Mon Test 2

Question 1

Voltage rating of a replacement capacitor should be

Answer 1

Equal to or greater than

Question 2

The microfarad rating of a start capacitor should be

Answer 2

Equal to but not greater than 20%

Question 3

The microfarad rating for a replacement run capacitor should be

Answer 3

Voltage rating needed plus or minus 10%

Question 4

What is the purpose of a start capacitor

Answer 4

Increase torque

Question 5

What is the purpose of a run capacitor

Answer 5

Increase efficiency and to give phase shift

Question 6

Which capacitor has heat dissipating capabilities

Answer 6

Run capacitor

Question 7

What is the purpose of a bleed resistor

Answer 7

Reduce contact arcing

Question 8

Which type of capacitor is encased in plastic

Answer 8

Start capacitor

Question 9

How would a faulty run capacitor affect the operation of a motor

Answer 9

May not start / high running amps

Question 10

What are the symptoms of an open start capacitor start motor

Answer 10

Will not start

Question 11

What is torque

Answer 11

The strength that a motor produces by turning

Question 12

What part does polarity play in the operation of a motor

Answer 12

Rotation

Question 13

What part of the motor produces an inductive magnetic field within itself to facilitate the rotating motion

Answer 13

Squirrel cage rotor

Question 14

Which winding has most resistance?

Answer 14

Start

Question 15

When checking the capacitor with an analog ohmmeter

Needle to Right of scale and back to infinity = _____

Needle 0 ohms = ____

Needle does not move = ___

Answer 15

Good

Short

Open

Question 16

Which is not a characteristic of a shaded pole motor

Answer 16

Start winding

Question 17

Which is not a characteristic of a split phase motor

Answer 17

High torque

Question 18

Which is not a characteristic of a PSC (permanent split capacitor)

Answer 18

Start capacitor

Question 19

Which is not a characteristic of a CSCR motor (capacitor start capacitor run)

Answer 19

Centrifugal switch or low to medium torque

Question 20

A start winding of a CSR motor remains in the circuit. True or false

Answer 20

False

Question 21

Start winding of a PSC(permanent split capacitor) remains in the circuit continuously. True or false

Answer 21

True

Question 22

What is the stationary part of a motor

Answer 22

Stator

Question 23

What is the rotating part of a motor

Answer 23

Rotor

Question 24

What determines the RPMs of a motor

Answer 24

Number of poles

Question 25

The shaded pole motor is used on pumps or small hermetic compressors. True or false

Answer 25

False

Question 26

Which motor would be used on small propeller fans

Answer 26

Shaded pole

Question 27

What is the main cause of motor failure

Answer 27

Heat or dirt