Hvac

According to the National Electrical Code, UF cable is permitted to be used in which of the following locations? - Answer- in wet, dry or underground locations NEC Article 340.10 & 340.12 The rating of a disconnect switch on fixed HVAC equipment must be at least _________ percent of the nameplate rated-load current or branch circuit selection current — whichever is greater. - Answer- 115 NEC Article 440.12 (A) (1) According to the National Electrical Code, non-metalic cable must be pro...

HVAC Test 1 Latest Update Graded A+ Absorption A refrigeration cycle where input energy is heat Adiabatic without gain or loss of heat Air Conditioning controlling air temperature humidity and quality Air Cooled Condenser a heat exchanger that transfers building heat to outdoor air Air Handler air moving equipment that can change air temperature humidity and quality BTU British thermal unit. 1 BTU will increase the temperature of 1 lb of water 1 degree F BTUH Rate of heat fl...

Hvac Journeyman Exam Questions and Answers 100% Pass Defects on gas piping or fittings shall be _____.(A) repaired(B) replaced or repaired and retested(C) repaired by a certified welder(D) ignored, as the operating pressure is much less than the air test. - Correct Answer ️️ -B. Fitting shall be replaced or repaired and retested. UMC Section 1316.4.3 Every absorption refrigerating system supported from the ground shall rest on a concrete slab extending not less than _____ the adjoinin...

HVAC Code Final Exam 2024. The building Official may issue a ____ to the Owner's Agent or person doing the work if the work being performed in a dangerous or unsafe manner. citation correction notice stop work order red tag - CORRECT ANSWER stop work order A venting system that removes vent gases under non-positive static pressure is also known as a _____. conventional vent system direct vent system natural draft system power vent system - CORRECT ANSWER natural draft system...

HVAC TEST QUESTIONS Two locations where a cold air return should be installed - open area of a wall and low to the ground Which of the following is the law of thermodynamics? - heat moves toward a place with lower intensity Sensible heat describes - how hot something feels Latent heat is measured in - british thermal units What is the amount of heat energy required to evaporate 1 pound of water? - 970 btu In an air conditioning system and refrigeration system, what occurs in ...

HVAC Final Exam Electrical For Air Conditioning Accurate 100%(Graded A+) When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? Select one: a. When using a single transformer system b. When heating with an oil boiler c. When heating with a gas boiler d. When using a two transformer system - ANSWER A) When Using a single transformer system Digital thermostats usually display temperature, time of day, programming and operating status. Sel...

HVAC Electrical Final Test Exam With 100% Correct Answers 2024

HVAC EXAM 2024 WITH 100% ACCURATE SOLUTIONS Two locations where a cold air return should be installed - correct answer open area of a wall and low to the ground Which of the following is the law of thermodynamics? - correct answer heat moves toward a place with lower intensity Sensible heat describes - correct answer how hot something feels Latent heat is measured in - correct answer british thermal units What is the amount of heat energy required to evaporate 1 pound of water? ...

HVAC Work Ready Exam - Electrical Exam Questions And Answers Resistance is? Opposition to current flow An electron has? A negative charge R Impedance is? Opposition to alternating current flow Current flow is? Electron flow in a circuit The safety ground conductor is usually color coded? Green or bare. Like charges? Repel each other The symbol for current is? I Any material that will readily release electrons is called? A conductor Which of the following materials would be...

HVAC FINAL Correct Questions & Answers(RateA_____is the quantity of heat required to raise the temperature of I lb of water |°F. - ANSWER British thermal unit (BTU) Comfor is typically attained at normal cooling and heating temperatures with a relative humidity of about _____% - ANSWER 50% _________is the movement of air through distribution systems and building spaces. - ANSWER Air circulation ___________is the variation of air temperature in a building space that occurs when warm air...