Application for Mechanical Engineer

When measuring the flow of liquid what are the two things to measure?

In which industrial process you will use centrifugal separator?

If any machinery or transmission needs periodic and regular lubrication what is the best method to give it?

Oil melts, grease melts. Is there any other lubrication which is effect at 200 deg c?

What is a torque converter?

Instead of having individual transmission what is the benefit of unified transmission?

What are the different types of mechanism to engage primary moving engine and transmission (in other words how many different types of clutches are there)?

In order to ensure constant pressure and constant flow rate of compressed air what should we put between the compressor and end user?

What can be the reasons for a metal gasket to leak?

The old welding machines used electromagnetic winding to step up the current for welding rods. What is the new principle inside the welding machines?