Q. Which type of piston rings are preferred in an engine?

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Q. What is the gap between the free ends of the ring before assembly when b= 6 mm?

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Q. What is the gap between the free ends of the ring after assembly when D=80 mm?

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Q. Calculate the distance from the top of the piston to the first ring grove when th=7 mm?

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Q. Calculate the width of the ring groove when h=5 mm?

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Q. Which portion of the piston is known as a skirt?

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Q. Maximum side thrust is experienced during which stroke?

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Q. Which of the mentioned below is the formula for calculating side thrust considering coefficient of friction?

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Q. Which of the mentioned below is the formula for calculating side thrust considering stroke length?

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Q. In the formula Side thrust=μ\((\frac{\pi D^2}{4})\)Pmax , what is the unit of Pmax?

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Q. In the formula Side thrust=PbDLₛ , what is the unit of lₛ?

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Q. Calculate the side thrust when μ= 0.1, D=85 mm and Pmax= 4 N/mm²?

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Q. Calculate the stroke length when side thrust is 19634.95 N/mm², Pb=0.4 N/mm² and D=250 mm?

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Q. Calculate the empirical relationship for the length of the skirt when D=80 mm?

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Q. Calculate the empirical relationship for the length of the piston when D=80 mm?

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Q. What is the function of the piston pin?

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Q. Piston pin is having which cross-section?

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Q. Piston pin passes through which part of the piston?

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Q. The end movement of the piston pin is restricted by which component?

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Q. Calculate the resisting force when (Pb)l=5 N/mm², d₀ =110 mm, l₁=67?

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