Oneliner Question Answers of Building Materials and Construction Part-2

1.A volatile substance added to a paint to make its application easy and smooth, is known as-Solvent

2.Jumper is a tool used for-Quarrying of stones

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3.Sapwood consists of-Portion of timber between heartwood and cambium layer

4.Strength of cement concrete primarily depends upon-Water-cement ratio

5.The main function of alumina in brick earth is-To impart plasticity

6.The following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth-Silica and alkalies

7.Hydraulic lime is obtained by-Burning of kankar

8.Oil varnish generally consists of-Resin, oil and turpentine

9.Gypsum consists of -CaSO4 and H₂O

10.For sanitary pipes and chemical stonewares,-Salt glazing is used

11.The most commonly used retarder in cement is-Gypsum

12.The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called-Hypabyssal rocks

13.The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is-Less than 1

14.The tendency of a stone is, to split along:-Cleavage

 

15.Non acid-resistant asbestos is:-Chrysotile asbestos

16.The pressure acting on the stones in stone masonry construction should be-Perpendicular to the direction of bedding planes

17.The constituent of good brick earth whose excess causes the raw bricks shrink and warp during drying and burning, - Alumina

18.The type of bond provided in brick masonry for carrying heavy loads is-English bond

19.Gypsum is a- Chemically precipitated sedimentary rock

20.Seasoning of timber is done-To remove water