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Assess each of the following statements concerning a brake booster on a vehicle with a diesel engine: ) The diesel engine operates with a surplus of air (no throttle plate to create vacuum). Therefore the master cylinder operates at a positive pressure. The brake booster is connected to the intake manifold. On a diesel engine, the brake booster is connected to a vacuum pump.
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Let's assess each statement concerning a brake booster on a vehicle with a diesel engine:1. **The diesel engine operates with a surplus of air (no throttle plate to create vacuum). Therefore, the master cylinder operates at a positive pressure.** - This statement is **incorrect**. Diesel engines do not use a throttle plate to create a vacuum, but this does not mean the master cylinder operates at a positive pressure. Instead, diesel engines typically use a vacuum pump to provide the necessary vacuum for the brake booster. The master cylinder still operates under vacuum pressure, not positive pressure.2. **The brake booster is connected to the intake manifold.** - This statement is **incorrect**. In vehicles with diesel engines, the brake booster is not connected to the intake manifold. Instead, it is connected to a vacuum pump, which is a separate component specifically designed to provide the vacuum needed for the brake booster.3. **On a diesel engine, the brake booster is connected to a vacuum pump.** - This statement is **correct**. Diesel engines often use a vacuum pump to supply the vacuum required for the brake booster. This vacuum pump is separate from the engine's intake manifold and is dedicated to the brake booster system.In summary:- The first statement is incorrect.- The second statement is incorrect.- The third statement is correct.