MATERIALS AND CONSTRUCTION QUIZ

The addition of antimony in tin-based alloys improves its

Deformation resistance

Wear resistance

Impact strength and bonding strength

Rupture strength and hot hardness

TRUE ANSWER : ?
YOUR ANSWER : ?

Pure nickel is

Not resistant to oxidation at high temperature

Ferromagnetic above its curie point (i.e., 415°C)

Having h.c.p. crystal lattice

Ferromagnetic at room temperature

TRUE ANSWER : ?
YOUR ANSWER : ?

German silver used for decorative purposes contains maximum percentage of

Copper

Zinc

Silver

Nickel

TRUE ANSWER : ?
YOUR ANSWER : ?

The digester of a Gobar gas plant is a

Mild steel drum

Cast iron vessel

Masonry well

Stainless steel vessel

TRUE ANSWER : ?
YOUR ANSWER : ?

Hot working of lead is carried out at

Room temperature

75° C

150° C

373° K

TRUE ANSWER : ?
YOUR ANSWER : ?

Aluminium as a material of construction suffers from the disadvantage of

Very high cost

Rather low tensile strength

Very low strength to weight ratio

Scarce availability

TRUE ANSWER : ?
YOUR ANSWER : ?

Plasticisers are added to polymers to improve their

Alkali resistance

Acid resistance

Tensile strength

Softness & flexibility

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one contains the least percentage of carbon?

High speed steel

Cast iron

Pig iron

Wrought iron

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Lead

Titanium

Aluminium

Stainless steel

TRUE ANSWER : ?
YOUR ANSWER : ?

Steel pipes are normally manufactured by __________ process.

Electroforming

Cold working

Extrusion

Forging

TRUE ANSWER : ?
YOUR ANSWER : ?

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