Intro refrigeration Test 3 (Week 14)

Intro refrigeration Test 3 (Week 14)

12th Grade

11 Qs

quiz-placeholder

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Intro refrigeration Test 3 (Week 14)

Intro refrigeration Test 3 (Week 14)

Assessment

Quiz

Science

12th Grade

Easy

NGSS
HS-PS3-4, HS-PS3-3, MS-PS1-4

Standards-aligned

Created by

Neymar boy

Used 29+ times

FREE Resource

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

When adding refrigerant to a newly evacuated system, which of the following is the best method?

Add vapor refrigerant to the system through the liquid-line service valve

Add liquid refrigerant to the system through the liquid-line service valve

Add liquid refrigerant to the system through the suction-line service valve

Add vapor refrigerant to the system through the suction-line service valve

Tags

NGSS.HS-PS3-4

2.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

When charging a system with vapor refrigerant, what can be done to increase the pressure in the refrigerant tank?

Place the tank in a bath of warm water

Heat the tank with an oxyacetylene torch

Open both the high-side and low-side valves on the gauge manifold

Turn the tank upside down

Tags

NGSS.HS-PS3-4

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

As a system is charged with vapor refrigerant, the refrigerant tank will likely

experience a pressure rise and a temperature drop.

Experience a pressure rise and a temperature rise.

experience a pressure drop and a temperature drop.

experience a pressure drop and a temperature rise.

Tags

NGSS.HS-PS3-4

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

A system's total refrigerant charge can be found on

the nameplate of the outdoor unit of a split-type heat pump system.

the nameplate of the indoor unit of a split-type air-conditioning system.

the nameplate of the outdoor unit of a split-type air-conditioning system.

the nameplate of a package-type air-conditioning system.

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Automatic charging capability, auto-stop features, alarms, and wireless remotes are features that are found on some

analog gauge manifolds.

analog charging scales.

digital gauge manifolds.

refrigerant charging scales.

Tags

NGSS.HS-PS3-3

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Before a full graduated charging cylinder is used to charge a system, it should be

calibrated based on the vacuum level.

evacuated to at least 500 microns.

turned upside down for liquid charging.

calibrated based on the cylinder pressure.

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

The term "blend" refers to a refrigerant that

a. is made up of two or more different refrigerants.

b. has a boiling temperature above 0°F at 0 psig.

c. has a boiling temperature below 0°F at 0 psig.

d. has a single saturation temperature at a given pressure.

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