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MCQOPTIONS
This section includes 5814 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 4751. |
Cohesionless soil is |
| A. | sand |
| B. | silt |
| C. | clay |
| D. | clay and silt. |
| Answer» B. silt | |
| 4752. |
Failure of a slope occurs only when total shear force is |
| A. | equal to total shearing strength |
| B. | greater than total shearing strength |
| C. | less than total shearing strength |
| D. | none of these. |
| Answer» C. less than total shearing strength | |
| 4753. |
The seepage exit gradient in a soil is the ratio of |
| A. | total head to the length of seepage |
| B. | flow line to slope |
| C. | head upstream to that at downstream |
| D. | head loss to the length of the seepage |
| E. | none of these. |
| Answer» E. none of these. | |
| 4754. |
The shearing force acting along the slice of a curved surface of slippage, causes the soil to slide |
| A. | down at the centre |
| B. | down at the toe |
| C. | upward at the centre |
| D. | none of these. |
| Answer» B. down at the toe | |
| 4755. |
The area of cross-section A at failure or during any stage of Triaxial Compression Test and its initial length (L) and volume (V), are related by the equation |
| A. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/37-11-116-1.png"> |
| B. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/37-11-116-2.png"> |
| C. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/37-11-116-3.png"> |
| D. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/37-11-116-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/37-11-116-4.png"> | |
| 4756. |
When a cohesionless soil attains quick condition, it looses |
| A. | shear strength |
| B. | bearing capacity |
| C. | both (a) and (b) |
| D. | neither (a) nor (6). |
| Answer» D. neither (a) nor (6). | |
| 4757. |
'Loess' is silty clay formed by the action of |
| A. | water |
| B. | glacier |
| C. | wind |
| D. | gravitational force. |
| Answer» D. gravitational force. | |
| 4758. |
The maximum possible value nf dry density is referred to as |
| A. | dry density |
| B. | zero air voids |
| C. | saturation dry density |
| D. | all the above. |
| Answer» E. | |
| 4759. |
The ratio of the head recovered to the head put in, is known as |
| A. | efficiency |
| B. | sensitivity |
| C. | flexibility |
| D. | modular limit. |
| Answer» B. sensitivity | |
| 4760. |
The water face of the guide banks, is protected by |
| A. | one men stone pitching |
| B. | two man stone pitching |
| C. | three man stone pitching |
| D. | four man stone pitching |
| E. | five man stone pitching. |
| Answer» B. two man stone pitching | |
| 4761. |
The level of the fioor of a syphon aqueduct can be obtained |
| A. | by subtracting the depth of the culvert from the canal bed level |
| B. | by subtracting the thickness of culvert plus the depth of the culvert from the canal bed level |
| C. | both (a) and (b) |
| D. | none of these. |
| Answer» C. both (a) and (b) | |
| 4762. |
If D1 and D2 are depths of water upstream and down stream of a hydraulic jump, the loss of head at the jump, is |
| A. | <img src="/_files/images/civil-engineering/irrigation/20-15-93-1.png"> |
| B. | <img src="/_files/images/civil-engineering/irrigation/20-15-93-2.png"> |
| C. | <img src="/_files/images/civil-engineering/irrigation/20-15-93-3.png"> |
| D. | <img src="/_files/images/civil-engineering/irrigation/20-15-93-4.png"> |
| Answer» E. | |
| 4763. |
A fall which maintains its depth, is |
| A. | a trapezoidal notch fall |
| B. | a low weir fall |
| C. | a rectangular notch fall |
| D. | all the above. |
| Answer» E. | |
| 4764. |
The uplift pressure on the roof of an inverted syphon, is maximum when |
| A. | drain in running dry |
| B. | canal is running dry |
| C. | canal is running with F.S.L. |
| D. | drain is running with H.F.L. |
| Answer» E. | |
| 4765. |
If Dc is the critical depth, D is the depth of water down stream and HL is the total head loss at the cistern of a vertical fall, the depth x of the cistern below the bed level down stream suggested by Blench, is |
| A. | <img src="/_files/images/civil-engineering/irrigation/20-15-95-1.png"> |
| B. | <img src="/_files/images/civil-engineering/irrigation/20-15-95-2.png"> |
| C. | <img src="/_files/images/civil-engineering/irrigation/20-15-95-3.png"> |
| D. | <img src="/_files/images/civil-engineering/irrigation/20-15-95-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/irrigation/20-15-95-3.png"> | |
| 4766. |
The ratio of the rate of change of discharge of an outlet and parent channel, is known as |
| A. | efficiency |
| B. | sensitivity |
| C. | flexibility |
| D. | modular limit. |
| Answer» D. modular limit. | |
| 4767. |
Pick up the cohesive soil from the following: |
| A. | Red earth |
| B. | Clay |
| C. | Black cotton soil |
| D. | Compacted ground. |
| Answer» D. Compacted ground. | |
| 4768. |
Pile foundations are generally preferred to for |
| A. | bridge foundations |
| B. | sky scrapper buildings |
| C. | residential buildings |
| D. | runways. |
| Answer» C. residential buildings | |
| 4769. |
The angle of internal friction of clays, is usually |
| A. | 0 to 5 |
| B. | 5 to 20 |
| C. | 20 to 30 |
| D. | 30 to 45 |
| Answer» C. 20 to 30 | |
| 4770. |
The phreatic line in an earth dam may be |
| A. | circular |
| B. | elliptical |
| C. | parabolic |
| D. | a straight line |
| E. | all the above. |
| Answer» D. a straight line | |
| 4771. |
The method of the slices is applicable to |
| A. | homogenous soils |
| B. | stratified soils |
| C. | saturated soils |
| D. | non-uniform slopes |
| E. | all the above. |
| Answer» B. stratified soils | |
| 4772. |
When the seepage pressure becomes equal to the pressure due to submerged weight of a soil, the effective pressure is reduced to zero and the soil particles have a tendency to move up in the direction of flow. This phenomenon is generally known |
| A. | quick condition |
| B. | boiling condition |
| C. | quick sand |
| D. | all the above. |
| Answer» E. | |
| 4773. |
The maximum shear stress occurs on the filament which makes an angle with the horizontal plane equal to |
| A. | 30 |
| B. | 45 |
| C. | 60 |
| D. | 90 |
| Answer» C. 60 | |
| 4774. |
The specific gravity of quartz, is |
| A. | 2.65 |
| B. | 2.72 |
| C. | 2.85 |
| D. | 2.90 |
| Answer» B. 2.72 | |
| 4775. |
For determining the moisture content of a soil sample, the following data is available Weight of container = 260 g, Weight of soil sample and = 320 g container, Weight of soil sample (dried) and = 310 g container. The moisture content of the soil sample, is |
| A. | 15% |
| B. | 18% |
| C. | 20% |
| D. | 25% |
| Answer» D. 25% | |
| 4776. |
Buoyant unit weight equals the saturated density |
| A. | multiplied by unit weight of water |
| B. | divided by unit weight of water |
| C. | plus unit weight of water |
| D. | minus unit weight of water. |
| Answer» E. | |
| 4777. |
If the cohesive force, (c), is 1.5 t/m2, the density ( ) of the soil is 2.0 t/m3, factor of safety (F) is 1.5 and stability factor (Sn) is 0.05, the safe height of the lope, is |
| A. | 5 metres |
| B. | 8 metres |
| C. | 10 metres |
| D. | 12 metres |
| Answer» D. 12 metres | |
| 4778. |
The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated |
| A. | sands |
| B. | clays |
| C. | gravels |
| D. | highly organic soils. |
| Answer» C. gravels | |
| 4779. |
The specific yield of soil depends upon |
| A. | compaction of stratum |
| B. | distribution of pores |
| C. | shape and size of particles |
| D. | all the above. |
| Answer» E. | |
| 4780. |
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 |
| Answer» D. 15.0 m | |
| 4781. |
The degree of saturation of the soil sample stated in Q. No, 216, is |
| A. | 60% |
| B. | 62% |
| C. | 64% |
| D. | 66% |
| Answer» D. 66% | |
| 4782. |
Number of piles required to support a column, is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 4783. |
The soil moisture driven off by heat, is called |
| A. | free water |
| B. | hydroscopic water |
| C. | gravity water |
| D. | none of these. |
| Answer» C. gravity water | |
| 4784. |
The direct shear test suffers from the following disadvantage: |
| A. | Drain condition cannot be controlled |
| B. | Pore water pressure cannot be measured |
| C. | Shear stress on the failure plane is not uniform. |
| D. | The area under the shear and vertical loads does not remain constant throughout the test |
| E. | All the above. |
| Answer» D. The area under the shear and vertical loads does not remain constant throughout the test | |
| 4785. |
For shear strength, triaxial shear test is suitable because |
| A. | it can be performed under all three drainage conditions |
| B. | precise measurement of the pore pressure and volume change during the test is possible |
| C. | stress distribution on the failure plane, is uniform |
| D. | state of stress within the specimen during any stage of the test as well as at failure, is completely determined |
| E. | all the above. |
| Answer» F. | |
| 4786. |
W is the weight of soil having a moisture content . If V is the volume of proctor's mould, the dry density of the soil is |
| A. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/46-11-229-1.png"> |
| B. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/46-11-229-2.png"> |
| C. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/46-11-229-3.png"> |
| D. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/46-11-229-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/46-11-229-4.png"> | |
| 4787. |
If the specific gravity of a soil particle of 0.05 cm diameter is 2.67, its terminal velocity while settling in distilled water of viscosity, 0.01 poise, is |
| A. | 0.2200 cm/sec |
| B. | 0.2225 cm/sec |
| C. | 0.2250 cm/sec |
| D. | 0.2275 cm/sec |
| E. | 0.2300 cm/sec |
| Answer» E. 0.2300 cm/sec | |
| 4788. |
The compression index of a soil |
| A. | decreases with an increase in the liquid limit |
| B. | increases with an increase in the liquid limit |
| C. | decreases with an increase in the plastic limit |
| D. | is not related with plastic limit. |
| Answer» C. decreases with an increase in the plastic limit | |
| 4789. |
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. | inversely proportional to the voids ratio |
| E. | none of these. |
| Answer» F. | |
| 4790. |
Water content of a soil sample is the difference of the weight of the given sample at the given temperature and the weight determined after drying it for 24 hours at temperature ranging from |
| A. | 80 to 90 C |
| B. | 90 to 95 C |
| C. | 95 to 100 C |
| D. | 103 to 105 C |
| E. | 105 to 110 C |
| Answer» F. | |
| 4791. |
The ratio of the volume of voids to the total volume of the given soil mass, is known |
| A. | porosity |
| B. | specific gravity |
| C. | void ratio |
| D. | water content. |
| Answer» B. specific gravity | |
| 4792. |
The ratio of settlement at any time 't' to the final settlement, is known as |
| A. | co-efficient of consolidation |
| B. | degree of consolidation |
| C. | consolidation index |
| D. | consolidation of undisturbed soil. |
| Answer» C. consolidation index | |
| 4793. |
If L and B are the length and breadth of a footing, e the eccentricity along the length and P and Q are the axial force and bearing capacity of the soil, then, to avoid tension, |
| A. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/43-11-184-1.png"> |
| B. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/43-11-184-2.png"> |
| C. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/43-11-184-3.png"> |
| D. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/43-11-184-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/43-11-184-2.png"> | |
| 4794. |
The Westergaard analysis is used for |
| A. | sandy soils |
| B. | cohesive soils |
| C. | stratified soils |
| D. | clayey soils. |
| Answer» D. clayey soils. | |
| 4795. |
260 g of wet soil was taken in a pycnometer jar of weight 400 g in order to find the moisture content in the soil, with specific gravity of soil particles 2.75. The weight of soil and remaining water filled in pycnometer without air bubbles was 1415 g and the weight of pycnometer filled with water alone was 1275 g. The moisture content in the soil is |
| A. | 24.2% |
| B. | 18.2% |
| C. | 53.8% |
| D. | none of these. |
| Answer» C. 53.8% | |
| 4796. |
For determing the specific gravity of soil solids, using a pycnometer of 500 cc., the following data is available : Weight of dry empty pycnometer = 125 g Weight of dried soil and pycnometer = 500 g Weight of dried soil and distilled = 850 g water filled in pycnometer up to top The specific gravity of soil soilds, is |
| A. | 2.0 |
| B. | 2.25 |
| C. | 2.50 |
| D. | 2.75 |
| Answer» D. 2.75 | |
| 4797. |
Pick up the in-correct statement from the following: The soils which contain montmorillonite minerals |
| A. | swell more when wet |
| B. | shrink more when dry |
| C. | possess high plasticity |
| D. | possess high coefficient of internal coefficient |
| E. | None of these. |
| Answer» E. None of these. | |
| 4798. |
A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is |
| A. | 100 tonnes |
| B. | 50 tonnes |
| C. | 20 tonnes |
| D. | 10 tonnes. |
| Answer» E. | |
| 4799. |
If the specific gravity and voids in soil sample are G and e respectively, the hydraulic gradient i, is |
| A. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/34-11.79-1.png"> |
| B. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/34-11.79-2.png"> |
| C. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/34-11.79-3.png"> |
| D. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/34-11.79-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/34-11.79-2.png"> | |
| 4800. |
The shear strength of a soil |
| A. | increases with an increase in the normal stress |
| B. | is proportional to the cohesion of the soil |
| C. | is generally known as the strength of the soil |
| D. | is proportional to the tangent of the angle of internal friction |
| E. | all the above. |
| Answer» F. | |