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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.
| 4701. |
While designing a water supply of an industrial township, industrial and commercial water demand of total supply, is assumed |
| A. | 10% |
| B. | 10 to 15% |
| C. | 15 to 20% |
| D. | 20 to 25%. |
| Answer» E. | |
| 4702. |
The flow of water gets retarded, in |
| A. | settling tank |
| B. | sedimentation tank |
| C. | clarifer |
| D. | sedimentation basin |
| E. | all the above. |
| Answer» F. | |
| 4703. |
To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36, 00, 000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 Q, the water horse power of the pump is |
| A. | 400 |
| B. | 450 |
| C. | 500 |
| D. | 580 |
| E. | 600 |
| Answer» F. | |
| 4704. |
Most important method for calculating discharge for planning a water supply project, is |
| A. | velocity area method |
| B. | weir or spillway method |
| C. | use of venturi-meter |
| D. | using power plant consumption |
| E. | none of these. |
| Answer» B. weir or spillway method | |
| 4705. |
Cast iron pipes |
| A. | are widely used in city water supplies |
| B. | resist corrosion satisfactorily |
| C. | may last for 100 years |
| D. | are normally manufactured in lengths of about 3.5 m |
| E. | all the above. |
| Answer» F. | |
| 4706. |
In case of Imhoff tanks, |
| A. | the shape is rectangular |
| B. | detention period is 2 hours |
| C. | the velocity of flow is restricted to 0.30 m/minute |
| D. | surface loading is limited to 30, 000 litres/m of plan area per day |
| E. | All the above. |
| Answer» F. | |
| 4707. |
Dry water flow in a combined sewer, is |
| A. | industrial sewage |
| B. | domestic sewage |
| C. | storm water |
| D. | inclusive of domestic and industrial sewage but excludes storm water. |
| Answer» E. | |
| 4708. |
Which one of the following part of human body withstands minimum radiation |
| A. | thyroid |
| B. | kidneys |
| C. | eyes |
| D. | ovaries/testis. |
| Answer» E. | |
| 4709. |
In the activated sludge process |
| A. | aeration is continued till stability |
| B. | aeration is done with an admixture of previously aerated sludge |
| C. | sludge is activated by constant stirring |
| D. | water is removed by centrifugal action. |
| Answer» C. sludge is activated by constant stirring | |
| 4710. |
Which one of the following tests is used for testing sewer pipes : |
| A. | water test |
| B. | ball test |
| C. | mirror test |
| D. | all of these. |
| Answer» E. | |
| 4711. |
The self-cleansing velocity of water flowing through pipe lines, is |
| A. | 2 metres/sec |
| B. | 1 metre/sec |
| C. | 0.5 metre/sec |
| D. | 0.25 metre/sec. |
| Answer» B. 1 metre/sec | |
| 4712. |
Primary treatment of sewage consists of removal of |
| A. | large suspended organic solids |
| B. | oil and grease |
| C. | sand and girt |
| D. | floating materials |
| E. | none of these. |
| Answer» B. oil and grease | |
| 4713. |
The sewerage system consists of |
| A. | house sewer |
| B. | lateral sewer |
| C. | branch sewer |
| D. | main sewer |
| E. | all of these. |
| Answer» F. | |
| 4714. |
The laying of sewers is done with |
| A. | magnetic compass |
| B. | theodolite |
| C. | level |
| D. | clinometer |
| E. | plane table. |
| Answer» D. clinometer | |
| 4715. |
In a trickling filter |
| A. | filtration process is used |
| B. | biological action is used |
| C. | neither (a) nor (b) |
| D. | both (a) and (b). |
| Answer» C. neither (a) nor (b) | |
| 4716. |
The maximum load carried by a pile, when it continues to sink without further increase of load, is known as |
| A. | ultimate load carrying capacity |
| B. | ultimate bearing capacity |
| C. | ultimate bearing resistant |
| D. | all the above. |
| Answer» E. | |
| 4717. |
The liquidity index is defined as a ratio expressed as percentage of |
| A. | plastic limit minus the natural water content, to its plasticity index |
| B. | natural water content minus its plastic limit to its plasticity index |
| C. | natural water content plus its plastic limit to its plasticity index |
| D. | liquid limit minus the natural water content to the plasticity index. |
| Answer» C. natural water content plus its plastic limit to its plasticity index | |
| 4718. |
In a grit chamber of a sewage treatment plant, |
| A. | flow velocity 0.15 m to 0.3 m/sec is kept |
| B. | depth of 0.9 m to 1.20 m is kept |
| C. | one minute of detention period is kept |
| D. | all the above. |
| Answer» E. | |
| 4719. |
The most efficient cross-section of sewers in a combined sewerage system is |
| A. | parabolic |
| B. | circular |
| C. | rectangular |
| D. | new egged. |
| Answer» C. rectangular | |
| 4720. |
Geologic cycle for the formation of soil, is |
| A. | Upheavel transportation deposition weathering |
| B. | Weathering upheaval transportation deposition |
| C. | Transportation upheaval weathering deposition |
| D. | Weathering transportation deposition upheaval |
| E. | None of these. |
| Answer» E. None of these. | |
| 4721. |
A phreatic line is defined as the line within a dam section below which there are |
| A. | positive equipotential lines |
| B. | positive hydrostatic pressure |
| C. | negative hydrostatic pressure |
| D. | negative equipotential lines |
| E. | none of these. |
| Answer» C. negative hydrostatic pressure | |
| 4722. |
Transporting and redepositing soils, is done by |
| A. | water |
| B. | glacier |
| C. | gravity |
| D. | wind |
| E. | all the above. |
| Answer» F. | |
| 4723. |
The minimum centre to centre distance of friction piles of 1 m diameter, is |
| A. | 2 m |
| B. | 2 m to 3 m |
| C. | 3 m to 4 m |
| D. | 5 m |
| Answer» D. 5 m | |
| 4724. |
A soil not fully consolidated under the existing over-burden pressure, is called |
| A. | pre-consolidated |
| B. | normally consolidated |
| C. | under-consolidated |
| D. | none of these. |
| Answer» D. none of these. | |
| 4725. |
Through a point in a loaded soil mass, there exists n typical planes mutually orthogonal on which the stress is wholly normal and no shear stress acts, if n is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 4726. |
The most suitable section of a lined canal, is |
| A. | triangular section with circular bottom for small canals |
| B. | trapezoidal section with rounded corners for large canals |
| C. | rectangular section with rounded corners for large canals |
| D. | both (a) and (b) |
| E. | both (a) and (c) |
| Answer» E. both (a) and (c) | |
| 4727. |
The velocity of drainage water in the barrels of a syphon-aqueduct, is normally limited to |
| A. | 1 to 2 m per second |
| B. | 2 to 3 m per second |
| C. | 3 to 4 m per second |
| D. | 4 to 5 m per second. |
| Answer» C. 3 to 4 m per second | |
| 4728. |
To hold hydraulic jumps, baffle walls are provided in |
| A. | Sarda type falls |
| B. | English type falls |
| C. | Montague type falls |
| D. | Vertical type falls. |
| Answer» C. Montague type falls | |
| 4729. |
According to Lacey, in regime conditions |
| A. | silt is kept in suspension by vertical components of eddies |
| B. | entire cross-section of the channel is generated at all points by the forces normal to the wetted perimeter |
| C. | both (a) and (b) |
| D. | neither (a) nor (b). |
| Answer» D. neither (a) nor (b). | |
| 4730. |
If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is |
| A. | 10 cm |
| B. | 15 cm |
| C. | 20 cm |
| D. | 25 cm |
| E. | 30 cm |
| Answer» E. 30 cm | |
| 4731. |
Process of meandering is due to |
| A. | sediment load of streams |
| B. | discharge and hydraulic properties of streams |
| C. | relative erodibility of the bed and banks |
| D. | all the above. |
| Answer» E. | |
| 4732. |
According to Kennedy, the critical velocity (V0) in metres in a channel is the mean velocity which keeps the channel free from silting or scouring. Its value is given by (where m is critical velocity ratio and D is the depth of the channel). |
| A. | <img src="/_files/images/civil-engineering/irrigation/15-15-32-1.png"> |
| B. | <img src="/_files/images/civil-engineering/irrigation/15-15-32-2.png"> |
| C. | <img src="/_files/images/civil-engineering/irrigation/15-15-32-3.png"> |
| D. | <img src="/_files/images/civil-engineering/irrigation/15-15-32-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/irrigation/15-15-32-3.png"> | |
| 4733. |
In a syphon aqueduct |
| A. | drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough |
| B. | drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough |
| C. | canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough |
| D. | canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough. |
| Answer» D. canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough. | |
| 4734. |
Garnett's diagrams are used for graphical solution of design equations of a canal by |
| A. | Lacey's theory |
| B. | Kennedy's theory |
| C. | Gibb's theory |
| D. | Lindlay theory. |
| Answer» C. Gibb's theory | |
| 4735. |
V and R are the regime mean velocity and hydraulic mean depth respectively in metres. Lacey's silt factor f is |
| A. | <img src="/_files/images/civil-engineering/irrigation/16-15-38-1.png"> |
| B. | <img src="/_files/images/civil-engineering/irrigation/16-15-38-2.png"> |
| C. | <img src="/_files/images/civil-engineering/irrigation/16-15-38-3.png"> |
| D. | <img src="/_files/images/civil-engineering/irrigation/16-15-38-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/irrigation/16-15-38-4.png"> | |
| 4736. |
A current meter measures the velocity of flow, if it is held |
| A. | on the surface of water |
| B. | at the bottom of channel |
| C. | at any point within the cross-section |
| D. | none of these. |
| Answer» D. none of these. | |
| 4737. |
The width of a dowla is generally kept between 30 to 60 cm and its height above the road level should invariably be more than |
| A. | 10 cm |
| B. | 20 cm |
| C. | 30 cm |
| D. | 40 cm |
| Answer» D. 40 cm | |
| 4738. |
Disposal of extra excavated earth of canals, is utilised to provide a spoil bank on |
| A. | left side |
| B. | right side |
| C. | both sides |
| D. | all the above. |
| Answer» E. | |
| 4739. |
The field capacity of a soil depends upon |
| A. | capillary tension in soil |
| B. | porosity of soil |
| C. | both (a) and (b) |
| D. | neither (a) nor (b). |
| Answer» D. neither (a) nor (b). | |
| 4740. |
Finally formed berms in canals are provided for |
| A. | protection of banks erosion by the waves |
| B. | control of seepage losses |
| C. | strengthening of banks |
| D. | all the above. |
| Answer» E. | |
| 4741. |
Effective precipitation for a crop may be defined as |
| A. | total precipitation minus the loss due to evaporation |
| B. | total precipitation minus the loss due to infiltration |
| C. | total precipitation during the crop period |
| D. | available water stored in soil within root zone of the crop. |
| Answer» E. | |
| 4742. |
Lane's weighted creep theory assumes |
| A. | equal weightage to horizontal and vertical creeps |
| B. | double weightage to horizontal creep and one weightage to vertical creep |
| C. | triple weightage to horizontal creep and one weightage to vertical creep |
| D. | triple weightage to vertical creep and one weightage to horizontal creep |
| E. | double weightage to vertical creep and one weightage to horizontal creep. |
| Answer» E. double weightage to vertical creep and one weightage to horizontal creep. | |
| 4743. |
Sedimentation analysis is based on the assumption: |
| A. | soil particles are spherical |
| B. | particles settle independent of other particles |
| C. | walls of the jar do not affect the settlement . |
| D. | all the above. |
| Answer» E. | |
| 4744. |
A failure wedge develops if a retaining wall |
| A. | moves away from the backfill |
| B. | moves towards the backfill |
| C. | sinks downwards |
| D. | stresses equally by vertical and horizontal forces. |
| Answer» B. moves towards the backfill | |
| 4745. |
For determining the ultimate bearing capacity of soil, the recommended size of a square bearing plate to be used in load plate test should be 30 to 75 cm square with a minimum thickness of |
| A. | 5 mm |
| B. | 10 mm |
| C. | 15 mm |
| D. | 20 mm |
| E. | 25 mm |
| Answer» F. | |
| 4746. |
The water content in a soil sample when it continues to loose weight without loosing the volume, is called |
| A. | Shrinkage limit |
| B. | Plastic limit |
| C. | liquid limit |
| D. | semi-solid limit. |
| Answer» B. Plastic limit | |
| 4747. |
The intensity of vertical pressure at a depth Z directly below the point load Q on its axis of loading is : |
| A. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/48-11-248-1.png"> |
| B. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/48-11-248-2.png"> |
| C. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/48-11-248-3.png"> |
| D. | <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/48-11-248-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/soil-mechanics-and-foundation-engineering/48-11-248-3.png"> | |
| 4748. |
For general engineering purposes, soils are classified by |
| A. | particle size classification system |
| B. | textural classification system |
| C. | High Way Research Board (HRB), classification system |
| D. | unified soil classification system. |
| Answer» E. | |
| 4749. |
If there is no impervious boundary at the bottom of a hydraulic structure, stream lines tend to follow : |
| A. | a straight line |
| B. | a parabola |
| C. | a semi-ellipse |
| D. | a semi-circle. |
| Answer» D. a semi-circle. | |
| 4750. |
The change of moisture content of soils, changes the |
| A. | value of the angle of repose |
| B. | amount of compaction required |
| C. | cohesive strength of soil |
| D. | all the above. |
| Answer» E. | |