EPA 608 Core · Refrigeration Fundamentals · Medium
What is the state of refrigerant entering the compressor?
Answer: D. Low-pressure vapor.
- AHigh-pressure vapor.
- BLow-pressure liquid.
- CHigh-pressure liquid.
- DLow-pressure vapor.✓ Correct
Why D is right
The compressor's job is to take low-pressure vapor and compress it to high pressure.
More Core questions
- What is the state of refrigerant leaving the condenser?
- What component changes a high-pressure liquid to a low-pressure liquid?
- What does the 'R' in refrigerant designations (e.g., R-22) stand for?
- What type of refrigerant is R-134a?
- What type of refrigerant is R-1234yf?
Go deeper with the study guide EPA 608 Core Exam: Study Guide for 2026, try the free 10-question test or browse all EPA 608 practice questions.
A practice question written for study, checked against 40 CFR Part 82, Subpart F. It is not an official EPA exam question, and this site is not affiliated with the U.S. EPA.