The lowermost layer of the atmosphere is called the
a. ionosphere
b. mesosphere
c. stratosphere
d. troposphere
e. thermosphere
d
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While having a discussion, Technician A says that shock absorbers are responsible for absorbing a good deal of road shock. Technician B says that the tires are a vehicle's primary shock absorbers. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
The tool that is MOST-Likely used to regrind a crankshaft is the:
A. stress raiser B. crosshatch C. gasket D. crankshaft grinder
The advantage of a phototransistor over a photodiode detector is that __________.
A. it operates at higher frequencies B. it has greater light sensitivity C. it is linear D. it has small temperature coefficients
Heat exchangers used in steam systems are usually _____.
a. water-to-steam b. steam-to-air c. steam-to-water d. steam-to-steam