Building Materials Which of the following represents a metamorphic rock? (i) Slate (ii) Shale (iii) Quartzite Only (iii) Both (i) and (iii) Both (ii) and (iii) All (i), (ii) and (iii) Only (iii) Both (i) and (iii) Both (ii) and (iii) All (i), (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Building Materials Asbestos Is a natural fibrous mineral substance All of these Contains iron oxide and alumina Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) Is a natural fibrous mineral substance All of these Contains iron oxide and alumina Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) ANSWER DOWNLOAD EXAMIANS APP
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 (ii) and (iii) (i) and (iv) (i) and (ii) (iii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (iii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Building Materials The weight of a good quality brick when immersed in water for a period of 16 hours should not exceed the weight of dry brick None of these 10 % 15 % 20 % None of these 10 % 15 % 20 % ANSWER DOWNLOAD EXAMIANS APP
Building Materials Age of a tree may be ascertained by Number of annual rings Number of branches Radius of its stem Circumference of its stem Number of annual rings Number of branches Radius of its stem Circumference of its stem ANSWER DOWNLOAD EXAMIANS APP
Building Materials Which of the following cements is suitable for use in massive concrete structures such as large dams? Sulphate resisting cement Low heat cement Ordinary Portland cement Rapid hardening cement Sulphate resisting cement Low heat cement Ordinary Portland cement Rapid hardening cement ANSWER DOWNLOAD EXAMIANS APP
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