What is a k factor?
A) A measure of thermal conductivity in BTU/hr/ft2/F/in of thickness
B) A measure of heat content in BTU/lb
C) A measure of specific heat capacity in BTU/lb
D) A measure of thermal resistance in BTU/hr/ft2/F/in of thickness
[Ques. 2] What temperature scale uses 0 as the freezing point of water and 100 as the boiling point of water?
A) Celsius B) Rankine C) Fahrenheit D) Kelvin
[Ques. 3] Why is it illegal to operate a torch with an acetylene pressure greater than 15 psi?
A) Acetylene becomes unstable and can explode above 15 psi.
B) The torch cannot be manufactured to contain pressures exceeding 15 psi.
C) Hoses cannot be built to handle pressures exceeding 15 psi.
D) Acetylene is a rare and precious resource that must be used sparingly to ensure a supply in the future.
[Ques. 4] Internally equalized thermostatic expansion valves:
A) Can be used on any type of system.
B) Are constructed so that the pressures across the needle seat are equal.
C) Measure the evaporator pressure through a passageway inside the valve.
D) Allow the system pressures to equalize on the off cycle.
[Ques. 5] The absolute temperature scale for Celsius is:
A) Celsius absolute. B) Fahrenheit. C) Rankine. D) Kelvin.
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