MATERIALS AND CONSTRUCTION QUIZ

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

Creep

Ductility

Plasticity

Elasticity

TRUE ANSWER : ?
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Constantan is an alloy of

Pt (95%) & Rh (10%)

Cu (55%) & Sn (45%)

Fe (80%) & Ni (20%)

Cu (55%) & Ni (45%)

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The chlorinator used in the manufacture of DDT is made of

Glass lined steel

Bakelite

Glass

Teflon

TRUE ANSWER : ?
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__________ does not contain tin as an alloying material.

Babbit metal

Solder

Brass

Pewter

TRUE ANSWER : ?
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Maximum consumption of copper is in

Industrial equipment manufacture

Small scale industries

Electrical industry

Utensil manufacture

TRUE ANSWER : ?
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Babbit metal (used for making bearings) comprises of

Saw dust and iron dust mixture

Copper and aluminium

Mainly tin (85%) and lead

Zinc and aluminium

TRUE ANSWER : ?
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Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its

Corrosion resistance

Compressive strength

Tensile strength

Machinability

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Ability of a material to __________ is indicated by its damping capacity.

Absorb vibration

None of these

Withstand compression

Absorb shock

TRUE ANSWER : ?
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Nickel (56%) and molybdenum (17%) alloys are called

Hastealloy C

Inconel

Monel

Bronzes

TRUE ANSWER : ?
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Ferric stainless steels compared to austenitic stainless steels

Have lower corrosion resistance

All of these

Are less ductile and hence less suitable for cold pressing

Are harder to fabricate

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