- Study guides, Class notes & Summaries

Relative humidity - The ratio of the current partial pressure of the water vapor in the atmosphere to the saturation pressure of the water vapor at the current DB depression is called: indication of moisture content in air - Wet bulb temperature is Dry bulb temperature - The equilibrium temperature in an ordinary thermometer measured if exposed to atmosphere: Dew point temperature - The air temperature at which water vapour in the air starts condensing is known as Dew point temperatu...

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8 pages

Written in 2023/2024

Grade A+

STANFORDGRADESS

what is not identified in the manual as a concern with field coupled hoses - answer-length of hose on effect of some refrigerant gases in the atmosphere is that they - answer-contribute to trapping heat when should recycling equipment filters be changed - answer-according to equipment manufactures specifications select the statement that best describes the chemical and operating characteristics of HFO1234yf - answer-HFO1234yf is similar to, but not the same as,HFC134a why must recycl...

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3 pages

Written in 2023/2024

Grade A+

BRAINSCAPE1

What is the movement of heat through space called? - answer-Radiation A refrigerant release heat when - answer-It condenses Why is it desirable for refrigerant in the suction line to be slightly superheated? - answer-To insure liquid refrigerant does not enter the compressor A 30 pound cylinder of reclaimed R-22 refrigerant has been stored over night at 70 degrees F. What should be the approximate pressure in the cylinder? - answer-121 psig 14.7 psia( pouds per square inch absolute) ...

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11 pages

Written in 2023/2024

Grade A+

BRAINSCAPE1

What is the movement of heat through space called? - answer-Radiation A refrigerant release heat when - answer-It condenses Why is it desirable for refrigerant in the suction line to be slightly superheated? - answer-To insure liquid refrigerant does not enter the compressor A 30 pound cylinder of reclaimed R-22 refrigerant has been stored over night at 70 degrees F. What should be the approximate pressure in the cylinder? - answer-121 psig 14.7 psia( pouds per square inch absolute) ...

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11 pages

Written in 2023/2024

Grade A+

BRAINSCAPE1

The British Thermal Unit (Btu) - answer-The standard unit for measuring the quantity of heat in a substance is.... Pressure which cannot be further reduced - answer-Zero psia (pounds per square inch absolute) is.... Store liquid refrigerant - answer-A liquid receiver is used to.... Low suction pressure and low discharge pressure - answer-A low refrigerant charge in an air conditioning system will cause these symptoms... High suction pressure and higher than normal discharge pressure ...

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7 pages

Written in 2023/2024

Grade A+

BRAINSCAPE1

sensible heat - answer-Heat that causes change in temperature of a substance latent heat - answer-Heat that is added with out a rise in temperature super heat - answer-Heat added to refrigerant in vapor state after evaporation process is involute spirals - answer-Scroll compressor moves refrigerant by means of convection - answer-movement of heat by way of fluid or air conduction - answer-movement of heat by way of solid BTU - answer-Standard unit for measuring heat Condenso...

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13 pages

Written in 2023/2024

Grade A+

BRAINSCAPE1

Air Conditioning Certification EXAMS BUNDLE| Questions with Complete Solutions |Latest Update Questions 2024-2025

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6 items

QUINTER

what is not identified in the manual as a concern with field coupled hoses - ANSWER length of hose on effect of some refrigerant gases in the atmosphere is that they - ANSWER contribute to trapping heat when should recycling equipment filters be changed - ANSWER according to equipment manufactures specifications

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3 pages

Written in 2023/2024

Grade A+

QUINTER

Heat which causes a change in temperature of a substance is called; - ANSWER sensible heat. Heat which causes a change in state of a material without a change in temperature is called; - ANSWER latent heat. Heat which is added to a vapor after the change of state occurs is called; - ANSWER superheat. Heat can travel by; - ANSWER conduction, convection, radiation. The movement of heat by way of fluid (or air) is called; - ANSWER convection . The movement of heat by direct contact is called;...

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13 pages

Written in 2023/2024

Grade A+

QUINTER

sensible heat - ANSWER Heat that causes change in temperature of a substance latent heat - ANSWER Heat that is added with out a rise in temperature super heat - ANSWER Heat added to refrigerant in vapor state after evaporation process is involute spirals - ANSWER Scroll compressor moves refrigerant by means of convection - ANSWER movement of heat by way of fluid or air

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10 pages

Written in 2023/2024

Grade A+

QUINTER

A faulty condenser fan motor on an air conditioning system will cause these symptoms..... - ANSWER High suction pressure and high discharge pressure When connecting copper to steel the recommended brazing filler alloy is a... - ANSWER 45 percent silver alloy A partially iced over evaporator can be caused by... - ANSWER An undercharge Heat added to the refrigerant in vapor state after the evaporation process is called.... - ANSWER Superheat

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5 pages

Written in 2023/2024

Grade A+

QUINTER

R-134a vapor enters the condenser at 124 psig. 100F. It leaves as a liquid from the condenser sub-cooled 20F. and the pressure will be approximately - ANSWER 124 psi A scroll compressor moves refrigerant by means of - ANSWER involute spirals A TXV sensing bulb that is loose from the suction line will cause - ANSWER High suction pressure and higher than normal discharge pressure If 10 pounds of refrigerant passing through a water cooled condenser rejects 20 BTUs of heat per pound, then 10 p...

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11 pages

Written in 2023/2024

Grade A+

QUINTER

A technician has found an air conditioning system with a leak in the liquid line. After the line is repaired, the system is evacuated and properly retired. When the system is started, the compressor is noisy and running hot. The most probable cause of the noise is.... - ANSWER Lower oil in the system The standard unit for measuring the quantity of heat in a substance is.... - ANSWER The British Thermal Unit (Btu) Zero psia (pounds per square inch absolute) is.... - ANSWER Pressure which ca...

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6 pages

Written in 2023/2024

Grade A+

QUINTER

The British Thermal Unit (Btu) - ANSWER The standard unit for measuring the quantity of heat in a substance is.... Pressure which cannot be further reduced - ANSWER Zero psia (pounds per square inch absolute) is.... Store liquid refrigerant - ANSWER A liquid receiver is used to.... Low suction pressure and low discharge pressure - ANSWER A low refrigerant charge in an air conditioning system will cause these symptoms..

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6 pages

Written in 2023/2024

Grade A+

QUINTER

What is the movement of heat through space called? - ANSWER Radiation A refrigerant release heat when - ANSWER It condenses Why is it desirable for refrigerant in the suction line to be slightly superheated? - ANSWER To insure liquid refrigerant does not enter the compressor A 30 pound cylinder of reclaimed R-22 refrigerant has been stored over night at 70 degrees F. What should be the approximate pressure in the cylinder? - ANSWER 121 psig

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9 pages

Written in 2023/2024

Grade A+

QUINTER

ESCO Air Conditioning Exam Questions And Answers Heat which causes a change in temperature of a substance is called - ans-Sensible heat

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4 items

Ascorers

ESCO Air Conditioning Exam Questions And Answers Heat which causes a change in temperature of a substance is called - ans-Sensible heat

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10 pages

Written in 2023/2024

Grade A+

Ascorers

Air Conditioning Certification Exam (Exam Code A-02) Heat which causes a change in temperature of a substance is called; - ans-sensible heat.

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13 pages

Written in 2023/2024

Grade A+

Ascorers

Air Conditioning Certification Exam Part 1 Questions And Answers A technician has found an air conditioning system with a leak in the liquid line. After the line is repaired, the system is evacuated and properly retired. When the system is started, the compressor is noisy and running hot. The most probable cause of the noise is.... - ans-Lower oil in the system

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6 pages

Written in 2023/2024

Grade A+

Ascorers

A customer calls with an insufficient cooling compliant. upon arrival to the service call it is found that the outdoor condensing unit is operating, but the indoor blower motor is not in operation. Technician A says that it is possible that it is bad fuse to the furnace Technician B says the control transformer could also be at fault Who is correct? - ANSWER Neither is correct What is commonly used to measure a deep vacuum? - ANSWER a micron gauge The system used to measure the effi...

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5 pages

Written in 2023/2024

Grade A+

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