Hvac unit 20 - Study guides, Class notes & Summaries

2 wires in nipple - ANSWER31% 20 amp Branch circuit supplies multiple receptacles the receptacles shall have a ampere rating no less than - ANSWER15 amps 24' nipple fill - ANSWER60% 30' nipple - ANSWER53% 42' nipple - ANSWER53% a 120 volt 15-20 amp receptacle shall be located with in of air conditioning and refrigeration, heating systems - ANSWER25 feet a door used by personnel to exit the work space that is less than 25 feet from the work space shall - ANSWERswing out...

HVAC UNIT 23 COMPRESSORS correctly answered 2023Describe the operation of a compressor - correct answer Vapor pump- It increases suction pressure level to the discharge pressure level. Takes a low pressure low temp vapor compresses it into a high pressure, high temp vapor Name 5 types of compressors - correct answer Reciprocating, screw, rotary, scroll, centrifugal True or false: A compressor can compress a liquid - correct answer False What would be considered a higher-than-normal temp...

Heat intensity is measured in ________. degrees A BTU is a measure of ________. amount of heat Heat transferred through the air is called ________. convection Two technicians are discussing heat movement. Technician A says that heat is a form of energy. Technician B says that heat travels from hot to cold. Which technician is correct? Both 100 degrees F is about ________ degrees C. 38 c A main source of heat used to warm the passenger compartment is ______...

Hvac Journeyman Exam 2024 Questions and Correct Answers. 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 leve...

d correct answers A system used extensively in hotels and motels due to its minimal space requirement, relatively low initial cost and high degree of individual zone control is called: *A* A hydronic heat pump system *B* An induction system *C* A variable volume system with perimeter heating *D* A fan coil unit with make-up air system *E* A compartmental atomizing system b correct answers "An HVAC system that provides cooling and heating all year round is highly energy efficient but h...

Vivint practice quiz questions and answers 100% correct True or False: The FireFighter may be installed next to a stand-alone battery-powered smoke detector. False True or False: When performing a full system test, you may bypass any open doors or windows. False When programming an SKEY1, you must Always...? Enable emergency key True or False: When running power to the TAKE-345, polarity does not apply. False When programming the emergency key for an SKEY1, which zone/sensor types are recom...

HVAC Unit 2 questions correctly answered 2023 Matter - correct answer Substance that occupies space and has mass Atoms - correct answer Smallest particle of an element Compound - correct answer When atoms of one substance combine with another to create a new substance Matter (3 States) - correct answer Solid, Liquid, Gas Mass - correct answer Matter held together to the extent that is is considered one body Weight - correct answer Force that matter applies to a supporting surface...

Hvac Journeyman Exam 2024 Questions and Correct Answers. 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 leve...

A system used extensively in hotels and motels due to its minimal space requirement, relatively low initial cost and high degree of individual zone control is called: Choose one answer. a. A hydronic heat pump system b. An induction system c. A variable volume system with perimeter heating d. A fan coil unit with make-up air system e. A compartmental atomizing system correct answers d "An HVAC system that provides cooling and heating all year round is highly energy efficient b...

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...