Which of the following will give higher ratio of brickwork strength to mortar strength ?

Related Mcqs:

1. Assertion A : Lime based mortars give higher ratio of brickwork strength to mortar strength as compared to non-lime mortar. Reason R : Lime based mortars have lower bond strength as compared to non-lime mortars?

   Select your answer according to the codes given below.

   A. Both A and R are true and R is the correct explanation of A.
   B. Both A and R are true but R is not the correct explanation of A.
   C. A is true but R is false.
   D. A is false but R is true.

2. Assertion A : For identical strength, a composite cement-lime mortar is preferred over cement mortar. Reason R : Composite cement-lime mortar has higher drying shrinkage than cement mortar_____________?

   Select your answer based on the codes given below Codes?

   A. Both A and R are true and R is the correct explanation of A.
   B. Both A and R are true but R is not a correct explanation of A.
   C. A is true but R is false.
   D. A is false but R is true

3. For masonry built in 1:1:6 cement-lime-sand mix mortar or equivalent, the horizontal shear stress permissible on the area of a mortar bed joint is_______________?

   A. 0.15 MPa
   B. 0.125 MPa
   C. 0.1 MPa
   D. 0.075 MPa

4. Minimum compressive strength in N/mm2 for H1 type mortar used for masonry is_______________?

   A. 3
   B. 5
   C. 7.5
   D. 10

5. A high lime content in a composite cement-lime mortar results in______________?

   Consider the following statements.
   1. slow hardening.
   2. quick setting.
   3. weaker mortar.
   select the correct statements.

   A. 2 and 3 are correct
   B. 1 and 2 are correct
   C. 1 and 3 are correct
   D. 1, 2 and 3 are correct

6. In the case of panel wall subjected to horizontal loads at right angles to the plane of the wall, with the mortar not leaner than Ml type, tensile stress in bending in the vertical direction may be allowed to the extent of _______________?

   A. 0.4 kg/cm2
   B. 0.7 kg/cm2
   C. 1.0 kg/cm2
   D. 1.2 kg/cm2

7. Assertion A : From consideration of structural soundness and economy of design, most codes control the maximum slenderness ratio of masonry walls and columns. Reason R : By controlling the maximum slenderness ratio, failure is by excessive stress and not by buckling.?

   Select your answer according to codes given below.

   A. Both A and R are true and R is the correct explanation of A.
   B. Both A and R are true but R is not .the correct explanation of A.
   C. A is true but R is false.
   D. A is false but R is true.

8. Assertion A : For eccentricity ratio exceeding 1/6, effective thickness of masonry will get reduced. Reason R : For eccentricity ratio exceeding 1/6, there will be tension on one side of the member?

   Select your answer according to the codes give below.

   A. Both A and R are true and R is the correct explanation of A.
   B. Both A and R are true and R is not the correct explanation of A.
   C. A is true but R is false.
   D. A is false but R is true.

9. The mortars used for masonry construction are classified based on strength in IS 2250 and IS 1905 according to their designations L1,L2, H1, H2, M, M2.

   The correct sequence of increasing order of their strengths is?

   A. LLLZ.HLHI.MLMJ
   B. L2,L,,M2>Mi,H2)H,
   C. M,,M2, H,,H2,Li,L2
   D. L2,L,,M,,M2,H,,H2

10. The bending stress in a wall or column subjected to effective vertical load need not be considered, if the eccentricity ratio is_________________?

    A. less than or equal to 1/24
    B. less than or equal to 1/6
    C. more than 1/24
    D. less than or equal to 1/12