Smog Check Inspector Training Level 2 Practice Test 2025 - Free Smog Inspector Practice Questions and Study Guide

Question: 1 / 400

A typical PCV system will incorporate which of the following components?

Oil filler cap, dipstick, and PCV valve

Oil filler cap, gas cap, and PCV valve

Oil filler cap, dipstick, and breather hose

Oil filler cap, dipstick, PCV valve, and breather hose

The correct answer identifies a typical Positive Crankcase Ventilation (PCV) system and includes the essential components that function together to manage the engine's crankcase pressure and emissions.

In a properly functioning PCV system, the oil filler cap allows for venting and access for oil, while the dipstick is critical for checking oil levels to ensure the engine runs effectively. The PCV valve plays a crucial role in regulating the flow of gases from the crankcase to the intake manifold, helping to reduce harmful emissions. Additionally, the breather hose connects various parts of the system, allowing for the circulation of air and the evacuation of gases.

Collectively, these components ensure that the engine operates efficiently, minimizing pollutant emissions and maintaining the engine's integrity. This integration of parts contributes to the overall performance and environmental compliance of the vehicle.

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