Crushing strength of a first class brick should not be less than_____________?

Related Mcqs:

1. Compared to mild steel, cast iron has (1) high compressive strength (2) high tensile strength (3) low compressive strength (4) low tensile strength The correct answer is_________________?

   A. (1) and (2)
   B. (2) and (3)
   C. (3) and (4)
   D. (1)and(4)

2. The initial setting time for ordinary Portland cement as per IS specifications should not be less than_____________?

   A. 10 minutes
   B. 30 minutes
   C. 60 minutes
   D. 600 minutes

3. Which of the following ingredients of the brick earth enables the brick to retain its shape ?

   A. alumina
   B. silica
   C. iron
   D. magnesia

4. The frog of the brick in a brick masonry is generally kept on______________?

   A. bottom face
   B. top face
   C. shorter side
   D. longer side

5. Crushing strength of a good building stone should be more than____________?

   A. 50 MPa
   B. 100 MPa
   C. 150 MPa
   D. 200 MPa

6. A first class brick when immersed in cold water for 24 hours should not absorb water more than______________?

   A. 15%
   B. 20%
   C. 22%
   D. 25%

7. A good building stone should not absorb water more than_____________?

   A. 5%
   B. 10%
   C. 15%
   D. 20%

8. The slenderness ratio for masonry walls should not be more than_____________?

   A. 10
   B. 20
   C. 30
   D. 40

9. According to IS specifications, the compressive strength of ordinary portland cement after three days should not be less than________________?

   A. 7 MPa
   B. 11.5 MPa
   C. 16 MPa
   D. 21 MPa

10. Excess of silica in brick earth results in______________?

    A. cracking and warping of bricks
    B. loss of cohesion
    C. enhancing the impermeability of bricks
    D. none of the above