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HVAC Exam Preparation Questions With Correct Solutions How can concentration of contaminants be calculated? a) by adding the source strength to the ventilation rate b) by dividing the source strength by the ventilation rate c) by subtracting the ventilation rate from the source strength d) by multiplying the source strength by 1000 ppm e) by dividing the source strength by the production rate☑️Correct Ans-b) by dividing the source strength by the ventilation rate

MCC HVAC Study Guide Questions With Correct Answers In your own words, state the second law of thermodynamics.☑️Correct Ans-A temperature difference must exist between two materials in order for heat energy to travel. ((Ref: 3/7))

HVAC S.T.A.R EXAM Reviewed Questions With Correct Answers Unit ventilators are usually equipped with outside air dampers to:☑️Correct Ans-A. Partial Correct: Provide ventilation air during building occupancy B. Partial Correct: Comply with most local or state codes

HVAC Certification Reviewed Exams Questions With Correct Answers Higher the ambient temperatures, ____ will be the evacuation time of the refrigerants from the system☑️Correct Ans-Lesser

Hvac Journeyman Exam Questions With Correct Answers Industrial product-conveying ducts and their fittings for abrasive and nonabrasive dust or solid materials shall be constructed of _____.(A) sheet meta(B) polyvinyl chloride l (C) fiberglass (D) A and C apply☑️Correct Ans-A. Shall Be Constructed of sheet metal. UMC Section. 5 0 6.1

HVAC Electrical For Air Conditioning Final Exam Questions With Correct Answers What device is added to a oil or gas forced hot air system when it is not AC ready? Select one: a. Fan limit switch b. Fan Center c. Multi Stage Thermostat d. Mars Relay☑️Correct Ans-b. Fan Center

Hvac Employment Readiness Exam Questions With Correct Answers What does the evaporator do?☑️Correct Ans-Transfers heat from the refrigerated space into the refrigerant.

HVAC Contractor Practice Questions With Answers 100% Correct According to the standard method of calculation in the IFGC, what would be the required volume in cubic feet of indoor combustion air be given a 100,000 But/hr gas furnace is rated with an annual fuel utilization efficiency "AFUE" at 80%☑️Correct Ans-4,000

Hvac Contractor Exam Questions With Correct Answers What is used to prevent microbiological growth and help "dirty socky syndrome? A. Radiation B. Ultraviolet light C. Electrostatic filters D. Heat rated static filters☑️correct ans-ultraviolet light

HVAC: EPA 608 Certification Practice Questions With Correct Answers What is temperature glide and what type of blend won't have it?☑️Correct Ans-Temp. blend is the difference between the dew point and the bubble point