Consider the following features of newer models of motor cars:1. Radial tyres2. Streamlined body 3. Multipoint fuel injection4. Catalytic converter with exhaust Which of these features make the new models of motor cars more fuel efficient?
✓ Correct answer: b) 2 and 3
ExplanationOption 1 is incorrect: While radial tyres improve handling and durability, they primarily reduce rolling resistance, which can have a minor impact on fuel efficiency.However, their primary benefit is not directly linked to significant fuel savings.Option 2 is correct: A streamlined body reduces aerodynamic drag, allowing the car to move more efficiently through the air.This directly improves fuel efficiency, especially at higher speeds.An example of a car with a streamlined body is the Tesla Model S. Its sleek, aerodynamic design minimizes air resistance, improving both fuel efficiency (or energy efficiency in the case of electric cars) and performance.Option 3 is correct: Multipoint Fuel Injection ensures that the right amount of fuel is injected into each cylinder, improving combustion efficiency and reducing fuel consumption.Option 4 is incorrect: While a catalytic converter reduces harmful emissions, it does not directly affect fuel efficiency.Its primary function is to convert toxic gases like carbon monoxide into less harmful substances.Direction: The following item con
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