Q. White cast iron as compared to grey cast iron is

View solution

Q. Combination of metals and ceramics are called

View solution

Q. __________ iron is produced, when molten pig iron is chilled suddenly.

View solution

Q. Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%?

View solution

Q. Vycor, a widely used material for making 'thermal wells' in temperature measurement, is a

View solution

Q. Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about

View solution

Q. Ball bearings are generally made of

View solution

Q. Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making

View solution

Q. Which is the purest form of iron ?

View solution

Q. Visco-elastic behaviour of materials which is time dependent is common in

View solution

Q. Which of the following is not an alloy of copper ?

View solution

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

View solution

Q. As the impurities are oxidised, the melting point of iron

View solution

Q. In a plate type heat exchanger, heat transfer plates are never made of

View solution

Q. Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower

View solution

Q. Metal at the top of the electromotive series is

View solution

Q. Fatigue failure of a material may occur, when it is subjected to __________ stress.

View solution

Q. Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously.

View solution

Q. High speed steel should have high

View solution

Q. __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working.

View solution