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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.
| 951. |
An inverted siphon is a |
| A. | device for distributing septic tank effluent to a soil absorption system |
| B. | device for preventing overflow from elevated water storage tank |
| C. | device for preventing crown corrosion of sewer |
| D. | section of sewer which is dropped below the hydraulic grade line in order to avoid an obstacle. |
| Answer» E. | |
| 952. |
The expression for the specific speed of a pump : |
| A. | does not include the diameter of the impeller |
| B. | yields larger values for radial pumps than for axial flow pump |
| C. | is necessarily non dimensional |
| D. | includes power as one of the variables |
| Answer» D. includes power as one of the variables | |
| 953. |
The most commonly used sampler for obtaining a disturbed sample of the soil is |
| A. | split spoon sampler |
| B. | open drive sampler |
| C. | piston sampler |
| D. | thin wall shelby tube sampler |
| Answer» B. open drive sampler | |
| 954. |
Which one of the following set of values give the minimum clear cover (in mm) for the main reinforcements in the slab, beam, column and footing, respectively, according to IS : 456-1978 ? |
| A. | 20, 25, 30, 75 |
| B. | 5, 15, 25, 50 |
| C. | 15, 25, 40, 75 |
| D. | none of the above |
| Answer» D. none of the above | |
| 955. |
Two flow patterns are represented by their stream functions 1 and 2 as given below: 1 = x2 + y2, 2 = 2xy If these two patterns are superimposed on one another, the resulting streamline pattern can be represented by one of the following : |
| A. | A family of parallel straight lines |
| B. | A family of circles |
| C. | A family of parabolas |
| D. | A family of hyperbolas |
| Answer» C. A family of parabolas | |
| 956. |
The plan of stairs supported at each end by landings spanning parallel with risers is shown in the below figure. The effective span of staircase slab is |
| A. | 3000 mm |
| B. | 4600 mm |
| C. | 4750 mm |
| D. | 6400 mm |
| Answer» C. 4750 mm | |
| 957. |
The plan of a survey plotted to a scale of 10 m to 1 cm is reduced in such a way that a line originally 10 cm long now measures 9 cm. The area of the reduced plan is measured as 81 cm2. The actual (m2) of the survey is |
| A. | 10000 |
| B. | 6561 |
| C. | 1000 |
| D. | 656 |
| Answer» B. 6561 | |
| 958. |
Width of carriage way for a single lane is recommended to be |
| A. | 7.5 m |
| B. | 7.0 m |
| C. | 3.75 m |
| D. | 5.5 m |
| Answer» D. 5.5 m | |
| 959. |
The shape of the cross-section, which has the largest shape factor, is |
| A. | rectangular |
| B. | I-section |
| C. | diamond |
| D. | solid circular |
| Answer» D. solid circular | |
| 960. |
The lateral ties in a reinforced concrete rectangular column uncle: axial compression are used to : |
| A. | avoid the buckling of the longitudinal steel under compression |
| B. | provide adequate shear capacity |
| C. | provide adequate confinement to concrete |
| D. | reduce the axial deformation of the column |
| Answer» B. provide adequate shear capacity | |
| 961. |
Generally (fatigue life of welded steel structure/fatigue life of riveted steel structure) ratio is, |
| A. | smaller than 1 |
| B. | equal to 1 |
| C. | greater than 1 |
| D. | greater than 2.1 |
| Answer» B. equal to 1 | |
| 962. |
The modulus of rupture of concrete gives |
| A. | the direct tensile strength of the concrete |
| B. | the direct compressive strength of the concrete |
| C. | the tensile strength of the concrete under bending |
| D. | the characteristic strength of the concrete |
| Answer» D. the characteristic strength of the concrete | |
| 963. |
Cohesion in soil |
| A. | decreases active pressure and increases passive resistance |
| B. | decreases both active pressure and passive resistance |
| C. | increases the active pressure and decreases the passive resistance |
| D. | increases both active pressure and passive resistance. |
| Answer» E. | |
| 964. |
Well foundations are commonly used as foundations for the following structures : |
| A. | Water tanks |
| B. | Bridges |
| C. | Buildings |
| D. | Reciprocating machines |
| Answer» C. Buildings | |
| 965. |
The unit weight of a soil at zero air voids depends on : |
| A. | specific gravity |
| B. | water content |
| C. | unit weight of water |
| D. | all the above |
| Answer» E. | |
| 966. |
The following two statements are made with reference to the planar truss shown below The truss is statically determinateThe truss is kinematically determinate With refernece to the above statements, which of the following applies ? |
| A. | Both statements are ture. |
| B. | Both statements are false. |
| C. | II is true but I false. |
| D. | I is true but II is false. |
| Answer» D. I is true but II is false. | |
| 967. |
The total thickness of pavement by CBR method depends on the CBR value of |
| A. | base course |
| B. | surface course |
| C. | subgrade |
| D. | all layers |
| Answer» E. | |
| 968. |
The penetration test for bitumen is conduced at a temperature of |
| A. | 60 C |
| B. | 37 C |
| C. | 25 C |
| D. | 50 C |
| Answer» D. 50 C | |
| 969. |
Storage coefficient of a compressible confined aquifer is a function of |
| A. | specific weight of water, thickness of the aquifer, compressibility of the aquifer and that of water |
| B. | permeability, thickness and compressibility of aquifer and compressibility of water |
| C. | transmissibility of the aquifer and compressibility of water |
| D. | transmissibility of aquifer and specific yield of aquifer |
| Answer» E. | |
| 970. |
If a single pipe of length L and diameter D is to be replaced by three pipes of same material, same length and equal diameter d (d < D), to convey the same total discharge under the same head loss, then d and D are related by |
| A. | <img src="/_files/images/civil-engineering/gate-exam-questions/899-147-1.png"> |
| B. | <img src="/_files/images/civil-engineering/gate-exam-questions/899-147-2.png"> |
| C. | <img src="/_files/images/civil-engineering/gate-exam-questions/899-147-3.png"> |
| D. | <img src="/_files/images/civil-engineering/gate-exam-questions/899-147-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/gate-exam-questions/899-147-2.png"> | |
| 971. |
The settlement of prototype in granular material may be estimated using plate load test data from the following expression : |
| A. | <img src="/_files/images/civil-engineering/gate-exam-questions/902-177-1.png"> |
| B. | <img src="/_files/images/civil-engineering/gate-exam-questions/902-177-2.png"> |
| C. | <img src="/_files/images/civil-engineering/gate-exam-questions/902-177-3.png"> |
| D. | <img src="/_files/images/civil-engineering/gate-exam-questions/902-177-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/gate-exam-questions/902-177-2.png"> | |
| 972. |
If an ascending gradient of 1 in 50 meets another ascending gradient of 1 in 30 then the deviation angle is : |
| A. | <img src="/_files/images/civil-engineering/gate-exam-questions/900-161-1.png"> |
| B. | <img src="/_files/images/civil-engineering/gate-exam-questions/900-161-2.png"> |
| C. | <img src="/_files/images/civil-engineering/gate-exam-questions/900-161-3.png"> |
| D. | <img src="/_files/images/civil-engineering/gate-exam-questions/900-161-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/gate-exam-questions/900-161-3.png"> | |
| 973. |
The BOD removal efficiency, in percentage, during primary treatmet under normal conditions is about |
| A. | 65% |
| B. | 85% |
| C. | 30% |
| D. | Zero |
| Answer» B. 85% | |
| 974. |
A cantilever beam of span 'L' is loaded with a concentrated load 'P' at the free end. Deflection of the beam at the free end is |
| A. | <img src="/_files/images/civil-engineering/gate-exam-questions/896-116-1.png"> |
| B. | <img src="/_files/images/civil-engineering/gate-exam-questions/896-116-2.png"> |
| C. | <img src="/_files/images/civil-engineering/gate-exam-questions/896-116-3.png"> |
| D. | <img src="/_files/images/civil-engineering/gate-exam-questions/896-116-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/gate-exam-questions/896-116-4.png"> | |
| 975. |
The specific gravity of paving bitumen as per IS:73-1992 lies between |
| A. | 1.10 and 1.06 |
| B. | 1.06 and 1.02 |
| C. | 1.02 and 0.97 |
| D. | 0.97 and 0.92 |
| Answer» D. 0.97 and 0.92 | |
| 976. |
The ratio of unconfined compressive strength of an undisturbed sample of soil to that of a remoulded sample, at the same water content, is known as : |
| A. | activity |
| B. | damping |
| C. | plasticity |
| D. | sensitivity |
| Answer» E. | |
| 977. |
The sequent depth ratio of a hydraulic jump in a rectangular horizontal channel is 10.30. The Froude Number at the beginning of the jump is : |
| A. | 5.64 |
| B. | 7.63 |
| C. | 8.05 |
| D. | 13.61 |
| Answer» C. 8.05 | |
| 978. |
Shear centre for an angle-purlin as shown in the below figure is located at, |
| A. | <i>X</i> |
| B. | <i>Y</i> |
| C. | <i>Z</i> |
| D. | none |
| Answer» B. <i>Y</i> | |
| 979. |
The parameters in Horton's infiltration equation are given as, fo = 7.62 cm/hour, fc = 1.34 cm/hour and k = 4.182/hour. For assumed continuous ponding the cumulative infiltration at the end of 2 hours is |
| A. | 2.68 cm |
| B. | 1.50 cm |
| C. | 1.34 cm |
| D. | 4.18 cm |
| Answer» D. 4.18 cm | |
| 980. |
The temporary hardness of water, is caused by: |
| A. | dissolved carbondioxide |
| B. | bicarbonates and carbonates of calcium and magnesium |
| C. | bicarbonates of sodium and potassium |
| D. | carbonates of calucium and magnesium |
| Answer» C. bicarbonates of sodium and potassium | |
| 981. |
If = nominal diameter of reinforcing bar, fs = compressive stress in the bar and fbd= design bond stress of concrete, the anchorage length, La of straight bar in compression is equal to : |
| A. | <img src="/_files/images/civil-engineering/gate-exam-questions/891-59-1.png"> |
| B. | <img src="/_files/images/civil-engineering/gate-exam-questions/891-59-2.png"> |
| C. | <img src="/_files/images/civil-engineering/gate-exam-questions/891-59-4.png"> |
| D. | <img src="/_files/images/civil-engineering/gate-exam-questions/891-59-3.png"> |
| Answer» E. | |
| 982. |
The centre of pressure of a liquid on a plane surface immersed vertically in a static body of liquid, always lies below the centroid of the surface area, because |
| A. | in liquids the pressure acting is same in-all directions |
| B. | there is no shear stress in liquids at rest |
| C. | the liquid pressure is constant over depth |
| D. | the liquid pressure increases linearly with depth |
| Answer» E. | |
| 983. |
Alligator or map cracking is the common type of failure in |
| A. | concrete pavements |
| B. | bituminous surfacing |
| C. | gravel roads |
| D. | WBM construction |
| Answer» C. gravel roads | |
| 984. |
A steel beam supporting loads from the floor slab as well as from wall is termed as |
| A. | Stringer beam |
| B. | Lintel beam |
| C. | Spandrel beam |
| D. | Header beam |
| Answer» B. Lintel beam | |
| 985. |
A weir on a permeable foundation with downstream sheet pile is shown in the figure below. The exit gradient as per Khosla's method is |
| A. | 1 in 6.0 |
| B. | 1 in 5.0 |
| C. | 1 in 3.4 |
| D. | 1 in 2.5 |
| Answer» D. 1 in 2.5 | |
| 986. |
Muskingum method for routing of flood |
| A. | is used for routing floods through reservoirs |
| B. | is a method of routing that uses continuity the momentum equations |
| C. | is a hydrologic method of routing floods through streams |
| D. | is one in which only energy equation is used |
| Answer» C. is a hydrologic method of routing floods through streams | |
| 987. |
A frame ABCD is supported by a roller at A and is on a hinge at C as shown below The reaction at the roller end A is given by |
| A. | P |
| B. | 2P |
| C. | P/2 |
| D. | Zero. |
| Answer» E. | |
| 988. |
Compaction by vibratory roller is the best method of compaction in case of |
| A. | moist silty sand |
| B. | well graded dry sand |
| C. | clay of medium compressibility |
| D. | silt of high compressibility |
| Answer» C. clay of medium compressibility | |
| 989. |
A reinforced concrete wall carrying vertical loads is generally designed as per recommendations given for columns. The ratio of minimum reinforcements in the vertical and horizontal directions is |
| A. | 2 : 1 |
| B. | 5 : 3 |
| C. | 1 : 1 |
| D. | 3 : 5 |
| Answer» B. 5 : 3 | |
| 990. |
Excessive fluoride in drinking water causes |
| A. | Alzheimer's disease |
| B. | Mottling of teeth and embrittlement of bones |
| C. | Methemoglobinemia |
| D. | Skin cancer |
| Answer» C. Methemoglobinemia | |
| 991. |
A 1 : 30 model of an ogee spillway crest records an acceleration of 1.3 m/s2 at a certain location. The homologous value of the acceleration in the prototype in m/s2 , is |
| A. | 0.043 |
| B. | 0.237 |
| C. | 1.300 |
| D. | 7.120 |
| Answer» D. 7.120 | |
| 992. |
The value of the camber recommended for cement concrete roads in areas of heavy rainfall is : |
| A. | 1 in 25 |
| B. | 1 in 33 |
| C. | 1 in 40 |
| D. | 1 in 50 |
| Answer» E. | |
| 993. |
A waste water sample diluted to 100 times with aeration water had an initial dissolved oxygen (DO) of 7.0 mg/l and after 5 days of incubation at 20 C, the DO was zero. The BOD of waste water is : |
| A. | 700 mg/l |
| B. | 100 mg/l |
| C. | cannot be determined |
| D. | 7mg/l |
| Answer» B. 100 mg/l | |
| 994. |
Rivets and bolts subjected to both shear stress ( vf , cal) and axial tensile stress ( tf , cal) shall be so proportioned that the stresses do not exceed the respective allowable stresses vf and tf and the value of exceed does not exceed |
| A. | 1.0 |
| B. | 1.2 |
| C. | 1.4 |
| D. | 1.8 |
| Answer» D. 1.8 | |
| 995. |
At the same mean velocity, the ratio of head loss per unit length for a sewer pipe flowing full to that for the same pipe flowing half full would be : |
| A. | 2.0 |
| B. | 1.63 |
| C. | 1.00 |
| D. | 0.61 |
| Answer» C. 1.00 | |
| 996. |
As per IS : 800-1984 the minimum pitch of rivets in a row is recommended as the diameter of the rivet times |
| A. | 2.0 |
| B. | 2.5 |
| C. | 3.0 |
| D. | 4.0 |
| Answer» C. 3.0 | |
| 997. |
Water emerges from an ogee spillway with velocity 13.72 m/s and depth = 3.0 m at its toe. The tail water depth required to form a hydraulic jump at the toe is |
| A. | 6.48 m |
| B. | 5.24 m |
| C. | 3.24 m |
| D. | 2.24 m |
| Answer» D. 2.24 m | |
| 998. |
In a BOD test, 5 ml of waste is added to 295 ml of aerated pure water. Initial dissolved oxygen (D.O) content of the diluted sample is 7.8 mg/l. After 5 days of incubation at 20 C, the D.O. content of the sample is reduced to 4.4 mg/l. The BOD of the waste water is : |
| A. | 196 mg/l |
| B. | 200 m/l |
| C. | 204 mg/l |
| D. | 208 mg/l |
| Answer» C. 204 mg/l | |
| 999. |
If the pump head is 75 m, discharge is 0.464 m3/s and the motor speed is 1440 rpm at rated condition, the specific speed of the pump is about |
| A. | 4 |
| B. | 26 |
| C. | 38 |
| D. | 1440 |
| Answer» D. 1440 | |
| 1000. |
Two primary air pollutants are |
| A. | sulphur oxide and ozone |
| B. | nitrogen oxide and peroxyacetylnitrate |
| C. | sulphur oxide and hydrocarbon |
| D. | ozone and peroxyacetynitrate |
| Answer» D. ozone and peroxyacetynitrate | |