Hvac unit 20 Study guides, Class notes & Summaries

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...

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...

Unit 1: Read This Unit First: What I Need to Know to Understand Electricity Unit 2: Ohms Law Unit 3: Safe Use of Electrical Instruments Unit 4: Electrical Fasteners Unit 5: Power Distribution Unit 6: National Electric Code Unit 7: Electrical Installation of HVAC Unit 8: Transformers Unit 9: Relays, Contactors and Motor Starters Unit 10: Capacitors Unit 11: Thermostats Unit 12: Pressure Switches Unit 13: Miscellaneous Electrical Components Unit 14: How Do Mo...

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...

What is the best method to repair a fractional horsepower motor that has a bad bearing? - ️️Replace the entire motor. A technician needs to check a single-phase compressor. He labels the three terminals "A," "B," and "C" and takes resistance readings of the windings. He reads 10 ohms from "A" to "B," infinity from "B" to "C," and infinity from "C" to "A." Identify the terminals. - ️️Can not identify terminals: open winding Technician "A" says that a shorted wind...

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 Questions and Answers Updated 2024/2025 (100% Verified) 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(D) 6 inches above. - ANSWER-B. Slab extending not less than 3" above the adjoining ground level. UMC Section 1106.2 Any part of a venting system installed at an angle greater than 45 degrees from the vertical i...

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...

Hvac Journeyman Exam Questions and Answers Updated 2024/2025 | 100% Verified. 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 a...

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...