Building Materials MCQs

Question 1

The usual percentages of clay and metal in cermet are:

Accepted Answer

80%, 20%

Answer

50%, 50%

Answer

60%, 40%

Answer

70%, 30%

Question 2

Good quality stones must

Accepted Answer

All the above

Answer

Be durable

Answer

Be free from clay

Answer

Resist action of acids

Question 3

Spalling hammer is used for

Accepted Answer

Rough dressing of stones

Answer

Driving wooden headed chisels

Answer

Carving of stones

Answer

Breaking small projection of stones

Question 4

In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is

Accepted Answer

Right angles

Answer

45°

Answer

60°

Answer

Parallel

Question 5

Chemically, marble is known as

Accepted Answer

Calcareous rock

Answer

Metamorphic rock

Answer

Argillaceous rock

Answer

Siliceous rock

Question 6

Geologically, marble is known as

Accepted Answer

Metamorphic rock

Answer

Sedimentary rock

Answer

Igneous rock

Answer

Stratified rock

Question 7

The proportions of charcoal, saltpetre and sulphur in gun powder by weight, are respectively:

Accepted Answer

15, 75, 10

Answer

75, 10, 15

Answer

10, 15, 75

Answer

10, 75, 15

Question 8

Percentage of silica in a good brick earth lies between

Accepted Answer

50 to 60%

Answer

5 to 10%

Answer

20 to 30%

Answer

70 to 80%

Question 9

The percentage of alumina in a good brick earth lies between

Accepted Answer

20 to 30%

Answer

5 to 10%

Answer

50 to 60%

Answer

70 to 80%