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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.
| 1751. |
The dry density of a soil is 1.5 g/cc. If the saturation water content were 50%, then its saturated density and submerged density would, respectively, be |
| A. | 1.5 g/cc and 1.0 g/cc |
| B. | 2.0 g/cc and 1.0 g/cc |
| C. | 2.25 g/cc and 1.25 g/cc |
| D. | 2.0 g/cc and 1.50 g/cc |
| Answer» D. 2.0 g/cc and 1.50 g/cc | |
| 1752. |
Consider the following soil parameters and conditions :1. Drainage conditions2. Thickness of layer3. Initial void ratio4. Over-burden pressureThe magnitude of settlement is influenced by, |
| A. | 1, 2 and 3 |
| B. | 2, 3 and 4 |
| C. | 1, 3 and 4 |
| D. | 1, 3 and 4 |
| Answer» C. 1, 3 and 4 | |
| 1753. |
In the preliminary treatment of wastewater, skimming tanks are often included in the treatment scheme. Various features of skimming tanks are that these :1. can remove general floating matter.2. can remove oily and greasy matter.3. have detention time of 30 min.4. employ compressed air blown through diffusers.Which of these statements are correct ? |
| A. | 1 and 3 |
| B. | 2 and 4 |
| C. | 2 and 3 |
| D. | 1 and 2 |
| Answer» C. 2 and 3 | |
| 1754. |
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 | |
| 1755. |
Consider the following stages in the manufacturing of bricks :1. Weathering2. Moulding3. TemperingThe correct sequence of these stages in the manufacturing of the bricks, is |
| A. | 1, 2, 3 |
| B. | 2, 3, 1 |
| C. | 1, 3, 2 |
| D. | 3, 2, 1 |
| Answer» D. 3, 2, 1 | |
| 1756. |
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 | |
| 1757. |
The displacement method is also referred to as which one of the following ? |
| A. | Minimum strain energy method |
| B. | Maxwell-Mohor method |
| C. | Consistent deformation method |
| D. | Slope-deflection method |
| Answer» E. | |
| 1758. |
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 | |
| 1759. |
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 | |
| 1760. |
A person of height 1.65 m standing on a cliff of height 20 m above the water level on sea-shore can sight a ship at a distance of about |
| A. | 10 km |
| B. | 18 km |
| C. | 30 km |
| D. | 40 km |
| Answer» C. 30 km | |
| 1761. |
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. | |
| 1762. |
Which one of the following statements is not correct ?A control section in an open channel is the site |
| A. | where the flow quantity can be controlled |
| B. | at which flow is known to be critical |
| C. | where the discharge can be measured |
| D. | where the specific energy is determined |
| Answer» C. where the discharge can be measured | |
| 1763. |
For a given storm, other factors remaining same : |
| A. | Basins with large drainage densities give smaller flood peaks. |
| B. | Low drainage density basins give shorter time bases of hydrographs. |
| C. | The flood peak is independent of the drainage density. |
| D. | Basins having low drainage density give smaller peaks in flood hydrographs. |
| Answer» E. | |
| 1764. |
Consider the following statements :Selection of the type and grade of the bituminous binder is made on the basis of1. cost of the binder material.2. climatic conditions of the area and the construction technique.3. degree of importance of the road.4. thickness of pavement layer to be constructed.Which of these statements is/are correct ? |
| A. | 1 only |
| B. | 2 only |
| C. | 1, 2 and 4 |
| D. | 1, 2 and 3 |
| Answer» C. 1, 2 and 4 | |
| 1765. |
What is the ratio of the permissible bearing stress in power driven shop rivets relative to the yield stress of mild steel ? |
| A. | 1.0 |
| B. | 0.8 |
| C. | 0.6 |
| D. | 0.4 |
| Answer» C. 0.6 | |
| 1766. |
If the methyl orange alkalinity of water equals or exceeds total hardness, all of the harness is |
| A. | non-carbonate hardness |
| B. | carbonate hardness |
| C. | pseudo hardness |
| D. | negative non-carbonate hardness |
| Answer» C. pseudo hardness | |
| 1767. |
Which one of the following statements is correct ? The number of unknowns to be determined in the stiffness method is equal to : |
| A. | the static indeterminacy |
| B. | the kinematic indeterminacy |
| C. | the sum of kinematic indeterminacy and static indeterminacy |
| D. | two times the number of supports |
| Answer» D. two times the number of supports | |
| 1768. |
Which one of the following statements is not correct ? |
| A. | Models are always smaller than the prototypes. |
| B. | Dynamic similarity between a model and a prototype can be verified by equating Reynold's number in a viscous flow. |
| C. | Mach number achieves significance when the velocity of fluid approaches or exceeds the sonic velocity. |
| D. | Distorted models are always exaggerated on a vertical scale. |
| Answer» B. Dynamic similarity between a model and a prototype can be verified by equating Reynold's number in a viscous flow. | |
| 1769. |
The construction of impounding reservoir is required when |
| A. | average annual flow in the stream is lower than average demand |
| B. | the rate of flow in the stream, in dry season in more than the demand |
| C. | the rate of flow in the stream, in dry season is less than the demand |
| D. | the rate of flow in the stream is equal to the demand |
| Answer» D. the rate of flow in the stream is equal to the demand | |
| 1770. |
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 | |
| 1771. |
If the line of sight between two stations A and B, on sea, and 80 km apart, makes tangent at point A, then the minimum elevation of the signal required at B (considering the coefficient of refraction "m" = 0.08 and the mean radius of earth as 6400 km) will be |
| A. | 42 m |
| B. | 210 m |
| C. | 420 m |
| D. | 840 m |
| Answer» D. 840 m | |
| 1772. |
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 | |
| 1773. |
What is efflorescence ? |
| A. | Formation of white patches on the brick surface due to insoluble salts in the brick clay |
| B. | Swelling of brick due to presence of carbonaceous matter and gas |
| C. | Deformation of brick due to exposure to rain |
| D. | Impurities in the brick clay which show after burning |
| Answer» B. Swelling of brick due to presence of carbonaceous matter and gas | |
| 1774. |
Consider the following statements regarding a beam of uniform cross-section simply supported at its ends and carrying a concentrated load at one of its third points :1. Its deflection under the load will be maximum.2. The bending moment under the load will be maximum.3. The deflection at the mid-point of the span will be maximum.4. The slope at the nearer support will be maximum.Of these statements : |
| A. | 1 and 3 are correct |
| B. | 2 and 4 are correct |
| C. | 1 and 2 are correct |
| D. | 3 and 4 are correct |
| Answer» C. 1 and 2 are correct | |
| 1775. |
A pipeline of 5 cm diameter is reduced abruptly to 2.5 cm diameter at a section to enable measurement of the water flowing through it. The loss of head at the contraction is 0.5 m. Given that, in metric units, 2g = 4.43 and g = 3.132, the mean velocity in the reduced section will be |
| A. | 0.5 m/sec |
| B. | 1.1075 m/sec |
| C. | 1.566 m/sec |
| D. | 4.43 m/sec |
| Answer» E. | |
| 1776. |
A clay layer, 5 m thick undergoes 50% consolidation in 5 years when subjected to an average pressure increase of 50 kN/m2. If the clay layer were 10 m thick, in what period would it undergo 50% consolidation for the same pressure ? |
| A. | 10 years |
| B. | 2.5 years |
| C. | 25 years |
| D. | 20 years |
| Answer» E. | |
| 1777. |
Which one of the following is the most preferred wood for high quality and durable furniture ? |
| A. | Sandalwood |
| B. | Deodar wood |
| C. | Teakwood |
| D. | Shisham wood |
| Answer» D. Shisham wood | |
| 1778. |
For ornamental work, which type(s) of bricks is/ are preferred ?1. Silica bricks2. Silica lime bricks3. Bricks produced in autoclavesSelect the correct answer using the code given below : |
| A. | 1 and 3 only |
| B. | 2 and 3 only |
| C. | 1 only |
| D. | 2 only |
| Answer» C. 1 only | |
| 1779. |
In case of footing on the surface of shallow depth is very dense sand, which one of the following types of failure is likely to occur? |
| A. | Punching shear failure |
| B. | Local shear failure |
| C. | General shear failure |
| D. | Any of the above three |
| Answer» D. Any of the above three | |
| 1780. |
The initial and final void ratios of a clay sample in a consolidation test are 1 and 0.5, respectively. If the initial thickness of the sample is 2.4 cm, then its final thickness will be |
| A. | 1.3 cm |
| B. | 1.8 cm |
| C. | 1.9 cm |
| D. | 2.2 cm |
| Answer» C. 1.9 cm | |
| 1781. |
Cohesion is 15 kN/m2, the unit weight of soil is 20 kN/m3, the factor of safety is 1.5 and stability number is 0.05; the safe maximum height of the slope is |
| A. | 5.0 m |
| B. | 8.0 m |
| C. | 10.0 m |
| D. | 12.0 m |
| Answer» D. 12.0 m | |
| 1782. |
The nail diameter should not be more than(t = least thickness of the wooden member to be connected) |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-360-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-360-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-360-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-360-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/57-360-2.png"> | |
| 1783. |
In cement concrete pavements, tie bars are installed in |
| A. | expansion joints |
| B. | contraction joints |
| C. | warping joints |
| D. | longitudinal joints |
| Answer» E. | |
| 1784. |
What does the wind Rose Diagram (WRD) for orientation of airport runway give ? |
| A. | Direction of wind |
| B. | Direction and duration of wind |
| C. | Direction, duration and intensity of wind |
| D. | None of the above |
| Answer» B. Direction and duration of wind | |
| 1785. |
The head loss caused due to sudden expansion of pipe from area A1 to area A2 and the velocity from V1 to V2 is given by |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/80-492-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/80-492-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/80-492-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/80-492-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/80-492-2.png"> | |
| 1786. |
A simply supported continuous beam with two equal spans carries uniformly distributed load w on entire length of the beam. If each span has a length L, the bending moment at the central support is |
| A. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-1148-1.png"> |
| B. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-1148-2.png"> |
| C. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-1148-3.png"> |
| D. | <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-1148-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/upsc-civil-service-exam-questions/01-1148-3.png"> | |
| 1787. |
Which one of the follewing represents a circumpolar star ? |
| A. | Upper culmination above horizon, lower culmination below horizon |
| B. | Both upper and lower culminations below horizon |
| C. | Both upper and lower culminations above horizon |
| D. | Altitude at upper culmination is minimum |
| Answer» D. Altitude at upper culmination is minimum | |
| 1788. |
An imaginary line passing through the optical centre of the objective and the optical centre of the eye-piece in the telescope of a surveying instrument is called the |
| A. | horizontal axis |
| B. | line of collimation |
| C. | optical axis of the telescope |
| D. | reference axis |
| Answer» C. optical axis of the telescope | |
| 1789. |
Which of the following air pollutants is/are responsible for photochemical smog ?1. Oxides of nitrogen2. Ozone3. Unburnt hydrocarbons4. Carbon monoxideSelect the correct answer from the codes given below : |
| A. | 1 alone |
| B. | 2, 3 and 4 |
| C. | 1, 3 and 4 |
| D. | 1 and 3 |
| Answer» E. | |
| 1790. |
Consider the following statements :Excess of sulphur in steel results in1. red shortness2. segregation 3. coldshortness.Of these statements : |
| A. | 1 alone is correct |
| B. | 2 alone is correct |
| C. | 2 and 3 are correct |
| D. | 1 and 2 are correct |
| Answer» B. 2 alone is correct | |
| 1791. |
Consider the following statements :Some amount of chlorides is allowed in drinking water because1. it helps in killing bacteria.2. small quantity of chlorides adds to the taste3. it is not injurious to human health.4. it is not economical to remove it completely.Which of these statements are correct ? |
| A. | 1, 2 and 4 |
| B. | 1, 2 and 3 |
| C. | 2, 3 and 4 |
| D. | 1, 3 and 4 |
| Answer» E. | |
| 1792. |
Which of the following materials are used as landfill salients for the control of gas and leachate moments ?1. Lime2. Sand3. Bentonite4. Fly ash5. Butyl rubberSelect the correct answer from the codes given below : |
| A. | 1, 2 and 3 |
| B. | 4 and 5 |
| C. | 3 and 5 |
| D. | 1, 2 and 4 |
| Answer» D. 1, 2 and 4 | |
| 1793. |
At a certain point in a strained material, there are two mutually perpendicular stresses x = 100 N/mm2 (Tensile) and x = 50 N/mm2 (Compressive). [Notations : Tension (+); Compression (-) ]What are the values of the principal stresses in N/mm2 at that point ? |
| A. | 100, -50 |
| B. | -100, 50 |
| C. | 75, -25 |
| D. | -75, 25 |
| Answer» B. -100, 50 | |
| 1794. |
Which one of the following shovel excavators is considered most efficient in loading carriers ? |
| A. | Dipper shovel |
| B. | Dragline |
| C. | Backhoe |
| D. | Clamshell |
| Answer» D. Clamshell | |
| 1795. |
Brake is applied on a vehicle which then skids a distance of 16 m before coming to stop. If the developed average coefficient of friction between the tyres and the pavement is 0.4, then the speed of the vehicle before skidding would have been nearly |
| A. | 20 kmph |
| B. | 30 kmph |
| C. | 40 kmph |
| D. | 50 kmph |
| Answer» D. 50 kmph | |
| 1796. |
A sewer is laid from a manhole A to a manhole B, 250 m apart along a downward gradient of 1 in 250. If the reduced level of the invert at A is 205.75 m and the height of the boring rod is 3 m, then, reduced level of the sight rail at B, is |
| A. | 202.75 m |
| B. | 206.75 m |
| C. | 208.75 m |
| D. | 211.75 m |
| Answer» C. 208.75 m | |
| 1797. |
A body of mass 4 kg moving at 12 m/s collides with another body of mass 8 kg and adheres to it. The resultant velocity of the total mass in m/s will be |
| A. | 4.0 |
| B. | 5.0 |
| C. | 6.0 |
| D. | 7.0 |
| Answer» B. 5.0 | |
| 1798. |
A rectangular channel carries a discharge of 5 m3/s. The channel is 2 m wide. What is the critical depth of the flow ? |
| A. | 1.25 m |
| B. | 1.07 m |
| C. | 0.565 m |
| D. | 0.86 m |
| Answer» E. | |
| 1799. |
The discharge per unit drawdown at the well is known as : |
| A. | Specific yield |
| B. | Specific storage |
| C. | Specific retention |
| D. | Specific capacity |
| Answer» E. | |
| 1800. |
Maximum shear stress developed in a beam of rectangular section bears a constant ratio to its average shear stress and this ratio is equal to |
| A. | 1.33 |
| B. | 1.5 |
| C. | 2.0 |
| D. | 2.5 |
| Answer» C. 2.0 | |