Which units can be used to describe the density of a substance?
A) Feet per square pound B) Pounds per cubic foot
C) Cubic feet per pound D) Pounds per square foot
B
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This is a small radius formed between the inside angle of two surfaces.
a. round b. fillet c. pad d. chamfer
If Vce is 13 V and Vcc is 15 V, this transitor is
A) properly biased B) approaching cutoff C) a pnp transistor D) approaching saturation
The U-value is 1/R-value.
Answer the following statement true (T) or false (F)
Which method enables ultraviolet (UV) lamps to be able to kill the maximum number of microbes in a duct
system? a. Install UV lamps in the airstream ahead of an EAC. b. Constantly bathe the evaporator coil with UV light. c. Cycle the UV lamps on and off with the furnace blower. d. Install UV lamps in the return air duct airstream.