The roller chain number, such as a #80 corresponds to:

A. chain pitch. B. sprocket pitch diameter. C. overall diameter. D. none of the above.


A

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The term ____ is used for an unskilled person who has no training and is not enrolled in a training program for a specific trade.

A. apprentice B. helper C. journeyman D. labor craftsman

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Which type of air distribution system is shown in the figure below?



a. Extended-plenum system
b. Reducing-trunk system
c. Radial system
d. Perimeter-loop system

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Which of the following is NOT an advantage of pilot injection?

A. reduced engine wear B. lower cold-start emissions C. detonation avoidance D. extended EUI service life

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The ____________________ refers to the edge of the metal burned back slightly by the electrode just ahead of the molten weld pool.

Fill in the blank(s) with the appropriate word(s).

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