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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.
| 1901. |
Consider the following statements related to Los Angeles Abrasion test on aggregates :1. It evaluates hardness of source - rock2. It has a coefficient of variation of about 30 percentWhich of the statements given above is/are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» B. 2 only | |
| 1902. |
Due to settlement of support at A of propped cantilever shown in the figure given below, what is the vertical reaction at B ? |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/45-1444-3.png"> | |
| 1903. |
A parabolic vertical curve is to be set out connecting two uniform grades of +0.6% and +.0%. The rate of change of grade is to be 0.06% per 30 m. The length of the curve will be |
| A. | 66 2/3 m |
| B. | 133 1/3 m |
| C. | 200 M |
| D. | 266 2/3 m |
| Answer» B. 133 1/3 m | |
| 1904. |
A wooden plank (sp. gr. 0.5) 1 m x 1 m x 0.5 m floats in water with 1.5 kN load on it with 1 m x 1 m surface horizontal. The depth of plank lying below water surface shall be |
| A. | 0.178 m |
| B. | 0.250 m |
| C. | 0.403 m |
| D. | 0.500 m |
| Answer» D. 0.500 m | |
| 1905. |
The phenomenon of reflection cracking is observed in which of the following ? |
| A. | Bituminous overlays provided over cracked cement concrete pavements |
| B. | Cement concrete overlays provided over cracked bituminous pavements. |
| C. | Bituminous overlays constructed in cold weather |
| D. | Cement concrete overlays provided over cement concrete pavements. |
| Answer» B. Cement concrete overlays provided over cracked bituminous pavements. | |
| 1906. |
What are the gases produced by landfills primarily comprised of? |
| A. | Carbon monoxide and hydrogen sulphide. |
| B. | Methane and carbondioxide |
| C. | Sulphur dioxide and nitrogendioxide |
| D. | Ethane and oxygen. |
| Answer» C. Sulphur dioxide and nitrogendioxide | |
| 1907. |
Consider the following statements regarding specific energy of flow in an open channel :1. There is only one specific energy curve for a given channel.2. Alternate depths are the depths of flow at which the specific energy is the same.3. Critical flow occurs when the specific energy is minimum.Of these statements : |
| A. | 1 and 2 are correct |
| B. | 1 and 3 are correct |
| C. | 2 and 3 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» E. | |
| 1908. |
Consider the following statements :I: To insert a 28 mm nominal diameter rivet, 29.5 mm rivet hole is made.II: Provision is made to allow temperature expansion of the bolt. |
| A. | both I and II are true |
| B. | I is true but II is false |
| C. | I is false but II is true |
| D. | both I and II are false |
| Answer» D. both I and II are false | |
| 1909. |
Two different granular soils are placed in a permeameter tube and flow is allowed to take place under a constant total head. The total head and pressure head at point A in centimeters, are respectively. |
| A. | 75, 75 |
| B. | 25, 75 |
| C. | 25, 25 |
| D. | 75, 25 |
| Answer» C. 25, 25 | |
| 1910. |
General shrinkage in cement concrete is caused by |
| A. | carbonation |
| B. | stresses due to external load |
| C. | drying the starting with a stiff consistency |
| D. | drying starting with a wetter consistency. |
| Answer» E. | |
| 1911. |
When the degree of consolidation is 50%, the time factor is about |
| A. | 0.2 |
| B. | 0.5 |
| C. | 1.0 |
| D. | 2.0 |
| Answer» B. 0.5 | |
| 1912. |
A close-coiled helical spring has 100 mm mean diameter and is mada of 20 turns to 10 mm diameter steel wire. The spring carries an axial load of 100 N Modulus of rigidity is 84 GPa. The shearing stress developed in the spring in N/mm2 is |
| A. | 120/ |
| B. | 160/ |
| C. | 100/ |
| D. | 80/ |
| Answer» E. | |
| 1913. |
Consider the following statements pertaining to plane table survey :1. Two-point problem is solved by mechanical method.2. Three-point problem is solved by Bessel's method.3. In two point problem, auxiliary station is required.Of these statements : |
| A. | 1 and 2 are correct |
| B. | 1 and 3 arc correct |
| C. | 2 and 3 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» E. | |
| 1914. |
If a member is subjected to tensile stress of px, compressive stress of py and tensile stress of pz along the x, y and z directions respectively, then the resultant strain 'ex' along the 'x' direction would be (E is Young's modulus of elasticity, is Poisson's ratio) |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-852-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-852-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-852-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-852-4.png"> |
| Answer» E. | |
| 1915. |
A cantilever is subjected to a uniformly distributed load W over its whole length 'L' and a concentrated upward force W at its free end. The deflection of the free end is |
| A. | zero |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-603-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-603-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-603-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-603-4.png"> | |
| 1916. |
The given figure shows the arrow diagram for a particular project. The arrow 'A' is known as |
| A. | critical activity |
| B. | sub-critical activity |
| C. | logic arrow |
| D. | dummy activity |
| Answer» D. dummy activity | |
| 1917. |
The axial load which just produces the condition of elastic instability in a column is |
| A. | Rankine load |
| B. | Euler load |
| C. | Yield load |
| D. | Crushing load |
| Answer» B. Euler load | |
| 1918. |
Given below are methods of compaction :1. Vibration technique 2. Flooding the soil 3. Sheeps-foot roller 4. Tandem roller5. Heavy weights dropped from a height.The methods suitable for cohesionless soils include |
| A. | 1, 2 and 3 |
| B. | 2, 3 and 4 |
| C. | 1, 2 and 5 |
| D. | 3, 4 and 5 |
| Answer» D. 3, 4 and 5 | |
| 1919. |
The ratio of torsional moments of resistance of a solid circular shaft of diameter D and a hollow shaft having external diameter D and internal diameter d is given by |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/10-48-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/10-48-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/10-48-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/10-48-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/10-48-2.png"> | |
| 1920. |
Consider the following statements relating to triaxial tests :1. Change in length of the specimen in a triaxial shear test is required to be accounted for in the calculation of stresses at failure.2. In 'Drained Triaxial Shear Test', drainage is permitted under a specified all-round pressure until consolidation is complete. The principal stress difference is then applied with no drainage being permitted.3. Unconfined compression test is a special case of triaxial shear test.Of these statements : |
| A. | 1 and 2 are correct |
| B. | 1 and 3 are correct |
| C. | 2 and 3 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» E. | |
| 1921. |
A lighthouse is visible just above the horizon at a certain station at the sea level. The distance between the station and the lighthouse is 40 km. The height of the lighthouse is approximately |
| A. | 187 m |
| B. | 137.7 m |
| C. | 107.7 m |
| D. | 87.3 m |
| Answer» D. 87.3 m | |
| 1922. |
Which of the following are the additional moments considered for design of slender compression member in lieu of deflectiion x and y directions ?(Where Pu is axial load; lex and ley are effective lengths in respective directions; D depth of section to major axis; b width of the member) |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1289-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1289-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1289-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1289-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/24-1289-4.png"> | |
| 1923. |
A motor shaft rotating with a speed of 90 rpm decelerates uniformly when the motor is switched off and stops in 40 sec. The number of revolutions made by the shaft in this time would be |
| A. | 10 |
| B. | 20 |
| C. | 30 |
| D. | 40 |
| Answer» D. 40 | |
| 1924. |
Which one of the following statements is correct ?The portal method of structural analysis is generally suitable for |
| A. | tall buildings |
| B. | low-rise buildings |
| C. | low-rise buildings with uniform framing |
| D. | low-rise buildings with non-uniform framing. |
| Answer» E. | |
| 1925. |
A cantilever beam 'A' with rectangular cross-section is subjected to a concentrated load at its free end. If width and depth of another cantilever beam 'B' are twice those of beam A, then the deflection at free end of the beam 'B' as compared to that of 'A' will be |
| A. | 6.25% |
| B. | 14% |
| C. | 23.6% |
| D. | 28% |
| Answer» B. 14% | |
| 1926. |
A clay sample has a void ratio of 0.54 in dry state. The specific gravity of soil solids is 2.7. What is the shrinkage limit of the soil ? |
| A. | 8.5% |
| B. | 10.0% |
| C. | 17.0% |
| D. | 20.0% |
| Answer» E. | |
| 1927. |
Which of the following are the purposes for use of steel bars reinforcement in cement concrete pavements ?1. To increase the flexural strength of concrete2. To prevent the onset of cracks3. To allow wider spacing of joints.Select the correct answer using the code given below : |
| A. | 1 and 2 only |
| B. | 2 and 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» C. 1 and 3 only | |
| 1928. |
A simply supported beam of span 'L' carries a concentrated load 'W' at mid-span. If the width 'b' of the beam is constant and its depth is varying throughout the span, then what should be its mid-span depth, when design stress is 'f' ? |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-399-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-399-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-399-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-399-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-399-4.png"> | |
| 1929. |
The following readings were taken with a Dumpy level and a 4 m levelling staff on a continuously sloping ground at 30 m intervals : 0.680 m, 1.455 m, 1.855 m, 2.330 m, 2.885 m, 3.380 m, 1.055 m. The R.L. of the fourth point was calculated to be 79.100 m. The R.L. of the point that was read 0.680 m is |
| A. | 80.750 m |
| B. | 79.780 m |
| C. | 78.420 m |
| D. | 77.740 m |
| Answer» B. 79.780 m | |
| 1930. |
Consider the following statements :1. In the laboratory consolidation test, initial compression is the result of displacement of soil particles.2. Primary consolidation is due to dissipation of pore water pressure.3. Secondary compression starts after complete dissipation of pore water pressure.4. Primary consolidation and secondary compression occur simultaneously.Which of the statements given above are correct ? |
| A. | 1 and 4 only |
| B. | 2 and 3 only |
| C. | 2 and 4 only |
| D. | 1 and 3 only |
| Answer» D. 1 and 3 only | |
| 1931. |
Given that for a channel section, the width of flange = b, the depth of the web between centres of flanges = h, the thickness of flange = t(, the moment of interia of the channel about the axis of bending = I, the distance 'e' of the shear centre outside the channel section from the mid-thickness of the web is: |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-856-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-856-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-856-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-856-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/42-856-4.png"> | |
| 1932. |
The effective flange area in tension of a plate girder is equal to (where Af is the area of each flange and Aw, is the web area). |
| A. | <i>A<sub>f</sub></i> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-970-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-970-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-970-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-970-4.png"> | |
| 1933. |
Consider the following statements :1. Alum coagulation decreases the alkalinity of water.2. Alum coagulation increases permanent hardness of water.3. Alum coagulation decreases pH of water.4. Alum coagulation produces aluminium hydroxide flocks in the flocculation process.Which of the statements given above are correct ? |
| A. | 1, 2, 3 and 4 |
| B. | 1, 3 and 4 only |
| C. | 1 and 2 only |
| D. | 2, 3 and 4 only |
| Answer» B. 1, 3 and 4 only | |
| 1934. |
Which one of the following statements is correct ?Linear arch is one which represents : |
| A. | centre line of an arch |
| B. | variation of bending moment |
| C. | thrust line |
| D. | variation of shear force |
| Answer» D. variation of shear force | |
| 1935. |
The two-peg test in the adjustment of a dumpy level employs the principle that |
| A. | equal lengths at back sight and fore sight do not affect the difference in level. |
| B. | reciprocal levelling eliminates errors of non-parallel instrument and collimation axes. |
| C. | two readings from the same station will minimize errors in bubble tube axis. |
| D. | correction is made for verticle axis at one peg and for horizontal axis at the other peg. |
| Answer» B. reciprocal levelling eliminates errors of non-parallel instrument and collimation axes. | |
| 1936. |
Undisturbed soil samples are required for conducting |
| A. | hydrometer test |
| B. | shrinkage limit test |
| C. | consolidation test |
| D. | specific gravity test |
| Answer» D. specific gravity test | |
| 1937. |
Contour interval on a map sheet denotes |
| A. | vertical distance of contour lines above the datum plane |
| B. | vertical distance between two successive contour lines |
| C. | slope distance between two successive contour lines |
| D. | horizontal distance between two successive contour lines |
| Answer» C. slope distance between two successive contour lines | |
| 1938. |
Which one of the following is the correct statement ? A particle in simple harmonic motion while passing through the mean position will have |
| A. | minimum kinetic energy and minimum potential energy |
| B. | maximum kinetic energy and maximum potential energy |
| C. | maximum potential energy and minimum kinetic energy |
| D. | maximum kinetic energy and minimum potential energy |
| Answer» E. | |
| 1939. |
The following observation relate to designing of laced column :1. Single lacing systems on opposite planes shall preferably be in the same direction so that one is the shadow of the other.2. Lacing bar should only be a flat.3. The slenderness ratio of the lacing bars for compression shall not exceed 180.4. Laced compression members are to be provided with tie plates of ends.Of these observations : |
| A. | 1, 2, 3 and 4 are correct |
| B. | 1, 3 and 4 are correct |
| C. | 2 and 3 are correct |
| D. | 1 and 4 are correct |
| Answer» E. | |
| 1940. |
In signals system design of Railways the distance at which the outer signal is to be placed is decided on basis of the |
| A. | Allowable speed |
| B. | Running speed |
| C. | Minimum speed |
| D. | Journey speed |
| Answer» B. Running speed | |
| 1941. |
Which one of the following is the best method for the stabilization of the clayey subgrade in water-logged area ? |
| A. | Cement stabilization |
| B. | Lime stabilization |
| C. | Bitumen stabilization |
| D. | Stabilization by grouting |
| Answer» C. Bitumen stabilization | |
| 1942. |
For Froude number of a hydraulic jump is 5.5. The jump can be classified as a/an: |
| A. | undularjump |
| B. | oscillating jump |
| C. | weak jump |
| D. | steady jump |
| Answer» E. | |
| 1943. |
A cantilever pin-jointed truss carries one load P at the point Z as shown in the given figure. The hinges in the vertical wall are at A and D. The truss has only three horizontal members AC, CG and GZ.The nature of force in member AB |
| A. | is tensile |
| B. | is zero |
| C. | is compressive |
| D. | cannot be predicted |
| Answer» E. | |
| 1944. |
A saturated stiff clay has unit weight 2 gm/cm3 and unconfined compressive strength 2 kg/cm2. The depth of tension crack that would develop in this clay is |
| A. | 2 m |
| B. | 5 m |
| C. | 10 m |
| D. | 20 m |
| Answer» B. 5 m | |
| 1945. |
Which one of the following methods is generally considered the best for tunnel ventilation ? |
| A. | Driving a drift through the tunnel |
| B. | 'Blow in' method |
| C. | 'Blow out' method |
| D. | Combination of 'Blow in' and 'Blow out' methods |
| Answer» E. | |
| 1946. |
A circular shaft subjected to torsion undergoes a twist of 1 in a length of 120 cm. If the maximum shear stress induced is limited to 1000 kg/cm2 and if modulus of rigidity G = 0.8 x 106 kg/cm2, then the radius of the shaft should be |
| A. | /18 |
| B. | 18/ |
| C. | /27 |
| D. | 27/ |
| Answer» E. | |
| 1947. |
A bar 4 cm in diameter is subjected to an axial load of 41. The extension of the bar over a gauge length of 20 cm is 0.03 cm. The decrease in diameter is 0.0018 cm. The Poisson's ratio is |
| A. | 0.25 |
| B. | 0.30 |
| C. | 0.33 |
| D. | 0.35 |
| Answer» C. 0.33 | |
| 1948. |
For the beam shown in figure, what are the distribution factors at joint B ? |
| A. | 0.4, 0.6 |
| B. | 0.5, 0.5 |
| C. | 0.6, 0.4 |
| D. | 0.65, 0.35 |
| Answer» C. 0.6, 0.4 | |
| 1949. |
Consider the following statements :The daily per capita consumption of water apparently increases with1. higher standard of living of people.2. availability of sewerage in the city.3. metered water supply.4. wholesome and potable quality of water.Which of these statements are correct ? |
| A. | 1, 2 and 3 |
| B. | 2, 3 and 4 |
| C. | 1, 3 and 4 |
| D. | 1, 2 and 4 |
| Answer» E. | |
| 1950. |
A normally consolidated clay layer settles by 25 mm when the effective stress is increased from 15 kPa to 30 kPa. If the effective stress is later increased further from 30 kPa to 60 kPa, then the additional settlement would be |
| A. | 25 mm |
| B. | 50 mm |
| C. | 75 mm |
| D. | 100 mm |
| Answer» B. 50 mm | |