1. The weight of a pycnometer containing 400 g sand and water full to the top is 2150 g. The weight of pycnometer full of clean water is 1950 g. If specific gravity of the soil is 2.5, the water content is
Correct : D. 20 %
2. A phreatic line is defined as the line within a dam section below which there are
Correct : B. Positive hydrostatic pressure
3. The coefficient of curvature is defined
Correct : C. D30²/D60 D10
4. Accurate determination of water content, is made by
Correct : D. Oven-drying method
5. The clay soil mainly consists of
Correct : D. All the above
6. The maximum shear stress occurs on the filament which makes an angle with the horizontal plane
equal to
Correct : B. 45°
7. Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from
Correct : D. 105° to 110°C
8. The equation = C + is given by
Correct : B. Coulomb
9. Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than
Correct : B. 80°C
10. Pick up the correct statement from the following:
Correct : D. All the above
11. A soil sample has passing 0.075 mm sieve = 60% liquid limit = 65% and plastic limit = 40%. The group index of the soil, is
Correct : D. None of these
12. The plasticity index is the numerical difference between
Correct : A. Liquid limit and plastic limit
13. The specific gravity of sands, is approximately