetic field.

In a series motor, stall torque occurs at the locked rotor condition.

The poles of a magnetic are determined by the electronic makeup of the material.

The short shunt cumulative compound motor is used most often because the shunt field has a relatively constant current.

Introduction to Industrial Control Systems, Discrete Control Input and Output Devices

Solidstate Devices in Industrial Applications, Operational Amplifiers and Linear ICS

SCRS, Triacs, Other Thryristors, Discrete Automation Sensors and Devices

Analog Processes Control Devices, Sensors and Safety

Special Purpose Motor, Control Devices and Programmable Logic Controllers

Embedded Microcontrollers, Open and Closed Loop Process Control

Industrial Robots, Automation Systems and Data Communication Between Intelligent Machines

Filters