Soldering - Study guides, Class notes & Summaries

The information printed on the outside of copper tubing does not include the joining method. correct answer: True Because of the pipe material's flexibility, manifold plumbing distribution systems are commonly made using ____. correct answer: PEX pipe An adjustable wrench is a smooth jawed wrench used for turning nuts, bolts, small pipe fittings and chrome-plated pipe fittings. correct answer: True _________ can occur due to material failure or poor workmanship. correct answer: Lea...

NATE AC Service Certification Exam With 100% Correct Answers 2023

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 ...

NCCER HVAC Level 1, Module 8 - Soldering Brazing Exam Questions 2024. What 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 w...

Sprinkler system must NOT be shut off or impaired while hot work is performed - Answer-Place damp cloth guards on individual sprinkler heads The person conducting the fire watch ______ have other duties - Answer-CANNOT A portable fire extinguisher with a rating of _________ is required and should be within ____ feet travel distance hot work area - Answer-2-A:20-B:C///30 For ROOFING OPERATIONS, a portable fire extinguisher with a minimum rating of ______ is required - Answer-3-A:40-B:C Fir...

PICAT Verification Test Practice Questions And Answers 2023 In making permanent electronic connections, use? Correct Answer: soldering iron When current flow is interrupted by a blown fuse, the circuits becomes? Correct Answer: Open A standard multimeter does not measure? Correct Answer: frequency Electric current flowing from one component to the next is an example of what kind of circuit? Correct Answer: Series In order to make an electric current flow, it is necessary to have? Correct...

ASE A6 Test Prep – Electrical/Electronic Systems - Questions, Answers and Explanations Adding an additional path through which the current can flow has decreased the total resistance of the circuit. Each light drops 12 volts. An ohmmeter is being used to check a circuit for continuity. Technician A says an infinity or full scale reading on an ohmmeter indicates no continuity. Technician B says a zero reading on an ohmmeter indicates continuity. Who is right? A. Technician A only B. Technician...

PICAT/ASVAB Test Exam | Questions and Answers Graded A+ Latest 2024/2025 Which of the following is NOT a pipe wrench? - CORRECT ANSWER Socket Wrench What doesn't have an electric motor? - CORRECT ANSWER Toaster In concrete work a "darby" is a - CORRECT ANSWER Type of wooden float The technique for joining copper water pipes is called? - CORRECT ANSWER Soldering A Speaker th

On an R-22 system, line diameters and lengths are typically specified for a vapor pressure drop that does not exceed what? - ANSWER6-7PSI or 6F What is the primary purpose of using flux when soldering copper or brass parts? - ANSWERPrevent Oxidation The water that results from a defrost cycle of an air to air heat pump(runoff) must? - ANSWERDrain off and away from the outdoor coil. Why must the runoff be drained off and away from the outdoor coil? - ANSWERExcessive ice can build up on t...

NCCER HVAC Level 1, Module 8 - Soldering/Brazing (Review Q&A For NCCER Soldering/Brazing Exam) What is a neutral flame? Correct Ans - Equal parts oxygen and acetylene What is a carburizing flame? Correct Ans - A cooler flame used for light brazing. At what PSI does Acetylene become unstable? Correct Ans - 15 psi What do you use to light a torch? Correct Ans - Cup Striker Why is it dangerous to use a lighter to light a torch...