1
GATE CE 2024 Set 2
MCQ (More than One Correct Answer)
+2
-0

Consider the statements P, Q, and R.

P: Compacted fine-grained soils with flocculated structure have isotropic permeability.

Q: Phreatic surface/line is the line along which the pore water pressure is always maximum.

R: The piping phenomenon occurring below the dam foundation is typically known as blowout piping.

Which of the following option(s) is/are CORRECT?

A

Both P and R are TRUE

B

P is FALSE and Q is TRUE

C

P is TRUE and R is FALSE

D

Both Q and R are FALSE

2
GATE CE 2024 Set 2
Numerical
+2
-0

A homogeneous earth dam has a maximum water head difference of 15 m between the upstream and downstream sides. A flownet was drawn with the number of potential drops as 10 and the average length of the element as 3 m. Specific gravity of the soil is 2.65. For a factor of safety of 2.0 against piping failure, void ratio of the soil is __________ (rounded off to 2 decimal places).

Your input ____
3
GATE CE 2024 Set 2
Numerical
+2
-0

The in-situ percentage of voids of a sand deposit is 50%. The maximum and minimum densities of sand determined from the laboratory tests are 1.8 g/cm3 and 1.3 g/cm3, respectively. Assume the specific gravity of sand as 2.7.

The relative density index of the in-situ sand is ______________ (rounded off to 2 decimal places).

Your input ____
4
GATE CE 2024 Set 2
Numerical
+2
-0

A drained triaxial test was conducted on a saturated sand specimen using a stress-path triaxial testing system. The specimen failed when the axial stress reached a value of 100 kN/m2 from an initial confining pressure of 300 kN/m2.

The angle of shearing plane (in degrees) with respect to horizontal is ______________ (rounded off to the nearest integer).

Your input ____
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