MCQOPTIONS
Saved Bookmarks
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.
| 1551. |
Which of the following assumptions are made in the analysis of jet impinging normally on a moving plate?1. Friction between jet and plate is neglected2. Flow is steady3. Momentum of jet is unchanged4. Plate moves at a constant velocityChoose the correct answer using the codes given below : |
| A. | 1, 2 and 4 |
| B. | 1, 2 and 3 |
| C. | 2, 3 and 4 |
| D. | 1, 3 and 4 |
| Answer» D. 1, 3 and 4 | |
| 1552. |
A 3000 m long line lying at an elevation of 450 m measures 10 cm on a vertical photograph.The focal length of the camera is 21 cm. The scale of the photograph for the area having an elevation of 1000 m will be |
| A. | 1 : 27381 |
| B. | 1 : 25008 |
| C. | 1 : 20606 |
| D. | 1 : 30421 |
| Answer» B. 1 : 25008 | |
| 1553. |
The approximate ratio of strength of 15 cm x 30 cm concrete cylinder to that of 15 cm cube of the same concrete is |
| A. | 1.25 |
| B. | 1.00 |
| C. | 0.85 |
| D. | 0.50 |
| Answer» D. 0.50 | |
| 1554. |
Which of the following pairs is/are correctly matched ?1. Eutrophication.... Nutrient accumulation leading to ecosystem change occurring in impounded water.2. Autotrophism.... Utilization, rearrangement and decomposition of complex materials predominate.3. Heterotrophism....Predominance of fixation of light energy, use of simple inorganic substances and built-up complex substances.Select the correct answer from the codes given below : |
| A. | 1, 2 and 3 |
| B. | 1 alone |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» C. 2 and 3 | |
| 1555. |
Which one of the following gives the number of gate position in an airport ? |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/36-1381-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/36-1381-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/36-1381-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/36-1381-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/36-1381-2.png"> | |
| 1556. |
The entry of foul smelling gases into the house coming from the sewers can be prevented by |
| A. | providing water seals for all the fixtures |
| B. | providing water seals for all the fixtures and a vent pipe in the plumbing system |
| C. | providing sufficient vent pipes in the plumbing system |
| D. | exhaust fans |
| Answer» C. providing sufficient vent pipes in the plumbing system | |
| 1557. |
For complete hydration of cement the W/C ratio needed is |
| A. | less than 0.25 |
| B. | more than 0.25 but less than 0.35 |
| C. | more than 0.35 but less than 0.45 |
| D. | more than 0.45 but less than 0.60 |
| Answer» D. more than 0.45 but less than 0.60 | |
| 1558. |
A simply supported beam of span l and flexural rigidity EI, carries a unit point load at its centre. The strain energy in the beam due to bending is |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-348-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-348-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-348-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-348-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-348-4.png"> | |
| 1559. |
A soil sample is having a specific gravity of 2.60 and a void ratio of 0.78. The water content in percentage required to fully saturate the soil at the void ratio would be |
| A. | 10 |
| B. | 30 |
| C. | 50 |
| D. | 70 |
| Answer» C. 50 | |
| 1560. |
If a soil sample of weight 0.18 kg having a volume of 10-4 m3 and dry unit wt. of 1600 kg/m3 is mixed with 0.02 kg of water then the water content in the sample will be |
| A. | 30% |
| B. | 25% |
| C. | 20% |
| D. | 15% |
| Answer» C. 20% | |
| 1561. |
Which one of the following is a compression member ? |
| A. | Purlin |
| B. | Boom |
| C. | Girt |
| D. | Tie |
| Answer» C. Girt | |
| 1562. |
The proposed dam shown in the below figure is 90 m long and coefficient of permeability of the soil is 0.0013 mm/second. The quantity of water (m3) that will be lost per day, by seepage is (rounded to the nearest number): |
| A. | 55 |
| B. | 57 |
| C. | 59 |
| D. | 61 |
| Answer» E. | |
| 1563. |
Which one of the following methods of O-D traffic surveys is conducted for comprehensive analysis of traffic and transportation data ? |
| A. | Home interview |
| B. | Roadside interview |
| C. | Registration number method |
| D. | Postcard method |
| Answer» B. Roadside interview | |
| 1564. |
Allowable disposable rate of application of sludge on land is determined by |
| A. | carbon content of sludge |
| B. | nitrogen content of sludge |
| C. | phosphorus content of sludge |
| D. | potassium content of sludge |
| Answer» C. phosphorus content of sludge | |
| 1565. |
Why is a proportional flow weir provided in a grit chamber ? |
| A. | To reduce the suspended solids entering into the grit chamber |
| B. | To maintain the constant flow depth in the grit chamber |
| C. | To take care of maintaining constant flow velocity in the grit chamber over a certain depth range |
| D. | To allow the sewage afresh into the grit chamber |
| Answer» D. To allow the sewage afresh into the grit chamber | |
| 1566. |
Two small orifices A and B of diameters 1 cm and 2 cm, respectively, are placed on the sides of a tank at depths of h1 and h2 below the open liquid surface. If the discharges through A and B are equal, then the ratio of h1 and h2 (assuming equal Cd values) will be |
| A. | 16 : 1 |
| B. | 8 : 1 |
| C. | 4 : 1 |
| D. | 2 : 1 |
| Answer» B. 8 : 1 | |
| 1567. |
Consider the following factors :1. Reaction time 2. Speed3. Coefficient of longitudinal friction 4. Gradient Which of these factors are taken into account for computing braking distance ? |
| A. | 1 and 3 |
| B. | 1, 2 and 4 |
| C. | 2, 3 and 4 |
| D. | 2 and 3 |
| Answer» D. 2 and 3 | |
| 1568. |
The influence line diagram for the force in member 'a' of the truss shown below is given by |
| A. | <img src="/_files/images/civil-engineering/gate-exam-questions/885-3-2.png"> |
| B. | <img src="/_files/images/civil-engineering/gate-exam-questions/885-3-3.png"> |
| C. | <img src="/_files/images/civil-engineering/gate-exam-questions/885-3-4.png"> |
| D. | <img src="/_files/images/civil-engineering/gate-exam-questions/885-3-5.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/gate-exam-questions/885-3-3.png"> | |
| 1569. |
In a BOD test using 5% dilution of the sample (15 ML of sample and 285 mL of dilution water), dissolved oxygen values for the sample and dilution water blank bottles after five days incubation at 20 C were 3.80 and 8.80 mg/L. respectively. Dissolved oxygen originally present in the undiluted sample was 0.80 mg/L. The 5-day 20 C BOD of the sample is |
| A. | 116 mg/L |
| B. | 108 mg/L |
| C. | 100 mg/L |
| D. | 92 Mg/L |
| Answer» E. | |
| 1570. |
In the design of storm sewers, time of concentration relevant of determine the |
| A. | rainfall intensity |
| B. | velocity in the sewer |
| C. | time of travel |
| D. | area seven by the sewer |
| Answer» B. velocity in the sewer | |
| 1571. |
Given that the density of earth is , the angle of repose is and h is the height of the wall and the earth retained is level, the active earth Pressure 'P' on retaining wall is given by |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/52-330-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/52-330-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/52-330-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/52-330-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/52-330-3.png"> | |
| 1572. |
A cantilever carries a load P at C as shown in the given figure. The deflection at B is |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/53-337-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/53-337-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/53-337-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/53-337-4.png"> |
| Answer» E. | |
| 1573. |
As the elevation increases, the runways length has to be changed at what rate ? |
| A. | Decreased @ 5% per 300 m rise in elevation above M.S.L. |
| B. | Increased @ 7% per 300 m rise in elevation above M.S.L. |
| C. | Decreased @ 9% per 300 m rise in elevation above M.S.L. |
| D. | Increased @ 15% per 300 m rise in elevation above M.S.L. |
| Answer» C. Decreased @ 9% per 300 m rise in elevation above M.S.L. | |
| 1574. |
The percentage of time in a year during which the cross wind component remains within the limit, is : |
| A. | Wind coverage |
| B. | Headwind |
| C. | Prevailing wind |
| D. | Cross wind |
| Answer» B. Headwind | |
| 1575. |
Consider the following statements :A concrete mixer is specified by the :1. volume of the mixing drum.2. horse power of the prime mover.3. volume of mixed concrete discharged.4. mixer drum speed.5. feeding arrangement.Of these statements : |
| A. | 1, 2 and 5 are correct |
| B. | 1, 3 and 4 are correct |
| C. | 3 and 5 are correct |
| D. | 2 and 4 are correct |
| Answer» C. 3 and 5 are correct | |
| 1576. |
A circular area of radius 'R' on the surface of a semi-infinite soil mass is uniformly loaded with a loading intensity of 'q'. The vertical stress z directly below its centre at a depth 'z', is given by |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/03-623-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/03-623-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/03-623-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/03-623-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/03-623-4.png"> | |
| 1577. |
The thickness of web for unstiffened plate girder with clear distance d between the flanges shall not be less than |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/56-355-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/56-355-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/56-355-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/56-355-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/56-355-3.png"> | |
| 1578. |
The resultant of the coplanar, concurrent system of forces F1, F2, F3 and F4 shown in the above figure is |
| A. | 20kN acting vertically upwards |
| B. | zero |
| C. | 20 kN acting vertically downwards |
| D. | 20 kN acting horizontally from left to right |
| Answer» C. 20 kN acting vertically downwards | |
| 1579. |
A uniform simply supported beam is subjected to a clockwise moment at the left end. What is the moment required at the right end so that rotation of the right end is zero ? |
| A. | 2 m |
| B. | m |
| C. | m/2 |
| D. | m/3 |
| Answer» C. m/2 | |
| 1580. |
During seepage through an earth mass, the direction of seepage is |
| A. | parallel to the equipotential lines |
| B. | perpendicular to the stream lines |
| C. | perpendicular1 to the equipotential lines |
| D. | along the direction of gravity |
| Answer» D. along the direction of gravity | |
| 1581. |
Consider the following statements :The effect of sea water on hardened concrete is to1. increase its strength2. reduce its strength 3. retard setting 4. decrease its durability. Of these statements : |
| A. | 1 and 3 are correct |
| B. | 2 and 3 are correct |
| C. | 2 and 4 are correct |
| D. | 1 and 4 are correct |
| Answer» D. 1 and 4 are correct | |
| 1582. |
By what percentage is length of a runway increased for every 300 m rise above M.S.L. ? |
| A. | 3% |
| B. | 4% |
| C. | 6% |
| D. | 7% |
| Answer» E. | |
| 1583. |
Clapeyron's theorem is applied to |
| A. | simply supported beam |
| B. | fixed and continuous beam |
| C. | propped cantilever beam |
| D. | continuous beam only |
| Answer» D. continuous beam only | |
| 1584. |
A fill having a volume of 150, 000 cm is to be constructed at a void ratio of 0.8. The borrow pit soil has a void ratio of 1.4. The volume of soil required (in cubic metres) to be excavated from the borrow pit will be |
| A. | 1, 87, 500 |
| B. | 2, 00, 000 |
| C. | 2, 10, 000 |
| D. | 2, 50, 000 |
| Answer» C. 2, 10, 000 | |
| 1585. |
A truss is shown in the given figure. The cross-sectional area of each member is 'A' and the modulus of elasticity of the material is E. The strain energy in the member XY is given by |
| A. | <i>P<sup>2</sup>L/2AE</i> |
| B. | <i>P<sup>2</sup>L/QAE</i> |
| C. | <i>P<sup>2</sup>L/3AE</i> |
| D. | zero |
| Answer» E. | |
| 1586. |
A fixed beam as shown in Fig. I is loaded with a U.D.L. over the entire span, the total load being W; when load was just increased to W1, the deformed shape as shown in Fig. II was seen. The value of W1 (plastic moment of resistance = Mp) is |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-358-3.png"> | |
| 1587. |
The maximum bending moment at the left quarter point of a simple beam due to crossing of UDL of length shorter than the span in the direction left to right, would occur after the load had just crossed the section by |
| A. | one-fourth of its length |
| B. | half of its length |
| C. | three-fourth of its length |
| D. | its full length |
| Answer» D. its full length | |
| 1588. |
The formulation for BOD assimilation in a stream should include |
| A. | BOD rate constant |
| B. | Sedimentation of organic matter |
| C. | BOD rate constant and sedimentation of organic matter |
| D. | Pathogenic bacterial decay coefficient |
| Answer» B. Sedimentation of organic matter | |
| 1589. |
The elements that are normally subjected to combined bending and axial forces are |
| A. | struts in reinforced concrete members |
| B. | the members in long span bridges |
| C. | columns in framed structures |
| D. | space truss members |
| Answer» D. space truss members | |
| 1590. |
For the simply supported beam shown in the given figure, at what distance from the support A, is the shear force zero? |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/16-1243-4.png"> |
| Answer» E. | |
| 1591. |
Which of the following pollutants is responsible for depletion of ozone layer ? |
| A. | Unburnt hydrocarbon |
| B. | UV rays |
| C. | Chlorofluoro carbons |
| D. | Oxides of nitrogen |
| Answer» D. Oxides of nitrogen | |
| 1592. |
If a composite bar of steel and copper is heated, then the copper bar will be subjected to |
| A. | compression |
| B. | shear |
| C. | tension |
| D. | torsion |
| Answer» B. shear | |
| 1593. |
Consider the following discharge measurement devices :1. Cylindrical mouthpiece flowing full2. Sharp-edged orifice3. Convergent-divergent mouthpiece4. Borda's re-entrant mouthpiece flowing freeThe correct sequence of increasing order of their discharge coefficients is |
| A. | 4-2-1-3 |
| B. | 4-2-3-1 |
| C. | 2-4-3-1 |
| D. | 2-4-1-3 |
| Answer» B. 4-2-3-1 | |
| 1594. |
In a laminar boundary layer, the velocity distribution can be assumed to be given, in usual notations, asWhich one of the following is the correct expression for the displacement thickness * for this boundary layer ? |
| A. | * = |
| B. | * = /2 |
| C. | * = /4 |
| D. | * = /6 |
| Answer» C. * = /4 | |
| 1595. |
In a plate load test, how is the ultimate load estimated from the load settlement curve on a log-log graph ? |
| A. | Directly |
| B. | By drawing tangents to the curve at the initial and final points |
| C. | By the secant method |
| D. | At 0.2 percent of the maximum settlement |
| Answer» B. By drawing tangents to the curve at the initial and final points | |
| 1596. |
The standard Proctor compaction curve of a clay is depicted in the above figure. Points A, B and C correspond to three compaction states of the soil, which fall on this curve. For which point(s) is the coefficient of permeability minimum ? |
| A. | A and C |
| B. | A |
| C. | B |
| D. | C |
| Answer» D. C | |
| 1597. |
The cleaning of slow sand filter is done by |
| A. | reversing the direction of flow of water |
| B. | passing air through the filter |
| C. | passing a solution of alum and lime through the filter |
| D. | scraping off the top layers of sand and admitting water |
| Answer» E. | |
| 1598. |
In the plane truss shown above, how many numbers have zero force? |
| A. | 3 |
| B. | 5 |
| C. | 7 |
| D. | 9 |
| Answer» D. 9 | |
| 1599. |
Given that ' ' is the angle of internal friction, 'p' is the safe bearing capacity and is the unit weight of soil, the minimum depth of foundation of a masonry footing is given by |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/50-883-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/50-883-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/50-883-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/50-883-4.png"> |
| Answer» E. | |
| 1600. |
When is a soil mass said to have entered the solid phase ? |
| A. | When loss in water is not accompained by a corresponding reduction in the volume of soil mass |
| B. | When reduction in the volume of the soil mass is nearly equal to the volume of water lost. |
| C. | When the soil mass becomes brittle |
| D. | When the soil mass shows a small shearing resistance as the water content is reduced. |
| Answer» B. When reduction in the volume of the soil mass is nearly equal to the volume of water lost. | |