Cast iron compared to steel is better in
Graphite is corroded by
__________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working.
Cast iron vessels are not suitable for the storage of
Cast iron is a __________ material.
Maximum consumption of lead is in the manufacture of
To improve the machinability of steel by its softening, it is subjected to
Which one has the maximum tensile strength out of the following ?
Maximum carbon content in cast iron is __________ percent.
A material capable of undergoing large permanent deformation, when subjected to tension is termed as
Hardened steel is softened by
Which of the following is not shipped in mild steel containers ?
__________ does not contain copper as an alloying element,
Rubber lined vessels are corroded by the action of
Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines ?
Combination of metals and ceramics are called
Plasticisers are added to polymers to improve their
Carbon is present in the uncombined (graphitic) form in case of
Which of the following metals in not used for coating of the base metal to guard it against corrosion ?
Brass container is suitable for storing
The material of construction of bearings is
Condenser tubes are not made of
Tin in its pure form is used for making
Hydrocyanic acid is not shipped in
Clock pendulums are usually made of __________ steel.
Material of construction of pipe generally used for conveying water in India is
Manganese in steel affects its
Lead lined equipments & vessels are suitable for handling
Bell metal is an alloy of
Mercury is transported in metal containers made of
Reactor used in the production of polyvinyl chloride (PVC) is made of
__________ is added in low carbon steel to raise its yield point.
__________ iron is produced, when molten pig iron is chilled suddenly.
Polymerisation reactor used in the production of styrene butadiene rubber (SBR) is made of
Among the tin containing alloys, __________ consumes the maximum amount of tin.
How many molecules per unit cell are there in a face centred cubic lettice ?
In cold working of metal as compared to its hot working
'Age hardening' of duralumin is due to
Aqueous nitric acid is stored in __________ vessel.
Wrought iron is a suitable material of construction for handling __________ solutions.
Addition of __________ in steel is helpful in increasing the depth of hardness.
Spark plugs are made of
Which of the following is produced by addition polymerisation ?
Which of the following is the softest material ?
Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%?
Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with
The hardest material just prior to diamond in Mhos scale is
Which of the following comprises of hydrocarbons ?
Nickel base alloys with __________ are known as monel metal.
__________ is a donor impurity for semi-conductors.