MCQOPTIONS
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MCQOPTIONS
This section includes 1888 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
A Rankine (oval) half-body is subjected to a two-dimen-sional flow ( coordinate directions from origin ) with uniform velocity , resulting in typical streamlines as shown in the figure by dotted lines. The point on the body surface is |
| A. | separation point |
| B. | stall point |
| C. | stagnation point |
| D. | point of maximum velocity |
| Answer» D. point of maximum velocity | |
| 52. |
A projectile is fired horizontally with a velocity of 6 m/s from a point of height m above and 12 m away from an object. What is the value of required so that projectile hits the object ? |
| A. | 4.9 m |
| B. | 9.8 m |
| C. | 6 m |
| D. | 19.6 m |
| Answer» E. | |
| 53. |
What are the bending moments at the ends and of a uniform beam fixed in direction and position at and when acted upon by two concentrated loads at l/3rd span as shown in the figure ? |
| A. | 2/9 |
| B. | 4/9 |
| C. | 6/9 |
| D. | 8/9 |
| Answer» B. 4/9 | |
| 54. |
Consider the following factors :1. Mass of ships to be berthed2. Overall transit time3. Speed of berthing4. Environmental conditions of the portWhich of these factors are taken into account while selecting the type of fender system ? |
| A. | 1, 2 and 3 |
| B. | 2, 3 and 4 |
| C. | 1, 3 and 4 |
| D. | 1 and 4 |
| Answer» D. 1 and 4 | |
| 55. |
Consider the following assumptions :1. Failure occurs on a plane surface.2. Wall is smooth but not necessarily vertical.3. Failure wedge is a rigid body.Coulomb's theory of earth pressure is based on assumptions |
| A. | 1, 2 and 3 |
| B. | 1 and 3 |
| C. | 1 and 2 |
| D. | 2 and 3 |
| Answer» C. 1 and 2 | |
| 56. |
Consider the following stages in the manufacturing of bricks :1. Weathering2. Moulding3. TemperingThe correct sequence of these stages in the manufacturing of the bricks, is |
| A. | 1, 2, 3 |
| B. | 2, 3, 1 |
| C. | 1, 3, 2 |
| D. | 3, 2, 1 |
| Answer» D. 3, 2, 1 | |
| 57. |
A 2-metre diameter water pipe is required to withstand a 200 meter head of water. Assuming the limiting tensile stress for the pipe material to be 200 kg/cm, the minimum thickness of the material of the pipe to be used will have to be |
| A. | 5 cm |
| B. | 10 cm |
| C. | 15 cm |
| D. | 20 cm |
| Answer» C. 15 cm | |
| 58. |
In the preliminary treatment of wastewater, skimming tanks are often included in the treatment scheme. Various features of skimming tanks are that these :1. can remove general floating matter.2. can remove oily and greasy matter.3. have detention time of 30 min.4. employ compressed air blown through diffusers.Which of these statements are correct ? |
| A. | 1 and 3 |
| B. | 2 and 4 |
| C. | 2 and 3 |
| D. | 1 and 2 |
| Answer» C. 2 and 3 | |
| 59. |
Consider the following statements :1. A dummy activity is artificially introduced in a network when necessary.2. A dummy activity consumes some time.3. A dummy activity is represented by a dotted arrow.4. A dummy activity must necessarily be introduced in every network. Which of the above statements are correct ? |
| A. | 1, 2 and 3 |
| B. | 1 and 3 |
| C. | 2, 3 and 4 |
| D. | 1 and 2 |
| Answer» C. 2, 3 and 4 | |
| 60. |
Consider the following statements :Selection of the type and grade of the bituminous binder is made on the basis of1. cost of the binder material.2. climatic conditions of the area and the construction technique.3. degree of importance of the road.4. thickness of pavement layer to be constructed.Which of these statements is/are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | 1, 2 and 4 |
| D. | 1, 2 and 3 |
| Answer» C. 1, 2 and 4 | |
| 61. |
A municipal sewage has of 200 mg/. It is proposed to treat it and dispose off into a marine environment. For what minimum efficiency should the sewage treatment plant be designed ? |
| A. | 85% |
| B. | 60% |
| C. | 50% |
| D. | 33.67% |
| Answer» B. 60% | |
| 62. |
Consider the following statements :Ventilation of sewer lines is necessary to1. avoid building up to sewer gases.2. ensure atmospheric pressure in the waste water surface.3. ensure the safety of sewer maintenance people.4. provide oxidation facility to sewage.Which of these statements are correct ? |
| A. | 1, 2 and 4 |
| B. | 1, 3 and 4 |
| C. | 2, 3 and 4 |
| D. | 1, 2 and 3 |
| Answer» E. | |
| 63. |
For fish habitat in a river, the dissolved oxygen required is |
| A. | 2 mg/ |
| B. | 4 mg/ |
| C. | 8 mg/ |
| D. | 10 mg |
| Answer» C. 8 mg/ | |
| 64. |
Two forces = 6 and = 10 act on a particle and their lines of action are inclined to each other at an angle of 60°. What is the magnitude of the third force which will keep the particle in equilibrium ? |
| A. | 13.30 N |
| B. | 13.89 N |
| C. | 14.00 N |
| D. | 14.02 N |
| Answer» D. 14.02 N | |
| 65. |
Four bolts share the load as shown in the figure. The shearc strength of bolt is 30 kN and tension strength of bolt is 40 kN. Which one of the following is the value of ? |
| A. | 96 kN |
| B. | 105 kN |
| C. | 117 kN |
| D. | 134 kN |
| Answer» E. | |
| 66. |
The object of chain and cross-staff survey is to1. locate the boundaries of an area.2. plot the figure to a scale.3. find the area of the plot.4. find the reduced levels of the plot.Which of the above statements is/are correct ? |
| A. | 1, 2, 3 and 4 |
| B. | 1, 2 and 3 |
| C. | 1 and 2 |
| D. | 4 alone |
| Answer» C. 1 and 2 | |
| 67. |
Which of the following are claimed as advantageous in respect of aerobic sludge digestion as compared to anaerobic sludge digestion ?1. Lower BOD concentration in supernatant liquor.2. Production of a sludge with excellent dewatering propensity.3. Greater production of methane.4. Lesser operating cost.5. Lesser capital cost.Select the correct answer using the codes given below : |
| A. | 1, 2 and 4 |
| B. | 2, 3, 4 and 5 |
| C. | 3, 4 and 5 |
| D. | 1, 2 and 5 |
| Answer» E. | |
| 68. |
Which one of the following statements is not correct ?A control section in an open channel is the site |
| A. | where the flow quantity can be controlled |
| B. | at which flow is known to be critical |
| C. | where the discharge can be measured |
| D. | where the specific energy is determined |
| Answer» C. where the discharge can be measured | |
| 69. |
Two small orifices and of diameters 1 cm and 2 cm, respectively, are placed on the sides of a tank at depths of and below the open liquid surface. If the discharges through and are equal, then the ratio of and (assuming equal values) will be |
| A. | 16 : 1 |
| B. | 8 : 1 |
| C. | 4 : 1 |
| D. | 2 : 1 |
| Answer» B. 8 : 1 | |
| 70. |
The three-hinged arch shown in the given figure will have value of as |
| A. | 20 kN |
| B. | 30 kN |
| C. | 40 kN |
| D. | 50 kN |
| Answer» D. 50 kN | |
| 71. |
Consider the following statements :In solid waste management1. density separation of solid wastes can be accomplished by air classifiers.2. iron recovery from solid wastes can be done by magnetic separators.3. aluminium separation from solid wastes can be accomplished by eddy current separators. Which of the statements given above are correct ? |
| A. | 1 and 2 |
| B. | 2 and 3 |
| C. | 1 and 3 |
| D. | 1, 2 and 3 |
| Answer» B. 2 and 3 | |
| 72. |
Consider the following statements : 1. Book value is the unamortized cost of the asset as it still appears on the accounting books of the business.2. Termination of economic life implies disposal of the equipment.Which 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» D. Neither 1 nor 2 | |
| 73. |
Which of the following characteristic features may be used while plotting a contour plan ?1. Two contour lines having the same elevation cannot unite the continue as one line.2. Contour lines closed together indicate a gentle slope.3. Contour lines cross a valley line at right angles.Select the correct answer using the codes given below: |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» E. | |
| 74. |
The radial moment at the boundary of a simply supported circular slab of radius , subjected to a uniformly distributed load of will be |
| A. | /8 |
| B. | /12 |
| C. | 3 |
| D. | /16 |
| E. | zero |
| Answer» D. /16 | |
| 75. |
What does the critical path in PERT represent ?1. The shortest path for the earliest completion of the project.2. The longest path of the network from the initial to final event, |
| A. | 1 only |
| B. | 2 only |
| C. | Both 1 and 2 |
| D. | Neither 1 nor 2 |
| Answer» C. Both 1 and 2 | |
| 76. |
Consider the following statements pertaining to a pile group and a single pile at failure :1. In loose and medium dense sands, the failure load per pile in a group will generally be greater than the failure load for a single pile.2. In cohesive soils, the failure load per pile in a group will be greater than failure load for a single pile.3. For piles driven in dense sands, the failure load per pile in a group is greater than the failure load for a single pile.4. When the pile spacing is greater than 10 times the pile diameter, the failure loads per pile in a group and forly same in both sands and clays.Of these statements : |
| A. | 1 and 4 are correct |
| B. | 2 and 4 are correct |
| C. | 1, 2, 3 and 4 are correct |
| D. | 2, 3 and 4 are correct |
| Answer» B. 2 and 4 are correct | |
| 77. |
A pipeline of 5 cm diameter is reduced abruptly to 2.5 cm diameter at a section to enable measurement of the water flowing through it. The loss of head at the contraction is 0.5 m. Given that, in metric units, = 4.43 and = 3.132, the mean velocity in the reduced section will be |
| A. | 0.5 m/sec |
| B. | 1.1075 m/sec |
| C. | 1.566 m/sec |
| D. | 4.43 m/sec |
| Answer» E. | |
| 78. |
A clay layer, 5 m thick undergoes 50% consolidation in 5 years when subjected to an average pressure increase of 50 kN/m. If the clay layer were 10 m thick, in what period would it undergo 50% consolidation for the same pressure ? |
| A. | 10 years |
| B. | 2.5 years |
| C. | 25 years |
| D. | 20 years |
| Answer» E. | |
| 79. |
For ornamental work, which type(s) of bricks is/ are preferred ?1. Silica bricks2. Silica lime bricks3. Bricks produced in autoclavesSelect the correct answer using the code given below : |
| A. | 1 and 3 only |
| B. | 2 and 3 only |
| C. | 1 only |
| D. | 2 only |
| Answer» C. 1 only | |
| 80. |
Water is to be pumped at the rate of 0.025 m/s from a 4 m deep ground level tank to an overhead tank. The difference in levels of the full tank levels of these tanks is 16 m. What is the approximate power required for operating a 65% efficient centrifugal pump ? |
| A. | 7.5 kW |
| B. | 6.0 kW |
| C. | 3.9 kW |
| D. | 3.2 kW |
| Answer» D. 3.2 kW | |
| 81. |
A rectangular channel of 2.5 m width and 2 m depth of water carries a flow of 10 m/s. The specific energy for the flow is given by |
| A. | 1.18 m |
| B. | 3.4 m/s |
| C. | 2.0 m/s |
| D. | 2.2 m |
| Answer» E. | |
| 82. |
Which of the following variations of magnetic declination are correctly matched ?1. Diurnal variation..........Variation whose time period varies from 100-350 years2. Annual variation.........Annual rate of change of secular variation3. Secular variaiion..........Variation of declination periodic in character4. Irregular variation.........Caused due to magnetic storms in earth's magnetic fieldSelect the correct answer using the codes given below : |
| A. | 1, 3 and 4 |
| B. | 2 and 3 |
| C. | 1 and 4 |
| D. | 3 and 4 |
| Answer» E. | |
| 83. |
A flash mixer of 2.0 m, with a velocity gradient of mixing mechanisms equal to 660/s, and fluid absolute viscosity of 1.0 x 10 Ns/m is continuously operated. What is the power input per unit volume ? |
| A. | 360 W |
| B. | 720 W |
| C. | 1440 W |
| D. | 300 W |
| Answer» C. 1440 W | |
| 84. |
A rectangular footing 1 m x 2 m is placed at a depth of 2 m in a saturated clay having an unconfined compressive strength of 100 kN/m. According to Skempton, the net ultimate bearing capacity is |
| A. | 420 kN/m |
| B. | 412.5 kN/m |
| C. | 385 kN/m |
| D. | 350 kN/m |
| Answer» D. 350 kN/m | |
| 85. |
For a vertical concentrated load acting on the surface of a semi-infinite elastic soil mass, the vertical normal stress at depth is proportional to |
| A. | 1/ |
| Answer» E. | |
| 86. |
A rod shown in the given figure is such that the lower part is made of steel and the upper part is made of copper. Both the ends of the rod are rigidly clamped. If an axial force is applied at the junction of the two metals, given that the ratio / is equal to 2, then the force in the copper rod would be |
| A. | /5 tension |
| B. | /3 tension |
| C. | /3 compression |
| D. | /5 compression |
| Answer» B. /3 tension | |
| 87. |
A truss is shown in the given figure. The cross-sectional area of each member is '' and the modulus of elasticity of the material is . The strain energy in the member is given by |
| A. | zero |
| Answer» E. | |
| 88. |
What is the correct sequence of formation of the following compounds during chlorination of water in which ammonia is present ?1. NCl 2. NHCl3. NHClSelect the correct answer using the codes given below: |
| A. | 1, 2, 3 |
| B. | 2, 3, 1 |
| C. | 3, 1, 2 |
| D. | 2, 1, 3 |
| Answer» C. 3, 1, 2 | |
| 89. |
A cylindrical bar of 20 mm diameter and 1 m length is subjected to a tensile test. Its longitudinal strain is 4 times that of its lateral strain. If the modulus of elasticity is 2 x 10 N/mm, then its modulus of rigidity will be |
| A. | 8 x 106 N/mm |
| B. | 8 x 105 N/mm |
| C. | 0.8 x lO4 N/mm |
| D. | 0.8 x 105 N/mm |
| Answer» E. | |
| 90. |
The effective length of a fillet weld of length '' and size '' is given by |
| A. | - |
| B. | - 2 |
| Answer» C. | |
| 91. |
Two reservoirs are connected by two pipes and of same and length in series. If the diamerer of is 30% larger than that of , what is the ratio of head loss in to that of ? |
| A. | 0.77 |
| B. | 0.59 |
| C. | 0.50 |
| D. | 0.27 |
| Answer» E. | |
| 92. |
In a project logic, four activities , , and are required to be completed before starting activity . If the finish times of , , and are 12 days, 14 days, 15 days and 17 days respectively, the earliest event occurrence time for the activity is |
| A. | 12 days |
| B. | 14 days |
| C. | 15 days |
| D. | 17 days |
| Answer» E. | |
| 93. |
For the compound bar shown in the below figure, the ratio of stresses in the portions : : will be |
| A. | 4 : 1 : 2 |
| B. | 1 : 2 : 4 |
| C. | 1 : 4 : 2 |
| D. | 4 : 2 : 1 |
| Answer» D. 4 : 2 : 1 | |
| 94. |
Consider the following statements regarding the working stress design of under-reinforced RC sections:1. The neutral axis depth will be greater than that of a balanced section2. The stress in steel in tension will reach its maximum permissible value first3. The moment of resistance will be less than that of the balanced section4. The concrete on'the tension side is also to be considered for calculating the moment of resistance of the section.Of these statement : |
| A. | 1 and 2 are correct |
| B. | 1 and 4 are correct |
| C. | 3 and 4 are correct |
| D. | 2 and 3 are correct |
| Answer» E. | |
| 95. |
The following are the sewage treatment processes :1. Primary sedimentation2. Screening3. Grit removal4. Secondary sedimentation.When only preliminary treatment is to be given for sewage, select the required treatment proceses including their correct sequence from the codes given below: |
| A. | 2, 3 |
| B. | 2, 3, 1 |
| C. | 1, 2, 3, 4 |
| D. | 3, 1, 2, 4 |
| Answer» C. 1, 2, 3, 4 | |
| 96. |
The reaction at due to the load as shown the given figure is |
| A. | 2 |
| B. | 3 |
| Answer» B. 3 | |
| 97. |
The force in member in the given figure is |
| A. | 50 kN compression |
| B. | 50 kN tension |
| C. | 150 kN tension |
| D. | 100 kN compression |
| Answer» C. 150 kN tension | |
| 98. |
The standard plasticity chart to classify fine grained soils is shown in the given figure. The area marked '' represents |
| A. | silt of low plasticity |
| B. | clay of high plasticity |
| C. | organic soil of medium plasticity |
| D. | clay of intermediate plasticity |
| Answer» E. | |
| 99. |
The following data pertain to a waste-water sample :Initial D.O. = 8 mg/lFinal D.O. = 2 mg/lDilution = 1%.The B.O.D. of the given wastewater sample is |
| A. | 600 mg/l |
| B. | 6 mg/l |
| C. | 0.6 mg/l |
| D. | 1 mg/l |
| Answer» B. 6 mg/l | |
| 100. |
Consider the following statements pertaining to intermediate stiffeners :1. Stiffeners are provided to exclusively bear concentrated loads.2. Stiffeners should bear tightly against top and bottom flanges.3. Maximum spacing of stiffeners is restricted 180 , where is the thickness of web.Which of the statements given above is are/correct ? |
| A. | 1, 2 and 3 |
| B. | 1 and 2 only |
| C. | 3 only |
| D. | 2 only |
| Answer» D. 2 only | |