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Question

Difficulty: EasyLubrication System

To prevent abrasive engine wear, motor oil must be continuously cleaned as it circulates through internal passages. Which component is responsible for removing particulate matter, such as carbon deposits and microscopic metal shavings, from circulating engine oil?

  1. A
    Thermostat
  2. Oil filterAnswer
  3. C
    Alternator
  4. D
    Intake valve

Answer

Oil filter
The oil filter is the dedicated component in the lubrication system that strains motor oil as it is pumped through the engine. Its internal filter element captures suspended carbon particles, dust, and microscopic metal fragments to prevent abrasive damage to bearings, cylinder walls, and the crankshaft.

Step-by-Step Solution

1
Identify the primary function described in the question
The target component must trap particulate matter and contaminants from circulating motor oil.
Engine oil picks up carbon particles, sludge, and microscopic metal wear shavings during circulation that must be captured before recirculating.
2
Evaluate the automotive components listed in the choices
The oil filter is specifically engineered with porous pleated filtration media to trap abrasive contaminants while allowing pressurized oil to flow freely.
Thermostats belong to the cooling system, alternators belong to the electrical charging system, and intake valves belong to the valvetrain/combustion system.

Key Concept

Oil Filtration in Engine Lubrication Systems
Estimated Time:45s
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Topics

Lubrication System

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