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Materials and Construction

Materials and Construction
The softest material in Mho's scale (for measuring hardness) is

Gypsum
Rubber
None of these
Talc

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Materials and Construction
Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.

0.5
0.02
0.2
0.35

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Materials and Construction
Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making

Shafts
Flanges
Shear blades
Gears

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Materials and Construction
Steel balls for ball bearings are generally made of __________ steel.

Free carbon
Carbon chrome
Stainless
Cast

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Materials and Construction
Concrete tank can be used to store

Alum
Saturated brine
Ferrous sulphate
Sulphuric acid

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Materials and Construction
Carbon content in steel is __________ percent.

0.001-0.01
43865
43927
0.1-2

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