Hvac journeyman stuvia Study guides, Class notes & Summaries

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A listed smoke damper designed to resist the passage of smoke shall be provided at each point in a duct or air transfer opening penetrates a: (A)smoke barrier wall (B)fire rated wall (C)interior wall (D)corridor wall - ANSWER Corridor wall (IMC 607.5.4) Flexible air duct may be what length? (A)10' (B)2' (C)14' (D)6' - ANSWER 14' (IMC 603.6.1.1) The maximum vertical distance between the front lower lip of a canopy Type 1 hood and the appliance surface shall be ____ feet: (A)5' (B)3' ...

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 level.(A) 3 inches below(B) 3 inches above (C) 6 inches below(D)...

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Three tons of air conditioning is equal to how many BTUs? - ANSWER 36,000 The liquid line size is _______. - ANSWER 3/8" The discharge line should feel _____ to the touch. - ANSWER slightly warm The compressor should be on a level pad _____ inches above grade. - ANSWER 3 The electrical disconnect should be in direct line of sight and no more than ____ feet away from the compressor/condenser cabinet. - ANSWER 50 Insulation is wrapped around the: - ANSWER suction line Frost on t...

Sensible Heat - ANSWER Heat that can be Measured Specific Heat - ANSWER The Amount of Heat Required to Raise 1 LB of a Substance 1*F Latent Heat - ANSWER Heat used to cause change of state. BTU - ANSWER amount of heat required to raise 1LB of water 1*F One Ton of Refrigeration - ANSWER 2000 x 144 x 24,288,000 Btu/24hours, and 12,000 Btu/hr A Room Thermostat Should be Mounted - ANSWER 5 feet from the floor To Provide Proper Oil Return to the Compressor - ANSWER Suction line must...