Soru

Zorluk: KolayEnvironmental Impact and Fuel Efficiency

Drivers can reduce their vehicle's environmental impact through sensible driving habits and routine checks. Match each vehicle condition or driving habit to its direct consequence on fuel efficiency and emissions.

  • Carrying unnecessary heavy clutter in the bootIncreases vehicle mass, requiring more energy to accelerate
  • Driving with under-inflated tyresIncreases rolling resistance against the road surface, burning extra fuel
  • Leaving the engine running while parked for a long periodCauses unnecessary exhaust emissions and wastes fuel while stationary
  • Driving at speed in an unnecessarily low gearForces the engine to work at unnecessarily high RPM, consuming excess fuel

Cevap

Carrying heavy clutter matches increasing vehicle mass; under-inflated tyres matches increasing rolling resistance; idling when parked matches producing emissions while stationary; driving in a low gear matches running the engine at high RPM.
Each habit or condition directly corresponds to a specific physical cause of inefficiency: extra weight requires more engine work to move; under-inflation raises rolling resistance; engine idling burns fuel at zero miles per gallon; and low gear selection keeps engine revs wastefully high.

Adım Adım Çözüm

1
Identify the physical or mechanical effect of carrying excess weight.
Excess weight increases vehicle mass, requiring extra energy to get moving and accelerate.
Mass directly affects acceleration resistance.
2
Identify the physical effect of low tyre pressure.
Low pressure increases rolling resistance between the rubber and the road.
Correct tyre pressures maintain optimal contact shape and minimal resistance.
3
Identify the effect of engine idling while stationary.
It wastes fuel and generates localized tailpipe pollution without producing any travel distance.
An engine that is running without moving achieves zero miles per gallon.
4
Identify the mechanical consequence of improper gear selection.
Staying in a low gear forces higher engine revolutions per minute (RPM) at a given road speed.
Higher engine RPM results in more fuel intake cycles per minute.

Anahtar Kavram

Eco-safe driving habits and basic vehicle condition factors directly influence fuel economy and pollutant emissions.
Tahmini Süre:45s
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