Evaporator Study guides, Class notes & Summaries
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Z-51 Written Test Questions and Answers 100% Correct
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Z-51 Written Test Questions and 
 
Answers 100% Correct 
 
In a steam turbine, what is the function of a Kingsbury thrust bearing? 
 
A) Maintain first stage steam pressure. 
B) Compensate for coupling misalignment. 
C) Adjust shaft torque at start up. 
D) Maintain axial positioning of the rotor shaft. D) Maintain axial positioning of the rotor 
shaft. 
 
The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given 
temperature is 
 
A) partial pressure. 
B...
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NATE A/C Exam 1 Questions and Answers Already Passed
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Low airflow over a residential split system air conditioning evaporator can cause 
A: Liquid flood-back to the compressor 
B: A decrease in compression ratio 
C: An increase in suction line superheat 
D: Oil logging in the evaporator A: Liquid flood-back to the compressor 
Which of the following is the correct sequence of work?
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EPA 608 Certification Core Questions and Answers 100% Verified
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EPA 608 Certification Core Questions and Answers 100% Verified 
Halons were completely phased out by ______: 
1994 
1995 
1987 
2000 - Correct Answer 1994 
 
Recovered refrigerant is stored in which of the following painted tank: 
 
Gray with yellow top 
Yellow with gray top 
Yellow with blue top 
Blue with yellow top - Correct Answer Gray with yellow top 
 
If your recovery unit does not have a sub-cooling feature recovery rate will be _____ : 
Recovery rate is independent 
Slower 
Faster - Cor...
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BECC Mod 7 Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
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the delaval lube oil purifier makes what kind of force centrifugal 
what is important about the top disk in the delaval purifier largest disk, has no ribs, holes 
or flanges 
What holds the clamp, forming a seal between the cover and the frame by 
compressing the O-ring cover clamp 
what controls the amount of refrigerant flowing to the evaporator TXV 
how is torque measured foot and inch pounds 
what removes latent heat of condensation condenses refrigerant vapor and subcools liquid 
refrigeran...
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Z-51 Written Test Questions And Answers
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Z-51 Written Test Questions And Answers 
 
In a steam turbine, what is the function of a Kingsbury thrust bearing? 
 
A) Maintain first stage steam pressure. 
B) Compensate for coupling misalignment. 
C) Adjust shaft torque at start up. 
D) Maintain axial positioning of the rotor shaft. - ANS D) Maintain axial positioning of the rotor shaft. 
 
The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given temperature is 
 
A) partial pressure. 
B) relativ...
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EPA 608 Study Material Including (Core, Type 1, 2 And 3) Questions And Answers 2023
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a vacum pump should be connected - Correct answer-as far away from the pump as 
possible 
a high capacity vacuum pump and short, large diameter hoses will - Correct answerdramatically reduce emissions, pressure drop, and evacuation/dehydration time 
ozone contains three - Correct answer-oxygen atoms 
one chlorine atom can destroy - Correct answer-100,000 ozone molecules 
CFC's do not dissolve in water and do not breakdown into other compounds that 
dissolve in water - Correct answer-CFC's cann...
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ABSA: 4th Class Part B - Comprehensive Exam 2 (150 Multiple Choice, 4th Class Part B , Units 1-12) Questions And Answers Verified 100% Correct!!
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ABSA: 4th Class Part B - Comprehensive Exam 2 (150 Multiple Choice, 4th Class Part B , Units 1-12) Questions And Answers Verified 100% Correct!! 
What must be located outside a Class T machinery room? 
Select one: 
 
a. Spare flashlights 
b. Disposable coveralls 
c. Machinery shut off switch 
d. Light switches 
c 
 
 
Degradation of heat transfer fluid of a hot oil system will begin to occur if: 
Select one: 
 
a. The oil filter is not serviced regularly 
b. The oil temperature is above a specif...
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Local 94 School - 475 terms to know for the RMO written exam with Answers
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Local 94 School - 475 terms to know for the RMO written exam with Answers 
 
How do automatic expansion valves work? - ANS Evaporator pressure closes the valve and spring pressure opens the valve. 
 
When will a faulty check valve cause the most damage? - ANS On startup. 
 
What will happen if a TEV'S sensing bulb insulation wears off of the suction line in an 85 F Degree room? - ANS You will flood the evaporator. 
 
What can a clogged pump strainer cause? - ANS A reduction or loss in ...
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HVAC (EPA Certification Exam Section 608) questions with correct answers
- Exam (elaborations) • 17 pages • 2023
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How many types of HVAC certifications are there? - Answer There are 4 types. 
 
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 the outlet of the evaporator the refrige...
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Q-01 FDNY(2024 Latest Update)Correct Questions & Answers!!!
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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 the liquid line service valve normally in? - ANSWER Back-seated 
 
In ...
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