Q. How many atoms are there per unit cell in a body centred cubic lattice system ?

View solution

Q. Post weld heat treatment is done by

View solution

Q. __________ is a donor impurity for semi-conductors.

View solution

Q. 'Age hardening' of duralumin is due to

View solution

Q. Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines ?

View solution

Q. The presence of impurities in iron

View solution

Q. German silver is an alloy of copper, nickel and

View solution

Q. Monel metal is an alloy of

View solution

Q. Acetaldehyde is shipped in __________ drums.

View solution

Q. The softest material in Mho's scale (for measuring hardness) is

View solution

Q. Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of

View solution

Q. Plasticisers are added to polymers to improve their

View solution

Q. The damage/deterioration of metals by the __________ action of fluids is called 'erosion'.

View solution

Q. The hardest material just prior to diamond in Mhos scale is

View solution

Q. Among the tin containing alloys, __________ consumes the maximum amount of tin.

View solution

Q. Carbon is present in the uncombined (graphitic) form in case of

View solution

Q. Graphite is corroded by

View solution

Q. Rubber lined vessels are corroded by the action of

View solution

Q. Polymorphism is not exhibited by

View solution

Q. Steel pipes are normally manufactured by __________ process.

View solution