The correct tension for a belt in the cooling unit drive can be determined from the ____.

A. maximum continuous current
B. rated-load current
C. motor manufacturer's literature
D. nameplate


Answer: C

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While pressure testing an isolated Cummins charge air cooler (CAC), the pressure drops from 30 psi to 25 psi in 15 seconds. Technician A says that the CAC is leaking air. Technician B says that the pressure drop-off is within specification and the CAC can be returned to service. Who is correct?

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

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Is water moving upward in the soil surface layers dry called capillary action?

Indicate by YES (Y) or NO (N).

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In most areas of the South, calves are born in July and August

Indicate whether the statement is true or false

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An EGR valve that is partially stuck open would most likely cause what condition?

A) Rough idle/stalling B) Excessive NOx exhaust emissions C) Missing at highway speed D) Ping (spark knock or detonation)

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