Motor Quiz

Question 1

Motor speed is determined by the number of ______ found in a motor?

Answer 1

poles

Question 2

Name four types of single phase motors?

a)

b)

c)

d)

Answer 2

a) shaded pole motor
b) capacitor start motor
c) capacitor run motor
d) split-phase

Question 3

The rotation of a shaded pole motor is determined by the location of the?

Answer 3

shaded pole

Question 4

A centrifugal switch OPENS or CLOSES when the rotor _______ reaches 75% of its rating?

Answer 4

opens, speed

Question 5

A current relay coil is wired in SERIES or PARALLEL with the START or RUN winding?

Answer 5

series, run

Question 6

A current relay is sensitive to the _______ in the ______ winding

Answer 6

current, run

Question 7

Contacts of a current relay are normally _______ and are wired in SERIES or PARALLEL with the START or RUN winding

Answer 7

open, series, start

Question 8

A potential relay coil is wired in SERIES or PARALLEL with the START or RUN windings

Answer 8

parallel, start

Question 9

A potential relay is sensitive to the ________ in the ________ winding

Answer 9

back emf, start

Question 10

Contacts of a potential relay are normally ______ and are wired in SERIES or PARALLEL with the START or RUN capacitor?

Answer 10

closed, series, start

Question 11

Overloads are ________ devices that sense _____ temperature, and, or ______ and disconnect the motor from its power source

Answer 11

overcurrent, high, current

Question 12

An overload device that indirectly disconnects the motor from its power source is called a _________ duty device

Answer 12

pilot

Question 13

Primary purpose of a start capacitor is to increase _______ to provide the boost required to start the motor

Answer 13

torque

Question 14

A start capacitor is required to be _________ from the circuit after the motor has started

Answer 14

removed

Question 15

Run capacitors are used to improve _______ of the running motor and reduce ______

Answer 15

power factor, current draw