8/2/2019 GT Quiz

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8/2/2019 GT Quiz

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8/2/2019 GT Quiz

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Q.14. A constant head permeameter is used for

(a) coarse grained soil

(b)silty soil

(c)clayey soils

(d)organic soils

Q.15. An illite mineral the bond between structrural unit is

(a)Hydrogen bond

(b)potassium ion bond

(c)Water molecule bond

(d)covalent bond

Q.16.In fine sands and silts the most common type structure is

(a)Single grained

(b) Honey comb

(c)Capillary water

(d)Dispersed

Q.17. The max. size of particle of clay is

(a)0.2 mm

(b)0.02mm

(c)0.002 mm

(d) 0.0002 mm

Q.18.

Q.19. The most accurate method for the determination of water content in the laboratory is :

(a) sand bath method

(b) oven drying method

(c) Pycnometer method

(d) calcium carbide method

Q.20. The ratio of the vol. of voids to the total vol. of soil is :

(a) voids ratio

(b) degree of saturation

(c) air content

(d) porosity

8/2/2019 GT Quiz

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Q.21.according to IS classification system, the soils can be classified into:

(a) 15 groups

(b) 18 groups

(c) 3 groups

(d) 7 groups

Q.22. The coff. Of permeability of a soil :

(a) increase with a increase in temperature.

(b) increase with a decrease in temperature .

(c) inc. with a decrease in unit wt. of water.

(d) decrease with an increase in void ratio.

Q 23.The seepage pressure is proportional to :

(e) Hydraulic gradient.(f) Unit wt. of water.(g) Length of the specimen.(h) All the above

Q 24. The coff. of permeability of clay is generally:

(e) Between 10 & 10 mm/s(f) Bt. 10 & 10 mm?s(g) Bt. 10 & 10 mm/s(h) Less than 10 mm/s

Q.25. an octahedral unit has :

(a) 4 negative charges.

(b) 3 negative charges.

(c) 1 negative charges

(d) no negative charges.