ACR108-Unit 41 Practice Test (CRF) - Mr. Graham

ACR108-Unit 41 Practice Test (CRF) - Mr. Graham

University

10 Qs

quiz-placeholder

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ACR108-Unit 41 Practice Test (CRF) - Mr. Graham

ACR108-Unit 41 Practice Test (CRF) - Mr. Graham

Assessment

Quiz

Professional Development

University

Practice Problem

Hard

Created by

Randall Graham

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When performing mechanical troubleshooting on an air-conditioning system, a technician should have _________.

gauges and temperature-testing equipment

an ohmmeter and a digital manometer

a digital manometer and a megger

an ohmmeter and megohmmeter

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The difference in temperature between the refrigerant condensing temperature and the ambient air blowing over the condenser coil is called _______.

subcooling

superheat

Delta T

temperature split

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During standard operating conditions, there will be approximately a ____°F wet-bulb drop from the evaporator inlet to the evaporator outlet.

20

5

10

15

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The humidity in the air at the evaporator outlet will be at almost ____%.

90

50

70

80

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For a system that utilizes a R-410A compressor, the discharge line may be as hot as ____°F under normal conditions. Care must be taken when attaching a thermometer.

150

200

250

175

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Manufacturers report that a fairly high percentage of compressors returned to them under warranty are actually not defective but were reported by the technician as defective.

True

False

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A standard efficiency system usually has a refrigerant boiling temperature of about ____ °F cooler than the entering-air temperature at standard operating conditions.

35

45

15

25

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