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Building Construction Materials and Techniques by P.Purushothama Raj

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OBJECTIVE TYPE QUESTIONS AND ANSWERS

CHAPTER 1

Properties of Construction Materials

1. Mass per unit volume of a homogeneous material is termed as

(a) Unit weight

(b) Specific gravity

(c) Density

(d) Porosity

(e) Density index

2. Spalling resistance of a material depends mainly on

(a) Coefficient of linear expansion of the material

(b) Coefficient of compression of the material

(c) Contraction property of the material

(d) Non-homogeneous property of the material

(e) Isotropic property of the material

3. Hygroscopicity of a material is the property of a material

(a) To absorb water through the pores

(b) To absorb water vapour from air

(c) To absorb pure air from the atmosphere

(d) To collect the dust from air

(e) To collect ...

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