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EPA 608 NEC 2023

EPA 608 Type II & III Practice Test 1

This practice test focuses on Type II high-pressure equipment, including split systems, heat pumps, rooftop units, and light commercial refrigeration. It covers the required evacuation vacuum levels (10 and 15 inches of mercury) based on refrigerant charge size, plus a few Type III comparison questions.

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The EPA 608 certification is required by law for any technician who purchases or handles refrigerants. It covers safe handling, leak detection, recovery, and environmental regulations.

Type I covers small appliances (≤5 lbs refrigerant), Type II covers high-pressure systems, Type III covers low-pressure systems, and Universal covers all three. Most HVAC technicians pursue Universal certification.

You must score at least 70% on each section of the exam. The Universal exam has four parts: core, Type I, Type II, and Type III.

Type II & III Exam Tip: Remember the split: under 200 lbs of charge needs 10 inches of mercury vacuum; 200 lbs or more needs 15 inches. Charge size is the key number to check first.

25

Questions

25 min

Time

70%

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EPA 608 Type II & III Practice Test 1 — Question List

Question 1: A leak in a Type II appliance, such as a rooftop package unit, causes refrigerant to do what?

Push out into the atmosphere
Get pulled in by outside air
Stay inside the system
Turn into a solid

Question 2: Which of these is a Type II appliance?

Residential split system air conditioner
Large centrifugal chiller
Low-pressure chiller in a hospital
Vacuum-pressure chiller

Question 3: A Type II system holds 150 lbs of refrigerant charge. Before opening it for a major repair, what vacuum level must the technician reach?

0 in. Hg
10 in. Hg
4 in. Hg
15 in. Hg

Question 4: A rooftop unit has a charge of 220 lbs. What vacuum level is required before the system is opened for disposal?

10 in. Hg
20 in. Hg
25 in. Hg
15 in. Hg

Question 5: True or False: The required evacuation level for a Type II system depends on how much refrigerant charge the system holds.

False
Only for chillers
True
Only for R-410A systems

Question 6: Which appliance falls under Type II certification?

Large low-pressure chiller
Centrifugal chiller
Heat pump
None of these need certification

Question 7: A technician is preparing to recover refrigerant from a light commercial walk-in cooler before a compressor replacement. The system has a charge of 90 lbs. What evacuation level must be reached before opening the system?

0 in. Hg, no vacuum needed
10 in. Hg
15 in. Hg
29 in. Hg

Question 8: Rooftop package units and heat pumps are examples of which certification type?

Type I
Type III
Type II
Universal only

Question 9: Which charge amount requires the deeper 15 in. Hg vacuum level on a Type II system?

50 lbs
100 lbs
199 lbs
200 lbs or more

Question 10: A technician is asked whether a small reach-in refrigeration case at a convenience store needs Type II or Type III certification. What is the correct answer?

Type III, because it is refrigeration
Type II, because it is high-pressure equipment
Type I only
No certification is needed

Question 11: A split system with 175 lbs of charge needs a compressor replacement. Partway through, the technician recovers refrigerant and reads 12 in. Hg on the gauge. Is the system ready to open?

No, needs 15 in. Hg since 175 lbs is close to 200
No, needs 20 in. Hg
Yes, but only if it is R-410A
Yes, 12 in. Hg is deeper than the required 10 in. Hg

Question 12: What is the main reason a deep vacuum is required before opening a Type II system for repair?

It cools the compressor
It removes leftover refrigerant and moisture so the system is safe and dry to open
It increases refrigerant pressure
It tests the thermostat

Question 13: Which of these is NOT a Type II appliance?

Residential heat pump
Large low-pressure centrifugal chiller
Rooftop package unit
Walk-in cooler

Question 14: A technician needs to know the exact cutoff between the two Type II evacuation levels. What is it?

100 lbs
150 lbs
200 lbs
250 lbs

Question 15: A rooftop unit holds 210 lbs of refrigerant charge. What vacuum level must be reached before major repair?

10 in. Hg
12 in. Hg
15 in. Hg
0 in. Hg

Question 16: True or False: Type II covers low-pressure chillers used in large office buildings.

True
False
Only if R-410A is used
Only above 500 tons

Question 17: Which of the following best describes a Type II appliance's operating pressure?

Always below atmospheric pressure
Exactly at atmospheric pressure
Always above atmospheric pressure
Pressure does not matter for classification

Question 18: Which of these is a light commercial refrigeration example under Type II?

Centrifugal chiller
Absorption chiller
Low-pressure chiller
Walk-in cooler

Question 19: A technician is disposing of an old split system with an unknown charge amount because the nameplate is missing. To stay safe and compliant, which vacuum level should the technician use?

15 in. Hg, the deeper level, to be safe
10 in. Hg, since it is probably small
0 in. Hg, since it is being disposed of
Skip evacuation since the unit is being scrapped

Question 20: Which two vacuum levels apply to Type II systems, depending on charge size?

10 in. Hg and 15 in. Hg
5 in. Hg and 10 in. Hg
15 in. Hg and 20 in. Hg
20 in. Hg and 25 in. Hg

Question 21: A hospital uses a large low-pressure chiller for its central air conditioning. What certification type covers this equipment?

Type II
Type I
No certification required
Type III

Question 22: Heat pumps, split systems, and rooftop units all share what pressure characteristic?

They operate above atmospheric pressure
They operate below atmospheric pressure
They have no measurable pressure
They operate at a perfect vacuum

Question 23: A light commercial refrigeration rack has a combined charge of 205 lbs across several cases. What evacuation level applies before major repair?

15 in. Hg, because the combined charge is 200 lbs or more
10 in. Hg, because each case is small
10 in. Hg, because it is refrigeration, not air conditioning
No evacuation is required for racks

Question 24: What happens to the required evacuation level as the refrigerant charge in a Type II system gets bigger?

It gets shallower
It stays the same
It is eliminated entirely
It gets deeper

Question 25: Which statement correctly compares Type II and Type III equipment pressure?

Type II runs above atmospheric pressure; Type III runs below it
Both always run above atmospheric pressure
Both always run below atmospheric pressure
Type II runs below atmospheric pressure; Type III runs above it

Study Tip: The EPA 608 exam is closed book. Memorize: recovery is required before opening any refrigerant system. Venting refrigerant is illegal. Know the ODP and GWP values for R-22, R-410A, R-134a, R-32, and R-454B.

EXAM CARD EPA 608

Questions25

Time limit25 min

Pass score70%

RegulationEPA Section 608

DifficultyIntermediate

Last reviewedJun 2026

Timer starts immediately. Progress is auto-saved.

Source: EPA Section 608 (40 CFR Part 82)