Q. Which of the following gives the correct order of increasing hot hardness of cutting tool materials?

View solution

Q. The slag from the blast furnace

View solution

Q. Which of the following is a mesomorphous material?

View solution

Q. In the middle part of the blast furnace (zone of absorption), the temperature is

View solution

Q. The temperature in the upper part of the blast furnace (zone of reduction) is __________ that of the middle part.

View solution

Q. The temperature point at which the change starts on heating the steel is called

View solution

Q. Aluminium bronze has high resistance to corrosion.

View solution

Q. Manganese bronze contains more copper than silicon bronze.

View solution

Q. In a face centred cubic space lattice, there are

View solution

Q. The fuel used in a blast furnace is

View solution

Q. Face centred cubic space lattice is found in gamma-iron, aluminium, copper, lead, silver and nickel.

View solution

Q. Which of the following is a point imperfection?

View solution

Q. The process in which carbon and nitrogen both are absorbed by the metal surface to get it hardened is known as

View solution

Q. The malleability is the property of a material by virtue of which a material

View solution

Q. Which of the following statement is wrong?

View solution

Q. Duplex process of steel making is a combination of

View solution

Q. In corrosion resistant properties, bronzes are __________ to brasses.

View solution

Q. Steel containing 0.8 to 1.5% carbon, is known as

View solution

Q. Brittle materials when subjected to tensile loads, snap off without giving any sensible elongation.

View solution

Q. The property of a material necessary for forgings, in stamping images on coins and in ornamental work, is

View solution