Type 3 Flashcard

Type 3 Flashcard

Assessment

Flashcard

Other

Professional Development

Practice Problem

Hard

Created by

Wayground Content

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46 questions

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1.

FLASHCARD QUESTION

Front

A technician servicing low-pressure appliances must be certified under

Back

Type III cert. Of section 608

2.

FLASHCARD QUESTION

Front

When recharging a low-pressure system, you should allow enough ____________ to enter the system until the refrigerant saturation temperature increases to _______ degrees before introducing liquid refrigerant.

Back

vapor / 32

3.

FLASHCARD QUESTION

Front

EPA regulations require that all chillers containing 50 or more pounds of ozone-depleting refrigerant that are used for comfort cooling be repaired when the leak rate exceeds___________percent of the charge per year.

Back

10

4.

FLASHCARD QUESTION

Front

Charging liquid R-245f refrigerant into a low-pressure refrigeration system under ___ mercury vacuum can cause the system water to freeze.

Back

18"

5.

FLASHCARD QUESTION

Front

The leak rate threshold for comfort cooling appliances with a full charge of 50 pounds or more of HCFC refrigerant is _________%.

Back

10

6.

FLASHCARD QUESTION

Front

The purpose of a hydrostatic tube test is to:

Back

determine if a tube is leaking

7.

FLASHCARD QUESTION

Front

In low pressure chillers, the most frequent route of moisture entry is: air leak from gasketed areas or fittings, around compressor sweat fittings, above the condenser inlet, either a or b

Back

air leak from gasketed areas or fittings

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