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Q:

Which of the following statement about stuffing box (in a reciprocating steam engine) is TRUE?

A) Stuffing box is the casing which engine assembly is placed B) Stuffing box guides the crank shaft
C) Stuffing box provides a steam-tight hole for the piston rod to pass through, to prevent steam leakage D) Stuffing box serves no purpose during engine operation
 
Answer & Explanation Answer: C) Stuffing box provides a steam-tight hole for the piston rod to pass through, to prevent steam leakage

Explanation: Piston rod passes through the crank end of the cylinder, at this end the piston rod must pass through a steam-tight hole, to prevent leakage of steam. Stuffing box does this job. The piston passes through the steam-tight hole in stuffing box, ensuring that no steam is leaked.

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Category: Mechanical Engineering MCQs
Sub Category: Thermal Engineering Mcqs

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