Technician a Says VVT (Variable Valve Timing)engines Use a Cam

question 4

Multiple Choice

Technician A says VVT (variable valve timing) engines use a cam phaser that advances or retards the camshaft as the engine is running. Technician B says VVT engines use a third cam lobe with increased lift and duration, operating a third rocker arm that is coupled to the two primary rocker arms by a hydraulically controlled pin, while the engine is running. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)neither A nor B

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Definitions:

Puncture

A small hole made by a sharp object.

Hyperglycemia

High blood sugar.

Intense Thirst

A strong and persistent desire to drink fluids, often a symptom of dehydration or uncontrolled diabetes.

Myocardial Infarction

A heart attack that occurs when the blood flow to the heart is reduced as a result of blockage in the coronary arteries or their branches.