#5 EPA 608 CORE

#5 EPA 608 CORE

11th Grade

25 Qs

quiz-placeholder

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#5 EPA 608 CORE

#5 EPA 608 CORE

Assessment

Quiz

Other

11th Grade

Easy

Created by

Mike Conway

Used 556+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a reason to heat a system during dehydration?

To prevent oxidation.

To increase oil viscosity.

To decrease dehydration time.

To increase dehydration time.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which refrigerant depletes the ozone layer?

R-717

R-744

R-22

R-32

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the state of the refrigerant entering the compressor of a refrigeration system?

Low pressure liquid

Low pressure vapor

High pressure liquid

High pressure vapor

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is true?

There is no difference between refrigerant grade hydrocarbon refrigerant and propane for grills.

Propane cylinders for grilling contain impurities that can damage refrigeration equipment.

Refrigerant-grade hydrocarbon refrigerant is of lower quality than consumer propane cylinders.

Hydrocarbon refrigerants can be used as a retrofit refrigerant.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do EPA regulations require appliances to have a service aperture or process stub?

To make it easier to recover refrigerant.

To check for open motor windings.

To vent non-condensibles.

To dehydrate the system oil.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which process applies to cleaning refrigerant for immediate reuse by oil separation and single or multiple passes through devices, like replaceable core filter driers, which reduce moisture and acidity?

Recycling

Recovering

Reclaiming

Restoring

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which oil is used with most HFC refrigeration applications?

Esters

Alkyl-benzenes

Mineral oil

Any oil that is compatible with both CFC and HCFC refrigerants

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