Q. In a body centred cubic space lattice, there are nine atoms out of which eight atoms are located at the corners of the cube and one atom at its centre.

View solution

Q. The bond formed by transferring electrons from one atom to another is called

View solution

Q. German silver contains

View solution

Q. Connecting rod is, usually, made from

View solution

Q. Which of the following inpurity in cast iron makes it hard and brittle?

View solution

Q. When a low carbon steel is heated upto lower critical temperature,

View solution

Q. Grey cast iron is __________ than white cast iron.

View solution

Q. Corrosion resistance of steel is increased by adding nickel and chromium.

View solution

Q. The silicon steel is widely used for

View solution

Q. Ball bearings are, usually, made from

View solution

Q. There are fourteen atoms in a unit cell of

View solution

Q. The maximum internal diameter of a blast furnace is about

View solution

Q. In spheroidising process, the steel is

View solution

Q. Pearlite is a combination of 87% ferrite and 13% cementite.

View solution

Q. The percentage carbon content in wrought iron is about

View solution

Q. In the lower part of the blast furnace (zone of fusion), the temperature is

View solution

Q. Which of the following impurity in cast iron promotes graphite nodule formation and increases the fluidity of the molten metal?

View solution

Q. Which of the following statement is wrong?

View solution

Q. Inconel contains

View solution

Q. In a hardening process, the hypo-eutectoid steel is

View solution