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EPA 608 Type III Exam | Practice Questions, Answers & Certification Study Guide 2026/2027

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EPA 608 Type III Exam | Practice Questions, Answers & Certification Study Guide 2026/2027

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Institution EPA 608

Course EPA 608

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EPA 608 Type III Exam | Practice Questions, Answers & Certification Study Guide 2026/2027

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EPA 608 Type III Exam
A centrifugal chiller's rupture disk is connected to the chiller's: ________.

a) condenser

b) evaporator

c) liquid line

d) economizer - ------------ANSWER: b) evaporator

A charged low pressure refrigeration system can be efficiently leak checked by:
___________.

a) adding compressed air, since it will be removed from the system by the purging
unit

b) operating the purge system

c) adding HCFC-22

d) raising system pressure by heating with circulated hot water or heating blankets -
------------ANSWER: d) raising system pressure by heating with circulated hot water
or heating blankets

A chiller's rupture disk is connected to the system's ___________.

1) low pressure side

2) high pressure side

3) never used - ------------ANSWER: 1) low pressure side

A hydrostatic tube test kit is used to: _________.

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a) blow all water from the tubes

b) remove any water from the machine

c) vent refrigerant

d) determine if a tube leaks - ------------ANSWER: d) determine if a tube leaks

A hydrostatic tube test kit will ________.

1) determine if a tube leaks

2) determine if there is water in the system

3) remove water from a machine

4) vent water - ------------ANSWER: 1) determine if a tube leaks

A rupture disc on a recovery vessel for low pressure refrigerants relieves at:
________.

a) 5 psig

b) 10 psig

c) 15 psig

d) 20 psig - ------------ANSWER: c) 15 psig

A rupture disk on a recovery vessel for low pressure refrigerants relieves at
_________.

1) 5 psig

2) 5 psia

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3) 10 psig

4) 10 psia

5) 15 psig

6) 15 psia - ------------ANSWER: 5) 15 psig

A system does not have to be evacuated all the way to the required level when:
__________.

a) the repair is major

b) the repair is followed by an evacuation of the appliance to the environment

c) the appliance is being disposed of

d) leaks in the appliance make evacuation to the prescribed level unattainable -
------------ANSWER: d) leaks in the appliance make evacuation to the prescribed
level unattainable

A typical setting for the high pressure cut-out control on a recovery unit used for
evacuating the refrigerant from a low pressure chiller is: _______.

a) 2 psig

b) 5 psig

c) 10 psig

d) 15 psig - ------------ANSWER: c) 10 psig

According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm
Hg to a level above _______ during a standing vacuum test, the system should be
checked for leaks.

a) 1.5 mmHg

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b) 2.0 mm Hg

c) 2.5 mm Hg

d) 3.0 mm Hg - ------------ANSWER: c) 2.5 mm Hg

According to ASHRAE Guideline 3-1996, if the pressure in a system rises from 1 mm
Hg to above __________ during a standard vacuum test, the system should be
checked for leaks.

1) 1.5 mm Hg

2) 2.2 mm HG

3) 2.5 mm Hg

4) 0.5 mm Hg - ------------ANSWER: 3) 2.5 mm Hg

According to ASHRAE Standard 34, what is the safety classification of R-123?

a) A1

b) A2

c) B1

d) B2 - ------------ANSWER: c) B1

According to the EPA, there is approximately ________ of refrigerant vapor left in an
average 350 ton R-11 chiller at 0 psig pressure once all the R-11 liquid has been
removed.

a) None.

b) 10 pounds.

c) 20 pounds.

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