Q.1
Which of the following is the easiest to bend?
Q.2
Iron rust is
Q.3
Which of the following is a low melting point metal?
Q.4
Which of the following is the most elastic material?
Q.5
Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about
Q.6
High degree of toughness is a must for
Q.7
Concrete tank can be used to store
Q.8
The softest material in Mho's scale (for measuring hardness) is
Q.9
Lead
Q.10
Addition of 2% nickel in steel makes it suitable for making
Q.11
Mild steel storage vessels are suitable for the storage of
Q.12
In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of
Q.13
Presence of nitrogen in steel
Q.14
Presence of silicon in steel
Q.15
Carbon is present in steel wholly in the
Q.16
Visco-elastic behaviour of materials which is time dependent is common in
Q.17
Nickel (76%) and chromium (15%) alloys are termed as
Q.18
Nitriding of steel is done (in electric furnace) at __________ °C.
Q.19
Steel rods are used in reinforced concrete to increase its __________ strength.
Q.20
Addition of __________ in steel can help in increasing the depth of hardness.
Q.21
Molten phthalic anhydride is stored in a/an __________ vessel.
Q.22
Hastelloy C is a good material of construction in chemical process industry, since it is
Q.23
Spray dryer for evaporating milk to produce milk powder is made of
Q.24
Ability of a material to absorb energy in deformation in the plastic range is characterised as its
Q.25
Evaporator used for concentrating tomato juice is made of
Q.26
Pure nickel is
Q.27
Aluminium alloy is one of the most suitable materials of construction for aircrafts mainly due to its
Q.28
Babbit metal used for bearings is a____base alloy.
Q.29
Ceramic recuperators are generally made of
Q.30
'Hypersil' is a __________ steel.
Q.31
Which of the following alloying elements is present in maximum percentage in high speed steel.
Q.32
Hardest material so far found is
Q.33
A hardness depth of about 3 mm can be achieved by induction hardness in __________ seconds.
Q.34
The most commonly used resin for making reinforced plastic is
Q.35
The hardest material just prior to diamond in Mho's scale is
Q.36
Perspex is nothing but
Q.37
Phenol is not shipped in
Q.38
Pick out the wrong statement.
Q.39
Plastics are
Q.40
Invar used in thermocouples is an alloy of nickel and
Q.41
The hardest material just prior to diamond in Mhos scale is
Q.42
Dip stick used for measuring the level of petro fuels (e.g. petrol, diesel, fuel oil etc.) in the storage tank is usually made of
Q.43
Liquid ammonia is shipped in __________ containers.
Q.44
Which of the following is not a copper based alloy with nickel?
Q.45
The presence of impurities in iron
Q.46
The process of coating steel sheets by zinc to improve its corrosion resistance is called
Q.47
The main constituent of carborundum is __________ carbide.
Q.48
Bronze is an alloy of copper and
Q.49
Material of construction of pipe generally used for conveying water in India is
Q.50
Wrought iron is having very high
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