Question 140Motor Plants - QMED70% to pass
An operating diesel engine that suddenly loses power, is due to a/an_______________.
AI Explanation
The correct answer is A) restricted turbocharger air intake.
The reasoning is that a diesel engine relies on a steady supply of air to the turbocharger in order to maintain sufficient power output. If the air intake to the turbocharger becomes restricted, the engine will lose power due to the reduced air supply. This is a common failure mode for diesel engines.
The other answer choices are incorrect because they do not directly result in a sudden loss of engine power. An oil leak into the turbocharger (B) may cause damage over time but would not lead to an immediate power loss. A dribbling injector (C) or low fuel viscosity (D) would affect fuel delivery but not the air supply to the engine.
Related Questions
#138 Which of the following conditions is indicated by the presence of water in the scavenging air receiver? #139 The power output of a turbocharged diesel engine will drop if the cooling water flow through the aftercooler is interrupted because the _______________.#141 A sudden power loss from a turbocharged and aftercooled diesel engine is an indication of a/an _______________.#142 Maintaining the lowest possible scavenging air temperature at all times is not recommended due to the possibility of the _______________.#143 The highest pressure in any closed diesel engine fresh water cooling system is at the _______________.