Among Technician A and Technician B, who is correct?

A. Technician A, who says that the first parts of the engine to be lubricated are the crankshaft bearings.
B. Technician B, who says that the rocker arms are the first engine parts to be lubricated.

Technician A is correct. When an engine is started, the engine's oil pump begins pumping oil which first goes to the crankshaft bearings, before reaching other engine components such as the rocker arms.

Explanation:

In the engine lubrication process, Technician A is correct. In a standard automobile engine, the first parts of the engine to be lubricated when the engine is started are typically the crankshaft bearings. Right after the oil pump starts to work, it sends oil under pressure through the oil galleries. The oil galleries carry oil to the crankshaft main bearings and the oil is forced through holes in the crankshaft to the connecting rod bearings.

Contrarily, the rocker arms are not the first parts to be lubricated. Although they are, indeed, a crucial part to be lubricated to ensure the proper functioning of the engine, this process occurs substantially after the crankshaft bearings are lubricated.

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Among Technician A and Technician B, who is correct?A. Technician A, who says that the first parts of the engine to be lubricated are the crankshaft bearings.B. Technician B, who says that the rocker arms are the first engine parts to be lubricated.

Answer :

Final answer:

Explanation:

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Other Questions

Among Technician A and Technician B, who is correct?

A. Technician A, who says that the first parts of the engine to be lubricated are the crankshaft bearings.
B. Technician B, who says that the rocker arms are the first engine parts to be lubricated.