मार्टेम्परिंग (Martempering) ऊष्मा उपचार प्रक्रिया को _______ के रूप में भी जाना जाता है।

Match the following alloying elements with their effects on the properties of steel: A. Copper - (iii) Improves corrosion resistance but reduces ductility B. Nickel - (i) Improves impact toughness and cold brittle tendency C. Manganese - (iv) Increases strength but reduces weldability D. Aluminium - (ii) Increases strength Select the correct match:

Which of the following is NOT classified as a fundamental engineering property category of materials?

Which of the following is NOT an objective or function of alloying steel?

Mild steel belongs to which category of steel based on carbon content?

Which of the following characteristics of composites refers to their ability to resist deformation under applied load?

The number of yield points observed in 'yield-point runout' behaviour in low carbon steel is ______.

In material science, a dislocation is classified as which type of crystal defect?

What is the shape and included angle of the indenter used in the Vickers hardness test?