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

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Building Materials
The plywood

Cannot be bent more easily than ordinary wood of same thickness
Has good strength along the panel only
Has greater impact resistance to blows than ordinary wood
Can be spilt in the plane of the panel

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