SOIL MECHANICS(JKSSB JE CIVIL PREVIOUS YEAR PAPERS DECEMBER 2022)

 

JKSSB JE CIVIL PREVIOUS PAPERS
JAL SHAKTI
05 DEC 2022 (SHIFT-I)
(SOIL MECHANICS)

Q.NO.1. Density index (ID) is expressed as
A.    ID = emax - emin / emax - e
B.     ID = emax + emin / emax - e
C.     ID = emax – e / emax - emin
D.    ID = emax + e / emax - emin
Ans. C
Q.NO.2. Symbol used for silt component (IS-1498-1970) is
A.    S
B.     C
C.     M
D.    O
Ans. C
Q.NO.3. Seepage pressure always acts
A.    In the direction of flow
B.     Opposite the direction of flow
C.     Independent the direction of flow
D.    None of these
Ans. A
Q.NO.4. Specific volume is the ………. of mass density
A.    Reciprocal
B.     Equal
C.     Double
D.    Triple
Ans. A
Q.NO.5. Relative consistency (Ic) is defined as ration of the
A.    Plastic limit minus the natural water content to plasticity index
B.     Shrinkage limit minus the natural water content to plasticity index
C.     Liquid limit minus the natural water content to plasticity index
D.    Liquidity index to plasticity index
Ans. C
Q.NO.6. Ultimate bearing capacity of soil defined as
A.    It is the maximum net pressure intensity at base of foundation causing shear failure of soil
B.     It is the minimum gross pressure intensity at base of foundation causing shear failure of soil
C.     It is the total pressure at base of footing due to weight of superstructure
D.    It is the maximum pressure which the soil can carry without risk of failure
Ans. B
Q.NO.7. What is the particle size of medium sand?
A.    0.25 to 0.5 mm
B.     0.6 to 0.8 mm
C.     8 to 16 mm
D.    1.2 to 1.8 mm
Ans. A
Q.NO.8. ………….is to provide reliable, specific and detailed information about soil and ground water conditions of the soil.
A.    Seepage
B.     Permeability
C.     Soil exploration
D.    None of these
Ans. C
Q.NO.9. Air voids line
A.    A line shows water content saturated density relation for the compacted soil having constant percentage air voids
B.     A line shows water content bulk density relation for the compacted soil having constant percentage air voids
C.     A line shows water content dry density relation for the compacted soil having constant percentage air voids
D.    A line shows water content specific gravity relation for the compacted soil having constant percentage air voids
Ans. C
Q.NO.10. A soil sample has porosity of 40%. The specific gravity od solids is 2.70. Find the dry density?
A.    51.98KN/M3
B.     51.89KN/M3
C.     15.98KN/M3
D.    15.89KN/M3
Ans. D
Q.NO.11. In case of perfectly saturated soil, the voids are filled completely with
A.    Air only
B.     Water only
C.     Both air and water
D.    Soil grains
Ans. B
Q.NO.12. Rubber balloon method is used to determine in-situ
A.    Density
B.     Void ratios
C.     Density index
D.    All of these
Ans. A
Q.NO.13. Which of the following property of rock is a measure of its ability to hold water?
A.    Softness
B.     Hardness
C.     Permeability
D.    Porosity
Ans. D
 

JKSSB JE CIVIL PREVIOUS PAPERS
JAL SHAKTI
05 DEC 2022 (SHIFT-II)
(SOIL MECHANICS)

Q.NO.14. Following is/are the test used to determine shearing resistance of soil
A.    Drained test
B.     Direct shear test
C.     Quick test
D.    All of these
Ans. D
Q.NO.15. For walls more than 6m height, thickness of retaining wall at the bottom is equal to 0.4 times the height plus:
A.    10cm
B.     20cm
C.     30cm
D.    40cm
Ans. C
Q.NO.16. Critical gradient ic is expressed as
A.    G-1/1+e
B.     G+e/G-e
C.     G+1/1-e
D.    G-1/1-e
Ans. A
Q.NO.17. Secondary compression or consolidation is
A.    When the excess pore pressure due to consolidation has been dissipated, the change in void ratio continue, but generally at a reduced rate
B.     When the excess pore pressure due to consolidation has been dissipated, the change in void ratio continue, but generally at an increase rate
C.     When the excess pore pressure due to consolidation has been dissipated, the change in void ratio is constant
D.    None of these
Ans. A
Q.NO.18. For the application of stabilization of rock slopes……………is used
A.    Shotcrete
B.     Asphalt concrete
C.     Bleeding
D.    None of these
Ans. A
Q.NO.19. Which of the following method can be used to determine water content of soil sample?
A.    Alcohol method
B.     Calcium carbide method
C.     Sand bath method
D.    All of these
Ans. D
Q.NO.20. In CBR (California Bearing Ratio) test, the value of CBR is calculated at:
A.    2.5 mm penetration only
B.     5 mm penetration only
C.     Both 2.5 and 5mm penetration
D.    10 mm penetration only
Ans. C
Q.NO.21. Safe bearing capacity of fine sand, loose and dry (cohesion less soils) as per IS 190-1961 is
A.    450 KN/m2
B.     250 KN/m2
C.     150 KN/m2
D.    100 KN/m2
Ans. D
Q.NO.22. Which of the following is required when there is presence of excess salts in the soil?
A.    High water storage efficiency
B.     Low water storage efficiency
C.     High water application efficiency
D.    High water usage efficiency
Ans. A
Q.NO.23. Coefficient of permeability for clay in cm/sec is
A.    1.0 and greater
B.     0.05-0.001
C.     0.0004-0.00001
D.    0.000001 and smaller
Ans. D
Q.NO.24. In case of dry soil mass, the voids are filled completely with
A.    Air only
B.     Water only
C.     Both air and water
D.    Soil grains
Ans. A
Q.NO.25. Factor not affecting soil compacted density is
A.    Water content
B.     Addition of admixture
C.     Type of compaction
D.    Specific gravity
Ans. D
Q.NO.26. A soil is said to be poorly graded soil
A.    If it has particles of all sizes
B.     It has most of the particles of different size
C.     Uniformly graded soil
D.    All of these
Ans. C
Q.NO.27. Solonetz soil is also termed as
E.     Black alkali soil
F.      White alkali soil
G.    Highly saline soil
H.    Non-saline soil
Ans. A 

JKSSB JE CIVIL PREVIOUS PAPERS
JAL SHAKTI
06 DEC 2022 (SHIFT-I)
(SOIL MECHANICS)

Q.NO.28. Among the following salt is also called black alkali?
A.    Na2CO3
B.     Na2SO4
C.     NaCl
D.    NaOH
Ans. A
Q.NO.29. Consolidation test data obtained by consolidometer in laboratory used to determine
A.    Coefficient of volume change
B.     Coefficient of consolidation
C.     Coefficient of permeability
D.    All of these
Ans. D
Q.NO.30. Pycnometer is used to determine
A.    Dry density of soil
B.     Water content of soil
C.     Field density of soil
D.    Grain size of soil
Ans. B
Q.NO.31. For new embankments in black cotton soil, the material used as blanket is:
E.     Sand
F.      Moorum
G.    Coal ash
H.    Broken stone
Ans. B
Q.NO.32. Which of the following is not the part of soil water, according to the phenomenological?
E.     Ground water
F.      Capillary water
G.    Pore water
H.    Adsorbed water
Ans. C
Q.NO.33. Water-plasticity ratio is also called
A.    Plasticity index
B.     Consistency index
C.     Liquidity index
D.    None of these
Ans. C
Q.NO.34. The mass of solids per unit of total volume of the soil mass is known as
A.    Dry density
B.     Density of solids
C.     Saturated density
D.    Submerged density
Ans. A
Q.NO.35. symbol used for cobble component (IS-1498-1970) is
A.    C
B.     B
C.     G
D.    None
Ans. D
Q.NO.36. Hard foundations are generally available in…………...
A.    Alluvial soils
B.     Nonalluvial soils
C.     Black soil
D.    None of the given options
Ans. B
Q.NO.37. Specific weight of water is
E.     1000 knew/m3
F.      9.0 kN/m3
G.    1000 kg/m3
H.    9.8 kN/m3
Ans. D
Q.NO.38. Methods of determination of coefficient of consolidation is
A.    Only square root of time fitting method
B.     Only logarithm of time fitting method
C.     Both square root of time fitting method and logarithm of time fitting method
D.    None of these
Ans. C

JKSSB JE CIVIL PREVIOUS PAPERS
JAL SHAKTI
06 DEC 2022 (SHIFT-II)
(SOIL MECHANICS)

Q.NO.39. The value of group index of a soil varies from:
A.    0 to 10
B.     20 to 30
C.     30 to 40
D.    0 to 20
Ans. D
Q.NO.40. In India what is the problem for artificial channels?
A.    Formations of depressions
B.     Formation of alluvial soil
C.     Untimely rains
D.    Improper usage of channels
Ans. B
Q.NO.41. What is the SI unit of specific gravity?
A.    Kg/m3
B.     kB/m3
C.     m3/kg
D.    No units
Ans. D
Q.NO.42. Indian standard specifies ……………...as the specific temperature for reporting the specific gravity
A.    28oC
B.     25oC
C.     26oC
D.    27oC
Ans. D
Q.NO.43. Compaction is a 
A.    Gradual process of volume reduction under sustained loading
B.     Process by which soil particle are naturally rearranged a packed together into closer state of contact
C.     Process by which soil particle are artificially rearranged a packed together into closer state of contact by mechanical mean
D.    None of these
Ans. C
Q.NO.44. When the soil mass is saturated, its bulk density is called
A.    Dry density
B.     Density of solids
C.     Saturated density
D.    Submerged density
Ans. C
Q.NO.45. In seepage pressure, if the flow occurs in downward direction, the effective pressure will be
A.    Decrease
B.     No change
C.     Increase
D.    Double
Ans. C
Q.NO.46. ………………. soils are generally found in a mountainous region
A.    Alluvial soils
B.     Non-alluvial soils
C.     Black soils
D.    None of these
Ans. B
Q.NO.47. Moisture content of soil is defined as the
A.    Ratio of weight of solids to weight of water
B.     Ratio of weight of voids to weight of water
C.     Ratio of weight of water to weight of solids
D.    Ratio of weight of water to weight of voids
Ans. C
Q.NO.48. Which statement is true for the purpose of soil exploration
A.    Occurrence and extent of soil and rock strata needed
B.     Nature and engineering property of soil and rock information needed
C.     The location of ground water and its variation needed
D.    All of these
Ans. D
Q.NO.49. Indirect methods to determine coefficient of permeability is/are
A.    Computation from grain size
B.     Horizonal capillary test
C.     Consolidation test data
D.    All of these
Ans. D
Q.NO.50. The bulk density of commonly available ordinary cement is:
A.    1440 kg/m3
B.     1360 kg/m3
C.     1400 kg/m3
D.    1640 kg/m3
Ans. A
 
 
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