Technician a Says That the Throttle Valve Is Controlled by a Cable

question 227

Multiple Choice

Technician A says that the throttle valve is controlled by a cable or linkage hooked to the engine throttle linkage. Technician B says that a misadjusted throttle valve cable can prevent wide-open throttle (WOT) on an engine. Who is correct?

• A) Technician A
• B) Technician B
• C) Both A and B
• D) Neither A nor B

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Definitions:

Tractor Protection Valve (TP)

A safety device on tractor-trailer combinations that protects the air brake system from losing air pressure in the event of a trailer breakaway or leak.

Pneumatic Circuits

Systems designed to use compressed air to power moving parts and machinery, using valves, tanks, and pipelines to control the flow and pressure.

FMVSS-121

Federal Motor Vehicle Safety Standards 121, which sets the requirements for air brake systems in heavy-duty vehicles to ensure safety through proper functionality and performance.