After calculating the square footage of the building's roof and adding an allowance for hips, valleys, and
waste, the result is converted to the amount of material needed, expressed in _____.
a. blocks
b. squares
c. pallets
d. pieces
b
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The IM240 test requires the use of a chassis dynamometer and an emissions tester.
Answer the following statement true (T) or false (F)
The pulse rate is determined by the amount of resistance and capacitance connected to the emitter of the UJT.
Answer the following statement true (T) or false (F)
____ cast iron is the most widely used type of cast iron. It is easily welded but because it is somewhat porous it can absorb oils into the surface, which must be baked out before welding.
A. Malleable B. Alloy C. Gray D. White
What is the purpose of the zone 1 (master) thermostat in the basic zone control system?
A) The zone 1 thermostat controls the master bedroom. B) The zone 1 thermostat determines the operational mode of the equipment. C) The zone 1 thermostat controls the operation of all zone dampers. D) The zone 1 thermostat determines the on and off cycling of the unit.