Which statement about gas-fired infrared heaters is correct?
a. A reverberator is used to reduce carbon monoxide emissions.
b. Low-intensity heaters use submerged-flame burners.
c. Safety devices are similar to those used in induced-draft gas furnaces.
d. Gas-fired infrared heaters cannot be used in garages.
c. Safety devices are similar to those used in induced-draft gas furnaces.
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Name the type of drawing that is normally created at an angle other than 45°, and the scale on the receding axis is also different from those used in cavalier and cabinet drawings. The most common angles for a general oblique drawing are 30°, 45°, and 60°, but any angle can be used. Any scale from half to full size can be used.
What will be an ideal response?
The mixed angular gravel, rock, and soil found at the foot of a slope is typical of what type of parent material?
A) glacial B) fluvial C) eolian D) colluvial E) lacustrine
When leak testing a low-pressure chiller, the pressure should not be allowed to exceed 10 psig to avoid:
A) High compressor current draw. B) Opening the high-pressure cutout and shutting the system down. C) Freezing the chiller bundle. D) Breaking the rupture disk and losing the refrigerant charge.
When a driver applies the brakes too hard, downshifts too much, or suddenly slows down, _____ can occur.
A. wheel lockup B. a tire slide C. a power skid D. spinning wheels