Materials and Construction MCQs

Question 1

Lead pipe is

Accepted Answer

All of the above

Answer

Especially resistant to solutions containing H 2 SO 4

Answer

Usually joined by burning (e.g. by melting to adjacent pieces with a torch)

Answer

Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain

Question 2

Hydrochloric acid absorber in made of

Accepted Answer

Karbate

Answer

Cast iron

Answer

Mild steel

Answer

Stainless steel

Question 3

Which of the following is not an alloy of tin?

Accepted Answer

German silver

Answer

White-bearing metal

Answer

Pewter type metal

Answer

Soft solder

Question 4

Which of the following is the easiest to bend?

Accepted Answer

Wrought iron

Answer

Steel

Answer

Stainless steel

Answer

Cast iron

Question 5

Which of the following alloys does not contain nickel?

Accepted Answer

Babbit metal

Answer

Chlorinet - 2 alloy

Answer

Monel

Answer

Inconel

Question 6

Galvanising is generally done on

Accepted Answer

Low carbon steel

Answer

Non-ferrous metals

Answer

Stainless steel

Answer

Cast iron

Question 7

Polymorphism is not exhibited by

Accepted Answer

None of these

Answer

Carbon

Answer

Iron

Answer

Phosphorous

Question 8

Thermal shield used in high powered nuclear reactor to protect the walls of the reactor from radiation damage is made of

Accepted Answer

Steel

Answer

Concrete

Answer

Zircalloy

Answer

Graphite

Question 9

__________ is used for examining the macro-structure of a material.

Accepted Answer

Visual inspection by naked eye

Answer

Metallurgical microscope

Answer

Optical microscope

Answer

X-rays