mastery exam\nquestion 2 of 20\nwhich of the following best describes all the functions of the main…
mastery exam\nquestion 2 of 20\nwhich of the following best describes all the functions of the main bearing?\na) support the crankshaft, control end play, provide a replaceable wear surface and dissipate heat.\nb) support the crankshaft and dissipate heat only.\nc) support the crankshaft, control end play, and provide a replaceable wear surface only.\nd) mainly used to remove heat.
Answer
Brief Explanations:
Main bearings in an engine have multiple core functions: they support the crankshaft to maintain its position, control crankshaft end play (axial movement), provide a replaceable wear surface to protect the crankshaft and engine block, and help dissipate heat generated from friction between the crankshaft and bearing. Option A encompasses all these key functions, while the other options only cover a subset.
Answer:
A) Support the crankshaft, control end play, provide a replaceable wear surface and dissipate heat.