A commercial driver operating a manual transmission vehicle needs to bring the vehicle to a routine, complete stop on a level highway. Arrange the following driver actions in the correct chronological order from first to last.
- 1Release the accelerator and apply smooth, steady pressure to the brake pedal.
- 2Keep the vehicle in gear while decelerating to utilize engine braking.
- 3Depress the clutch pedal when the engine speed drops near idle RPM.
- 4Maintain firm brake pedal pressure until the vehicle reaches a complete halt.
Cevap
The correct sequence begins with releasing the throttle and applying steady brake pressure, followed by maintaining the transmission in gear for engine braking, depressing the clutch pedal as engine speed reaches near idle, and finally holding brake pressure until the vehicle comes to a complete halt.
During a routine stop in a manual transmission commercial motor vehicle, the driver should first release the throttle and apply the service brakes. The transmission should remain engaged in gear while slowing down to benefit from engine braking. The clutch pedal must only be depressed when the engine RPM drops close to idle (around 100-200 RPM above idle) to prevent engine stall without prematurely coasting. Finally, brake pressure is held until the vehicle comes to a full stop.
Adım Adım Çözüm
Anahtar Kavram
Standard stopping and clutch timing procedure for manual transmission commercial vehicles