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Question:
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The hydrolysis rate for the Freon compounds as a group is _____ compared with other halogenated compounds.
low
Hot gas line mufflers dampens the pulsations thus reducing the noise and vibrations:
True
As the temperature of the substance being cooled falls, the evaporator refrigerant pressure will _____:
Falls down
Fluorocarbons decompose when exposed directly to high temperatures:
High molecular weight of the Freon compounds contributes to ____ specific heat values
Fluorocarbons decompose when exposed directly to ____ temperatures
High
If the discharge pressure goes up, the compression ratio will ______:
Go up
Charleās law is applicable to which of the following:
Gases alone
At condenser refrigerant changes from ______ to _______ :
high pressure vapor, high pressure liquid
The high molecular weight of the Freon compounds contributes to low latent heats of vaporization
Which of the following is not a desirable property for a good refrigerant:
Low latent heat value
For large hp motor, the number of starts are restricted to _____ per hour:
3 to 4
Vapor can be present in the liquid line, if there is _______ pressure drop in the liquid line:
Huge
The Ozone depletion potential (ODP) of R-22 is _____ of R-11 refrigerant:
5%
A dense _____ smoke forms when the ammonia comes in contact with the sulfur dioxide
White
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