Neets Module 3 Ch 3 (Navedtra 14175A)

Front 1

Circuit control devices should NOT be used for which of the following reasons?

Back 1

To remove power from a malfunctioning device

Front 2

Which of the following are types of circuit control devices?

Back 2

Relays, Switches, Solenoids

Front 3

Which of the following is a manual switch?

Back 3

A light switch

Front 4

Which of the following is an automatic switch?

Back 4

A switch that turns on a light in a refrigerator

Front 5

Control or selection of one or more circuits is a function of which of the following switches?

Back 5

A multicontact switch

Front 6

A switch actuator is described by which of the following terms?

Back 6

Toggle

Front 7

What is the maximum number of different single-pole, single throw switch positions possible?

Back 7

One

Front 8

What is the maximum number of different single-pole, double throw switch positions possible?

Back 8

Two

Front 9

Control of a circuit requiring a temporary actuation signal is provided by which of the following switches?

Back 9

Momentary

Front 10

To guard against the accidental actuation of a circuit, which of the following types of switches are used?

Back 10

Locked-out

Front 11

To guard against the accidental turning off of a circuit, which of the following types of switches are used?

Back 11

Locked-in

Front 12

What is the common name for an accurate snap-acting switch?

Back 12

Microswitch

Front 13

Designation of switch current rating is based on which of the following current values?

Back 13

Maximum

Front 14

Designation of switch voltage rating is based on which of the following voltage values?

Back 14

Maximum

Front 15

Checking a switch with the circuit power NOT applied is accomplished by using which of the following meters?

Back 15

Ohmmeter

Front 16

Checking a switch with the power applied is accomplished by using which of the following meters?

Back 16

Voltmeter

Front 17

When you perform preventive maintenance on a switch, which of the following items should be checked?

Back 17

-The terminals for corrosion
-The physical condition of the switch
-The switch operation for smooth and correct operation

Front 18

A solenoid is based upon which of the following principles?

Back 18

A coil attracts a soft iron core when current flows in the coil

Front 19

A solenoid is commonly used in which of the following devices?

Back 19

A starter for a motor vehicle

Front 20

If a solenoid is not operating properly, which of the following items need NOT be checked?

Back 20

Coil

Front 21

If a relay is hermetically sealed with an opaque cover, which of the following methods should be used to determine whether the relay is operating?

Back 21

Place your finger on the cover and feel the relay contact movement

Front 22

If a relay is NOT operating properly, which of the following items need NOT be checked?

Back 22

The armature resistance

Front 23

What should be used to clean the contacts of a relay?

Back 23

A burnishing tool

Front 24

What should be used to adjust contact clearances on a relay?

Back 24

A point bender