Building Materials
Higher pitch of the roofi) results in stronger roofii) results in weaker roofiii) requires more covering materialiv) requires less covering materialThe correct answer is

(i) and (iii)
(i) and (iv)
(ii) and (iv)
(ii) and (iii)

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Building Materials
Assertion A : Normally turpentine oil is recommended as thinner for indoor painting.Reason R : Turpentine oil is costlier than other thinners.Select your answer according to the coding system given below:

Both A and R is true but R is not the correct explanation of A
A is true but R is false
A is false but R is true
Both A and R is true and R is the correct explanation of A

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