Hvac Study guides, Class notes & Summaries

F80 Exam Questions and Answers Graded A After what date was the F-24 certificate of Fitness not recognized. July 31, 2014 How often must this certificate be renewed? Every 3 years In what types of buildings and occupancies are coordinators of fire safety and alarm systems in homeless shelter required? Homeless shelters, one-way voice communication systems, or occupied for more tha n fifteen persons for a period of more than 30 days. What is the certificate of occupancy? Determines the number ...

ASD Exam Questions With 100% Correct Answers 2023 Category 1 - Correct Answer-Category of Water that originates from sanitary water source (Clean) Catetroy 2 - Correct Answer-Category of Water that is contaminated; may cause discomfort or sickness (Grey) Category 3 - Correct Answer-Category of Water that is grossly contaminated; includes toxins, pathogens Special Situation - Correct Answer-Regulated or hazardous materials Class 1 - Correct Answer-Class of water that has least amount...

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. Select one: True False - Answer-True With the fan switch in the on position...

HVAC JOURNEYMAN EXAM AND PREP TEST EXAM 250 QUESTIONS AND CORRECT DETAILED ANSWERS TOP RATED VERSION FOR ALREADY A GRADED WITH EXPERT FEEDBACK|BRAND NEW!|REVISED

Test Bank For Fundamentals of HVACR 4th Edition By Carter Stanfield, David Skaves (All Chapters, 100% Original Verified, A+ Grade) Test Bank For Fundamentals of HVACR 4e By Carter Stanfield, David Skaves (All Chapters, 100% Original Verified, A+ Grade)

MD HVAC Masters Questions with Complete Solutions

HVAC Excellence - ELECTRICITY Exam 2024 Guide with complete solution

BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS LATEST UPDATE 2024 Two basic categories of chillers are the ___. a. Compression cycle and absorption b. purge and absorption c. absorption and lithium bromide d. purge and lithium bromide - Correct Answer a. Compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, _____, and ventilation. a. circulation b. velocity c. . d. none of the above - Correct Answer a. circulation T...

BOMA – HVAC QUESTIONS AND ANSWERS 100% PASS Two basic categories of chillers are the compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, and ventilation circulation The primary function of an expansion device is to produce a reduction in the pressure on the liquid refrigerant, regulate the flow of refrigerant into the evaporator, lower the boiling point of the refrigerant far enough below the temperature of the load to g...

On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? CORRECT ANSWER 6-7PSI or 6F What is the primary purpose of using flux when soldering copper or brass parts? CORRECT ANSWER Prevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? CORRECT ANSWER Drain off and away from the outdoor coil. Why must the runoff be drained off and away from the outdoor coil? CORRECT ANSWER Exc...

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. - 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 adjoining ground level.(A) 3 inches below(B) 3 inches above (C) 6 inches below(...

Michigan Mechanic Certification- HVAC Latest Update Graded A+ Cooling system leak diagnosis Pressure test or dye test Purpose of a radiator The purpose of the radiator is to dissipate heat that is picked up by coolant in the engine into the air passing through its fins and tubes Symptoms of low coolant Engine overheating and no heat from the HVAC system Purpose of the thermostat The purpose of the thermostat is to trap the coolant in the engine until it reaches it operating temp...