Q.1
Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)
Q.2
Nickel and copper are the basic constituents of
Q.3
Nickel and molybdenum are the basic constituents of
Q.4
Nickel as a material of construction
Q.5
Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property?
Q.6
An alloy used as thermocouple material comprises of 40% nickel and 60% copper. It is called
Q.7
Brinell Hardness Number (BHN) for talc is approximately in the range of
Q.8
Dies for wire drawing are generally made of
Q.9
High resistance electrical heating elements/wire are not made of
Q.10
White cast iron as compared to grey cast iron is
Q.11
Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower
Q.12
Inconel is an alloy of
Q.13
Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the __________ stress.
Q.14
Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals)?
Q.15
In drop forging process, the forging is done by dropping the __________ at high velocity.
Q.16
Most of the common metals have __________ crystal structure.
Q.17
Soap kettle used in the production of laundry soap is made of
Q.18
In the Kraft process of sulphate paper pulp manufacture, the black liquor and the white liquor storage tank is made of
Q.19
Cast iron is a __________ material.
Q.20
Shock resisting steels should possess high
Q.21
When the steel is subjected to normalising, its __________ decreases.
Q.22
Molybdenum steels containing 0.15 to 0.40% molybdenum
Q.23
The increase in hardness of metal due to its cold working is termed as the __________ hardening.
Q.24
Rubber lined vessels are corroded by the action of
Q.25
Pick out the wrong statement.
Q.26
Carbon is present in the combined form (carbide) in case of
Q.27
Hastelloy comprises of
Q.28
Reduction in the grain size reduces the __________ of the material.
Q.29
The 'bomb' in the bomb calorimeter is made of
Q.30
Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. It is
Q.31
Liners of a ball mill are never made of
Q.32
Which is an amorphous material?
Q.33
Pick out the correct statement.
Q.34
Plate and frame filter press is usually made of
Q.35
Sheardising process is used for
Q.36
Very high sulphur in pig iron makes
Q.37
Which of the following crystal structures characterises the ferritic stainless steel?
Q.38
__________ is used for determining the tensile strength of steels.
Q.39
High speed steel should have high
Q.40
High carbon steel contains more than __________ percent carbon.
Q.41
Which of the following has the least value of ultimate tensile strength (UTS)?
Q.42
Maximum consumption of zinc is in
Q.43
Which of the following is the lightest of engineering metals?
Q.44
Glass is corroded by
Q.45
Fatigue strength of a material increases by
Q.46
Which of the following alloy steels is the most suitable for making gun barrels and projectiles?
Q.47
Which of the following has the highest compressive strength?
Q.48
The range of Mho's scale of hardness is from
Q.49
Purity of electrical grade aluminium should be ≥ __________ percent.
Q.50
Which of the following exercises most powerful influence on the mechanical properties of steel?
0 h : 0 m : 1 s