Examkin

Question

Difficulty: EasyRetarders Usage and Cautions

An auxiliary vehicle retarder automatically begins applying braking resistance as soon as the driver completely releases the accelerator pedal.

Answer: Answer

Answer

True
Auxiliary retarders (including exhaust, engine compression, hydraulic, and electric types) begin applying braking resistance automatically as soon as the driver takes their foot off the accelerator pedal. This design assists in vehicle speed control and prevents foundation brake overheating.

Step-by-Step Solution

1
Identify the standard operating trigger for auxiliary retarders in commercial motor vehicles.
Retarders engage automatically when the driver releases the accelerator pedal.
Auxiliary retarders provide supplemental slowing power during coasting and descending grades without requiring initial service brake input.
2
Evaluate the statement against CDL vehicle control principles.
The statement is accurate and true.
Lifting off the accelerator pedal immediately initiates the retarder's braking action on the drive wheels.

Key Concept

Automatic Activation of Auxiliary Retarders on Throttle Release
Estimated Time:30s
Rate this question

Topics

Retarders Usage and Cautions

More questions from this topic