Question 133Motor Plants - QMED70% to pass
The highest pressure in a diesel engine cylinder normally occurs _______________.
AI Explanation
The correct answer is C) after TDC (top dead center).
In a diesel engine, the highest pressure in the cylinder typically occurs after the piston reaches TDC during the compression stroke. This is because the air-fuel mixture is compressed, causing the temperature and pressure to rise rapidly, reaching a peak just after the piston passes TDC. The other answer choices are incorrect - the pressure does not peak at TDC (A), before TDC (B), or during air starting (D), which refers to the process of starting the engine using compressed air rather than the normal combustion process.
Related Questions
#131 The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing work. This is known as_______________. #132 Which of the following relationships exist between the temperature developed in a combustion space, and the compression ratio of the engine? #134 Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine? #135 In the starting process of a diesel engine, the main object is to attain the compression conditions sufficient to_______________.#136 Diesel engines are classified as reciprocating internal combustion engines because they_______________.