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Materials and Construction Quiz 8

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Materials and Construction Quiz 8

1 / 50

Tempering of steel is done to make it__________?

2 / 50

The most distinguished property of malleable cast iron is its high__________?

3 / 50

The ?bomb? in the bomb calorimeter is made of_____?

4 / 50

The softest material just next to talc in the Mho?s scale is_____?

5 / 50

The impure iron (pig iron) that is tapped out from blast furnace contains about ______ percent carbon?

6 / 50

The main constituent of carborundum is _____ carbide?

7 / 50

The material used in the filament of electric bulbs is__________?

8 / 50

The process of heating the cold pressed metallic powder is called _______ in powder metallurgy?

9 / 50

The presence of impurities in iron__________?

10 / 50

The chlorinator used in the manufacture of DDT is made of_____?

11 / 50

The process of coating steel sheets by zinc to improve its corrosion resistance is called_____?

12 / 50

The electrical conductivity of a _______ decreases with rise in temperature?

13 / 50

The malleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the maximum malleability ?

14 / 50

The behaviour of visco-elastic material is time dependent. This behaviour is common in ______ materials?

15 / 50

The heat treatment process to which castings and the steel balls produced by cold heading are subjected is______?

16 / 50

The temperature at which new grains are formed in the metal is called the _______ temperature?

17 / 50

The heat treatment process applied to cold formed steel parts is ______?

18 / 50

The fermenter used for the production of ethyl alcohol from molasses is made of_________?

19 / 50

The hardest material just prior to diamond in Mhos scale is__________?

20 / 50

The ability of a material to offer resistance to scratching or indentation is a measure of its__________?

21 / 50

The phenomenon in which slow extension of material takes place with the time at constant load is called_________?

22 / 50

Thermometer bulb & capillary in case of mercury filled pressure spring expansion thermometer is normally made of _______ as mercury does not amalgamate with it?

23 / 50

Thermosetting polymers are__________?

24 / 50

The range of Mho?s scale of hardness is from_________?

25 / 50

The material of construction of bearings is___________?

26 / 50

The ability of a material to absorb energy in the elastic range is a measure of its ___________?

27 / 50

The main purpose of galvanising iron sheets is to_____?

28 / 50

The specific gravity of coal depends mainly on its _______ content?

29 / 50

The high expansion metal normally used in the bimetallic thermometer is ________ temperature measurement?

30 / 50

The material of construction of pressure mills used for squeezing out the juice from sugar cane is___________?

31 / 50

The damage/deterioration of metals by the _______ action of fluids is called ?erosion??

32 / 50

The carbonating tower used in Solvay process of soda ash manufacture is made of__________?

33 / 50

The increase in hardness of metal due to its cold working is termed as the ________ hardening?

34 / 50

The hardest material just prior to diamond in Mho?s scale is_____?

35 / 50

The digester of a Gobar gas plant is a_____?

36 / 50

Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of_____?

37 / 50

The maximum percentage of chromium that can be added to steel is about______?

38 / 50

The most commonly used resin for making reinforced plastic is_____?

39 / 50

The softest material in Mho?s scale (for measuring hardness) is_________?

40 / 50

The metals occuring at the lower most position in the electromotive series______?

41 / 50

The softest material just next to talc in the Mhos scale is__________?

42 / 50

The most resistant material to alkaline corrosion is______?

43 / 50

The crystal structure of most of the common metals is_______?

44 / 50

The preferred material of construction for storage tanks for 98% sulphuric acid is__________?

45 / 50

Thermoplastic resins are those polymers, which______?

46 / 50

The purpose of nitriding the steel is to_____?

47 / 50

The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called___________?

48 / 50

The addition of antimony in tin-based alloys improves its_________?

49 / 50

The fermenter used in the production of penicillin (by deep fermentation process) is made of_____?

50 / 50

The formation of oxide film on a metal due to atmospheric exposure reduces its_____?

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