Q. What is the function of the oil ring?

View solution

Q. Piston rings are usually made of which material?

View solution

Q. Usually how many piston rings are present in a petrol engine?

View solution

Q. The compression rings have which cross-section?

View solution

Q. In the formula b= D\(\sqrt{\frac{3P_w}{\sigma_t}}\), what is the unit of Pw?

View solution

Q. Find the range of axial thickness of the piston ring, when b= 7.5 mm?

View solution

Q. Find the limit on the minimum axial thickness when D=150 mm and Z=7?

View solution

Q. Find the Radial width of the piston ring, when D= 250 mm, σt= 100MPa, and pw= 0.03 N/mm²?

View solution

Q. Where can we see the piston barrel in the piston?

View solution

Q. Which of the mentioned below is the formula for calculating the thickness of the piston barrel at the top end?

View solution

Q. In the formula t₃=(0.03D+b+4.9) what is the unit of b?

View solution

Q. Calculate the thickness of the piston barrel at the top end, when D= 80 mm and b= 7.5 mm?

View solution

Q. Calculate the thickness of the piston barrel at the lower end when t₃=13 mm?

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Maximum side thrust is experienced during which stroke?

View solution