Hvac copper and piping - Study guides, Class notes & Summaries

HVAC Copper And Piping Study Guide Questions 2024. Of the following copper tubing types, the one with the thinnest wall is? - CORRECT ANSWER Type M. Which of the following gases may be safely used to pressure test a refrigeration system? - CORRECT ANSWER Nitrogen. The type of plastic pipe that is primary connected with clamps is? - CORRECT ANSWER PCV. Refrigeration tubing size are expressed in terms of? - CORRECT ANSWER Outside diameter of the tube. Saw blade that is too coarse ...

HVAC Copper And Piping Verified Exam Questions With Correct Answers 2024. Of the following copper tubing types, the one with the thinnest wall is? - CORRECT ANSWER Type M. Which of the following gases may be safely used to pressure test a refrigeration system? - CORRECT ANSWER Nitrogen. The type of plastic pipe that is primary connected with clamps is? - CORRECT ANSWER PCV. Refrigeration tubing size are expressed in terms of? - CORRECT ANSWER Outside diameter of the tube. Saw blade ...

HVAC Journeyman's Study Set Exam Final Questions and Answers The maximum horizontal length of a single-wall connector shall be ____ percent of the height of the chimney or vent. - CORRECT ANSWER-75% Grease filters shall be installed at an angle of not less that ____ degrees from the horizontal and shall be equipped with a drip tray beneath the lower edge of the filters - CORRECT ANSWER-45 A device that will automatically shut off the fuel supply to a main burner or group of burners ...

HVAC Masters Test Questions and Answers Already Passed What is the minimum size of drier vent 4 inches Can a 2x4 studding be used for plenum or return chases or duct No Appliance in a public garage should have a minimum clearance from the floor 8 feet Duct insulation should have a smoked developed index of no more than 50 Duct insulation material should have a minimum flame spread rating of 25 What is the maximum temperature of gypsum board 125 degrees Fahrenheit What is ...

HVAC Journeyman's Study Set Exam Final Questions and Answers The maximum horizontal length of a single-wall connector shall be ____ percent of the height of the chimney or vent. - CORRECT ANSWER-75% Grease filters shall be installed at an angle of not less that ____ degrees from the horizontal and shall be equipped with a drip tray beneath the lower edge of the filters - CORRECT ANSWER-45 A device that will automatically shut off the fuel supply to a main burner or group of burners ...

Hvac Journeyman Exam Questions and Answers Updated 2024/2025. 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 ...

Adjuster Pro Exam 2024 Questions and Answers John is doing some lawn maintenance using a steel blade on his weed-whacker. He fails to properly tighten the blade and it comes loose while he is trimming some tall grass at the edge of his property. The blade flies off towards his neighbor's house and crashes into the HVAC unit, severing the lines and effectively destroying the unit. Which coverage in John's homeowners policy might pay for the damage he caused to his neighbor's HVAC system?...

NCCER HVAC Level 1, Module 8 - Soldering BrazingWhat is a neutral flame? Equal parts oxygen and acetylene What is a carburizing flame? A cooler flame used for light brazing. At what PSI does Acetylene become unstable? 15 psi What do you use to light a torch? Cup Striker Why is it dangerous to use a lighter to light a torch? The flame may travel back into the lighter and cause it to explode. How far do you open the acetylene valve on the tank when brazing? 1/2 turn ...

HVAC CONTRACTOR EXAM COMPLETE SOLUTIONS An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter ️voltmeter This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and control superheat A. automatic expansion valve B. thermostatic expansion valve C. low side float D. schraeder valve ️thermostatic expansion valve when installing a re...

Professional Home Inspector Exam 2 NHIE/TREC - Q & A (Complete Solutions) What type of roof requires on interlayment of felt between courses? a. Wood shakes b. Roll roofing c. Wood shingles d. Slate shingles In an older home, a forced hot air furnace is replaced by a heat pump. The heat coming out of the register is: a. Hotter b. Cooler c. Same d. Depends on the air duct layout When inspecting kitchen cabinets: a. Observe that they are securely attached to the wall b. Remove everything from th...