When is clutch slippage particularly noticeable?

• A. During idling
• B. At low speed
• C. During acceleration
• D. During braking

Answer: (C)

Clutch slippage is particularly noticeable during acceleration because this is when the engine’s power is being transmitted to the wheels most forcefully. When the driver accelerates, the demand for power increases, and if the clutch is not fully engaged, it will struggle to transfer that power effectively, causing slippage. This results in high engine revs without a corresponding increase in vehicle speed, which manifests as a delay in acceleration or a feeling that the engine is revving higher than it should be relative to the car's speed.

In this scenario, the difference between the engine speed and the output speed indicates that the clutch is not fully gripping, leading to a loss of power transfer that is easily detected by the driver. Therefore, acceleration is a critical moment where clutch performance is vital, and any signs of slippage will be more pronounced.