Question 5Motor Plants - QMED70% to pass
The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually _______________.
AI Explanation
The correct answer is A) greater than the average exhaust manifold pressure.
In a turbocharged diesel engine, the turbocharger uses the exhaust gases to drive a turbine, which in turn drives a compressor. This compressor increases the pressure in the intake manifold, resulting in a higher air pressure compared to the average exhaust manifold pressure. This increased air pressure helps to improve the engine's volumetric efficiency and power output.
The other options are incorrect because: B) the intake manifold pressure is actually greater than the exhaust manifold pressure, C) the pressure is greater at the impeller than at the turbine wheel, and D) the pressure is greater at all engine speeds, not just reduced speeds.
Related Questions
#3 Which of the listed types of superchargers will NOT have a volumetric capacity proportional to engine speed? #4 The process of supplying a diesel engine cylinder with air at a pressure greater than atmospheric is called _______________.#6 According to the illustrated main engine cooling water systems drawing, which of the labeled heat exchangers represents the charge air coolers? Illustration MO-0111 #7 Aftercooling of a turbocharged diesel engine will result in _______________.#8 Forcing the exhaust gases from the cylinder of an operating two-cycle diesel engine with the aid of a blower is known as _______________.