Building Materials MCQs

Question 1

The steel used for rails under heavy traffic and on sharp curves, is

Accepted Answer

Magnese steel

Answer

Nickel steel

Answer

Chrome steel

Answer

Vanadium steel.

Question 2

Stainless steel contains

Accepted Answer

18% of chromuim and 8% nickel

Answer

8% of chromium and 18% of nickel

Answer

12% of chromium and 36% of nickel

Answer

36% of chromium and 12% of nickel.

Question 3

Cast iron contains carbon approximately

Accepted Answer

15% to 5.5%

Answer

0.05% to 1.75%

Answer

0.25%

Answer

none to these.

Question 4

Wrought iron contains carbon about

Accepted Answer

0.25%

Answer

1.5% to 5.5%

Answer

0.5% to 1.75%

Answer

none to these.

Question 5

Pick up the correct statement from the following :

Accepted Answer

all the above.

Answer

Corrugated-sheet iron is made by passing plain sheets between grooved rollers

Answer

Strength and stiffness of corrugated sheets are considerably increased

Answer

Corrugated sheets are generally galvenised to protect

Question 6

Expanded metal is

Accepted Answer

all the above.

Answer

manufactured from steel sheets

Answer

used for reinforced concrete in road pavements

Answer

measured in term of SWM (shortway mesh) and LWM (long way mesh)

Question 7

Mild steel is used for

Accepted Answer

structural works in beams, joints and girders

Answer

small sized water pipes

Answer

columns and struts

Answer

none of these.

Question 8

Pick up the correct statement from the following :

Accepted Answer

All the above.

Answer

Rust is due to formation of oxides

Answer

Cast iron oxidises less

Answer

Steel oxidises most

Question 9

Magnese steels

Accepted Answer

all the above.

Answer

are non-magnetic

Answer

possess high electrical resistance

Answer

possess low coefficient of expansion