In a refrigeration system Study guides, Class notes & Summaries
Looking for the best study guides, study notes and summaries about In a refrigeration system? On this page you'll find 2110 study documents about In a refrigeration system.
Page 2 out of 2.110 results
Sort by
-
FDNY Z51 RMO Questions and Answers 100%Verified Graded A+ already passed!!
- Exam (elaborations) • 9 pages • 2024
-
- $11.49
- 1x sold
- + learn more
FDNY Z51 RMO Questions and Answers 100%Verified Graded A+ already passed!! 
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 - correct 
answer lowering the condenser pressure 
In most semi hermetic compressors, the suction vapor is used for - correct answer cools 
the motor 
The amount of refrigerant that flows through the orifices of an economizer is determined 
by the - corre...
-
EPA 608 Type 3 Questions and Answers Already Passed
- Exam (elaborations) • 18 pages • 2023
- Available in package deal
-
- $9.49
- 2x sold
- + learn more
EPA 608 Type 3 Questions and Answers Already Passed On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings 
The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig 
Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ... 
A hydrostatic tube test kit is used to: determine if a tube leaks 
Commercial and industrial process refrigeration systems must be rep...
-
EPA 608 Type 2 Test Questions With Answers
- Exam (elaborations) • 9 pages • 2023
-
- $10.99
- 2x sold
- + learn more
EPA 608 Type 2 Test Questions With Answers 
 
Technicians maintaining, servicing, repairing or disposing of high pressure or very high-pressure appliances, except small appliances and MVAC, must be certified either as a Universal Technician or a ______ ___. - CORRECT ANSWER Type 2 
 
After the installation of any type of system, the unit should be pressurized with _____ and _____ checked. - CORRECT ANSWER nitrogen leak 
 
Nitrogen is an ______ gas. - CORRECT ANSWER...
-
ESCO Light Commercial Refrigeration EXAM with Complete Solutions
- Exam (elaborations) • 8 pages • 2024
- Available in package deal
-
- $12.49
- 1x sold
- + learn more
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...
-
EPA 608 Type II Test Questions and Answers (2024 / 2025) (Verified Answers)PDF
- Exam (elaborations) • 18 pages • 2024
- Available in package deal
-
- $13.99
- 1x sold
- + learn more
1.	Before charging a new system with refrigerant, what should be done 
Answer:?: Pres- surize with nitrogen (classified as an inert gas) and leak 
 
2.	Which refrigerant can be used for leak detection as a trace gas and pres- surized 
with nitrogen 
 Answer:?: R-22 
 
3.	What tools can you use to find general area of leaks and pinpoint leaks? 
a.	Soap bubbles. 
b.	Look for oil residue 
c.	Electronic or ultrasonic leak detector will provide the general area of the leak 
d.	Refrigerant dye 
Answer...
Want to regain your expenses?
-
ODP test Questions and Answers 2023
- Exam (elaborations) • 4 pages • 2023
- Available in package deal
-
- $19.49
- 2x sold
- + learn more
ODP test Questions and Answers 2023 
Chlorofluorocarbon (CFC) refrigerants consist of: 
Chlorine, Fluorine, Carbon 
 
 
 
What causes a CFC molecule to break down once it reaches the upper atmosphere? 
Ultraviolet light 
 
 
 
The Ozone layer: 
Reduces ultraviolet radiation. 
 
 
 
Hydrochlorofluorocarbon (HCFC) refrigerants consists of: 
Hydrogen, Chlorine, Fluorine, Carbon. 
 
 
 
Which of the following refrigerants causes the least amount of damage to the ozone layer? 
R-134a 
 
 
 
Are there...
-
S-12 CITYWIDE SPRINKLER SYSTEMS, S12 sprinkler test Spring 2023 (100% Verified Answers)
- Exam (elaborations) • 25 pages • 2023
- Available in package deal
-
- $15.49
- 1x sold
- + learn more
S-12 CITYWIDE SPRINKLER SYSTEMS, S12 sprinkler test Spring 2023 
S-12 CITYWIDE SPRINKLER SYSTEMS, 
S12 sprinkler test Spring 2023 
THE __________ IS RESPONSIBLE TO MAINTAIN SPRINKLER SYS. AND 
TO DETERMINE QUALIFICATIONS. 
OWNER 
RECORDS OF ALL INSPECTIONS AND MX SHALL BE MAINTAINED ON 
PREMISES FOR A MIN. OF __________ YEARS. 
3 
THE BUILDING OWNER SHALL ASSIGN A(N) ____________ TO COMPLY 
WITH REQUIREMENTS. 
IMPAIRMENT COORDINATOR 
REGULAR MX AND MINOR REPAIRS NOT AFFECTING MORE THAN 
___...
-
NATE AC Service Certification Questions and Answers 2023
- Exam (elaborations) • 24 pages • 2024
-
- $9.49
- 1x sold
- + learn more
A system is supplied from the factory with charge of 5 pounds 10 ounces for a 15 foot line set. The 
line set is 25 feet long. The manufacturer's instruction sheet specifies 0.6 ounces of refrigeration to be 
added for each added foot of refrigerant line set length. What is the total refrigerant charge for the 
system? 
A. 6 ounces 
B. 5 pounds 
C. 5 pounds 10 ounces 
D. 6 pounds - D. 6 pounds 
15ft - 25ft = 10ft x .6 = 6 ounces 
5 pounds + 10 ounces + 6 ounces 
5 pounds + 16 ounces = 6 pou...
-
EPA 608 (TYPE II) Exam COMPLETE SOLUTION ( A+ GRADED 100% VERIFIED)
- Exam (elaborations) • 13 pages • 2023
- Available in package deal
-
- $7.99
- 1x sold
- + learn more
EPA 608 (TYPE II) Exam COMPLETE SOLUTION ( A+ GRADED 100% VERIFIED) 
When a new system has been assembled, the first thing to do is? - ANS Pressurize the system with an inert gas & leak check. 
 
After installation of a field-piped R-410A split heat pulp, the unit should first be? - ANS Pressurized with nitrogen then leak checked. 
 
The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) mus...
-
(Answered) EPA SECTION 608 CORE (2021-2022 revision)
- Exam (elaborations) • 20 pages • 2022
- Available in package deal
-
- $9.99
- 2x sold
- + learn more
EPA SECTION 608 CORE (2021-2022 revision) 
A disposable cylinder should be reduced to what pressure before scrapping? 
a. 0 psig 
b. 20 psig 
c. 50 psig 
d. 80 psig 
 
A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? 
a. Add R-22 after the repair is complete. 
b. Retrofit the unit to R-407C. 
c. Use recovered or recycled R-22 from the same 
owner. 
d. Top off the unit with R-410a. 
A refillable cylinder must not be filled above what ...
How much did you already spend on Stuvia? Imagine there are plenty more of you out there paying for study notes, but this time YOU are the seller. Ka-ching! Discover all about earning on Stuvia