MDE 4 Q5

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Question: What is the primary purpose of the thrust bearing in the construction of a diesel engine turbocharger?

B) To absorb and manage the axial forces generated by the high-speed rotation of the turbocharger shaft

D) To increase the intake air pressure before it reaches the engine cylinders

A) To support the radial load of the rotating components and reduce friction

C) To cool the turbocharger by directing airflow through the bearing housing

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Question: What is the primary purpose of the inducer in the construction of a diesel engine turbocharger?

D) To enhance the flow of lubricating oil to the turbocharger bearings

B) To draw in and compress the intake air before it enters the compressor wheel

A) To direct the exhaust gases onto the turbine wheel for efficient energy extraction

C) To increase the temperature of the intake air for better combustion

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Question: What is the primary purpose of the diffuser in the construction of a diesel engine turbocharger?

A) To increase the temperature of the compressed air before it enters the intake manifold

D) To filter out impurities from the intake air before it reaches the compressor

B) To reduce the pressure of the exhaust gases before they reach the turbine wheel

C) To slow down the high-velocity air exiting the compressor and convert kinetic energy into increased pressure

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Question: What is the primary purpose of labyrinth glands in the construction of a diesel engine turbocharger?

C) To cool the turbocharger by circulating coolant around the bearings

A) To provide additional lubrication to the turbocharger bearings

B) To prevent the leakage of lubricating oil and seal the gap between the rotating shaft and stationary components

D) To increase the intake air pressure before it reaches the compressor wheel

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