What does condenser do - Study guides, Class notes & Summaries
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Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6
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Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 
 
Exams 
 
 
 
1. What are the two major types of nucleic acids and their roles? 
 
 
DNA- deoxyribonucleic acid RNA- Ribonucleic acid 
DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. 
RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins 
 
 
 
 
 
 
 
 
 
 
 
 
Tru...
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EPA 608 Universal Exam With 100% Correct Answers 2023
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Refrigeration technicians who violate the Clean Air Act can: - - Correct answer-Lose 
their EPA certification, be fined, be required to appear in Federal court. 
After 1995, any supplies of CFC refrigerants to service existing units in the USA can 
only come from: - - Correct answer-recovery and recycling. 
Refrigerant that is recovered can be returned to: - - Correct answer-the same system or 
other systems owned by the same person without restriction. 
Refrigerant can not be called "reclaimed...
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HVAC (EPA Certification Exam Section 608) Questions and Answers 100% Pass
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HVAC (EPA Certification Exam Section 608) 
Questions and Answers 100% Pass 
How many types of HVAC certifications are there? - Correct Answer ️️ -There are 4 
types. 
What does a metering device do? - Correct Answer ️️ -The metering device causes a 
reduction in pressure, and therefore a reduction in saturation temperature. 
What is absorbed in the evaporator? - Correct Answer ️️ -Heat is absorbed in the 
evaporator. 
What happens in the evaporator? - Correct Answer ️️ -Heat is a...
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HVAC: EPA 608 Certification Study Guide with 100% Complete Solutions
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HVAC: EPA 608 Certification Study 
Guide with 100% Complete Solutions 
Are there drop-in replacements for R-12 systems? Why or why not? - Correct Answer ️️ 
-No because the new refrigerants are incompatible with the oils and lubricants used 
in R-12 systems. 
What type of oil is used in R-134a and what oils will it mix with? - Correct Answer ️️ - 
Ester based oils and they do not mix with other oils 
What type of lubricant is used with HCFCs? - Correct Answer ️️ -Alkylbenzene 
lubric...
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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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SOS Mechanic Certification- HVAC questions and answers
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What should be used when installing o rings 
Refrigerant oil not the right answer 
 
 
 
which of the following is true about thermostat 
all the above 
 
 
 
moisture contamination inside the air conditioning system can cause 
all the above 
 
 
 
when charging r12 to r134 the performance of which component must increase the most 
condenser 
 
 
 
a overcharged air conditioning system is indicated by 
above normal gauge readings 
 
 
 
the high side reading is too high what should you do to cor...
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HVAC BOMA 501 Study Guide Latest Update Graded A+
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HVAC BOMA 501 Study Guide Latest 
 
Update Graded A+ 
 
Dual Duct System A system in which hot air and cold air are supplied by separate ducts and 
mixed at each controlled space to provide the desired supply air temperature. This method 
consumes a great deal of energy. 
 
Muiltizone System an a/c system in which the zone control is obtained by mixing hot and 
cold air at the unit in response to a room thermostat 
 
Load Calulations take the sensible heat and the latent heat into consideration ...
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SOS Mechanic Certification- HVAC with 100% correct answers (latest update)
- Exam (elaborations) • 14 pages • 2024
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What should be used when installing o rings 
Refrigerant oil not the right answer 
 
 
 
which of the following is true about thermostat 
all the above 
 
 
 
moisture contamination inside the air conditioning system can cause 
all the above 
 
 
 
a vehicle has low heater output which of the following would not cause this output 
restricted of leaves not the right answer 
 
 
 
when charging r12 to r134 the performance of which component must increase the most 
condenser 
 
 
 
a overcharged ai...
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Refrigeration license review Exam Questions With Verified And Updated Solutions.
- Exam (elaborations) • 20 pages • 2024
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Refrigeration license review Exam 
Questions With Verified And Updated 
Solutions. 
At the condenser refrigerant enters as - answerhigh pressure gas and leaves as high pressure 
liquid 
If you were running three compressors, - answerhighly superheated vapor describes the state 
of the refrigerant leaving the third compressor 
the state of refrigerant as it leaves the compressor is (blank) and as it leaves the condenser is 
(blank) - answercompressor-super heated vapor 
condenser- warm sub-cooled...
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EPA Type 2 Questions and Answers Already Graded A
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EPA Type 2 Questions and Answers Already Graded A 
Heat pumps that have been retrofitted from R22 to R407C should be leak checked with: pressurized nitrogen 
When a new system has been assembled, the first thing to do is: pressurize the system with inert gas and leak check 
EPA regulations require that leaking commercial or industrial process refrigeration equipment must be repaired when the leak rate exceeds______ of the charge per year. 35% 
Prior to replacing the condenser coil in a high pres...
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