Q. In connection with corrosion of metals, passivation is the process that

View solution

Q. With increase in impurities in metals, their corrosion resistances

View solution

Q. Most important property of steels for use in automobile bodies is the

View solution

Q. Consideration of the creep is the most important in case of the

View solution

Q. The trace metal present in insulin is

View solution

Q. Cold cracking in the heat affected zone of a high strength steel weld can take place because of the

View solution

Q. Drossing is a __________ operation.

View solution

Q. Most of the phosphorous present in the blast furnace burden enters into

View solution

Q. During sensible heating of humid air

View solution

Q. Photographic plates are coated with

View solution

Q. Hardening of steel is not possible, unless it is heated __________ critical point.

View solution

Q. Isotropic materials have the same __________ in all directions.

View solution

Q. The most important requirement for aluminium industry is the availability of cheap

View solution

Q. Spheriodising of a material is a/an __________ process.

View solution

Q. Iron content in Indian iron ore is about __________ percent.

View solution

Q. The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is

View solution

Q. __________ of hard alloy and tool steel is done to make it easily machinable.

View solution

Q. Which of the following mainly decides the current to be employed is arc welding ?

View solution

Q. Temperature attained in soldering of metals is about __________ °C.

View solution

Q. Dielectric

View solution