MATERIALS AND CONSTRUCTION QUIZ

Carbon supply in pack carburising process is in the form of

Charcoal

Graphite

Hydrocarbon oil

Calcium carbide

TRUE ANSWER : ?
YOUR ANSWER : ?

Duralumin is an alloy of

Aluminium, nickel and silicon

None of these

Aluminium, copper and manganese

Aluminium and nickel

TRUE ANSWER : ?
YOUR ANSWER : ?

Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with

Acidic refractory

Karbate

Lead or acid-proof bricks

Rubber

TRUE ANSWER : ?
YOUR ANSWER : ?

Babbit metals used for making bearings are

Yellow metals

Tin or lead based alloys

Having homogenous microstructure

Short of antifrictional properties

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following has the highest compressive strength?

Mild steel

Cast iron

Wrought iron

High carbon steel

TRUE ANSWER : ?
YOUR ANSWER : ?

A bearing metal should not have

Low co-efficient of friction

Low thermal conductivity

Enough plasticity

High toughness

TRUE ANSWER : ?
YOUR ANSWER : ?

The softest material in Mho's scale (for measuring hardness) is

Rubber

None of these

Talc

Gypsum

TRUE ANSWER : ?
YOUR ANSWER : ?

The maximum percentage of chromium that can be added to steel is about

30

18

24

12

TRUE ANSWER : ?
YOUR ANSWER : ?

Cast iron is having very high

All of these

Ductility

Proximity between its elastic limit and ultimate breaking strength

Tensile strength

TRUE ANSWER : ?
YOUR ANSWER : ?

Tubes of multiple effect evaporator used for concentration of sugar cane juice are made of

Copper

Brass

Nickel

Stainless steel

TRUE ANSWER : ?
YOUR ANSWER : ?

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