Practice test

Louisiana HVAC Practice 4

Practice 4 for HVAC Exam learners in Louisiana: 25 questions, explained answers, and a review routine.

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Question 1

1

Which federal regulation requires HVAC technicians to be certified before purchasing or handling refrigerants with a global warming potential above 150?

Question 2

2

What color is the standard low-pressure side (suction) hose on a refrigerant manifold gauge set?

Question 3

3

Which refrigerant is classified as an HFC and has zero ozone depletion potential (ODP)?

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