Technician A says that a trailer service brake signal is always sourced from the tractor primary circuit. Technician B says that a trailer service signal can only pass through a tractor protection (TP) valve when it is in its ON state. Who is correct?

A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B


Answer: B

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Lopa has six grain bins on her farm. Two bins are 48 feet in diameter, 34 feet to the roof, and the roof is 8 feet 3 inches high. The remaining bins are 42 feet in diameter, 28 feet to the roof, and the roof is 7 feet 6 inches high. She is able to fill the roof to 88 percent capacity. How many bushels of grain can be stored on the farm?

What will be an ideal response?

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List the types of compressors and briefly explain how they operate

What will be an ideal response?

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When evacuating a system, the technician should use __________ or __________ hoses as synthetic hoses are __________ (they allow gases to penetrate)

What will be an ideal response?

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Another name for relative coordinate programming is _________________________ programming.

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

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