Building Materials
Compared to mild steel, cast iron has
(i) High compressive strength
(ii) High tensile strength
(iii) Low compressive strength
(iv) Low tensile strength

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

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Building Materials
Assertion A : Pure lime takes a long time to develop adequate strength.Reason R : Pure lime has slow hardening characteristics.Select your answer according to the coding system given below:

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

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