Hvacr journeyman Study guides, Class notes & Summaries

HVAC-101 Intro To HVAC Study Guide Test 2024. All NATE specialties are offered at two levels. They are: Apprentice and journeyman. Installation and service. Heating and air conditioning. Journeyman and master. - CORRECT ANSWER Installation and service HVAC Excellence: A)Oversees national curriculum standards for all trade and technical education organizations. B) Regulates all HVACR manufacturing facilities in the United States. C)Established an organization to provide programmat...

CDC: 3E151 - HVAC/R JOURNEYMAN VOLUME 5 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED (801) How much sensible heat is added if the temperature of air increases from 70 to 80 F 10 F (801) What occurs during the latent heat of condensation? Vapor turns to a liquid (801) What determines the pressure required to achieve a specific flow rate? Design of the piping system (802) What three processes take place in the condenser? Desuperheating, condensing, and subcooling (802) The...

CDC: 3E151 - HVAC/R JOURNEYMAN VOLUME 5 (VOLUME 5 - COOLING AND REFRIGERATION SYSTEMS) SCORED A+

CDC 3E151 - HVAC/R JOURNEYMAN VOLUME 3 EXAM QUESTIONS AND VERIFIED ANSWERS LATEST UPDATE (401) What relationship between magnetic field and conductors is required to generate voltage mechanically? Relative motion between the two (401) Nickel and chromium alloys are used in heater elements because they make it possible to operate the elements at high temperatures without melting (401) What effect does the length of a wire have on the amount of pressure needed to force the electrons to the ...

CDC 3E151 - HVAC/R JOURNEYMAN VOLUME 2 EXAM QUESTIONS AND ANSWERS WITH COMPLETE 100% VERIFIED SOLUTIONS (201) What affect will dust on fan blades have on heat transfer? It will reduce heat transfer (201) Where do you view the rotation and discharge of a centrifugal fan? On the drive side (201) Why are vanes used in the vane axial fan? To straighten out the spiraling motion of the air (201) What will allow a sheave to be used on different diameter shafts? Bushings (201) Where will the cl...

CDC 3E151 - HVAC/R JOURNEYMAN VOLUME 4 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ (601) How is static electricity best controlled? Grounding, bonding, humidifying (601) Grounded wires carrying off static charges neutralizes the difference in electrical potential (601) A fuel spill should be reported when how many gallons or more is leaked or spilled? 25 (601) A leak of 35 gallons should be reported to the state regulator within 24 hours (602) When the viscosity of an ...

CDC 3E151 - HVAC/R JOURNEYMAN VOLUME 1 EXAM QUESTIONS WITH COMPLETE SOLUTIONS GRADED A+ (001) When using a halide leak detector, the bluish flame turning green indicates a refrigerant leak (001) On a manifold gauge assembly, the vacuum hose is 3/8 inch and the other hoses are 1/4 inch because larger sizes allow for fewer restrictions which makes it easier and quicker to pull a vacuum (001) Why should the manifold gauge assembly not be used when measuring a vacuum? The gauge assembly read...