Geotechnical Engineering Quiz Set-1 [2025]

One of the following scientists is associated with theory in soil Mechanics

If the voids of a soil mass are full of air only, the soil is termed as

Select the correct statement.

Voids ratio of a soil mass can

When the degree of saturation is zero, the soil mass under consideration represents

If the volume of voids is equal to the volume of solids in a soil mass, then the values of porosity and voids ratio respectively are

If the degree of saturation of a partially saturated soil is 60 %, then air content of the soil is

If the water content of a fully saturated soil mass is 100%, then the voids ratio of the sample is

The ratio of volume of voids to the total volume of soil mass is called

Foundation shown in the figure is called as -

If the sand in-situ is in its densest state, then t

Which of the following methods is most accurate for the determination of the water content of soil?

For proper field control, which of the following methods is best suited for quick determination of water content of a soil mass?

A pycnometer is used to determine

Stoke's law is valid only if the size of particle is

In hydrometer analysis for a soil mass

Which of the following is a measure of particle size range?

Which of the following statements is correct?

Uniformity coefficient of a soil is

If the natural water content of soil mass lies between its liquid limit and plastic limit, the soil mass is said to be in

When the plastic limit of a soil is greater than the liquid limit, then the plasticity index is reported as

Toughness index is defined as the ratio of

If the plasticity index of a soil mass is zero, the soil is

The admixture of coarser particles like sand or silt to clay causes

Select the correct statement.

The water content of soil, which represents the boundary between plastic state and liquid state, is known as

Which of the following soils has more plasticity index?

At liquid limit, all soils possess

If the material of the base of the Casagrande liquid limit device on which the cup containing soil paste drops is softer than the standard hard rubber, then

According to IS classification, the range of silt size particles is

The effective stress is

When the degree of consolidation is 50 % ,the time factor is about

Vacum well points are generally used for draining

Highway Research Board (HRB) classification of soils is based on

Inorganic soils with low compressibility are represented by

Sand particles are made of

The clay mineral with the largest swelling and shrinkage characteristics is

Dispersed type of soil structure is an arrangement comprising particles having

Effective stress is

Rise of water table above the ground surface causes

The total and effective stresses at a depth of 5 m below the top level of water in a swimming pool are respectively

If the water table rises upto ground surface, then the

Quick sand is a

Chemical grouting is used for

The gas formed by the reaction of calcium carbide with water is

The seepage pressure is proportional to

The hydraulic head that would produce a quick condition in a sand stratum of thickness 1.5 m, specific gravity 2.67 and voids ratio 0.67 is equal to

Physical properties of a permeant which influence permeability are

Select the correct statement.

The behavior of clay is governed by

The weakest bond in soil is

Honey combed structure is found in

Effective stress on soil

If the permeability of a soil is 0.8 mm/sec, the type of soil is

Which of the following methods is more suitable for the determination of permeability of clayey soil?

Which of the following methods is best suited for determination of permeability of coarse grained soils?

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

Coefficient of permeability of soil

The average coefficient of permeability of natural deposits

The total discharge from two wells situated near to each other is

Relative density of a compacted dense sand is approximately equal to

Terzaghi’s bearing capacity factor depends on

Co efficient of curvature of a well graded gravel is

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 metre length of dam is

The most suitable method for drainage of fine grained cohesive soils is

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

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

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

A normally consolidated clay settled 10 mm when effective stress was increased from 100 kN/m2 to 200 kN/ m2. If the effective stress is further increased from 200 kN/ m2 to 400 kN/ m2, then the settlement of the same clay is

In a deposit of normally consolidated clay

The most accurate method for the determination of water content in the laboratory is

An inorganic clay of high compressibility is represented by the symbol

Phreatic line in an earthen dam is

The branch of science which deals with study of properties of water is called as

The viscosity of a gas

Newton's law of viscosity relates

Centre of buoyancy always

Metacentric height for small values of angle of heel is the distance between the

A floating body is said to be in a state of stable equilibrium

The increase in metacentric height
i) increases stability
ii) decreases stability
iii) increases comfort for passengers
iv) decreases comfort for passengers
The correct answer is

The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as

If a vessel containing liquid moves downward with a constant acceleration equal to 'g' then

When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies

A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is

The horizontal component of force on a curved surface is equal to the

A closed tank containing water is moving in a horizontal direction along a straight line at a constant speed. The tank also contains a steel ball and a bubble of air. If the tank is decelerated horizontally, then
i) the ball will move to the front
ii) the bubble will move to the front
iii) the ball will move to the rear
iv) the bubble will move to the rear Find out which of the above statements is correct?

The eddy viscosity for turbulent flow is

A 20 mm Dam pipe forks one branch being 10 mm diameter and the other 15 mm in diameter. The velocity in 10 mm pipe is 0.3 m/s and in the 15 mm pipe is 0.6 m/s calculate the rate of flow (Q) in cm3/s and velocity (V) in m/s in 20mm diameter pipe.

Flow at constant rate through a tapering pipe is
i) steady flow
ii) uniform flow
iii) unsteady flow

iv) non-uniform flow
The correct answer is

In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

Least possible value of correction factor for
i) kinetic energy is zero
ii) kinetic energy is 1
iii) momentum is zero
iv) momentum is 1
The correct statements are

If the velocity is zero over half of the cross-sectional area and is uniform over the remaining half, then the momentum correction factor is

If velocity is zero over l/3rd of a cross-section and is uniform over remaining 2/3rd of the cross-section, then the correction factor for kinetic energy is

The motion of air mass in a tornado is a

In a forced vortex motion, the velocity of flow is

Stream lines and path lines always coincide in case of

Equation of continuity is based on the principle of conservation of

In steady flow of a fluid, the total acceleration of any fluid particle

The pitot tube is used to measure

Hot wire anemometer is used to measure

The theoretical value of coefficient of contraction of a sharp edged orifice is

Which of the following is used to measure the discharge?

Select the incorrect statement

Size of a venturimeter is specified by

Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by

Which of the following is an incorrect statement?

Coefficient of velocity of venturimeter

The pressure at the summit of a syphon is

A.V between two stream lines represents

Coefficient of velocity for Borda's mouth piece running full is

Coefficient of discharge for a totally submerged orifice as compared to that for an orifice discharging free is

The major loss of energy in long pipes is due to

Coefficient of contraction for an external cylindrical mouthpiece is

Which of the following has highest coefficient of discharge?

Which of the following statements is correct?

For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be

The shear stress distribution for a fluid flowing in between the parallel plates, both at rest, is

Stanton diagram is a

The depth 'd' below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be

where D is the depth of flow

The distance y from pipe boundary, at which the point velocity is equal to average velocity for turbulent flow, is

where R is radius of pipe.

If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is

When an ideal fluid flows past a sphere,

In case of an airfoil, the separation of flow occurs

With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

In which of the following the friction drag is generally larger than pressure drag?

For hydro-dynamically smooth boundary, the friction coefficient for turbulent flow is

The value of friction factor 'f' for smooth pipes for Reynolds number 106 is approximately equal to

For laminar flow in a pipe of circular cross-section, the Darcy's friction factor f is

Separation of flow occurs when

The ratio of average velocity to maximum velocity for steady laminar flow in circular pipes is

The distance from pipe boundary, at which the turbulent shear stress is one third die wall shear stress, is

Where R is the radius of pipe

The velocity distribution for laminar flow through a circular tube