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

Related Mcqs:

1. 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

2. 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.

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

   A. 1 : % : 3
   B. 1 : Vz: 4>/2
   C. 1:1:6
   D. 1:2:9

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

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

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. Cement mortars richer than 1 : 3 are not used in masonry because_________________?

   i) there is no gain in strength of masonry
   ii) there is high shrinkage
   iii) they are prone to segregation
   select the correct statements?

   A. Only (ii) is correct
   B. (i) and (ii) are correct
   C. (ii) and (iii) are correct
   D. (i), (ii) and (iii) are correct

8. Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have________________?

   A. high shrinkage
   B. less strength
   C. both (A) and (B)
   D. none of above

9. For strengthening a 50 m long and 5 m high straight compound wall built in brick work, which one of the following would be most suitable?

   A. providing buttresses at certain intervals
   B. providing a deeper foundation
   C. using a richer mortar
   D. using stronger bricks

10. Consider the following statements regarding provision of chases in masonry_________________?

    (i) No chase should be permitted in a half brick load-bearing wall,
    (ii) Vertical chases should not be closer than 2 m in any stretch of a wall,
    (iii) Chases should be provided near to bearings of beams and lintels.
    Select the the statements ?

    A. (i) and (ii) are correct
    B. (i) and (iii) are correct
    C. (ii) and (iii) are correct
    D. (i), (ii) and (iii) are correct