Hvac

Hvac Journeyman Exam Questions & answers

HVAC journeyman prep test Questions & answers

HVACR Journeyman Practice Exam

HVAC Journeyman Test Questions & answers

HVAC JOURNEYMAN TEST Questions & answers

HVAC FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Which of the following would have the greatest effect on the heat content of the refrigerant? A) The refrigerant's humidity B) The refrigerant's state C) The refrigerant's temperature D) The refrigerant's pressure Correct Answer B) The refrigerant's state A mechanical refrigeration system cools a room by: Removing heat from the room. The four types of cooling mechanisms are: Evaporative, Thermoelectric, ...

RESIDENTIAL HVAC INSTALLATION EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Clearance tolerances are such that the ordinary clean refrigerant oil can be used satisfactorily in a vacuum pump. false The maximum recommended pressure for leak testing is 150 psig on the low-pressure side of the system. true Noncondensable gases ____. are undesirable in a refrigeration system To pull a vacuum means to ____. lower the pressure in a refrigeration system below atmospheric A(n) _ pr...

RESIDENTIAL HVAC INSTALLATION EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Clearance tolerances are such that the ordinary clean refrigerant oil can be used satisfactorily in a vacuum pump. false The maximum recommended pressure for leak testing is 150 psig on the low-pressure side of the system. true Noncondensable gases ____. are undesirable in a refrigeration system To pull a vacuum means to ____. lower the pressure in a refrigeration system below atmospheric A(n) _ pr...

HVAC EXAM QUESTIONS AND ANSWERS 100% SOLVED GRADED A+ LATEST UPDATE 2024 Heat Transfer Moves from one substance to another as well as between molecules of a substance, temperature is the driving force Temperature The level of heat or heat intensity, measured with thermometers Heat Is the motion of molecules, and travels from a warm substance to a cold substance Conduction Energy travelling from one molecule to another, involves direct contact Radiation Passes through air and heats the ...

CDC 3E151 - HVAC/R JOURNEYMAN VOLUME 2 EXAM QUESTIONS AND ANSWERS WITH COMPLETE 100% VERIFIED SOLUTIONS (201) What affect will dust on fan blades have on heat transfer? It will reduce heat transfer (201) Where do you view the rotation and discharge of a centrifugal fan? On the drive side (201) Why are vanes used in the vane axial fan? To straighten out the spiraling motion of the air (201) What will allow a sheave to be used on different diameter shafts? Bushings (201) Where will the cl...