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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.
| 1601. |
A centrifugal pump is required to lift 2.8 cu.m.s of water to a height of 7.5 m. If the total loss of head in the pipe system is 0.25 m and the efficiency of the pump is 80%, then the brake horse power will be |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/40-843-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/40-843-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/40-843-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/40-843-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/40-843-4.png"> | |
| 1602. |
Which among the following assumptions are made in the design roof trusses ?1. Roof truss is restrained by the reactions2. Axes of the members meeting at a joint intersect at a common point3. Riveted joints act as frictionless hinges4. Loads act normal to roof surfaceSelect the correct answer using the codes given below: |
| A. | 1, 2 and 4 |
| B. | 2, 3 and 4 |
| C. | 1, 3 and 4 |
| D. | 1, 2 and 3 |
| Answer» C. 1, 3 and 4 | |
| 1603. |
The saturated and dry densities of a soil are respectively 2000 kg/m3 and 1500 kg/m3. The water content (in percentage) of the soil in the saturated state would be |
| A. | 25 |
| B. | 33.33 |
| C. | 50 |
| D. | 66.66 |
| Answer» C. 50 | |
| 1604. |
The beam ABC shown in the given figure is horizontal. The distance to the point of contraflexure from the fixed end 'A' is |
| A. | 0.333 m |
| B. | 0.666 m |
| C. | 0.25 m |
| D. | 0.75 m |
| Answer» B. 0.666 m | |
| 1605. |
A timber beam of rectangular section 100 mm x 50 mm is simply supported at the ends, has a 30 mm x 10 mm steel strip securely fixed to the top surface as shown in the given figure.The centroid of the "Equivalent timber beam" in this case from the tope surface |
| A. | is 5 mm |
| B. | is 30 mm |
| C. | is 15 mm |
| D. | cannot be predicted |
| Answer» C. is 15 mm | |
| 1606. |
What is eutrophication of lakes primarily due to ? |
| A. | Multiplication of bacteria |
| B. | Excessive inflow of nutrients |
| C. | Increase in benthic organisms |
| D. | Thermal and density currents |
| Answer» C. Increase in benthic organisms | |
| 1607. |
For the motion represented by the graph shown in the given figure, the numerical value of velocity , when acceleration will be |
| A. | 1 m/sec |
| B. | 2 m/sec |
| C. | 3 m/sec |
| D. | 4 m/sec |
| Answer» B. 2 m/sec | |
| 1608. |
At what value of saturation does the zero air voids curve in a compaction test represent the dry density? |
| A. | 0% |
| B. | 80% |
| C. | 100% |
| D. | 50% |
| Answer» D. 50% | |
| 1609. |
Which steel member section among the following combinations can carry maximum load ? |
| A. | A pair of angles welded on opposite sides of a gusset plate, but not tack welded |
| B. | A pair of angles welded on opposite sides of a gusset plate, and tack welded along its length. |
| C. | A pair of angles back to back on same side of a gusset plate, and tack welded. |
| D. | A pair of angles on same side of a gusset plate, but not tack welded |
| Answer» C. A pair of angles back to back on same side of a gusset plate, and tack welded. | |
| 1610. |
The approximate proportion of dry cement mortar required for brick work is |
| A. | 60% |
| B. | 45% |
| C. | 30% |
| D. | 10% |
| Answer» D. 10% | |
| 1611. |
The waste stabilization ponds can be |
| A. | aerobic |
| B. | anaerobic |
| C. | facultative |
| D. | any of the above |
| Answer» E. | |
| 1612. |
Consider the following statements :1. Water hammer can develop in an unsteady flow only.2. Time required for rapid closure of valve is between 2 L/C and 4 L/C where L is the pipe length and C is the celerity of wave.3. In flexible water column theory, pipe may expand and water may compress in the flow system.4. Joukowskyhas carried out the mathematical analysis of water hammer.Which is the above statements relating to water hammer in pipes are correct ? |
| A. | 1, 2 and 3 |
| B. | 1, 2 and 4 |
| C. | 2, 3 and 4 |
| D. | 1, 3 and 4 |
| Answer» D. 1, 3 and 4 | |
| 1613. |
It is required to determine by periodical soundings, the rate at which silting or scouring is taking place in a harbour. Which one of the following methods is best suited for locating the positions of the soundings? |
| A. | Range and time intervals |
| B. | Two angles from the boat |
| C. | Tachometric observations |
| D. | Intersecting ranges |
| Answer» E. | |
| 1614. |
A simply supported beam of span 'l' is loaded (as shown in the given figure) with a uniformly varying load of intensity w1/unit length at 'A' to w2/unit length at 'B'. A The shear force at the support 'B' is given by |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-598-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-598-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-598-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-598-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/100-598-4.png"> | |
| 1615. |
In the PERT analysis, which one of the following is followed by the time estimate of activities and probability of either occurrance ? |
| A. | Normal distribution |
| B. | Poisson's distribution |
| C. | - distribution |
| D. | Binomial distribution. |
| Answer» D. Binomial distribution. | |
| 1616. |
A brick masonry wall of nominal thickness 200 mm carries an axial load of 26 kN/m and another load of 19 kN/m acting at an eccentricity of 45 mm. The resultant eccentricity and eccentricity ratio are respectively |
| A. | 19 mm, 0.095 |
| B. | 19 mm, 1.00 |
| C. | 22 mm, 1.10 |
| D. | 24 mm, 1.20 |
| Answer» B. 19 mm, 1.00 | |
| 1617. |
What is the correct sequence of formation of the following compounds during chlorination of water in which ammonia is present ?1. NCl3 2. NH2Cl3. NHCl2Select 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 | |
| 1618. |
In a project logic, four activities M, N, O and P are required to be completed before starting activity Q. If the finish times of M, N, O and P are 12 days, 14 days, 15 days and 17 days respectively, the earliest event occurrence time for the activity Q is |
| A. | 12 days |
| B. | 14 days |
| C. | 15 days |
| D. | 17 days |
| Answer» E. | |
| 1619. |
A square column section of size 350 mm is 350 mm is reinforced with four bars of 25 mm diameter and four bars of 16 mm diameter. Then the transverse steel should be : |
| A. | 5 mm dia @ 240 mm c/c |
| B. | 6 mm dia @ 250 mm c/c |
| C. | 8 mm dia @ 250 mm c/c |
| D. | 8 mm dia @ 350 mm c/c |
| Answer» D. 8 mm dia @ 350 mm c/c | |
| 1620. |
The force in member FD 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 | |
| 1621. |
The standard plasticity chart to classify fine grained soils is shown in the given figure. The area marked 'X' represents |
| A. | silt of low plasticity |
| B. | clay of high plasticity |
| C. | organic soil of medium plasticity |
| D. | clay of intermediate plasticity |
| Answer» E. | |
| 1622. |
Which one of the following statements is correct ? In the lime-soda process of water softening |
| A. | lime reduces carbonate hardness while soda removes non-carbonate hardness |
| B. | only carbonate hardness is removed |
| C. | lime reduces non-carbonate hardness while soda removes carbonate hardness |
| D. | Only non-carbonate hardness is removed. |
| Answer» B. only carbonate hardness is removed | |
| 1623. |
In standard penetration test, the splitspoon sampler is penetrated into the soil stratum by giving blows from a drop weight whose weight (in kg) and free fall (in cm) are, respectively, |
| A. | 30 and 60 |
| B. | 60 and 30 |
| C. | 65 and 75 |
| D. | 75 and 65 |
| Answer» D. 75 and 65 | |
| 1624. |
In the given figure, the latitude of the place of observation will be equal to declination of the star plus its co-altitude when the position of the star on the meridian is between |
| A. | horizon and Pole |
| B. | horizon and equator |
| C. | equator and zenith |
| D. | Pole and zenith |
| Answer» C. equator and zenith | |
| 1625. |
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 | |
| 1626. |
Two reservoirs are connected by two pipes A and B of same and length in series. If the diamerer of A is 30% larger than that of B, what is the ratio of head loss in A to that of B ? |
| A. | 0.77 |
| B. | 0.59 |
| C. | 0.50 |
| D. | 0.27 |
| Answer» E. | |
| 1627. |
In an external focussing tacheometer, the fixed interval between the stadia hairs is 5 mm; the focal length of the objective is 25 cm ; and the distance of the vertical axis of the instrument from the optical centre of the objective is 15 cm. The constants of the tacheometer are |
| A. | 50 ; 0.40 m |
| B. | 50 ; 0.25 m |
| C. | 100 ; 0.40 m |
| D. | 30 ; 0.10 m |
| Answer» B. 50 ; 0.25 m | |
| 1628. |
Presence of nitrogen in waste water sample is due to the decomposition of |
| A. | Carbohydrates |
| B. | Proteins |
| C. | Fats |
| D. | Vitamins |
| Answer» C. Fats | |
| 1629. |
If 'p' is the precipitation, 'a' is the area represented by a rainguage, and n is the number of raingauges in a catchment area, then the weighted mean rainfall is |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/73-455-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/73-455-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/73-455-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/73-455-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/73-455-4.png"> | |
| 1630. |
'Air binding' may occur in |
| A. | Sewers |
| B. | Artesian well |
| C. | Aerator |
| D. | Filter |
| Answer» E. | |
| 1631. |
What is range of values of Poisson's ratio for ductile materials ? |
| A. | 0.10 to 0.15 |
| B. | 0.16 to 0.20 |
| C. | 0.21 to 0.24 |
| D. | 0.25 to 0.33 |
| Answer» C. 0.21 to 0.24 | |
| 1632. |
Which one of the following expresses the height of rise or fall of a liquid in a capillary tube ?(w = Specific weight of the liquid = Angle of contact of the liquid surface = Surface tension) |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/70-1639-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/70-1639-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/70-1639-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/70-1639-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/70-1639-4.png"> | |
| 1633. |
For the beam shown in the given figure, the maximum positive bending moment is equal to negative bending moment. The value of L1 is |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-396-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-396-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-396-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/64-396-4.png"> |
| Answer» E. | |
| 1634. |
Given that Plasticity Index (PI) of local soil = 15 and PI of sand = zero, for a desired PJ of 6, the percentage of sand in the mix should be |
| A. | 70 |
| B. | 60 |
| C. | 40 |
| D. | 30 |
| Answer» C. 40 | |
| 1635. |
Consider the following locations of a turnout:1. Tongue rail2. Lead rail3. Toe of switch4. Crossing.Which is the correct sequence for a train to pass over the turnout from the facing direction? |
| A. | 3 - 1 - 2 - 4 |
| B. | 4 - 2 - 1 - 3 |
| C. | 3 - 2 - 1 - 4 |
| D. | 4 - 1 - 2 - 3 |
| Answer» B. 4 - 2 - 1 - 3 | |
| 1636. |
Two closely-coiled springs A and B of the same material, same wire and same number of turns are subjected to an axial load of W. The mean diameter of spring A is half that of spring B. The ratio of deflection of spring B to that of spring A will be |
| A. | 8 |
| B. | 4 |
| C. | 1/4 |
| D. | 1/8 |
| Answer» D. 1/8 | |
| 1637. |
A column ABCD (2y1 x 2y2) of rectangular section carries a load P at Z having the co-ordinates (x, y) as shown in the given figure.If the compressive streses are taken as positive and area A = 2y1 x 2y2 = 4y1 y2 and the moment of inertia about x and y axis being Ixx and Iyy respectively, then the stress at the corner D is |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-345-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-345-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-345-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-345-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/55-345-3.png"> | |
| 1638. |
The following statements relate to the pressure exerted by a fluid on a Submerged curved surface :1. The vertical component of hydrostatic force acting on a submerged curved surface acts through the centre of volume of the fluid directly above the submerged area.2. The horizontal component of the force acting on a curved surface is the hydrostatic force acting on the vertical projection of the curved surface.3. The resultant force on a curved surface acts on the bottom of th6 curved surface.Of these statements : |
| A. | 1, 2 and 3 are correct |
| B. | 2 and 3 are correct |
| C. | 1 and 2 are correct |
| D. | 1 and 3 are correct |
| Answer» D. 1 and 3 are correct | |
| 1639. |
The lost time due to starting delay on a traffic signal is noted to be 3s, the actual green time is 25s and yellow time is 3s. How much is the effective green time ? |
| A. | 31s |
| B. | 28s |
| C. | 25s |
| D. | 22s |
| Answer» D. 22s | |
| 1640. |
A torsion member is fabricated from two concentric thin tubes. At the ends, the tubes are welded to rigid discs so that both the tubes are twisted as a unit. The radius of the outer tube is 2r and that of the inner tube is r. If the shear stresses developed in the outer tube is , then the shear stress in the inner tube will be. |
| A. | |
| B. | 0.25 |
| C. | 0.75 |
| D. | 0.5 |
| Answer» E. | |
| 1641. |
What will be the curve lead for a 1 in 8 1/2 turnout taking off from a straight broad gauge track? |
| A. | 28.49 m |
| B. | 21.04 m |
| C. | 14.24 m |
| D. | 7.45 m |
| Answer» B. 21.04 m | |
| 1642. |
Figure given below shows a fixed beam of steel: At the point of collapse, the value of load W will be |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-973-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-973-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-973-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-973-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/65-973-4.png"> | |
| 1643. |
The deflection at the free end of a uniformly loaded cantilever of length 1 m is 7.5 mm. What is the slope at the free end ? |
| A. | 0.01 radian |
| B. | 0.015 radian |
| C. | 0.02 radian |
| D. | 0.025 radian |
| Answer» B. 0.015 radian | |
| 1644. |
Which one of the following statements is correct ?In a plane truss, influence line values |
| A. | vary parabolically between panel points |
| B. | vary exponentially between panel points |
| C. | vary linearly between panel points |
| D. | vary following a cubic relationship between panel points |
| Answer» D. vary following a cubic relationship between panel points | |
| 1645. |
A structural member carrying a pull of 700 kN is connected to a gusset plate using rivets. If the pulls required to shear the rivet, to crush the rivet and to tear the plate per pitch length are respectively 60 kN, 35 kN and 70 kN, then the number of rivets required will be |
| A. | 22 |
| B. | 20 |
| C. | 18 |
| D. | 12 |
| Answer» C. 18 | |
| 1646. |
In the cantilever truss shown in the given figure, the reaction at A is |
| A. | 10 t |
| B. | 20 t |
| C. | 30 t |
| D. | 40 t |
| Answer» D. 40 t | |
| 1647. |
The degree of indeterminacy of the beam given in the given figure is |
| A. | zero |
| B. | one |
| C. | two |
| D. | three |
| Answer» E. | |
| 1648. |
Among the following, which is/are not pre-treatment unit (s) ? |
| A. | Bar screen and grit chamber |
| B. | Flow equalization and proportioning tank |
| C. | Neutralization for pH adjustment tank |
| D. | Nutrient removal tank |
| Answer» B. Flow equalization and proportioning tank | |
| 1649. |
A solid sphere will be in stable equilibrium if its centre of gravity lies |
| A. | vertically above its geometric centre |
| B. | vertically below its geometric centre |
| C. | on the horizontal line through its centre |
| D. | at the centre |
| Answer» C. on the horizontal line through its centre | |
| 1650. |
For the compound bar shown in the below figure, the ratio of stresses in the portions AB : BC : CD will be |
| A. | 4 : 1 : 2 |
| B. | 1 : 2 : 4 |
| C. | 1 : 4 : 2 |
| D. | 4 : 2 : 1 |
| Answer» D. 4 : 2 : 1 | |