Civil Engineering MCQs

Page No. 245

Coefficient of consolidation of a soil is affected by_______________?


acompressibility


bpermeability


c both compressibility and permeability


dnone of the above



The most suitable method for drainage of fine grained cohesive soils is________________?


awell ppint system


bvacuum method


cdeep well system


d electroosmosis method



Within the consolidation process of a saturated clay__________________?


aa gradual increase in neutral pressure and a gradual decrease in effective pressure takes place and sum of the two is constant


ba gradual decrease in neutral pressure and a gradual increase in effective pressure takes place and sum of the two is constant


cboth neutral pressure and effective pressure decrease


dboth neutral pressure and effective pressure increase



The average coefficient of permeability of natural deposits________________?


aparallel to stratification is always greater than that perpendicular to stratification


b parallel to stratification is always less than that perpendicular to stratification


cis always same in both directions


d parallel to stratification may or may not be greater than that perpendicular to stratification



The value of compression index for a remoulded sample whose liquid limit is 50% is______________?


a0.028


b0.28


c036


d0.036


View Answer 0.28

The slope of isochrone at any point at a given time indicates the rate of change of_______________?


aeffective stress with time


b effective stress with depth


cpore water pressure with depth


dpore water pressure with time



The flownet for an earthen dam with 30 m water depth consists of 25 potential drops and 5 flow channels. The coefficient of permeability of dam material is 0.03 mm/sec. The discharge per meter length of dam is________________?


a 0.00018 nrVsec


b0.0045 m3/sec


c0.18m3/sec


d0.1125m3/sec


View Answer 0.00018 nrVsec

Total number of stress components at a point within a soil mass loaded at its boundary is______________?


a3


b 6


c9


d 16


View Answer 9

The total discharge from two wells situated near to each other is_________________?


asum of the discharges from individual wells


bless than the sum of the discharges from individual wells


cgreater than the sum of the discharges from individual wells


dequal to larger of the two discharges from individual wells



Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability__________________?


a increases by 25%


bincreases by 50%


cincreases by 33.3%


ddecreases by 33.3%


View Answer increases by 50%

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