Which of the following statement(s) is/are CORRECT?
- Swell potential of soil decreases with an increase in the shrinkage limit.
- Both loose and dense sands with different initial void ratios can attain similar void ratio at large strain during shearing.
- Among the several corrections to be applied to the SPT-N value, the dilatancy correction is applied before all other corrections.
- In electrical resistivity tomography, the depth of current penetration is half of the spacing between the electrodes.
The Correct Option is A, B
Solution and Explanation
Top Questions on Soil Mechanics
A 4 x 4 group pile, with each pile 20 m long and 500 mm in diameter, is installed in a square pattern in a clayey soil, as shown in the figure. The average unconfined compressive strength of the soil is 100 kN/m\(^2\), and the adhesion factor is 0.8. Neglect the bearing at the tip of the piles. For a group efficiency factor of 1.0, the centre to centre spacing(s) of the piles (in m) would be ......... (round off to two decimal places).
- GATE CE - 2025
- Civil Engineering
- Soil Mechanics
For a partially saturated soil deposit at a construction site, water content (\(w\)) is 15%, degree of saturation (\(S\)) is 67%, void ratio (\(e\)) is 0.6 and specific gravity of solids in the soil (\(G_s\)) is 2.67. Consider unit weight of water as 9.81 kN/m\(^3\).
To fully saturate 5 m\(^3\) of this soil, the required weight of water (in kN) will be __________ (round off to the nearest integer).
- GATE CE - 2025
- Civil Engineering
- Soil Mechanics
From a flow-net diagram drawn under a concrete dam, the following information is obtained:
(i) The head difference between upstream and downstream side of the dam is 9 m.
(ii) The total number of equipotential drops between upstream and downstream side of the dam is 10.
(iii) The length of the field nearest to the toe of the dam on the downstream side is 1 m.
If the soil below the dam is having a saturated unit weight of 21 kN/m\(^3\) and the unit weight of water is 9.81 kN/m\(^3\), then the factor of safety against the quick condition will be __________ (round off to two decimal places).- GATE CE - 2025
- Civil Engineering
- Soil Mechanics
- Given the following values, calculate the required properties: \[ S = 0.67, \quad e = 0.6, \quad w = 0.15, \quad G = 2.67, \quad \gamma_w = 9.81 \, \text{kN/m}^3, \quad V = 5 \, \text{m}^3 \]
- GATE CE - 2025
- Geomatics Engineering
- Soil Mechanics
- Given the following data, determine the final water content \( W_2 \):
Given: - \( W_1 = 18\% \) - \( G_p = 2.74 \) - \( S_1 = 0.65 \) - \( S_2 = 0.852 \) - Find \( W_2 \)- GATE CE - 2025
- Civil Engineering
- Soil Mechanics
Questions Asked in GATE CE exam
- An electricity utility company charges ₹7 per kWh. If a 40-watt desk light is left on for 10 hours each night for 180 days, what would be the cost of energy consumption? If the desk light is on for 2 more hours each night for the 180 days, what would be the percentage-increase in the cost of energy consumption?
- GATE CE - 2025
- Logical and Analytical Reasoning Skills
- During determination of the bulk specific gravity of compacted bituminous specimen, the mass in air of the specimen is 1260 g and volume is 525 cm³. The density of water is 1.0 g/cm³. The theoretical maximum specific gravity of mix is 2.510. The percentage air voids in the compacted specimen is ......... (rounded off to 2 decimal places).
- GATE CE - 2025
- Gravity Dams and Spillways
In levelling between two points A and B on the opposite banks of a river, the readings are taken by setting the instrument both at A and B, as shown in the table. If the RL of A is 150.000 m, the RL of B (in m) is ....... (rounded off to 3 decimal places).
- GATE CE - 2025
- Surveying and Levelling
A one-way, single lane road has traffic that consists of 30% trucks and 70% cars. The speed of trucks (in km/h) is a uniform random variable on the interval (30, 60), and the speed of cars (in km/h) is a uniform random variable on the interval (40, 80). The speed limit on the road is 50 km/h. The percentage of vehicles that exceed the speed limit is ........ (rounded off to 1 decimal place).
- GATE CE - 2025
- Traffic signs
- A 5.0 m wide rectangular channel carries a discharge of 10 m³/s at a depth of 1.5 m under uniform flow. To produce critical flow conditions without affecting the upstream conditions, the channel bottom elevation should be raised (in m) by ........ (rounded off to 2 decimal places).
- GATE CE - 2025
- Microscopic and macroscopic parameters of traffic flow