Q. Why aluminum alloy pistons need more clearance?

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Q. Why cast iron was used in pistons earlier?

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Q. Which are the two types of piston head?

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Q. Piston thickness depends on what criteria?

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Q. Which are the two criteria for calculating the thickness of the piston head?

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Q. Which of the mentioned below is the Grashoff’s formula?

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Q. Which of the mentioned below is the Held and favary for the thickness of the piston head?

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Q. Which of the mentioned below is used to calculate the thickness of the piston head based on heat dissipation?

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Q. Bore diameter is 150 mm, calculate the thickness based on Held and favary formula?

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Q. Calculate the amount of heat conducted through piston head, when C=0.05, HCV=47×10³ KJ/Kg, m=0.25 Kg/Kw/s, BP=8W?

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Q. Calculate the thickness of the piston head based on head dissipation, given H= 5398.82, k= 46.8, (Tc-Te)= 200?

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Q. Calculate the thickness of the piston head by strength criteria, given D= 250 mm, Pmax= 3MPa, σb= 43 N/mm².

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Q. In the formula th=D\(\sqrt{\frac{3}{16}\frac{P_{max}}{\sigma_b}}\), what is the unit σb?

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Q. Why piston ribs are provided in the piston?

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Q. Ribs transmit heat from ______ to piston rings.

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Q. The side thrust is created by which component of the engine?

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Q. The side thrust is transmitted to the cylinder wall through which portion of the piston?

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Q. Find the range of thickness of the ribs when the thickness of the piston head is 8 mm?

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Q. Find the radius of the cup, when the bore diameter is 150 mm?

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Q. The additional space provided on the piston head is also known as______

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