Question

What is the maximum pressure required to be given in a squeezing process?

(a) 6.5 kg(f)/cm^2

(b) 7.5 kg(f)/cm^2

(c) 8.5 kg(f)/cm^2

(d) 9.5 kg(f)/cm^2

The question was posed to me in a job interview.

The question is from Molding Machines in portion Foundry Mechanizations of Casting-Forming-Welding I

Answer 1

Correct option is (b) 7.5 kg(f)/cm^2

Explanation: A molding force is applied with the help of a piston in squeezing machines. This causes the air to get pressurized. This minimum pressure of the air can be 6 kg(f)/cm^2 and the maximum air pressure can be 7.5 kg(f)/cm^2.