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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.
| 1701. |
A hydraulic model of a spillway is constructed with a scale 1 : 16. If the prototype discharge is 2048 cumec, then the corresponding discharge for which the model should be tested is |
| A. | 1 cumec |
| B. | 2 cumec |
| C. | 4 cumec |
| D. | 8 cumec |
| Answer» C. 4 cumec | |
| 1702. |
ABC is rigid bar. It is hinged at A and suspended at B and C by two wires BD and CE made of copper and steel respectively, as shown in the given figure. The bar carries load of 1t at F, mid-way between B and C. Given Ac = 4 cm2, A = 2 cm2, Ec = 1 x 106 kg/cm2, Es = 2 x 106 kg/cm2. Ps is the force in the steel wire and Pc is the force in the copper wire, the ratio Pc/Ps will be |
| A. | 0.5 |
| B. | 4 |
| C. | 0.25 |
| D. | 2 |
| Answer» E. | |
| 1703. |
A beam has the same section throughout its length with I = 1 x 108mm4, It is subjected to a uniform B.M. = 40 kNm. E = 2 x 105 N/mm2, What is the radius of curvature of the circle into which the beam will bend in the form of an arc of a circle ? |
| A. | 1000 m |
| B. | 500 m |
| C. | 400 m |
| D. | 350 m |
| Answer» C. 400 m | |
| 1704. |
Consider the following statements in respect of plate girders :1. A large number of cover plates are provided over flange angles so that curtailed flanges match the bending moment diagram exactly.2. At least one cover plate should extend over the entire span so that rain water may not enter and corrode the connections.3. A minimum of one-third of flange area should be provided in flange angles and balance in flange cover plates for stability.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» E. | |
| 1705. |
A river is the source of water for water supply to a town. Its water is very turbid and polluted. The correct sequence of steps for treating the river water would be : |
| A. | Presedimentation -> prechlorination -> coagulation -> sedimentation -> filtration -> post chlorination |
| B. | coagulation -> sedimentation -> post-chlorination |
| C. | coagulation -> filtration -> sedimentation -> post-chlorination |
| D. | sedimentation -> post-chlorination |
| Answer» B. coagulation -> sedimentation -> post-chlorination | |
| 1706. |
What is the probable maximum precipitation (PMP) ? |
| A. | Projected precipitation for a 100-yr return period |
| B. | Maximum precipitation for all past recorded storms |
| C. | Upper limit of rainfall, which is justified climatologically |
| D. | Effective precipitable water |
| Answer» D. Effective precipitable water | |
| 1707. |
Westergaard's analysis for stress distribution beneath loaded area is applicable to |
| A. | sandy soils |
| B. | clayey soils |
| C. | stratified soils |
| D. | silty soils |
| Answer» D. silty soils | |
| 1708. |
In order to find the resultant of a system of coplanar parallel system of forces, the correct sequence of the graphical procedure to be followed is |
| A. | force diagram, space diagram, funicular polygon and polar diagram |
| B. | funicular polygon, force diagram, space diagram and polar diagram |
| C. | space diagram, force diagram, polar diagram and funicular polygon |
| D. | space diagram, funicular polygon, force diagram and polar diagram. |
| Answer» D. space diagram, funicular polygon, force diagram and polar diagram. | |
| 1709. |
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. | |
| 1710. |
What is the recommended grade of tar for grouting purpose ? |
| A. | RT - 1 |
| B. | RT - 2 |
| C. | RT - 3 |
| D. | RT - 5 |
| Answer» E. | |
| 1711. |
With 'n' variables and 'm' fundamental dimensions in a system, which one of the following statements relating to the application of the Buckingham's Pi Theorem is incorrect ? |
| A. | With experience, pi terms can be written simply by inspection of variables in a flow system |
| B. | Buckingham's pi theorem is not directly applicable in compressible flow problem |
| C. | Buckingham's pi theorem yields dimensionless pi terms given by the difference between the number of variables and the number of fundamental dimensions |
| D. | Buckingham's pi theorem reduces the number of variables by the number of fundamental dimensions involved. |
| Answer» C. Buckingham's pi theorem yields dimensionless pi terms given by the difference between the number of variables and the number of fundamental dimensions | |
| 1712. |
A fixed beam of unifrom section is carrying a point load at its mid-span. If the moment of inertia of the middle half length is now reduced to half its previous value, then the fixed end moments will |
| A. | Increase |
| B. | decrease |
| C. | remain constant |
| D. | change their directions |
| Answer» B. decrease | |
| 1713. |
For the movement of vehicles at an intersection of two roads without any interference, which type of grade separation is generally preferred ? |
| A. | Delta |
| B. | Diamond |
| C. | Trumpet |
| D. | Cloverleaf |
| Answer» E. | |
| 1714. |
Which one of the following stresses is independent of yield stress as a permissible stress for steel members ? |
| A. | Axial tensile stress |
| B. | Maximum shear stress |
| C. | Bearing stress |
| D. | Stress in slab base |
| Answer» E. | |
| 1715. |
What is the ratio of maximum shear stress to average shear stress for a circular section ? |
| A. | 2 |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/92-562-1.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/15-1236-4.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/15-1235-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/15-1235-4.png"> | |
| 1716. |
If a circular shaft is subjected to a torque T and a bending moment 'M' the ratio of the maximum shear stress to the maximum bending stress is given by : |
| A. | 2 |
| B. | <i>M/T</i> |
| C. | <i>T/2M</i> |
| D. | <i>2T/M</i> |
| E. | <i>M/2T</i> |
| Answer» C. <i>T/2M</i> | |
| 1717. |
Due to rise in temperature, the viscosity and unit weight of percolating fluid are reduced to 70% and 90% respectively. Other things being constant, the change in coefficient of permeability will be |
| A. | 20.0% |
| B. | 28.6% |
| C. | 63.0% |
| D. | 77.8% |
| Answer» C. 63.0% | |
| 1718. |
The correct sequence of the sludge digestion steps is |
| A. | Acid formation, hydrolysis, methane formation |
| B. | Methane formation, acid formation, hydrolysis |
| C. | Hydrolysis, methane formation, acid formation |
| D. | Hydrolysis, acid formation, methane formation |
| Answer» E. | |
| 1719. |
Which one of the following represents the basic capacity of a single lane road?(where V = speed in kmph, s = Average centre to centre spacing of vehicle in m, h = Average time headway between two vehicles in seconds.) |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-1521-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-1521-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-1521-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-1521-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-1521-3.png"> | |
| 1720. |
Which one of the following statements is correct with respect to rigid pavements ? |
| A. | Vertical stresses are transmitted to the lower layer through the points of contact in granular structure. |
| B. | Vertical compressive stress is maximum on the pavement surface directly under the wheel load. |
| C. | Lower layers have to take lesser magnitudes of stress |
| D. | Stresses on rigid pavements are transmitted to a wider area of sub grade. |
| Answer» C. Lower layers have to take lesser magnitudes of stress | |
| 1721. |
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 | |
| 1722. |
A cantilever beam of T cross-section carries uniformly distributed load. Where does the maximum magnitude of the bending stress occur ? |
| A. | At the top of cross-section |
| B. | At the junction of flange and web |
| C. | At the mid-depth point |
| D. | At the bottom of the section |
| Answer» E. | |
| 1723. |
If the CBR value obtained at 5 mm penetration is higher than that at 2.5 mm, then the test is repeated for checking ; and if the check test reveals a similar trend, then the CBR value is to be reported as the |
| A. | Mean of the values for 5 mm and 2.5 mm penetrations |
| B. | Higher value minus the lower value |
| C. | Lower value corresponding to 2.5 mm penetration |
| D. | Higher value obtained at 5 mm penetration |
| Answer» E. | |
| 1724. |
If a descending gradient of 1 in 25 meets an ascending gradient of 1 in 40, then the length of valley curve required for a headlight sight distance of 100 m will be |
| A. | 30 m |
| B. | 130 m |
| C. | 310 m |
| D. | 630 m |
| Answer» C. 310 m | |
| 1725. |
In rock masses reduction in strength occurs due to the presence of relatively large quantities of |
| A. | silica |
| B. | iron oxides |
| C. | orthoclase |
| D. | hornblende |
| Answer» E. | |
| 1726. |
Which one of the following states of field compaction of sand deposit truly represents the corrected standard penetration test value : N (corrected) = 27 ? |
| A. | Loose |
| B. | Medium dense |
| C. | Dense |
| D. | Very dense |
| Answer» C. Dense | |
| 1727. |
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. | |
| 1728. |
A sewer, 1000 mm in diameter is laid at a slope to obtain a velocity of 0.8 m/s when running full. Assuming Manning's n as constant, what is the velocity in this sewer if it is running half full. |
| A. | 0.2 m/s |
| B. | 0.4 m/s |
| C. | 0.6 m/s |
| D. | 0.8 m/s |
| Answer» E. | |
| 1729. |
Soundness test of cement is done to determine its |
| A. | durability in sea water |
| B. | free-lime content |
| C. | iron oxide content |
| D. | alumina content |
| Answer» C. iron oxide content | |
| 1730. |
For a non-concurrent force system to be in equilibrium |
| A. | closure of the force polygon alone is sufficient |
| B. | closure of the funicular polygon alone is sufficient |
| C. | both force and funicular polygon must close |
| D. | the conditions mentioned at (a), (b) and (c) are not relevant |
| Answer» D. the conditions mentioned at (a), (b) and (c) are not relevant | |
| 1731. |
What is the ratio of the forces in the members AB, BE and AE of the pin-joined truss shown in the figure? |
| A. | 5 : 4 : 3 |
| B. | 4 : 3 : 5 |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/19-1258-3.png"> |
| D. | None of the above |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/19-1258-3.png"> | |
| 1732. |
For the network shown in the above figure (the number on each arrow denotes the time duration of activity in days), the earliest star time, in days for activity 5-6 is |
| A. | 8 |
| B. | 7 |
| C. | 9 |
| D. | 11 |
| Answer» B. 7 | |
| 1733. |
A clay layer 5 m thick in field takes 300 days to attain 50% consolidation with condition of double drainage. If the same clay layer is underlain by hard rock then the time taken to attain 50% consolidation will be |
| A. | 300 days |
| B. | 600 days |
| C. | 900 days |
| D. | 1200 days |
| Answer» E. | |
| 1734. |
Two forces P = 6 N and Q = 10 N 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 R 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 | |
| 1735. |
What is the predominating coagulation mechanism for raw water having high turbidity and high alkalinity? |
| A. | Ionic layer compression |
| B. | Adsorption and charge neutralization |
| C. | Sweep coagulation |
| D. | Inter particle bridging |
| Answer» D. Inter particle bridging | |
| 1736. |
Where is d'Alembert's principle employed ? |
| A. | In the design of long columns |
| B. | To determine stresses induced in thick cylinders |
| C. | To reduce a problem of kinetics to an equivalent problem of statics |
| D. | In the analysis of many geotechnical problems |
| Answer» D. In the analysis of many geotechnical problems | |
| 1737. |
The hoop stress in a dome subjected to uniformly distributed load |
| A. | is always compressive |
| B. | is tensile at sections whose radius vectors are at angles less than 51 51' with the vertical |
| C. | is tensile at sections whose radius vectors are at angles greater than 51 51' with the vertical |
| D. | is always tensile |
| Answer» C. is tensile at sections whose radius vectors are at angles greater than 51 51' with the vertical | |
| 1738. |
A commonly used handpump is the |
| A. | centrifugal pump |
| B. | reciprocating pump |
| C. | rotary pump |
| D. | axial flow pump |
| Answer» C. rotary pump | |
| 1739. |
The momentum correction factor ( ) is used to account for |
| A. | change in the direction of flow |
| B. | change in total energy |
| C. | change in mass rate of flow |
| D. | non-uniform distribution of vel-ocities |
| Answer» E. | |
| 1740. |
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 | |
| 1741. |
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/cm2, 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 | |
| 1742. |
Which one of the following different types of submerged soils is susceptible to liquefaction under earthquake shocks ? |
| A. | Dense sand |
| B. | Soft clay |
| C. | Loose silt |
| D. | Fissured clay |
| Answer» D. Fissured clay | |
| 1743. |
In the given figure, 1 and the 2 and maximum and minimum principal stresses. In order that the resultant stress on the plane AB is the value of should be |
| A. | 30 |
| B. | 45 |
| C. | 60 |
| D. | 75 |
| Answer» C. 60 | |
| 1744. |
Eutrophication of water bodies is caused by the |
| A. | discharge of toxic substances |
| B. | excessive discharge of nutrients |
| C. | excessive discharge of suspended solids |
| D. | excessive discharge of chlorides |
| Answer» C. excessive discharge of suspended solids | |
| 1745. |
For laminar flow through a circular tube, the average velocity at a section is |
| A. | the same as that at the centre of tube |
| B. | two-thirds the velocity at the centre of the tube |
| C. | half the velocity at the centre of the tube |
| D. | dependent on the pressure at the section |
| Answer» D. dependent on the pressure at the section | |
| 1746. |
Consider the following statements : Seasoning of timber results is 1. increased strength 2. increased durability.3. reduced resilience.Of these statements : |
| A. | 1, 2 and 3 are correct |
| B. | 1 and 3 are correct |
| C. | 1 and 2 are correct |
| D. | 2 and 3 are correct |
| Answer» B. 1 and 3 are correct | |
| 1747. |
Gypsum is added to Portland cement during its manufacture so that it may |
| A. | accelerate the setting time |
| B. | retard the setting time |
| C. | decrease the burning temperature |
| D. | facilitate grinding |
| Answer» C. decrease the burning temperature | |
| 1748. |
Unit cost of any item of work can be found by using |
| A. | specifications |
| B. | value analysis |
| C. | economic analysis |
| D. | rate analysis |
| Answer» E. | |
| 1749. |
For one cubic metre of brick masonry, the number of modular bricks needed is |
| A. | 400 or less |
| B. | 400 to 450 |
| C. | 500 to 550 |
| D. | 600 to 650 |
| Answer» D. 600 to 650 | |
| 1750. |
The probability that the load on a scaffolding will exceed the design load of 3 tonnes is 0.15. At the same time, the probability that the strength of the scaffolding will be more than 3 tonnes is 0.85. The probability that the scaffolding will fail is |
| A. | 0.2775 |
| B. | 0.1275 |
| C. | 0.0225 |
| D. | 0.0020 |
| Answer» D. 0.0020 | |