Question 1

The shaded-pole motor contains a standard squirrel-cage rotor.

Accepted Answer

The shaded-pole motor indeed contains a standard squirrel-cage rotor, which is a common characteristic of this type of single-phase induction motor.

Question 2

Shaded-pole motors are commonly wound as ____ motors.&#10;A) one- or three-pole&#10;B) two- or four-pole&#10;C) three- or five-pole&#10;D) four- or six-pole

Accepted Answer

four- or six-pole

Question 3

The shaded-pole motor has a low starting torque and ____.&#10;A) running torque&#10;B) rotation&#10;C) linear acceleration&#10;D) mass

Accepted Answer

The shaded-pole motor has a low starting torque, but it does have a running torque once it starts rotating. It does not relate to linear acceleration, mass or rotation.

Question 4

The shading coil is a large loop of steel wire or a steel band.

Accepted Answer

The shading coil is typically a small loop of copper wire or a copper band that is placed around a portion of the pole in a relay or contactor to reduce chatter and provide a smoother operation.

Question 5

The direction the magnetic field moves across the face of the pole piece ____ the side of the pole piece that has the shaded coil.&#10;A) is determined by&#10;B) affects&#10;C) reveals&#10;D) negates

Accepted Answer

The direction of the magnetic field is determined by the orientation and placement of the magnet and is not affected by the presence of the shaded coil. It is important to know the direction of the magnetic field when working with electromagnets to ensure proper function.

Question 6

The shaded-pole induction motor is popular because of its ____.&#10;A) compatibility with single-speed controls&#10;B) high starting torque&#10;C) reliable capacitor&#10;D) simplicity and long life

Accepted Answer

The shaded-pole induction motor is popular because it is simple in design, making it reliable and long-lasting. While it does not have a high starting torque, it is compatible with single-speed controls. However, it does not have a capacitor, so option C is not correct.

Question 7

The rotating magnetic field of a shaded-pole induction motor is created by a ____ wound around one side of each pole piece.&#10;A) loading coil&#10;B) relay coil&#10;C) shading coil&#10;D) hybrid coil

Accepted Answer

The shading coil is wound around one side of each pole piece in a shaded-pole induction motor to create the rotating magnetic field.

Question 8

The shaded-pole induction motor is considered to be nonreversible.

Accepted Answer

The shaded-pole induction motor is designed to rotate in one direction only and does not have the ability to reverse its direction of rotation.

Question 9

The shaded-pole motor contains a start winding or centrifugal switch.

Accepted Answer

The shaded-pole motor does not contain a start winding or centrifugal switch; it operates using a shaded pole for starting.

Question 10

The shaded-pole induction motor is another type of AC single-phase motor used to a large extent in the air conditioning field.

Accepted Answer

The statement is true. The shaded-pole induction motor is commonly used in air conditioning applications due to its simplicity and reliability.

Deck 12: The Shaded-Pole Induction Motor