Petrol is used as a fuel in light automobiles such as motorcycles, scooters and cars while heavy vehicles like trucks and tractors run on

Options

A. diesel
B. fuel oil
C. lubricating oil
D. petroleum gas.

Explanation

**Step-by-Step Solution:**

1. **Identify the Types of Vehicles:**
- Light automobiles include motorcycles, scooters, and cars.
- Heavy vehicles include trucks and tractors.

2. **Understand the Fuel Types:**
- Light automobiles primarily use petrol as their fuel.
- Heavy vehicles like trucks and tractors require a different type of fuel.

3. **Determine the Fuel for Heavy Vehicles:**
- Heavy vehicles need a fuel that can provide high torque at low speeds. This is essential for carrying heavy loads effectively.
- The fuel commonly used for heavy vehicles is diesel.

4. **Explain the Reasoning:**
- Diesel engines are designed to provide higher torque compared to petrol engines. This makes them more suitable for heavy-duty applications where power and efficiency are crucial.

5. **Conclusion:**
- Therefore, while petrol is used in light automobiles, heavy vehicles like trucks and tractors run on diesel.

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