A full nitrogen cylinder - Study guides, Class notes & Summaries
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Boilermaker NCCR Test Questions And Answers
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Boilermaker NCCR Test Questions And Answers 
Boilermaker NCCR Test 
 
 
 
 
 
1 ft 3-3/4 in + 2 ft 1-1/16 in +5 ft 10- 7/8 in = - ANS 9 ft 3-11/16 in 
 
A 1-inch plate is to be cut. Why should an acetylene gerulator on a cutting rig not be adjusted over 15 PSI? - ANS Acetylene is unstable above this pressure 
 
A big control valve is pulled who is responsible for the rigging? - ANS Crane operator and rigger 
 
A boiler maker must have all of the following wh...
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Texas Wastewater Class A Exam Questions and Answers with Complete Solutions Graded A 2024
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Seeding of BOD samples is necessary when samples - (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes 
 
When is blue-green algae the most dominant on a pond treatment system? - Summer 
 
A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 =...
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ODP test Questions and Answers 2023
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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...
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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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Refrigerant 410A Certification Questions and Answers Already Passed
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Refrigerant 410A Certification Questions 
 
and Answers Already Passed 
 
A full nitrogen cylinder has a pressure approx: 2500 psig 
 
A leak detector capable of sensing _____ is needed when working with R-410a. HFC 
 
A system using r-410a refrigerant has bubbles in the sight glass. Technician A says that the 
system must be low on refrigerant. Technician B says that the bubbles could be caused by the 
blended refrigerant flashing in the increasing volume of the sight glass. Who is correct? 
Te...
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Texas Wastewater Class A Exam 200 Questions with Correct Answers Verified Latest Update 2024
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Seeding of BOD samples is necessary when samples - (All of the above) have a 
chlorine residual, have a previously been chlorinated, have been subjected to high 
temperatures, contain high or low pH industrial wastes 
When is blue-green algae the most dominant on a pond treatment system? - 
Summer 
A 30-inch diameter wastewater interceptor is observed to be flowing half-full at 
about two fps. The approximate volume of wastewater flowing through the pipe is 
3.14x1.25 x 1.25 x 2 = 4.9 cfs x 449 ...
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EPA Certification Exam (2023/ 2024 Update) Practice Questions and Verified Answers| 100% Correct| Grade A
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EPA Certification Exam (2023/ 2024 Update) Practice Questions and Verified Answers| 100% Correct| Grade A 
 
Q: What is known as de minimis releases? 
 
 
Answer: 
It is a minimum amount of refrigerant that can be released to the atmosphere when servicing equipment. 
 
 
 
Q: What does the term temperature glide refer to? 
 
 
Answer: 
the different refrigerant boiling and condensing points of a blended refrigerant 
 
 
 
Q: Service technicians who violate the Clean Air Act 
 
 
Answer: 
may be...
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R-410a Refrigerant Study Guide Questions and Answers 100% Solved
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R-410a Refrigerant Study Guide Questions 
and Answers 100% Solved 
R-410A is a Refrigerant, also known as....? ️️SUVA - 410A....... AZ-20......Puron 
The cylinder color code for R-410A is...? ️️Rose 
HCFC-22 is scheduled for total phase out, by the year? ️️2020 
Suction and Discharge pressures for R-410A are how much higher than R-22 Systems? 
️️40% to 70% 
What is Temperature Glide? ️️A range of condensing and evaporating temperatures for 
one pressure. 
When handling Ref...
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MAINTENANCE AWARENESS TEST WITH 100% CORRECT ANSWERS
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Metals treated by _____ processes become soft. 
Annealing 
Quenching 
Stamping 
Twisting 
Annealing 
 
 
 
A spot welding system consists of an electrical supply, moveable arm, and a _________. 
Encoder 
Filler rod 
Stationary arm 
Stationary roller 
Stationary arm 
 
 
 
Oxy-acetylene welding requires no _____ and is not sensitive to wind or drafts like Gas Metallic Arc Welding or Gas Tungsten Arc Welding. 
Gas 
Torch 
Electricity 
Filler rod 
Electricity 
 
 
 
Metals that contain iron, such a...
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Texas Wastewater Class A || with 100% Correct Answers.
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Seeding of BOD samples is necessary when samples correct answers (All of the above) have a chlorine residual, have a previously been chlorinated, have been subjected to high temperatures, contain high or low pH industrial wastes 
 
When is blue-green algae the most dominant on a pond treatment system? correct answers Summer 
 
A 30-inch diameter wastewater interceptor is observed to be flowing half-full at about two fps. The approximate volume of wastewater flowing through the pipe is 3.14x1.25 ...
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