Q.1
Which of the following will have the highest melting point?
Q.2
Water gas generator is made of
Q.3
Aqueous nitric acid is stored in
Q.4
Sulphur melting pit in the sulphuric acid plant is made of
Q.5
Maximum consumption of copper is in
Q.6
Corrosion involves exchange of electrons in __________ corrosion.
Q.7
Materials having __________ lattice structure are usually most ductile.
Q.8
The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.
Q.9
Which of the following is not an alloy of copper and tin?
Q.10
Thermosetting polymers are
Q.11
Tin coating is not done by
Q.12
Tin vessels are corroded by
Q.13
Ferric stainless steels compared to austenitic stainless steels
Q.14
Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with
Q.15
A measure of toughness of a material is its
Q.16
Telfon (PTFE) is corroded by
Q.17
Cast iron detachable joint is used in __________ pipes.
Q.18
Containers made of high silicon cast iron (14% Si) are not suitable for the storage of
Q.19
The softest material just next to talc in the Mhos scale is
Q.20
Lead lined equipments & vessels are suitable for handling
Q.21
'Semi steel' is
Q.22
Brass container is suitable for storing
Q.23
Hardening of steel is not possible unless it is heated __________ critical point.
Q.24
Vycor, a widely used material for making 'thermal wells' in temperature measurement, is a
Q.25
Electronic structure of a material is generally studied by
Q.26
__________ alloys have the highest specific strength of all the structural materials out of the following.
Q.27
Carbon supply in pack carburising process is in the form of
Q.28
Thermoplastic resins are those polymers, which
Q.29
Mild steel is a/an __________ steel.
Q.30
__________ is added in low carbon steel to raise its yield point.
Q.31
Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets.
Q.32
The digester of a Gobar gas plant is a
Q.33
The ability of a material to absorb energy in the elastic range is a measure of its
Q.34
Spark plugs are made of
Q.35
Which of the following commercial metals is most abundantly found in India?
Q.36
Maximum carbon content in cast iron is __________ percent.
Q.37
Babbit metals used for making bearings are
Q.38
Presence of manganese in alloy steel improves its
Q.39
As the impurities are oxidised, the melting point of iron
Q.40
Slow plastic deformation of metals under a constant stress is termed as __________ failure.
Q.41
Most common stainless steel type 316, which is highly resistant to corrosion contains
Q.42
Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system?
Q.43
Brass tubes are used in the manufacture of tubes of evaporators used in sugar and salt industries, mainly because of its
Q.44
Rotary kilns in cement industry are lined with____bricks.
Q.45
Out of the following, copper vessels are the most suitable for the storage of
Q.46
Stainless steel contains
Q.47
Glass lined vessels are not used for handling
Q.48
Thermosetting resins are those polymers, which
Q.49
Corrosion resistance of steel is increased by the addition of
Q.50
Tin in its pure form is used for making
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