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DOL 8/14-8/15

Authored by Abraham Orozco

Other

11th Grade

Used 2+ times

DOL 8/14-8/15
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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do the global warming potentials of isobutane (R-600a), propane (R-290), and R-441A compare to the GWPs of HFC-134a, R-404A, and R-410A?

They are significantly higher.

They are significantly lower.

They are approximately equal.

They are just slightly higher.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What characteristic of HFC refrigerants make them damaging to the environment?

They are toxic to plants and animals at low doses.

They contain chlorine which damages the ozone layer.

They have a high Ozone Depletion Potential (ODP).

They can have very high global warming potentials.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the state of the refrigerant entering the compressor of a refrigeration system?

Low pressure liquid

Low pressure vapor

High pressure liquid

High pressure vapor

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an HFC refrigerant?

R-134a

R-115

R-22

R-11

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are some hydrofluoroolefin (HFO) refrigerants classified as “A2L”?

They have toxicity characteristics.

They are less flammable than hydrocarbon refrigerants, but most are still mildly flammable.

They are prohibited for use in the U.S.

They have high ozone depleting potentials and low global warming potentials.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of refrigerant is the most harmful to stratospheric ozone?

CFCs

HCFCs

HFCs

HFOs

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of EPA’s program that identifies refrigerants with lower overall risks to human health and the environment?

The Significant New Alternatives Policy (SNAP) Program

The GreenChill Program

The Approved ASHRAE List (AAL)

Energy Star

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