After windows, doors, and skylights are installed, the space between the frame and the structure must be sealed against air infiltration. This is typically accomplished with ____ insulation designed specifically for this purpose.
A. low-expansion spray foam
B. flexible plastic
C. rubber
D. PVC
Answer: A
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What does NASA stand for?
a. North American Space Agency b. North American Space Administration c. National Aeronautics and Space Administration d. National Aero-Space Administration
What does UART stand for, and what does it do?
A) Universal ASCII Relay Transmission; defines a method (standard) by which data communications can be made between parallel and serial devices or systems. B) United Artists Radio and Television; the standard data interfacing system first used by the movie industry. C) Universal ASCII Receiver Transmitter; it is used to transmit and receive ASCII characters. D) Universal Asynchronous Receiver Transmitter; it is used to interface the parallel data bus in a typical computer system to serial data transmission lines.
When a flexible metal chimney liner is used, the _____
a. liner must always be insulated with transite b. liner may need to be a larger diameter than the correct size of smooth, rigid pipe c. liner can be sized in the same way as solid metal vents d. furnace must always be common-vented with the water heater
Technician A states block mounted cams convert rotary motion into linear motion of the followers. Technician B states overhead cams convert rotary motion into rotary motion of the rocker arms..
A. Technician A only. B. Technician B only. C. Both A and B. D. Neither A nor B.