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Difficulty: MediumEnvironmental Impact and Fuel Efficiency

Engaging cruise control while driving across undulating or hilly terrain improves overall fuel efficiency compared to attentive manual throttle control.

Answer: Answer

Answer

False. Using cruise control on hilly or undulating roads increases fuel consumption because the system aggressively applies throttle to maintain speed on gradients rather than anticipating terrain.
The statement is false because cruise control reacts rigidly to speed reduction on slopes by injecting extra fuel to maintain the preset speed, whereas an eco-safe driver eases the accelerator and uses vehicle momentum to conserve fuel.

Step-by-Step Solution

1
Analyze how cruise control operates when encountering an uphill gradient.
The system detects speed loss on an incline and demands sudden, high engine power to hold the exact set speed.
Cruise control is calibrated to maintain speed without considering fuel efficiency or impending changes in topography.
2
Compare cruise control operation to eco-safe driving techniques on gradients.
An eco-conscious driver eases off the accelerator slightly approaching the crest and harnesses downhill momentum, keeping fuel usage low.
Anticipating road topography prevents unnecessary engine strain and excessive fuel injection.

Key Concept

Impact of cruise control and terrain anticipation on fuel consumption
Estimated Time:45s
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Topics

Environmental Impact and Fuel Efficiency

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