One ton of refrigeration - Study guides, Class notes & Summaries
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HVAC Exam Questions With Verified Solutions
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HVAC Exam Questions With Verified 
Solutions. 
Heat Transfer - answerMoves from one substance to another as well as between molecules of 
a substance, temperature is the driving force 
Temperature - answerThe level of heat or heat intensity, measured with thermometers 
Heat - answerIs the motion of molecules, and travels from a warm substance to a cold 
substance 
Conduction - answerEnergy travelling from one molecule to another, involves direct contact 
Radiation - answerPasses through air and ...
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BOMA-HVAC EXAM STUDY GUIDE
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laminar flow - Answer-- A streamline or viscous flow. 
- layers of water flowing over one another at different speeds with virtually no mixing between layers. 
- Fluid particles move in definite and observable paths or stream lines. 
- The flow is characteristic of viscous (thick) fluid or is one in which viscosity of the fluid plays a significant part. 
 
turbulent flow - Answer-Irregular movement of particles of the fluid. 
 
What do you use to determine quantity of air flowing through the duc...
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NCCER Module 5 Introduction to cooling Questions and Answers 100% Pass
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The Celsius scale is based on boiling water having a temperature at sea level of_? - 100° 
Subcooling occurs_. - After all vapor has changed to liquid 
When the temperature of a vapor is higher than its boiling point, the vapor is_? - Superheated 
When heat is carried from one object to another by means of a moving liquid or gas, it is being 
transferred by_? - Convection 
A ton of refrigeration is equal to_? - 12,000 BTUs per hour
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Mohawk Basic AC and Refrigeration Exam | 145 Questions with 100% Correct Answers | Verified | Latest Update 2024
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A ton of refrigeration or air conditioning capacity is equal to: - c. 12000 british thermal units in one 
hour 
If 14.7 lbs is the absolute pressure, what is the gauge pressure? - b. 0 PSIG 
R-12 boils at what temperature? - c. -21.7 Fahrenheit 
Suction lines are usually sized for: - c. 2 degrees temperature change 
A refrigerant gauge and testing manifold has: - d. 2 gauges, 2 valves, and 3 ports 
A fan motor runs at 1800 RPM under load. It has a 3 inch pulley and drives a fan equipped with a 9...
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FDNY written z51 questions and answers 2023.
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The efficiency of the refrigerant cycle is affected by the operation of the condenser. of the following. a more efficient centrifugal compressor operation results from: 
Lowering the condensing pressure 
 
 
 
The heat removed from the refrigerant in a condenser is: 
Sensible and latent heat 
 
 
 
The refrigerant unit that you have been assigned to is being taken out of service for a major repair. you have been assigned to withdraw refrigerant for storage in suitable containers. according to th...
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Q-01 FDNY Exam Questions With Correct Answers Latest 2023/2024 (Graded)
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Q-01 FDNY Exam Questions With Correct Answers Latest 2023/2024 (Graded) Rupture members, when used in parallel with a relief valve, are not to exceed _____% 
above designed working pressure - Correct Answer-20% 
Butterfly valve: where can it be used? - Correct Answer-Can be used on the inlet and 
outlet of a water pump 
What electrical motor protection device automatically resets itself? - Correct AnswerThe thermal protector 
746 watts equals how many kilowatt hours? - Correct Answer-.746 kilowa...
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RETA EXAM QUESTIONS AND ANSWERS (GRADED A)
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RETA EXAM QUESTIONS AND ANSWERS (GRADED A) 
 
RETA EXAM QUESTIONS AND ANSWERS (GRADED A) 
 
RETA EXAM QUESTIONS AND ANSWERS (GRADED A) 
 
RETA EXAM QUESTIONS AND ANSWERS (GRADED A) 
 
How are temperature and heat related? - ANSWER-Temperature is a measure of the intensity of the heat in an object 
 
The amount of heat required to change the temperature of one pound of water one-degree Farenheit defines - ANSWER-a BTU 
 
What is one ton of refrigeration equal to? - ANSWER-The rate of moving 288,0...
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HVACR- EXAM # 1 Questions and Answers 2024 ,2025 Fully Solved 100%
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A common rating that's used to specify the capacity of refrigeration equipment is the _______, which is 
equal to 12,000 BTU per hour - Ton 
A gas has a weight of 5 pounds and a volume of 100 cubic feet. What is the specific volume of this gas? - 
20 
A gauge pressure of 30 psig is equivalent to an absolute pressure of - 44.7 
According to Charles's law, if the temperature of a gas is increased, then the - volume would 
increase 
An electric motor that's rated at 5 horsepower can produce ____...
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Z-51 REFRIGERATION TEST QUESTIONS AND ANSWERS 2023
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Efficiency of the refrigerant cycle is affected by the operations of the condenser. Of the following, a more efficient centrifugal compressor operation results from: 
Lowering the condensing pressure 
 
 
 
The heat removed from the refrigerant in a condenser is: 
Sensible and latent heat 
 
 
 
The refrigerant unit that you have been assigned to is being taken out of service for a major repair. You have been assigned to withdraw refrigerant for storage in suitable containers. According to the N...
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FDNY written z51 questions| 222 questions and answers.
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The efficiency of the refrigerant cycle is affected by the operation of the condenser. of the following. a more efficient centrifugal compressor operation results from: 
Lowering the condensing pressure 
 
 
 
The heat removed from the refrigerant in a condenser is: 
Sensible and latent heat 
 
 
 
The refrigerant unit that you have been assigned to is being taken out of service for a major repair. you have been assigned to withdraw refrigerant for storage in suitable containers. according to th...
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