ACR-108 Unit 13 Pre-Assessment

ACR-108 Unit 13 Pre-Assessment

Professional Development

30 Qs

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ACR-108 Unit 13 Pre-Assessment

ACR-108 Unit 13 Pre-Assessment

Assessment

Quiz

Other

Professional Development

Practice Problem

Hard

Created by

Randall Graham

Used 1+ times

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The liquid-vapor mix in a partial liquid/partial vapor-filled control is referred to as a

Subcooled liquid

Superheated fluid

Flammable fluid

Volatile liquid

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes the makeup of a diaphragm?

Thin, flexible steel

Thick, rigid steel

Thick, flexible steel

Thin, rigid steel

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is created when a set of electrical contacts opens or closes?

An overcurrent condition

A power surge

A complete electric circuit

An electric arc or spark

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A ______ varies its resistance to current flow based on its temperature.

thermistor

thermometer

thermocouple

thermopile

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a “rod and tube”-type control device,

the rod pushes a mechanical linkage to open or close a valve or set of electrical contacts.

the rod, when heated, pushes against the tube to open or close a valve or set of electrical contacts.

the tube pushes a mechanical linkage to open or close a valve or set of electrical contacts.

the mechanical linkage pushes against the tube to open or close a valve or set of electrical contacts.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The component part of a control that operates on the fluid expansion concept is the

thermocouple.

thermopile.

transducer.

diaphragm.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All of the following devices rely on the principle that different metals expand and contract at different rates except the

thermocouple.

rod and tube.

heat motor valve.

snap disc.

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