MATERIALS AND CONSTRUCTION QUIZ

Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of

Aluminium

Lead lined mild steel

Rubber lined mild steel

Cast iron

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the lightest of engineering metals?

Magnesium

Titanium

Aluminium

Tin

TRUE ANSWER : ?
YOUR ANSWER : ?

__________ steel is widely used for the manufacture of motor car crankshafts.

High speed

Silicon

Chrome

Nickel

TRUE ANSWER : ?
YOUR ANSWER : ?

Babbit metal used for making bearings should have

High-co-efficient of friction between journal and bearing

Low co-efficient of friction between journal and bearing

Both B & C

Ability to retain lubricant on its surface

TRUE ANSWER : ?
YOUR ANSWER : ?

'Hypersil' is a __________ steel.

Tungsten

Molybdenum

Silicon

High speed

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following stainless steels is non-magnetic?

None of these

Martensitic

Austenitic

Ferritic

TRUE ANSWER : ?
YOUR ANSWER : ?

High carbon steel contains more than __________ percent carbon.

0.5

2.2

2.8

2.5

TRUE ANSWER : ?
YOUR ANSWER : ?

The impure iron (pig iron) that is tapped out from blast furnace contains about __________ percent carbon.

4

0.2

8

2

TRUE ANSWER : ?
YOUR ANSWER : ?

Metal at the top of the electromotive series is

Most active

Most stable

Most noble

Least active

TRUE ANSWER : ?
YOUR ANSWER : ?

Zinc is not used

In its oxide form as pigments

As an alloying element in various bronzes

For producing zinc base die casting alloys

As anode for corrosion prevention in boiler

TRUE ANSWER : ?
YOUR ANSWER : ?

↑