To ensure that the tractor and trailer are properly coupled by the fifth wheel, check by:
A. Pulling the tractor forward with the trailer brakes set
B. Measuring clearance between the fifth wheel plate and the trailer upper coupler
C. Listening for an audible snap as the jaws close
D. Observing that the release lever is in the engaged position
A. Pulling the tractor forward with the trailer brakes set
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One way of visualizing a half section is to imagine a part that is cut such that ____ of it is removed to reveal the interior detail.
A. one-quarter B. one-third C. one-half D. three-fourths
This type of weld is applied to a butt joint between two pieces of metal.
a. fillet weld b. square groove weld c. V groove weld d. bevel groove weld
Which type of evaporative humidifier utilizes a fan to draw in air?
A) Evaporative B) Fan-powered C) Bypassing D) Atomizing
An all-OR realization of 
is
A. 
B. 
C. 
D. 
E. B + C + A