Vapor pressure - Study guides, Class notes & Summaries

Four principles of water damage restoration: - ANSWER-Provide for health and safety of workers and occupants; Document everything; Mitigate, and Dry Four principles of drying - ANSWER-Extract, Evaporate, dehumidify, control temp Extraction - ANSWER-is removing excess water and is the first step in mitigation Evaporation - ANSWER-is achieved by using energy (heat) to transform water trapped in porous materials into a vapor, thereby releasing the moisture from the materials. Dehumidifi...

After backfilling the vapor return and vent lines, the maximum pressure drop through the system shall not exceed ________at 60 cubic feet per hour as determined by TP-201.4, Dynamic Backpressure. a. 0.75 inches WC b. 0.5 inches WC c. 0.32 inches WC d. 0.55 inches WC correct answer: c. 0.5 inches WC CARB's most recent vapor recovery regulations are known as: a. EVR (enhanced vapor recovery) b. CVR (California vapor recovery) c. PVR (protective vapor recovery) d. ORVR (onboard ref...

Z-51 REFRIGERATION TEST With Correct Solutions 2024 Update Efficiency of the refrigerant cycle is affected by the operations of the condenser. Of the following, a more efficient centrifugal compressor operation results from: - Answer -Lowering the condensing pressure The heat removed from the refrigerant in a condenser is: - Answer -Sensible and latent heat The refrigerant unit that you have been assigned to is being taken out of service for a major repair. You have been assigned to withdr...

NFPA 10 Exam 71 Questions with Verified Answers When should wheeled fire extinguishers be considered? - CORRECT ANSWER • High hazard areas are present. • Limited available personnel are present. Requiring: High agent flow rate, Increased agent stream range, increased agent capacity NON-DOT low pressure fire extinguisher cylinders that pass a hydrostatic test shall have the following recorded on a label: - CORRECT ANSWER • Month and year test was performed (perforated) • Test pre...

The recovery process on an R-12 or R-134a A/C System should continue until a stable vacuum is held by the system for: - ANSWER-2 minutes A recycled refrigerant container has been checked and found to be above the given pressure limit for the ambient temperature Technician A says that the refrigerant container should be placed in a cooler storage area before use Technician B says that the vapor in the container should be slowly vented into a refrigerant handling unit who's right - ANSWER...

Refrigerant 410A Certification Questions and Answers 100% Solved -Suva 410a -AZ-20 -Puron ️️R-410a is also known as? 0.3 ️️The temperature glide for R-410a is less than _____ degrees Fahrenheit over air conditioning and refrigeration operating ranges. -Can be irritating to the skin -Is hydroscopic -Has improved heat transfer characteristics over mineral oils ️️Polyol Ester (POE): 50 psig ️️The low pressure control on R-410a systems will open at: Absolute discharge pr...

The following are types of what? LPG, CNG, piped natural gas or solid fuel (coke). - correct answer Portable fueled salamanders/space heaters National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL) for carbon monoxide - correct answer 35 parts per million (ppm) over an 8 hour period What is the third leading cause of fires in buildings under construction ? - correct answer temporary heating What is direct heat flow through matter? - correc...

RI Journeyman's Refrigeration License Exam Questions With Verified Solutions. The temperature scale that freezes water at 32 deg. and boils water at 212 deg. is known as the ___________ scale - answerFahrenheit The temperature scale that freezes water at 0 deg. and boils water at 100 deg. is known as the __________ scale. - answerCentigrade The definition of specific heat is _______________________ - answerthe amount of heat required to raise 1 lb of a substance 1 deg. F. The definition...

Minnesota Special Engineer Boiler License Exam Prep (2023/2024 Update) | Questions and Verified Answers| 100% Correct Q: A feed water line must have what two valves? Answer: Check & stop Q: After a new boiler is installed, what must be performed? Answer: Hydrostatic test Q: All stationary boilers of what pressure must have 2 valves on the blow off line? Answer: 100psi Q: How is boiler efficiency calculated? Answer: Output divided by input Q:...

Type of sealant you should you use on a Phil-Tite Ball Float nipple: correct answers Pipe dope Number of open valves on the clean air separator: correct answers One You must be CERTIFIED by Healy to re-connect a Healy breakaway, True or False? correct answers False The type of pressure gauge is recommended to test Healy Vac correct answers SYSA gauge measuring 0-100 WC On new construction, after July 1, 2004, Can you install an in-ground Spill Bucket? correct answers YES-When Piping ...