Top 250+ Solved Geotechnical Engineering MCQ Questions Answer
Q. The factor which affects the compaction, is
a. Moisture content
b. Compacting content
c. Method of compaction
d. All the above
Q. In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear
a. Decreases
b. Increases
c. Remains unchanged
d. First increases and then decreases
Q. The maximum value of effective stress in the past divided by the present value is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is
a. Less than 1
b. 1
c. More than 1
d. None of these
Q. If S, L and R are the arc length, long chord and radius of the sliding circle then the perpendicular distance of the line of the resultant cohesive force, is given by
a. a = S.R/ L
b. a = L.S/R
c. a = L.R/S
d. None of these
Q. Uniformity coefficient of a soil is
a. Always less than 1
b. Always equal to 1
c. Equal to or less than 1
d. Equal to or greater than 1
Q. The fluid generally used for grouting is
a. Cement and water mix
b. Clay suspension
c. Sodium silicate
d. All the above
Q. The total and effective stresses at a depth of 5 m below the top level of water in a swimmingpool are respectively
a. Zero and zero
b. 0.5 kg/cm² and zero
c. 0.5 kg/cm² and 0.5 kg/cm²
d. 1.0 kg/cm² and 0.5 kg/cm²
Q. Time factor for a clay layer is
a. A dimensional parameter
b. Directly proportional to permeability of soil
c. Inversely proportional to drainage path
d. Independent of thickness of clay layer
Q. The critical exist gradient of seepage water in soils, is
a. Directly proportional to the voids ratio
b. Inversely proportional to the specific gravity
c. Directly proportional to the specific gravity
d. None of these
Q. In the triaxial compression test, the application of additional axial stress (i.e. deviator stress)on the soil specimen produces shear stress on
a. Horizontal plane only
b. Vertical plane only
c. Both horizontal and vertical planes
d. All planes except horizontal and vertical planes
Q. For a clay slope of height of 10 m, the stability number is 0.05, = 2.0 t/m3, C = 2.5 t/m2,the critical height of the slope of the soil, is
a. 4.0 m
b. 12.5 m
c. 25.0 m
d. 15.0 m
Q. Allowable bearing pressure for a foundation depends upon
a. Allowable settlement only
b. Ultimate bearing capacity of soil only
c. Both allowable settlement and ultimate bearing capacity
d. None of above
Q. Pick up the correct statement from the following:
a. The property of a soil that enables it to become stiff in a relatively short time on standing is called thixotropy
b. The ratio of shear strength in natural state to the remoulded shear strength under undrained conditions is called degree of sensitivity
c. The difference between the undisturbed shear strength and remoulded shear strength is known remoulding loss
d. All the above