MATERIALS AND CONSTRUCTION QUIZ

Corrosion resisting properties of cast iron are significantly improved by the addition of 12 - 15% of

Vanadium

Tungsten

All of these

Silicon

TRUE ANSWER : ?
YOUR ANSWER : ?

Brine (15% concentration) can be stored in a vessel made of

Cast iron

Karbate

None of these

Monel

TRUE ANSWER : ?
YOUR ANSWER : ?

Electronic structure of a material is generally studied by

X-ray

Spectroscopic techniques

Electron diffraction

Metallurgical microscope

TRUE ANSWER : ?
YOUR ANSWER : ?

A hardened steel essentially contains

None of these

Martensite

Troostite

Sorbite

TRUE ANSWER : ?
YOUR ANSWER : ?

Iron rust is

Powdered iron

Hydrated ferric oxide

Ferrous oxide

Ferric sulphide

TRUE ANSWER : ?
YOUR ANSWER : ?

'Hypersil' is a __________ steel.

Molybdenum

High speed

Silicon

Tungsten

TRUE ANSWER : ?
YOUR ANSWER : ?

The behaviour of visco-elastic material is time dependent. This behaviour is commo in __________ materials.

Rubberry

Crystalline

Non-crystalline organic polymeric

Non-crystalline solid

TRUE ANSWER : ?
YOUR ANSWER : ?

Cast iron has

Very high tensile strenth

Elastic limit close to ultimate breaking strength

High malleability

High ductility

TRUE ANSWER : ?
YOUR ANSWER : ?

Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)?

Induction motors

Armature of small motors/generators

Generators and small motors

High frequency transformers

TRUE ANSWER : ?
YOUR ANSWER : ?

Cast iron is

Used for making shock resisting parts

Manufactured in cupola and is brittle

All of these

Having compressive strength more than its tensile strength

TRUE ANSWER : ?
YOUR ANSWER : ?

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