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motor controls

Total questions: 10

Worksheet time: 20mins

Name
Class
Date
1.

PLC stands for

a)

people lie to cops

b)

programmable

logic controller

c)

Public Limited Company

2.

What is an example of an analog input

a)

A motor turning on

b)

A motor turning off

c)

A temparture of a bearing

3.

What does D.I .stand for

a)

digital input

b)

don't interfere

c)

digital integration

4.

Digital Output (D.O.) does what 2 things

(pick 2)

a)

is not needed in PLC programming

b)

allows you to control a voltage with a computer

c)

will produce no action

d)

can turn on a field device (motor,light bulb ect.

5.

What is contactor in a motor control circuit?

a)

an electrical switch that is often used where single phase motors are used

b)

is an electrical safety device designed to protect an electrical circuit.

c)

an electrical device which is used for switching an electrical circuit on or off. It is considered to be a special type of relay.

6.

What is an example of an analog device?

a)

a light bulb

b)

RTD (Resistance Temperature Detector)

c)

a motor

7.

A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by an overcurrent or short circuit.

Is needed in motor control

T/F

a)

True

b)

False

8.

A_____is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals.

a)

contactor

b)

circuit breaker

c)

relay

d)

solenoid

9.

A_______switch is an electrical switch that is often used where a high current circuit, such as a starter motor circuit, is brought into operation by a low current switch.

a)

solenoid

b)

light

c)

disconnect

d)

smart

10.

What type of contact is this

a)

N.O. normally open

b)

N.C. normally close