1. The bricks which are table moulded and of standard shape and burnt in kilns are known as ____.

[A] First class bricks
[B] Second class bricks
[C] Third class bricks
[D] Fourth class bricks

Answer: Option A

2. Crushing strength of the first-class brick should not be less than _____.

[A] 14 N/mm^2
[B] 1 N/mm^2
[C] 10.5 N/mm^2
[D] 3 N/mm^2

Answer: Option C


3. The size of the standard modular brick is _____.

[A] 19 cm x 9 cm x 9 cm
[B] 20 cm x 9 cm x 9 cm
[C] 20 cm x 10 cm x 10 cm
[D] 20 cm x 10 cm x 9 cm

Answer: Option A


4. In manufacturing of bricks, which ingredient of clay is responsible for red colour of brick?

[A] Iron Oxide
[B] Lime
[C] Magnesia
[D] Alkaline

Answer: Option A


5. _____ impurities in the mixing water have the highest destructive effect for concrete.

[A] Algae
[B] Alkalies
[C] Calcium chloride
[D] Lead nitrate

Answer: Option D



Leave a Reply

Your email address will not be published. Required fields are marked *