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MACS 609 CERTIFICATION Accurate 100% If lubricant is removed by recovery equipment during system refrigerant removal, what must be done with the lubricant? - ANSWER Re-install lubricant removed by the recovery equipment Before reuse, what must be done with HFC-134a that has been recovered from a mobile A/C system using recovery-only equipment? - ANSWER Question 2 options: Recycle the HFC-134a before reuse using certified equipment When can HFC-134a become combustible in a mobile air cond...

Esco Electrical Test Accurate 100% What is current flow? - ANSWER D.The flow of electrons in a circuit What is impedance? - ANSWER A.Opposition to alternating current Like charges will - ANSWER B.Repel each other Any material that will readily release electrons is called: - ANSWER B.A conductor The symbol for current is: - ANSWER B. I Electricity can produce: - ANSWER D. All the above light heat magnetism The safety ground conductor is usually colored: - ANSWER B.Green ...

ESCO Air Conditioning Exam Correct 100 Heat which causes a change in temperature of a substance is called - ANSWER Sensible heat Heat added to a substance without a rise in temperature - ANSWER Latent heat Heat added to the refrigerant in a vapor state after the evaporation process is called - ANSWER Superheat Scroll compressor move refrigerant by - ANSWER Involute Spirals The movement of heat by way of fluid is called - ANSWER Convection The movement of heat by direct contact is...

Esco Heating 208|| 100 Questions|| Accurate A1. A gas furnace is to be installed in a garage. The burners and ignition sources must be located ______ above the floor. A: 6 inches B: 12 inches C: 18 inches D: 24 inches - ANSWER C: 18 inches 2. A good description of how hi-metai fan switch operates the blower motor on a gas furnace is: A: temperature on - time off. B: temperature on - time on. C: temperature on- temperature off. D: time on - time off. - ANSWER C: temperature on- tempera...

Esco Heat pump exam Complete Questions & Answers(Rated A) 1. An air-to-air heat pump has many of the same components as an air conditioning system. The major difference is that a heat pump also has a (an); - ANSWER C: reversing valve. 2. What is the difference between "demand defrost" and "timed defrost?" - ANSWER D: demand defrost only happens when needed, and time defrost is on timed temperature 3. The thermostat that controls the auxiliary electric heat according to the outdoor...

Electric Heat ESCO - HVAC Excellence Exam AccBefore working on an electric furnace the tech should - ANSWER Review diagram, remove jewelry, and follow safety procedures. ALL OF THE ABOVE. A GFCI circuit breaker - ANSWER detects current leaks to groound the conductor in an electric heat element is usually made of - ANSWER Nichrome An example of resistive load is - ANSWER crankcase heater an example of an inductive load is - ANSWER motor an electric furnace is marked 208/230 single ...

Esco Electrical Test| 100 Questions||A What is current flow? - ANSWER D.The flow of electrons in a circuit What is impedance? - ANSWER A.Opposition to alternating current Like charges will - ANSWER B.Repel each other Any material that will readily release electrons is called: - ANSWER B.A conductor The symbol for current is: - ANSWER B. I Electricity can produce: - ANSWER D. All the above light heat magnetism The safety ground conductor is usually colored: - ANSWER B.Gre...

Air Conditioning Certification Exam (Exam Code A-02)|| 100 Questions|| Accurate 100%Heat which causes a change in temperature of a substance is called; - ANSWER sensible heat. Heat which causes a change in state of a material without a change in temperature is called; - ANSWER latent heat. Heat which is added to a vapor after the change of state occurs is called; - ANSWER superheat. Heat can travel by; - ANSWER conduction, convection, radiation. The movement of heat by way of fluid (...

Air Conditioning Certification Complete Qusensible heat - ANSWER Heat that causes change in temperature of a substance latent heat - ANSWER Heat that is added with out a rise in temperature super heat - ANSWER Heat added to refrigerant in vapor state after evaporation process is involute spirals - ANSWER Scroll compressor moves refrigerant by means of convection - ANSWER movement of heat by way of fluid or air conduction - ANSWER movement of heat by way of solid BTU - ANSWER St...

Air conditioning Certification practice te What is the movement of heat through space called? - ANSWER Radiation A refrigerant release heat when - ANSWER It condenses Why is it desirable for refrigerant in the suction line to be slightly superheated? - ANSWER To insure liquid refrigerant does not enter the compressor A 30 pound cylinder of reclaimed R-22 refrigerant has been stored over night at 70 degrees F. What should be the approximate pressure in the cylinder? - ANSWER 121 psig ...