Atmospheric pressure is defined aT: ___________________ .
Fill in the blank(s) with the appropriate word(s).
14.7 psi at sea level
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What capacity system will provide the best operating efficiency in cooling for a house with a design heat gain of 2 tons?
A) A 4 ton system B) A 3 ton system C) A 2 ton system D) A 2.5 ton system
Leaks in commercial refrigeration systems must be repaired if they have an annual leak rate of:
A) 10% of the charge per year. B) 25% of the charge per year. C) 15% of the charge per year. D) 35% of the charge per year.
What is a gas pilot light?
A) a small flame that is used to light the main burners B) an LED that indicates the burner activity C) a light that allows the technician to see inside the furnace D) the first portion of the main burner that remains on at all times
The subflooring and roof decking over the posts and beams construction is commonly 2X6, 2X8, or 1 1/8" (50X150, 50X200, or 28 mm) T&G plywood.
Answer the following statement true (T) or false (F)