Refrigeration System Charging Quiz 7

Refrigeration System Charging Quiz 7

10th Grade

15 Qs

quiz-placeholder

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Refrigeration System Charging Quiz 7

Refrigeration System Charging Quiz 7

Assessment

Quiz

Science

10th Grade

Hard

Created by

AZRI Quizizz

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What safety precautions should be taken when transferring refrigerants?

Wear gloves and a mask

Wear a lab coat and safety boots

Wear goggles and PPEs

Wear a helmet and gloves

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of refrigerant changes states to absorb heat from surrounding areas or substances?

CO2

Secondary refrigerants

Primary refrigerants

Ammonia

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the boiling point of R717, a commonly used ammonia refrigerant?

-33 degrees Celsius

-78.5 degrees Celsius

32 degrees Celsius

0 degrees Celsius

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the most common HFC refrigerant used in domestic and auto air conditioning?

R-134a

R-22

R-717

R-12

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method of charging refrigerants is also known as the low side method?

Low pressure method

Vapour charging method

Liquid charging method

High side method

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if a refrigeration system is under-charged?

Compressor may be damaged due to over-heating

High pressure readings on both suction and discharge

Low pressure readings on both suction and discharge

The system may trip on high pressure switch

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the remedy for an under-charged refrigeration system?

Reduce the refrigerant charge

Locate and correct the leak before charging with the correct amount of refrigerant

Add more refrigerant to the system

Add more oil to the system

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