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Pretest 608 1and3

Authored by Jay Brooke

Physics

12th Grade

36 Questions

NGSS covered

Used 3+ times

Pretest 608 1and3
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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the new maximum allowable annual leak rate for a comfort cooling system that contains 50 pounds or more of R-410A starting in 2019?

5%

10%

15%

20%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When recovering refrigerant from a medium-pressure system with more than 200 lbs. of refrigerant, to what level should you recover?

10"hg

15"hg

20"hg

25"hg

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to a refrigerant when it is heated above the saturation temperature?

It condenses into a liquid

It remains in a vapor state

It freezes into a solid

It decomposes chemically

Tags

NGSS.HS-PS3-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color is the top of a Type II recovery cylinder?

Blue

Yellow

Red

Green

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the maximum fill level for a recovery cylinder?

50%

60%

80%

100%

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How often must a reusable container used for refrigerant that is under high pressure be hydrostatically tested?

Every 3 years

Every 5 years

Every 10 years

Every 12 years

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of refrigerant is R-134a classified as?

HFC (Hydrofluorocarbon)

CFC (Chlorofluorocarbon)

HCFC (Hydrochlorofluorocarbon)

HC (Hydrocarbon)

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