What is the difference between pipe and a tube?

Explain the term torque

What do you mean by emissive power?

 Define coal

Differentiate between total moisture and inherent moisture of coal.

What does AFBC stand for?

What are the benefits of cycloidal gears?

 Briefly explain the term Gravity

Why is cast iron seasoning important before machining?

 What do you understand by heat treatment?

How can you identify mild steel, cast iron, and high carbon steel?