The hardest material just prior to diamond in Mhos scale is_________________?

Related Mcqs:

Bearings subjected to light load are made of________________?

A. White metal B. Phosphorous bronze C. Monel D. Silicon bronze...

Post weld heat treatment is done by____________________?

A. Normalising B. Stress relieving C. Tempering D. Solution annealing...

Aqueous nitric acid is stored in ______________ vessel?

A. Plain carbon steel B. Stainless steel C. Cast iron D. Thermosetting plastic material...

Which of the following is the most prone to atmospheric corrosion ?

A. Silver B. Iron C. Tin D. Copper...

Liners of a ball mill are never made of__________________?

A. Lead B. Alloy steel C. Rubber or ceramic material D. Cast iron...