EPA 608 TYPE 2 TEST ACTUAL EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+

EPA 608 TYPE 2 TEST 2023-2024 ACTUAL EXAM 210

QUESTIONS AND CORRECT DETAILED ANSWERS

WITH RATIONALES (VERIFIED ANSWERS)

|ALREADY GRADED A+

When servicing a 60-ton packaged rooftop unit, the easiest way to check

the type of refrigerant it uses is to: _________.

a) use your service gauge set and a refrigerant card

b) ask the owner

c) look at the unit nameplate

d) determine the condenser size - ANSWER- c) look at the unit

nameplate

R-410A requires certified recovery and recycling machines rated for at

least: ________.

a) 240 psig

b) 300 psig

c) 400 psig

d) 500 psig - ANSWER- c) 400 psig

A compressor heater is used to: __________.

a) prevent refrigerant vaporization

b) remove entrained water

c) prevent acid pitting

d) reduce the amount of refrigerant in the lubricating oil - ANSWER- d)

reduce the amount of refrigerant in the lubricating oil

R-410A requires a high-pressure manifold gauge and hose set. They

must have a: _________.

a) 2000 psig burst pressure and 400 psig working pressure

b) 2000 psig burst pressure and 800 psig working pressure

c) 4000 psig burst pressure and 400 psig working pressure

d) 4000 psig burst pressure and 800 psig working pressure - ANSWERd) 4000 psig burst pressure and 800 psig working pressure

In a refrigeration system, the component directly following the

evaporator is the: _______.

a) receiver

b) metering device

c) accumulator

d) condenser - ANSWER- c) accumulator

You are going to service an older residential split system air conditioner.

You would expect to find the system charged with which refrigerant?

a) R-11

b) R-12

c) R-22

d) R-502 - ANSWER- c) R-22

When charging an R-12 refrigeration system that uses a water-cooled

condenser, you must first charge with vapor to a pressure of at least

______, before switching to liquid charging.

a) 0 psig

b) 20 psig

c) 35 psig

d) 100 psig - ANSWER- c) 35 psig

When using recovery and recycling equipment manufactured BEFORE

November 15, 1993 technicians must evacuate a unit that has a normal

charge of 10 pounds of CFC-500 to _______ before disposing of the

system.

a) 0 psig

b) 4 inches of Hg vacuum

c) 10 inches of Hg vacuum

d) 15 inches of Hg vacuum - ANSWER- b) 4 inches of Hg vacuum

A deep vacuum is usually measured in: _______.

a) psig

b) psia

c) inches of Hg

d) microns - ANSWER- d) microns

To change the compressor on a system containing R-410A, you must

isolate the compressor then: _____________.

a) simply remove the compressor

b) evacuate the isolated section of the system to atmospheric pressure

and hold. If system pressure does not rise, remove the compressor

c) evacuate the isolated section of the system to 10 inches of vacuum

and hold. If system pressure does not rise, remove the compressor.

d) evacuate the isolated section of the system to 15 inches of vacuum

and hold. If system pressure does not rise, remove the compressor. -

ANSWER- b) evacuate the isolated section of the system to atmospheric

pressure and hold. If system pressure does not rise, remove the

compressor

Every air conditioning or refrigerating system should be protected by a:

_________.