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Modern Refrigeration and Air Conditioning, 21st Edition by Althouse - Chapters 1-55
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Modern Refrigeration and Air Conditioning, 21st Edition by Althouse - Chapters 1-55
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Modern Refrigeration and Air Conditioning, 21st Edition by Althouse - Chapters 1-55
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Test Bank: Modern Refrigeration and Air Conditioning,21st Edition by Althouse - Chapters 1-55,
9781635638776 | Rationals Included
A 50 hp motor is equal to how many watts - ANSWER: 37300
How many BTU per hour is a five-ton air conditioner rated to absorbs? - ANSWER: 60006
Which of the following causes a change to temperature of a substance? - ANSWER: sensible heat
The amount of heat in BTU to raise 10 pound of water from 40 degrees to 41 degrees is - ANSWER: 1
A manometer measure low pressure in air ducts using - ANSWER: inches of water
A compound gauge measures what - ANSWER: pressure above and below atmosphere
A change in the type of refrigerant in a system shall not be move
1 without the permission of the local jurisdiction or 2. without evaluation of suitabitive or
both/neither - ANSWER: both
How many types of EPA Certification? - ANSWER: 4
HVAC and refrigeration equipment nameplate shall include the manufacture name or trademark serial
number and what? - ANSWER: seal or mark of testing agency
The exhaust valve of reciprocating compressor
1. operate at a higher temperature than intake or 2. is larger than the intake valve - ANSWER: 1.
operate at a higher temperature than intake
The safety device that prevents liquid refrigerant from flowing into the compressor is the - ANSWER:
accumulator
A six hp compressor using ammonia as a refrigerant shall be at least ____feet
from______hour fire rated construction - ANSWER: 15,1.5
A positive displacement compressor shall have stop valves installed
1.each inlet or 2. each outlet - ANSWER: Both inlet & outlet
What type compressor is shown in figure 2.1 - ANSWER: harmetic
A double- indirect open spray refrigeration system is classified as what type of system? - ANSWER:
low probability
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