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.
| 1801. |
The base width of a soil gravity dam is 25 m. The material of the dam has a specific gravity of 2.56 and the dam is designed as an elementary profile ignoring uplift. What is the approximate allowable height of the dam ? |
| A. | 64 m |
| B. | 40 m |
| C. | 164 m |
| D. | 80 m |
| Answer» C. 164 m | |
| 1802. |
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 | |
| 1803. |
In the figure shows two blocks of equal weights designated as W1 and W2 connected together by a rod and resting on an inclined plane whose angle α can be varied. The coefficients of friction between the blocks and the surface of the plane are μ1 = 0.2 and μ2 = 0.3. The value of angle α at which the slipping will commence is given by |
| A. | tan α = 0.1 |
| B. | tan α = 0.2 |
| C. | tan α = 0.25 |
| D. | tan α = 0.8 |
| Answer» D. tan Œ± = 0.8 | |
| 1804. |
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 | |
| 1805. |
The kinetic energy in Nm of a circular disc of 20 m diameter and 10 cm thick, of material weighing 100 kg/m3, rotating above an axis through its centre at right angles to its place and making 2000 rpm is |
| A. | |
| B. | |
| Answer» C. | |
| 1806. |
Window sills in residential houses are normally kept at |
| A. | 83 to 90 cm above the floor level |
| B. | 80 to 90 cm above the floor level |
| C. | 78 to 88 cm above the floor level |
| D. | 75 to 85 cm above the floor level |
| Answer» E. | |
| 1807. |
A truss ABC, carries two horizontal and two vertical loads, as shown in the figure. The horizontal and vertical components of the reaction at A will be |
| A. | HA = 1000 kN ; VA = 1706.25 kN |
| B. | HA = 2000 kN ; VA = 2550 kN |
| C. | HA = 1000 kN ; VA = 2550 kN |
| D. | HA = 2000 kN ; VA = 1706.25 kN |
| Answer» C. HA = 1000 kN ; VA = 2550 kN | |
| 1808. |
Consider the following statements :The salient features of a bar chart over network are that :1. It is simple to draw and easy to understand.2. It is unable to depict interdependence of activities.3. It clearly distinguishes between critical and non-critical activities.4. It is not possible to crash activities to get optimum and minimum duration of the project.Which of the following statements given above are correct ? |
| A. | 1, 2, 3 and 4 |
| B. | 2 and 3 |
| C. | 1, 2 and 4 |
| D. | 1, 3 and 4 |
| Answer» D. 1, 3 and 4 | |
| 1809. |
In a situation where torsion is dominant, which one of the following is the desirable section ? |
| A. | Angle section |
| B. | Channel section |
| C. | I-section |
| D. | Box type section |
| Answer» E. | |
| 1810. |
Which type of plume may occur during winter nights ? |
| A. | Looping |
| B. | Inversion |
| C. | Coning |
| D. | Lofting |
| Answer» E. | |
| 1811. |
A cylindrical shell made of mild steel plate of 100 cm diameter is to be subjected to an internal pressure of 10 kg/cm2. If the material yields at 2000 kg/cm2, assuming factor of safety as four and using maximum principal stress theory, thickness of the plate will be |
| A. | 5 mm |
| B. | 10 mm |
| C. | 15 mm |
| D. | 20 mm |
| Answer» C. 15 mm | |
| 1812. |
If s is the shear strength, c and Φ are shear strength parameters, and σn is the normal stress at failure, then Coulomb's equation for shear strength of the soil can be represented by |
| A. | c = s + σs tan Φ |
| B. | c = s - σn tan Φ |
| C. | s = σn + c tan Φ |
| D. | s = c - σn tan Φ |
| Answer» C. s = œÉn + c tan Œ¶ | |
| 1813. |
A constant angle arch dam when compared to a constant radius arch dam utilizes concrete quantity of about |
| A. | 0.33 |
| B. | 0.43 |
| C. | 0.73 |
| D. | 1.43 |
| Answer» C. 0.73 | |
| 1814. |
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/m2. According to Skempton, the net ultimate bearing capacity is |
| A. | 420 kN/m2 |
| B. | 412.5 kN/m2 |
| C. | 385 kN/m2 |
| D. | 350 kN/m2 |
| Answer» D. 350 kN/m2 | |
| 1815. |
A flash mixer of 2.0 m3, with a velocity gradient of mixing mechanisms equal to 660/s, and fluid absolute viscosity of 1.0 x 10-3 Ns/m2 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 | |
| 1816. |
A symmetrical three-hinged parabolic arch of span L and rise h is hinged at springings and crown. It is subjected to a. U.d.l. W throughout the span. Which the banding moment at a section L/4 from the left support. |
| A. | WL2/8 |
| B. | WL2/16 |
| C. | WL2/8 h |
| D. | zero |
| Answer» B. WL2/16 | |
| 1817. |
The velocity distribution for flow over a plate is given by u = 0.5 y - y2 where u is the velocity in m/s at a distance y metre above the plate. If the dynamic viscosity of the fluid is 0.9 N/m2, then what is the shear stress at 0.20 m from the boundary? |
| A. | 0.9 N/m2 |
| B. | 1.8 N/m2 |
| C. | 2.25 N/m2 |
| D. | 0.09 N/m2 |
| Answer» E. | |
| 1818. |
Given that, t = thickness of the plates, b = width of the plates, d = diameter of the rivets, n = number of rivets in a line, σt = permissible tensile stress.The tearing strength of the joint is given by |
| A. | t(b - nd)σt |
| B. | t(b + nd)σt |
| C. | (bt - nd/t)σt |
| D. | (bt - nd/t)σt |
| Answer» B. t(b + nd)œÉt | |
| 1819. |
A flownet constructed to determine the seepage through an earth dam which is homogeneous but anisotropic, gave four flow channels and sixteen equipotential drops. The coefficients of permeability in the horizontal and vertical directions are 4 x 10-7 m/s and 1.0 x 10-7 m/s, respectively. If the storage head was 20 m, then the seepage per unit length of the dam (in m3/s) would be |
| A. | 5 x 10-7 |
| B. | 10 x 10-7 |
| C. | 20 x 10-7 |
| D. | 40 x 10-7 |
| Answer» C. 20 x 10-7 | |
| 1820. |
A symmetric parabolic arch of span 12m and rise 4 m has hinges at springings and at the crown. What is the influence line ordinate at the location 3m from one lower hinge ? |
| A. | 2.25 units |
| B. | 1.25 units |
| C. | 1.125 units |
| D. | 1.0 unit |
| Answer» B. 1.25 units | |
| 1821. |
A simply supported beam of span 'L' and uniform flexural rigidly EI, carries a central load 'W' and total uniformly distributed load 'W' throughout the span. The maximum deflection is given by |
| A. | 13 WL3/96 EI |
| B. | 5 WL3/384 EI |
| C. | 5 WL3/96 EI |
| D. | 13 WL3/384 EI |
| Answer» E. | |
| 1822. |
The three-hinged arch shown in the given figure will have value of H as |
| A. | 20 kN |
| B. | 30 kN |
| C. | 40 kN |
| D. | 50 kN |
| Answer» D. 50 kN | |
| 1823. |
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 | |
| 1824. |
On which one of the following concepts is the basic principle of structural design based ? |
| A. | Weak column strong beam |
| B. | Strong column and weak beam |
| C. | Equally strong column-beam |
| D. | Partial weak column-beam |
| Answer» C. Equally strong column-beam | |
| 1825. |
Dolphin is a type of which one of the following ? |
| A. | Pile foundation |
| B. | Isolated footing |
| C. | Raft foundation |
| D. | Caisson |
| Answer» B. Isolated footing | |
| 1826. |
In the case of a three-pinned parabolic arch carrying a uniformly distributed load on the entire span, then bending moment will be |
| A. | equal to that of a simply supported beam loaded in the same manner |
| B. | maximum at quarter span |
| C. | zero only at the centre |
| D. | zero throughout the span |
| Answer» E. | |
| 1827. |
In an aerial photo, the image of the top of a tower is found to be 10 cm from the centre of thephotograph. If the height of the tower is 100 m and the flying height of the aircraft is 1000 m above the average terrain height, then the height displacement of the image from the true position will be |
| A. | 10 mm |
| B. | 20 mm |
| C. | 50 mm |
| D. | 100 mm |
| Answer» B. 20 mm | |
| 1828. |
The "Back sight" reading on a vertically held staff at a point A on the floor along the centre line of a railway tunnel is 3.465 m, and the "Fore sight" on the inverted staff held at the roof of the tunnel just vertically above A is 1.115 m. The height of the tunnel along the centre line at floor point A is |
| A. | 2.310 m |
| B. | 3.465 m |
| C. | 4.620 m |
| D. | 6.930 m |
| Answer» D. 6.930 m | |
| 1829. |
What is the total degree of indeterminancy, both internal and external of the plane frame ? |
| A. | 10 |
| B. | 11 |
| C. | 12 |
| D. | 14 |
| Answer» B. 11 | |
| 1830. |
At a certain point in a structural member, there are perpendicular stresses 80 N/mm2 and 20 N/mm2, both tensile. What is the equivalent stress in simple tension, according to the maximum principal strain theory ? (Poisson's ratio = 0.25) |
| A. | zero |
| B. | 20 N/mm2 |
| C. | 60 N/mm2 |
| D. | 75 N/mm2 |
| Answer» E. | |
| 1831. |
In a direct shear test the shear stress and normal stress on a dry sand sample at failure are 0.6 kg/cm2 and 1 kg/cm2 respectively. The angle of internal friction of the sand will be nearly |
| A. | 25° |
| B. | 31° |
| C. | 37° |
| D. | 43° |
| Answer» C. 37¬∞ | |
| 1832. |
Which one of the following types of sleepers has the best shock absorbing capacity as well as dampening property ? |
| A. | CST sleeper |
| B. | Wooden sleeper |
| C. | Concrete sleeper |
| D. | Steel sleeper |
| Answer» D. Steel sleeper | |
| 1833. |
Consider the following statements :Collision diagram is used to1. study accident pattern2. eliminate accidents3. determine remedial measures4. make statistical analysis of accidentsOf these statements : |
| A. | 1 and 2 are correct |
| B. | 1 and 3 are correct |
| C. | 3 and 4 are correct |
| D. | 2 and 4 are correct |
| Answer» E. | |
| 1834. |
Which one of the following is employed to determine strength of hardened existing concrete structure ? |
| A. | Bullet test |
| B. | Kelly ball test |
| C. | Rebound hammer test |
| D. | Cone penetrometer |
| Answer» D. Cone penetrometer | |
| 1835. |
The maximum energy stored at elastic limit of a material is called |
| A. | resilience |
| B. | proof resilience |
| C. | modulus of resilience |
| D. | bulk resilience |
| Answer» C. modulus of resilience | |
| 1836. |
In which one of the following zones is a logarithmic spiral shape of failure surface assumed in the case of bearing capacity analysis of C-φ soils ? |
| A. | Active zone |
| B. | Passive zone |
| C. | Radial shear'zone |
| D. | Surcharge zone |
| Answer» D. Surcharge zone | |
| 1837. |
In the riveted connection shown in the given figure, the rivets subjected to maximum stress would include |
| A. | A, B, C and D |
| B. | C, D, E and F |
| C. | E, F, G and H |
| D. | A, B, G and H |
| Answer» E. | |
| 1838. |
Guide banks are provided to |
| A. | train the flow of a river along a specified course |
| B. | reduce the peak flood discharge |
| C. | confine the width of river |
| D. | increase the water way |
| Answer» B. reduce the peak flood discharge | |
| 1839. |
Which one of the following is not related to theories of creep of rails ? |
| A. | Wave theory |
| B. | Percussion theory |
| C. | Drag theory |
| D. | Reversal theory |
| Answer» E. | |
| 1840. |
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. | |
| 1841. |
Which one of the following is the correct statement ?Refractory bricks resist: |
| A. | high temperature |
| B. | chemical action |
| C. | dampness |
| D. | all the above three |
| Answer» B. chemical action | |
| 1842. |
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, 0.95 |
| B. | 19 mm, 1.00 |
| C. | 22 mm, 1.10 |
| D. | 24 mm, 1.20 |
| Answer» C. 22 mm, 1.10 | |
| 1843. |
Which of the following advantages accrue to the use of Articulate Dump Trucks (ADT) over Rigid Dump Trucks (RDT) for construction and earth moving work ?1. Higher manoeuverability2. Low turning radius.3. Lower fleet costs.Select the correct answer using the code given below : |
| A. | 1, 2 and 3 |
| B. | 1 and 2 |
| C. | 1 and 3 |
| D. | 2 and 3 |
| Answer» C. 1 and 3 | |
| 1844. |
According to Boussinesq's theory, the vertical stress at a point in a semi-infinite soil mass depends upon |
| A. | point load, coordinates of the point and modulus of elasticity of soil |
| B. | point load, coordinates of the point, modulus of elasticity of soil and its Poisson's ratio |
| C. | point load and coordinates of the point |
| D. | point load, coordinates of the point, modulus of elasticity of soil and its density. |
| Answer» D. point load, coordinates of the point, modulus of elasticity of soil and its density. | |
| 1845. |
Consider the following statements about concrete sleepers :1. They improve the track modulus.2. They have good scrap value.3. They render transportation easy4. They maintain the gauge quite satisfactorily.Of these statements : |
| A. | 1 and 2 are correct |
| B. | 2 and 3 are correct |
| C. | 3 and 4 are correct |
| D. | 1 and 4 are correct |
| Answer» E. | |
| 1846. |
The approximate proportion of dry cement mortar required for brick work is |
| A. | 0.6 |
| B. | 0.45 |
| C. | 0.3 |
| D. | 0.1 |
| Answer» D. 0.1 | |
| 1847. |
Consider the following statements :Higher water-cement ratio in concrete results in1. stronger mix.2. better workable mix.3. a weak mix.4. less bleeding. |
| A. | 1 and 2 are correct |
| B. | 2 and 3 are correct |
| C. | 3 and 4 are correct |
| D. | 1 and 4 are correct |
| Answer» C. 3 and 4 are correct | |
| 1848. |
Which of the following statements is NOT correct ? |
| A. | Chlorides in potable water may be present from 300 ppm to 500 ppm. |
| B. | In order to be safe against pathogenic bacteria residual chlorine should remain between 0.05 ppm and 0.20 ppm. |
| C. | Presence of iron and maganese in excess of 0.3 ppm in dirinking water is objectionable. |
| D. | pH value for pure water is nearly 7. |
| Answer» B. In order to be safe against pathogenic bacteria residual chlorine should remain between 0.05 ppm and 0.20 ppm. | |
| 1849. |
In the force system shown in the figure, the force CA should be |
| A. | 5 t |
| B. | - 5 t |
| C. | 4 t |
| D. | - 4 t |
| Answer» B. - 5 t | |
| 1850. |
Consider the following statements :If a simply supported beam of uniform cross-section is subjected to a clockwise moment at the left support and an equal anticlockwise moment at the right support, then the1. B.M.D. will be in the shape of a rectangle.2. S.F.D. will be a straight line coinciding with the base.3. deflection curve will be in the shape of a circular arc.Of these statements : |
| A. | 1, 2 and 3 are correct |
| B. | 1 and 2 are correct |
| C. | 1 and 3 are correct |
| D. | 2 and 3 are correct |
| Answer» D. 2 and 3 are correct | |