Question

In an internal combustion engine, supercharging is the process of supplying intake air at a pressure

• A. higher than that of the ambient
• B. lower than that of the fuel
• C. higher than that of the fuel
• D. lower than that of the ambient

Hint:

Supercharging increases intake air pressure above ambient to improve engine performance by forcing more air into the cylinder.

Answer 1

The Correct Option is A

In an internal combustion engine, supercharging refers to the process of compressing the intake air and forcing it into the combustion chamber at a pressure higher than the ambient pressure. This process increases the amount of air available for combustion, leading to more fuel being burned, and thus improving the engine's power output. Step 1: Understand supercharging.
Supercharging increases the air pressure above ambient pressure to ensure a higher volume of air is injected into the engine cylinder. This improves the engine's efficiency and power.
Step 2: Analyze the options.
- (A) higher than that of the ambient: This is correct because supercharging increases the intake air pressure above the ambient air pressure.
- (B) lower than that of the fuel: Incorrect, as the intake air pressure is not related to fuel pressure in this context.
- (C) higher than that of the fuel: Incorrect, as the fuel pressure is not relevant to the supercharging process.
- (D) lower than that of the ambient: Incorrect, as supercharging requires the intake air pressure to be higher than the ambient pressure.
Thus, the correct answer is (A).