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Materials and Construction

Materials and Construction
Nitriding of steel is a process for

Annealing
Spheroidising
Normalising
Case hardening

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Materials and Construction
Babbit metal used for making bearings should have

High-co-efficient of friction between journal and bearing
Ability to retain lubricant on its surface
Low co-efficient of friction between journal and bearing
Both B & C

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Materials and Construction
Steel rods are used in reinforced concrete to increase its __________ strength.

Shear
None of these
Compressive
Tensile

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Materials and Construction
Which of the following pairs of elements may form an alloy?

Iron & mercury
Iron & carbon
Platinum & mercury
None of these

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Materials and Construction
Metal at the top of the electromotive series is

Most active
Least active
Most stable
Most noble

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Materials and Construction
__________ does not contain copper as an alloying element,

Nichrome
Monel metal
Perminivar
Manganin

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