You are coupling a tractor to a semi-trailer and have backed up but are not under it. What should you hook up before backing under?
a. The electrical service cable.
b. The emergency and service air lines.
c. Nothing; back up and lock the fifth wheel.
b. The emergency and service air lines.
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What type of compressor would you use in an instrument air system?
A. Axial compressor B. Centrifugal compressor C. Rotary compressor D. Reciprocating compressor
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When brazing very small joints or thin metal, the type of flame used in order to prevent the base metal from melting is a(n) _____.
a. carburizing flame b. neutral flame c. oxidizing flame d. non-feathering flame
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A well-conditioned cow will have fat deposits in which of the following areas?
a. ribs c. flank b. brisket d. all answers
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The _____ roof is a simple sloped roof with no ridge.
A. mansard B. gambrel C. hip D. shed
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