The depth of tension crack in a soft clay (?u = 0) is

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Question
The depth of tension crack in a soft clay (?_u = 0) is
Options
A.
B.
C.
D.

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1. The ruling minimum radius of horizontal curve of a national highway in plain terrain for ruling design speed of 100 km/hour with e = 0.07 and f = 0.15 is close to
Options
A. 250 m
B. 360 m
C. 36 m
D. 300 m

3. The characteristic strength of concrete is defined as that compressive strength below which not more than
Options
A. 10% of results fall
B. 5% of results fall
C. 2% of results fall
D. None of the above.

4. A water treatment plant is required to process 28800 m³/d of raw water (density = 1000 kg/m³, kinematic viscosity = 10^-6 m²/s). The rapid mixing tank imparts tank a velocity gradient of 900s^-1 to blend 35 mg/l of alum with the flow for a detention time of 2 minutes. The power input (W) required for rapid mixing is
Options
A. 32.4
B. 36
C. 324
D. 32400

5. The modulus of subgrade reaction is obtained from the plate bearing test in the form of load-deformation curve. The pressure corresponding to the following settlement value should be used for computing modulus of subgrade reaction
Options
A. 0.375 cm
B. 0.175 cm
C. 0.125 cm
D. 0.250 cm

6. The microbial quality of treated piped water supplies is monitored by
Options
A. Microscopic examination
B. Plate count of heterotrophic bacteria
C. Coliform MPN test
D. Identification of all pathogens

10. Some of the structural strength of a clayey material that is lost by remoulding is slowly recovered with time. This property of soils to undergo an isothermal gel-to-soil-to-gel transformation upon agitation and subsequent rest is termed :
Options
A. Isotropy
B. Anisotropy
C. Thixotropy
D. Allotropy

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