Hvac oil burner exam Study guides, Class notes & Summaries

HVAC CONTRACTOR EXAM PRACTICE QUESTIONS AND ANSWERS (100% PASS) An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter - Answer️️ -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 ©PREP4EXAMS 2024/2025 REAL EXAM DUMPS Tuesda...

HVAC OIL BURNER EXAM WITH QUESTIONS AND ANSWERS #12.

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...

HVAC Exam Questions with Correct All A An electric heating unit in a duct system is classified as a - Answer-forced draft convector Radiant heat is transferred by? - Answer-infrared rays The limit switch is used on the electric element assembly to - Answer-open the circuit to the element if the furnace overheats Technician "A" says that a fusible link can be jumped out temporarily to allow the customer to get heat until the next business day. Technician "B" says that if the fuses...

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 ...

HVAC II Final Exam Review| 50 Questions | Correct Answers IF a heat pump works normally in the heating mode but will not provide cooling or a defrost mode, which component is most likely defective? - ANSWER Reversing valve Air-to-air heat pumps produce heat by - ANSWER extracting heat from the outdoor air and transferring it to the indoor air In addition to the reversing valve, the other major difference between a heat pump and a cooling only system is - ANSWER heat pumps require two ...

2024 TECHGRADES Hvac Journeyman Exam questions and answers 100% guaranteed success. 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 ...

Combustion air for an oil burner is provided​ by_____. - ANSWER-a combustion air fan The output of the ignition transformer​ is_____. - ANSWER-10,000 volts The primary control starts burner operation in response to a signal from​ the_____. - ANSWER-room thermostat When replacing an oil burner​ nozzle, always use​ a(n)_____. - ANSWER-nozzle wrench When doing a smoke spot test on a heavy​ boiler, an acceptable smoke spot number​ is_____. - ANSWER-two When reviewing the...

NATE Final Exam #2, question and answers with rated solutions A condensing unit should be mounted on a slab that is level to: A: Allow any accumulated water to evenly run out of the cabinet B: Increase airflow through the fin area C: Prevent the unit from tipping over D: Make certain any top discharge air blows straight up A A simple time-activated switch is an example of a control that does not use: A: Feedback B: Electronics C: Calibration D: Manual adjustment ...