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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.
| 651. |
Sunlight |
| A. | helps growth of bacterias |
| B. | impedes growth of algae |
| C. | increases dissolved oxygen content |
| D. | reduces turbidity. |
| Answer» C. increases dissolved oxygen content | |
| 652. |
Asbestos pipes are |
| A. | light in weight and easy to transport |
| B. | highly resistant to corrosion |
| C. | high flexible to accommodate deflection upto 12 |
| D. | very much smooth and hydraulically efficient |
| E. | all the above. |
| Answer» F. | |
| 653. |
By boiling water, hardness can be removed if it is due to |
| A. | calcium sulphate |
| B. | magnesium sulphate |
| C. | calcium nitrate |
| D. | calcium bicarbonate |
| E. | none of these. |
| Answer» E. none of these. | |
| 654. |
Q is the discharge from an unconfined tube well with depression head s through its pipe of radius rw. If the radius of influence is R, the length of the required strainer, is |
| A. | <img src="/_files/images/civil-engineering/water-supply-engineering/208-10.85-1.png"> |
| B. | <img src="/_files/images/civil-engineering/water-supply-engineering/208-10.85-2.png"> |
| C. | <img src="/_files/images/civil-engineering/water-supply-engineering/208-10.85-3.png"> |
| D. | <img src="/_files/images/civil-engineering/water-supply-engineering/208-10.85-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/water-supply-engineering/208-10.85-4.png"> | |
| 655. |
The maximum depth of sedimentation tanks is limited to |
| A. | 2 m |
| B. | 3 m |
| C. | 4 m |
| D. | 5 m |
| E. | 6 m. |
| Answer» F. | |
| 656. |
For determining the velocity of flow of underground water, the most commonly used non-empirical formula is |
| A. | Darcy's formula |
| B. | Slichter's formula |
| C. | Hazen's formula |
| D. | Lacy's formula. |
| Answer» B. Slichter's formula | |
| 657. |
Manholes along the mains from the source to a city are provided at 500 m intervals in |
| A. | steel pipes |
| B. | R.C.C. pipes |
| C. | hume steel pipes |
| D. | all the above. |
| Answer» E. | |
| 658. |
If V is total consumption of water in litres for a population of N individuals, per capita consumption or water allowance for the water supply Q, is given by |
| A. | <img src="/_files/images/civil-engineering/water-supply-engineering/217-10.206-1.png"> |
| B. | <img src="/_files/images/civil-engineering/water-supply-engineering/217-10.206-2.png"> |
| C. | <img src="/_files/images/civil-engineering/water-supply-engineering/217-10.206-3u.png"> |
| D. | none of these. |
| Answer» D. none of these. | |
| 659. |
Water supply includes |
| A. | collection, transportation and treatment of water |
| B. | distribution of water to consumers |
| C. | provision of hydrants for fire fighting |
| D. | mains, sub-mains and branch lines of water supply |
| E. | all the above. |
| Answer» F. | |
| 660. |
The maximum permissible nitrites in public water supplies, is |
| A. | Nil |
| B. | 0.5 P.P.M. |
| C. | 1.0. P.P.M. |
| D. | 1.5 P.P.M. |
| E. | 200 P.P.M. |
| Answer» B. 0.5 P.P.M. | |
| 661. |
A high velocity of wash water is required for |
| A. | rapid gravity filter with strainers |
| B. | rapid gravity filter without strainers |
| C. | slow sand filter with strainers |
| D. | slow sand filter without strainers |
| E. | none of these. |
| Answer» C. slow sand filter with strainers | |
| 662. |
In distribution pipes, drain valves are provided at |
| A. | lower point |
| B. | higher point |
| C. | junction points |
| D. | any where. |
| Answer» B. higher point | |
| 663. |
P0, P1, P2 be the populations of a city at times t0, t1 and t2 = 2t1, the saturation value of the population Ps of the city, is |
| A. | <img src="/_files/images/civil-engineering/water-supply-engineering/204-10.30-1.png"> |
| B. | <img src="/_files/images/civil-engineering/water-supply-engineering/204-10.30-2.png"> |
| C. | <img src="/_files/images/civil-engineering/water-supply-engineering/204-10.30-3.png"> |
| D. | <img src="/_files/images/civil-engineering/water-supply-engineering/204-10.30-4.png"> |
| E. | None of these. |
| Answer» B. <img src="/_files/images/civil-engineering/water-supply-engineering/204-10.30-2.png"> | |
| 664. |
Water supply system includes |
| A. | digging a well for water |
| B. | construction of dams |
| C. | construction of canals |
| D. | entire arrangement from source to distribution. |
| Answer» E. | |
| 665. |
Corrosion of a pipe |
| A. | reduces its life span |
| B. | reduces its carrying capacity |
| C. | adds colour to water |
| D. | adds odour to water |
| E. | all the above. |
| Answer» F. | |
| 666. |
The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is |
| A. | 2 m |
| B. | 2.25 m |
| C. | 2.50 m |
| D. | 2.75 m |
| E. | 3.00 m. |
| Answer» F. | |
| 667. |
Average annual rainfall at any station is the average of annual rainfall over a period of |
| A. | 7 years |
| B. | 14 years |
| C. | 21 years |
| D. | 28 years |
| E. | 35 years. |
| Answer» F. | |
| 668. |
Time of concentration |
| A. | is the time taken, for precipitation |
| B. | duration of rainfall. |
| C. | time taken for all the ran off to reach the drain |
| D. | time taken for the storm water to travel from the most remote point to the drain. |
| Answer» E. | |
| 669. |
In India, rain fall is generally recorded at |
| A. | 8 A.M. |
| B. | 12 Noon |
| C. | 4 P.M. |
| D. | 8 P.M. |
| Answer» B. 12 Noon | |
| 670. |
In India the recording type rain gauge generally used, is |
| A. | weighing type |
| B. | tipping type |
| C. | float recording type |
| D. | none of these. |
| Answer» D. none of these. | |
| 671. |
The main factor which affects the infiltration capacity, is |
| A. | thickness of saturated layer |
| B. | depth of surface detention |
| C. | soil moisture |
| D. | all the above. |
| Answer» E. | |
| 672. |
Absolute humidity in air |
| A. | decreases at higher altitudes |
| B. | increases at higher altitudes |
| C. | remains constant at all altitudes |
| D. | none of these. |
| Answer» B. increases at higher altitudes | |
| 673. |
For the estimate of high floods in fan-shaped catchment, the formula used is |
| A. | Dicken's formula |
| B. | Ryve's formula |
| C. | Inglis formula |
| D. | none of these. |
| Answer» D. none of these. | |
| 674. |
Burge formula cumecs is based upon |
| A. | rainfall and drainage area |
| B. | run off and drainage area |
| C. | drainage area and its shape |
| D. | drainage area. |
| Answer» D. drainage area. | |
| 675. |
If the viscosity of ground water is 1.00, the Slitcher's constant is 400, the effective size of soil particles in acquifer is 0.5 mm and hydraulic gradient is 1 in 80, the velocity of flow is |
| A. | 0.25 m/day |
| B. | 0.50 m/day |
| C. | 0.75 m/day |
| D. | 1.00 m/day |
| E. | 1.25 m/day. |
| Answer» F. | |
| 676. |
A closely coiled helical spring of radius R, contains n turns and is subjected to an axial load W. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the stress developed in the helical spring is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.212-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.212-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.212-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/140-6.212-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/strength-of-materials/140-6.212-3.png"> | |
| 677. |
If the shear force along a section of a beam is zero, the bending moment at the section is |
| A. | zero |
| B. | maximum |
| C. | minimum |
| D. | average of maximum-minimum |
| E. | none of these. |
| Answer» C. minimum | |
| 678. |
The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/56-3.94-2.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/56-3.94-1.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/56-3.94-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/56-3.94-4.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/124-6.16-1.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/strength-of-materials/56-3.94-3.png"> | |
| 679. |
For calculating the evaporation rate over a reservoir surface E = 0.771 (1.465 - 0.00732 B) (0.44 - 0.007375 V) (pe - pa), the equation is given by |
| A. | Roohwer's, formula in M.K.S. |
| B. | Roohwer's formula in F.P.S. |
| C. | Dalton's formula in F.P.S. |
| D. | Dalton's formula in M.K.S. |
| Answer» B. Roohwer's formula in F.P.S. | |
| 680. |
The shape of the bending moment diagram over the length of a beam, having no external load, is always |
| A. | linear |
| B. | parabolic |
| C. | cubical |
| D. | circular. |
| Answer» B. parabolic | |
| 681. |
A three-hinged arch is said to be : |
| A. | statically determinate structure |
| B. | statically indeterminate structure |
| C. | a bent beam |
| D. | none of these. |
| Answer» B. statically indeterminate structure | |
| 682. |
The deflection due to couple M at the free end of a cantilever length L is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-4.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-4.png"> | |
| 683. |
A reinforced concrete beam is assumed to be made of |
| A. | homogeneous material |
| B. | heterogeneous material |
| C. | isotropic material |
| D. | none of these. |
| Answer» C. isotropic material | |
| 684. |
If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called |
| A. | chain riveting |
| B. | zig-zag riveting |
| C. | diamond riveting |
| D. | none of these. |
| Answer» D. none of these. | |
| 685. |
The energy stored in a beam of length L subjected to a constant B.M. is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-4.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-3.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.226-1.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/141-6.226-2.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/strength-of-materials/141-6.225-3.png"> | |
| 686. |
When loads are applied proportionately to a frame structure containing its members in one plane, the structure is called |
| A. | grid frame |
| B. | plane frame |
| C. | space frame |
| D. | truss frame. |
| Answer» C. space frame | |
| 687. |
The region of the cross-section of a column in which compressive load may be applied without producing any tensile stress, is known as the core of the cross-section. In circular columns the radius of the core, is |
| A. | one-half of the radius |
| B. | one-third of the radius |
| C. | one-quarter of the radius |
| D. | one-fifth of the radius |
| E. | one-sixth of the radius. |
| Answer» D. one-fifth of the radius | |
| 688. |
The radius of gyration of a rectangular section is not proportional to |
| A. | square root of the moment of inertia |
| B. | square root of the inverse of the area |
| C. | square root of the moment of inertia divided by area of the section |
| D. | none of these. |
| Answer» E. | |
| 689. |
In a loaded beam, the point of con-traflexture occurs at a section where |
| A. | bending moment is minimum |
| B. | bending moment is zero or changes sign |
| C. | bending moment is maximum |
| D. | shearing force is maximum |
| E. | shearing force is minimum. |
| Answer» C. bending moment is maximum | |
| 690. |
The weakest section of a diamond riveting, is the section which passes through |
| A. | first row |
| B. | second row |
| C. | central raw |
| D. | one rivet hole of end row. |
| Answer» B. second row | |
| 691. |
Latitude of a place is the angular distance from |
| A. | Greenwich to the place |
| B. | equator to the poles |
| C. | equator to the nearer pole |
| D. | equator to the nearer pole along the meridian of the place |
| E. | none of these. |
| Answer» F. | |
| 692. |
International date line is located along |
| A. | standard meridian |
| B. | Greenwich meridian |
| C. | equator |
| D. | 180 longitude |
| E. | none of these. |
| Answer» E. none of these. | |
| 693. |
In case of Raymond pile |
| A. | lengths vary from 6 m to 12 m |
| B. | diameter of top of piles varies from 40 cm to 60 cm |
| C. | diameter of pile at bottom varies from 20 cm to 28 cm |
| D. | thickness of outer shell depends upon pile diameter |
| E. | all the above. |
| Answer» F. | |
| 694. |
The point on the celestial sphere vertically below the observer's position, is called |
| A. | zenith |
| B. | celestial point |
| C. | nadir |
| D. | pole. |
| Answer» D. pole. | |
| 695. |
The parallax equation is applicable to entire overlap of the photographs only if parallax is measured |
| A. | normal to base line |
| B. | parallel to base line |
| C. | both (a) and (b) |
| D. | neither (a) nor (b). |
| Answer» C. both (a) and (b) | |
| 696. |
Dado is usually provided in |
| A. | dinning halls |
| B. | bath rooms |
| C. | living rooms |
| D. | verandah |
| E. | roofs. |
| Answer» C. living rooms | |
| 697. |
Queen closer may be placed |
| A. | in header course |
| B. | in stretcher course |
| C. | in header course next to first brick |
| D. | in stretcher course next to first brick |
| E. | in any position. |
| Answer» D. in stretcher course next to first brick | |
| 698. |
The foundation in which a cantilever beam is provided to join two footings, is known as |
| A. | strip footing |
| B. | strap footing |
| C. | combined footing |
| D. | raft footing |
| E. | none of these. |
| Answer» C. combined footing | |
| 699. |
For quality control of Portland cement, the test essentially done is |
| A. | setting time |
| B. | soundness |
| C. | tensile strength |
| D. | consistency |
| E. | all the above. |
| Answer» F. | |
| 700. |
If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is, |
| A. | 20% |
| B. | 25% |
| C. | 30% |
| D. | 35% |
| E. | 40% |
| Answer» C. 30% | |