A free standing brick wall 20 cm thick is subjected to a wind pressure of 75kg/m2. The maximum height of wall from stability consideration is___________________?

A. 10 cm
B. 15 cm
C. 20 cm
D. 30 cm

i) shall not exceed 12 if lime mortar is used
ii) shall not exceed 18 if cement lime mortar 1:2:9 is used
iii) shall not exceed 24 if cement mortar 1:6 is used
the correct statments is ?
A. (i) and (ii) are correct
B. (ii) and (iii) are correct
C. (i) and (iii) are correct
D. (i) and (ii) and (iii) are correct

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

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.

A. 1.2
B. 1.4
C. 1.6
D. 2.0

A. 0
B. between 0 and 1
C. 1
D. greater than 1