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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.
| 1501. |
Which one of the following is the correct statement ?Smaller size of aggregates in a concrete mix : |
| A. | provides larger surface area for bonding with the mortar matrix which increases the compressive strength and reduces the stress concentration at the mortar-aggregate interface |
| B. | is economical as the concrete mix is more dense |
| C. | requires lesser cement for a particular water-cement ratio and hence is economical |
| D. | is beneficial as these aggregates can pass through the reinforcement bars more easily |
| Answer» B. is economical as the concrete mix is more dense | |
| 1502. |
To produce low heat cements, it is necessary to reduce the compound |
| A. | C3S |
| B. | C2S |
| C. | C3A |
| D. | C4AF |
| Answer» D. C4AF | |
| 1503. |
Four bolts share the load P 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 P ? |
| A. | 96 kN |
| B. | 105 kN |
| C. | 117 kN |
| D. | 134 kN |
| Answer» E. | |
| 1504. |
In the alignment of an irrigation channel wherefrom offtakes have to be provided at regular intervals, changes in the given channel parameters are made use of. The correct sequence of the decreasing order of preference of these parameters is |
| A. | Width, slope, depth |
| B. | Width, depth, slope |
| C. | Depth, slope, width |
| D. | Depth, width, slope |
| Answer» C. Depth, slope, width | |
| 1505. |
A 600 mm long and 50 mm diameter rod of steel (E = 200 GPa, α = 12 x 10-6/°C) is attached at the ends to unyielding supports. When the temperature is 30°C there is no stress in the rod. After the temperature of the rod drops to - 20°C, the axial stress in the rod will be |
| A. | 24 MPa (compressive) |
| B. | 72 MPa (compressive) |
| C. | 120 MPa (tensile) |
| D. | 144 MPa (compressive) |
| Answer» D. 144 MPa (compressive) | |
| 1506. |
Presence of nitrogen in waste water sample is due to the decomposition of |
| A. | Carbohydrates |
| B. | Proteins |
| C. | Fats |
| D. | Vitamins |
| Answer» C. Fats | |
| 1507. |
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 | |
| 1508. |
Consider the following statements about a hydraulic ram :1. Hydraulic ram does not need external power. 2. It works on the fundamental principle of water hammer.3. The efficiency of a hydraulic ram is only of the order of 8 to 10%.4. It can be termed as a low, intermittent discharge low-head pumping installation. Which of these statements are correct ? |
| A. | 2 and 3 |
| B. | 1, 2, 3 and 4 |
| C. | 1 and 2 |
| D. | 1 and 3 |
| Answer» D. 1 and 3 | |
| 1509. |
If a road surface is adequately superelevated on horizontal curve, which one of the following is the proper distribution of pressure on the vehicle wheels ? |
| A. | Pressure on both outer and inner wheels is equal |
| B. | Pressure on inner wheels is more than the outer wheels |
| C. | Pressure on inner wheels is less than the outer wheels |
| D. | Pressure on front wheels is thrice the pressure on rear wheels |
| Answer» B. Pressure on inner wheels is more than the outer wheels | |
| 1510. |
Two shafts of same material and same length are connected in series and subjected to a torque 'T' as shown in the given figure. If , what is the value of the ratio ? (Where τ1 and τ2 are the extreme shear stresses in either of two segments) |
| A. | 4 |
| B. | 2 |
| C. | 8 |
| D. | 16 |
| Answer» D. 16 | |
| 1511. |
Cost-benefit studies are essential to |
| A. | assess the total cost of the work |
| B. | ascertain the relevant escalation in prices |
| C. | monitor the expenditure |
| D. | evaluate the viability and worthwhileness of taking up the project |
| Answer» E. | |
| 1512. |
In highway geometric design, once the cumulative speed distribution is drawn, the design adequacy is checked at which percentile ? |
| A. | 85th percentile |
| B. | 95th percentile |
| C. | 98th percentile |
| D. | 99th percentile |
| Answer» D. 99th percentile | |
| 1513. |
What is the maximum possible value of Poisson's ratio for a non-dilatant material ? |
| A. | 0.67 |
| B. | 0.5 |
| C. | 0.33 |
| D. | 0.25 |
| Answer» D. 0.25 | |
| 1514. |
For the truss shown in the figure, which one of the following members has zero force induced in it ? |
| A. | BC |
| B. | AD |
| C. | DE |
| D. | BD |
| Answer» B. AD | |
| 1515. |
Which one of the following is not the reason for coning of wheels ? |
| A. | To reduce the wear and tear of wheel flanges and rails |
| B. | To provide the possibility of lateral movement of axle |
| C. | To reduce the unit weight of wheels |
| D. | To prevent wheels from slipping to some extent |
| Answer» D. To prevent wheels from slipping to some extent | |
| 1516. |
The method of plane tabling commonly used for establishing the instrument station is a method of |
| A. | radiation |
| B. | intersection |
| C. | resection |
| D. | traversing |
| Answer» D. traversing | |
| 1517. |
Consider the following field tests :1. Vertical pile load test2. Cyclic pile load test3. Lateral pile load test4. Instrumented test pileWhile estimating the load carrying capacity of a pile, the tests that can be used for separating the skin resistance from point resistance, would include |
| A. | 1 and 3 |
| B. | 1 and 4 |
| C. | 2 and 3 |
| D. | 2 and 4 |
| Answer» D. 2 and 4 | |
| 1518. |
A simply supported beam is subjected to an eccentric concentrated load. Where does the maximum deflection of the beam due to the applied load occur ? |
| A. | Directly under the load |
| B. | At the centre of the beam |
| C. | Between the load point and the nearest end support |
| D. | Between the load point and centre of the beam. |
| Answer» E. | |
| 1519. |
Consider the following statements regarding underreamed piles :1. They are used in expansive soils.2. They are of perkcast reinforced concrete.3. The ratio of bulb to shaft diameters is usually 2 to 3.4. Minimum spacing between the piles should not be less than 1.5 times the bulb diameter. of these statements : |
| A. | 1, 2 and 3 are correct |
| B. | 1, 3 and 4 are correct |
| C. | 2, 3 and 4 are correct |
| D. | 1, 2 and 4 are correct |
| Answer» C. 2, 3 and 4 are correct | |
| 1520. |
The force in the member BD of the truss shown in the given figure is |
| A. | 4 kN tensile |
| B. | 4 kN compressive |
| C. | zero |
| D. | 12 kN compressive |
| Answer» C. zero | |
| 1521. |
Consider the following statements for the column with a bracket as shown in the figure :1. Shear force is constant throughout.2. Maximum moment in the column is P.e.3. The compressive axial force in the column is 0.4. p.Which of the statements given above is/are correct ? |
| A. | 1, 2 and 3 |
| B. | 1 only |
| C. | 1 and 3 |
| D. | 2 only |
| Answer» D. 2 only | |
| 1522. |
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 | |
| 1523. |
The plastic section modulus of a rectangular section of width 100 mm and depth 12 mm is |
| A. | 1000 mm3 |
| B. | 1800 mm3 |
| C. | 2400 mm3 |
| D. | 3600 mm3 |
| Answer» E. | |
| 1524. |
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 | |
| 1525. |
In a shape test of aggregate, which one of the following gives the correct slot for flakiness index of a material passing 50 mm sieve and retained on 40 mm sieve ? |
| A. | 25 mm |
| B. | 27 mm |
| C. | 81 mm |
| D. | 30 mm |
| Answer» C. 81 mm | |
| 1526. |
The compacting factor test of cement concrete determines its |
| A. | strength |
| B. | porosity |
| C. | degree of compaction under loads |
| D. | workability |
| Answer» E. | |
| 1527. |
xx, x1 x1 and x2 x2 are parallel axes of which XX is the centroidal axis. If moment of inertia of the figure about x1 x1 axis is 10m4, what is the moment of inertia of the figure about x2 x2 axis? |
| A. | 10 m4 |
| B. | 11 m4 |
| C. | 14 m4 |
| D. | 15 m4 |
| Answer» E. | |
| 1528. |
When the strain in a material increases with time under sustained constant stress, the phenomenon is known as |
| A. | Strain hardening |
| B. | Hysteresis |
| C. | Creep |
| D. | Visco-elastici |
| Answer» D. Visco-elastici | |
| 1529. |
Consider the following statements :For the N-girder shown in the given figure, ILD for force in the member, L0U1 is obtained by1. multiplying the ordinate of ILD for shear in the panel L0L1, by sec θ.2. dividing the ordinate of ILD for moment at L1 by cos θ x L0L13. dividing the ordinate of ILD for moment at L1 by L1 U1Of these statements : |
| A. | only 3 is correct |
| B. | 1 and 3 are correct |
| C. | 1 and 2 are correct |
| D. | 1, 2 and 3 are correct |
| Answer» B. 1 and 3 are correct | |
| 1530. |
In the network given in figure, the maximum number of shovels and dumpers required are |
| A. | 6 shovels and 14 dumpers on days 9 and 10 |
| B. | 24 shovels and 10 dumpers on days 3 and 4 |
| C. | 30 shovels and 90 dumpers on all days |
| D. | 10 shovels and 24 dumpers on days 3 and 4 |
| Answer» E. | |
| 1531. |
In the pin-jointed plane truss shown above, what is the magnitude and nature of force in member BC? |
| A. | Zero |
| B. | 50 kN (tensile) |
| C. | 50 kN (compressive) |
| Answer» B. 50 kN (tensile) | |
| 1532. |
A bar of circular cross-section varies uniformly from a cross-section 2D to D. If extension of the bar is calculated treating it as a bar of average diameter, then the percentage error will be |
| A. | 10 |
| B. | 25 |
| C. | 33.33 |
| D. | 50 |
| Answer» C. 33.33 | |
| 1533. |
The total number, of independent equations that form the Lacey's regime theory is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 6 |
| Answer» C. 4 | |
| 1534. |
Consider the following statements :A : Single scaffolding consists of a single framework of standards, ledgers and potlogs constructed parallel to the wall.R : Potlogs are placed at both ends on frames when it is difficult to provide holes in the wall. Of these statments : |
| A. | both A and R are true and R is the correct explanation of A |
| B. | both A and R are true but R is not a correct explanation of A |
| C. | A is true but R is false |
| D. | A is false but R is true |
| Answer» D. A is false but R is true | |
| 1535. |
If the proportion of soil passing 75 micron sieve is 50% and the liquid limit and plastic limit are 40% and 20% respectively, then the group index of the soil is |
| A. | 3.8 |
| B. | 6.5 |
| C. | 38 |
| D. | 65 |
| Answer» C. 38 | |
| 1536. |
The beam shown in the given figure has a design bending moment value of |
| A. | 8 kNm |
| B. | 6 kNm |
| C. | 4 kNm |
| D. | 2 kNm |
| Answer» E. | |
| 1537. |
In each of the following examples certain quantity of work 'W' is done.1. The point of application of a force of (50i + 60j + 80k) in kN units moves through a distance given by (6i + 5j + 2.5k) in metres.2. A pump raises 2m3 of water through a height of 20 m (Take g = 10 m/s2).3. A shaft delivering a torque = 200 kNm makes 0.75 revolution.4. A couple (30i - 20j + 100k) in kNm units acting on a body rotates it through an angular displacement of (2i + 3j + 6k) radians.The correct sequence of these quantities of work 'W' arranged in order of their increasing magnitude is |
| A. | 1, 4, 2, 3 |
| B. | 2, 4, 1, 3 |
| C. | 3, 2, 1, 4 |
| D. | 2, 3, 4, 1 |
| Answer» C. 3, 2, 1, 4 | |
| 1538. |
Two sources generate noise levels of 90 dB and 94 dB respectively. The cumulative effect of these two noise levels on the human ear is |
| A. | 184 dB |
| B. | 95.5 dB |
| C. | 94 dB |
| D. | 92 dB |
| Answer» C. 94 dB | |
| 1539. |
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 | |
| 1540. |
A T-beam roof section has the following particulars :Thickness of slab 100 mmWidth of rib 300 mmDepth of beam 500 mmCentre to centre distance of beams 3.0 mEffective span of beams 6.0 mDistance between points of contraflexure is 3.60 m.The effective width of flange of the beam is |
| A. | 3000 mm |
| B. | 1900 mm |
| C. | 1600 mm |
| D. | 1500 mm |
| Answer» E. | |
| 1541. |
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. | 0.66736111111111 |
| B. | 0.33402777777778 |
| C. | 0.16736111111111 |
| D. | 0.084027777777778 |
| Answer» B. 0.33402777777778 | |
| 1542. |
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 | |
| 1543. |
To determine the length of a bridge proposed to be built across a wide river, the surveying method of choice would be |
| A. | tacheometry |
| B. | chain surveying |
| C. | hydrographic surveying |
| D. | triangulation |
| Answer» E. | |
| 1544. |
A 20 m chain was found to be 10 cm too long after chaining a distance of 2000 m. It was found to be 18 cm too long at the end of the day's work after chaining a total distance of 4000 m. What is the true distance if the chain was correct before the commencement of the day's work ? |
| A. | 3962 m |
| B. | 4019 m |
| C. | 3981 m |
| D. | 4038 m |
| Answer» C. 3981 m | |
| 1545. |
A point load applied at shear centre induces : |
| A. | Zero shear force |
| B. | Zero bending |
| C. | Pure twisting |
| D. | Pure bending |
| Answer» E. | |
| 1546. |
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 | |
| 1547. |
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 | |
| 1548. |
The difference between the sum of the angles of a plane triangle and the sum of the angles of a spherical triangle is one second when the triangle on the earth surface has an area of about |
| A. | 105 sq.km. |
| B. | 135 sq.km. |
| C. | 159 sq.km. |
| D. | 195 sq.km. |
| Answer» E. | |
| 1549. |
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. | |
| 1550. |
As per Lacey's regime equation, what is the flow velocity proportional to ? |
| A. | (Qf2)1/3 |
| B. | (Qf2)1/6 |
| C. | Q/f2 |
| D. | (Q/f)1/6 |
| Answer» C. Q/f2 | |