Building Materials MCQs

Question 1

A mortar joint in masonry which is normal to the face of wall is known as

Accepted Answer

Cross joint

Answer

Bed joint

Answer

Wall joint

Answer

Bonded joint

Question 2

Percentage content of silica in window glass, is

Accepted Answer

70 to 75

Answer

40 to 45

Answer

50 to 55

Answer

60 to 65

Question 3

The variety of pig iron used for manufacture of wrought iron, is

Accepted Answer

White forge pig

Answer

Bessemer pig

Answer

Grey or foundry pig

Answer

Mottled pig

Question 4

Quick lime (or caustic lime)

Accepted Answer

All the above

Answer

Is obtained by the calcination of pure lime stone

Answer

Has great affinity to moisture

Answer

Is amorphous

Question 5

The cast iron when heated to red heat with powdered red haematite in an oven for increasing its toughness, is converted to

Accepted Answer

Mottled cast iron

Answer

Grey cast iron

Answer

White cast iron

Answer

Toughed cast iron

Question 6

The tendency of a stone is, to split along:

Accepted Answer

Cleavage

Answer

Texture

Answer

Fracture

Answer

Structure

Question 7

Which of the following stone is best suited for construction of piers and abutments of a railway bridge?

Accepted Answer

Granite

Answer

Sand stone

Answer

Lime stone

Answer

Quartzite

Question 8

Acrylic sheets

Accepted Answer

All the above

Answer

Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness

Answer

Are generally unaffected by most household detergents

Answer

Possess the light transmission rate of 93%

Question 9

Wrought iron contains carbon about

Accepted Answer

0.1% to 0.25%

Answer

1.5% to 5.5%

Answer

0.5% to 1.75%

Answer

None to these