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Materials and Construction

Materials and Construction
Wrought iron is a suitable material of construction for handling __________ solutions.

None of these
Dilute acidic
Concentrated acidic
Alkalis & alkaline

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Materials and Construction
Presence of silicon in steel

Indicates that steel is not deoxidised properly
Decreases the blow holes formation tendency in castings
None of these
Is in the form of free Si

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Materials and Construction
Which of the following has the highest density and the lowest melting point?

Lead
Aluminium
Titanium
Stainless steel

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Materials and Construction
Which of the following mechanical properties of a material is most structure insensitive?

Percentage reduction of area
Tensile strength
Toughness
Modulus of elasticity (young

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Materials and Construction
Dielectric strength of a material is

A magnetic property
Its energy stroage capacity
Its capacity to resist the flow of current
Its capacity to withstand high voltage

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Materials and Construction
Carbon percentage is the same in cast iron and

Wrought iron
Pig iron
Mild steel
High silicon (14%) iron

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