In order to double fan RPM, the motor horsepower
A) Must increase by a factor of 4 (2 × 2 ) B) Must increase by a factor of 8 (2 × 2 × 2 )
C) Will not be affected by the fan RPM D) Must also double
B
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Concealed condensation occurs inside an envelope assembly during a heating season if
A) the interior vapor can permeate into the assembly but cannot exit it. B) the R-value of the assembly is low. C) the R-value of the assembly is high. D) A and B. E) A and C.
A(n) _________ would be one in which the insulation is placed against the roof instead of the floor.
A. separate space B. attic C. conditioned attic D. basement
The pointer on a dial-type thermometer is moved by a:
A) Bimetal element. B) Lever that is moved by a column of mercury. C) Volatile fluid. D) Heat motor and gears.
Wetted asbestos is considered to be ________________________
A) Solid waste B) Hazardous waste C) Toxic D) Poisonous