Question

Technician A says that a gasoline engine is designed to operate at near or maximum speed for long periods without damage. Technician B says that a diesel engine is designed to operate at near or maximum speed for long periods without damage. Who is correct?

A. Technician A
B. Technician B
C. Both A and B
D. Neither A nor B

Answer 1

Technician B is correct. Diesel engines are designed for long periods of near or maximum speed operation due to their robust construction and higher compression ratio compared to gasoline engines.

Step-by-step explanation:

Technician B is correct. Diesel engines are designed to operate at near or maximum speed for long periods without damage due to their robust construction and higher compression ratio compared to gasoline engines.

The diesel combustion process is based on compression ignition, where the air in the cylinder is compressed adiabatically to a high temperature, allowing the fuel to ignite without a spark plug.

This design allows diesel engines to withstand the higher stress and heat generated during continuous high-speed operation. On the other hand, gasoline engines are typically not designed for long periods of near or maximum speed operation, as this can lead to overheating and potential damage to the engine components.