Evaporator Study guides, Class notes & Summaries
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ESCO Light Commercial Refrigeration EXAM with Complete Solutions
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ESCO Light Commercial Refrigeration EXAM 
with Complete Solutions 
In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end 
of the coil as possible in order to: ️️ 
The difference between the temperature of the refrigerant boiling in the evaporator and the 
temperature at theevaporator outlet is known as: ️️ 
An expansion device that is stuck open will cause: ️️ 
When measuring evaporator superheat on a commercial system that has a long su...
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FSC 325 Exam #3 (With 100% accurate answers)
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T or F: Falling film evaporators are the only type of evaporator that are used in the food industry due to their sanitary design correct answers False 
 
T or F: Specific heat refers to the amount of energy needed to raise the temperature of 1 kg food by 1 oF. correct answers False 
 
T or F: High intensity pulsed electric field (HIPEF) acts to inactivate microorganisms by creating pores in the cell membrane correct answers True 
 
T or F: The cold spot of a container filled with peas in brine w...
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ESCO Light Commercial Refrigeration EXAM 2024/2025 with Complete Solutions.
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ESCO Light Commercial Refrigeration EXAM 2024/2025 with Complete Solutions. 
In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the 
coil as possible in order to: 
A. operate at high efficiency. 
B. ensure that frost does not accumulate. 
C. sub-cool the compressor. 
D. ensure proper oil return. - Answer - A. operate at high efficiency. 
The difference between the temperature of the refrigerant boiling in the evaporator and the 
temperature at t...
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HVAC (EPA Certification Exam Section 608) Questions With Verified Solutions | ALREADY PASSED | LATEST REVISED UPDATE
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HVAC (EPA Certification Exam 
Section 608) Questions With 
Verified Solutions | ALREADY 
PASSED | LATEST REVISED 
UPDATE 
What does a metering device do? - ANSWER The metering 
device causes a reduction in pressure, and therefore a reduction 
in saturation temperature. 
What is absorbed in the evaporator? - ANSWER Heat is 
absorbed in the evaporator. 
What happens in the evaporator? - ANSWER Heat is absorbed 
in the evaporator and causes the refrigerant to boil from liquid to 
vapor. 
At...
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BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS
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BOMA – HVAC QUESTIONS AND 
 
ANSWERS 100% PASS 
 
Two basic categories of chillers are the 
compression cycle and absorption 
The five requirements for comfort are proper temperature, humidity, filtration, and ventilation 
circulation 
The primary function of an expansion device is to 
produce a reduction in the pressure on the liquid refrigerant, regulate the flow of refrigerant into 
the evaporator, lower the boiling point of the refrigerant far enough below the temperature of the 
load to g...
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Q-01 FDNY Exam With 100% Correct Answers
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Q-01 FDNY Exam With 100% Correct 
Answers 
Rupture members, when used in parallel with a relief valve, are not to exceed _____% above 
designed working pressure - answer20% 
Butterfly valve: where can it be used? - answerCan be used on the inlet and outlet of a water 
pump 
What electrical motor protection device automatically resets itself? - answerThe thermal 
protector 
746 watts equals how many kilowatt hours? - answer.746 kilowatt hours 
What position is the liquid line service valve normal...
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Q-01 FDNY Questions And Revised Correct Answers PASSED!!
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Q-01 FDNY Questions And Revised 
Correct Answers 
PASSED!! 
Rupture members, when used in parallel with a relief valve, are 
not to exceed _____% above designed working pressure - 
ANSWER : 20% 
Butterfly valve: where can it be used? - ANSWER : Can be used 
on the inlet and outlet of a water pump 
What electrical motor protection device automatically resets 
itself? - ANSWER : The thermal protector 
746 watts equals how many kilowatt hours? - ANSWER : .746 
kilowatt hours 
What position is...
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Q-01 FDNY COMPLETE ACTUAL EXAM / 200+ WELL STRUCTURED QUESTIONS AND CORRECT ANSWERS 2023/2024 LATEST VERSION.
- Exam (elaborations) • 48 pages • 2023
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Q-01 FDNY COMPLETE ACTUAL EXAM / 
200+ WELL STRUCTURED QUESTIONS AND 
CORRECT ANSWERS 2023/2024 LATEST 
VERSION. 
2 / 24 
1. Rupture members,when used in parallel with a relief valve,are not to exceed 
% above designed working pressure: 20% 
2. Butterfly valve: where can it be used?: Can be used on the inlet and outlet ofa water pump 
3. What electrical motor protection device automatically resets itself?: Thethermal protector 
4. 746 watts equals how many kilowatt hours?: .746 kilowatt hours 
5...
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2024 update DC Third testing Questions and Answers 100% Pass
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2024 update DC Third testing Questions and 
Answers 100% Pass 
The component in which liquid vapor by absorbing heat is called? - Correct Answer ️️ - 
Evaporator 
Select the best answer electrical grounding method? - Correct Answer ️️ -Metal stake 
drive 8 foot into the ground. 
A _____ valve should be used for throttling purpose? - Correct Answer ️️ -Globe 
What is the acceptable range for residual sodium sulfite in the boiler maintain? - Correct 
Answer ️️ -30-70 
What is the B...
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BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS LATEST UPDATE 2024
- Exam (elaborations) • 26 pages • 2024
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BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS LATEST UPDATE 2024 
 
Two basic categories of chillers are the ___. 
a. Compression cycle and absorption 
b. purge and absorption 
c. absorption and lithium bromide 
d. purge and lithium bromide - 
Correct Answer a. Compression cycle and absorption 
 
The five requirements for comfort are proper temperature, humidity, filtration, _____, and ventilation. 
 
a. circulation 
b. velocity 
c. . 
d. none of the above - 
Correct Answer a. circulation 
 
T...
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Michigan Mechanic Certification- HVAC Latest Update Graded A+
- Exam (elaborations) • 7 pages • 2024
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Michigan Mechanic Certification- HVAC 
 
Latest Update Graded A+ 
 
Cooling system leak diagnosis Pressure test or dye test 
 
Purpose of a radiator The purpose of the radiator is to dissipate heat that is picked up by 
coolant in the engine into the air passing through its fins and tubes 
 
Symptoms of low coolant Engine overheating and no heat from the HVAC system 
 
Purpose of the thermostat The purpose of the thermostat is to trap the coolant in the engine 
until it reaches it operating temp...
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