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

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Building Materials
The plywood

Can be spilt in the plane of the panel
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

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