Materials and Construction MCQs

Question 1

Maximum consumption of zinc is in

Accepted Answer

Galvanising

Answer

Alloying

Answer

Utensil manufacture

Answer

Electrical industry

Question 2

Tin base and lead base alloys are used for bearing materials. Tin compared to lead has lower

Accepted Answer

Abundant availability

Answer

Price

Answer

Corrosion resistance

Answer

Thermal conductivity

Question 3

Inconel is an alloy of

Accepted Answer

Iron, nickel and chromium

Answer

Tin, zinc and nickel

Answer

Copper and nickel

Answer

Copper and tin

Question 4

Non-ferrous metals and hard steels do not exhibit a definite yield point, when pulled in the testing machine and hence for these cases, a better measure of their elastic properties is defined by the __________ stress.

Accepted Answer

Proof

Answer

Ultimate

Answer

Yield point

Answer

None of these

Question 5

Pick out the wrong statement.

Accepted Answer

The ability of a material to fracture without appreciable deformation is called its ductility

Answer

Bronze is an alloy of copper & tin

Answer

Brass is an alloy of copper & zinc

Answer

The alloy named 'German silver' does not contain any silver

Question 6

Carbon is present in the combined form (carbide) in case of

Accepted Answer

All of the above

Answer

Pig iron

Answer

Steel

Answer

Ferroalloys

Question 7

Rubber lined pumps can be used to pump

Accepted Answer

All of the above

Answer

Caustic soda

Answer

Chlorinated brine

Answer

Hypochlorous acid

Question 8

Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)

Accepted Answer

Are used for leaf and coiled springs

Answer

Do not require heat treatment for any of its applications

Answer

Do not have good resilience properties

Answer

Is tempered at 850°C

Question 9

When the steel is subjected to normalising, its __________ decreases.

Accepted Answer

Ductility

Answer

Yield point

Answer

Ultimate tensile strength (UTS)

Answer

None of these