Q. The metal suitable for bearings subjected to heavy loads, is

View solution

Q. The compressive strength of cast iron is __________ that of its tensile strength.

View solution

Q. When a steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

View solution

Q. Eutectoid reaction occurs at

View solution

Q. The addition of copper to aluminium possesses maximum strength after heat treatment and age-hardening

View solution

Q. Nickel when added to copper improves

View solution

Q. When filing or machining cast iron makes our hands black, then it shows that __________ is present in cast iron.

View solution

Q. According to Indian standard specifications, a plain carbon steel designated by 40 C8 means that the carbon content is

View solution

Q. Wrought iron

View solution

Q. In iron, the presence of carbon in free form is called graphite.

View solution

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