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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.
| 3701. |
For a most economical rectangular channel, the width of the channel must be |
| A. | equal to depth of flow |
| B. | twice the depth of flow |
| C. | half the depth of flow |
| D. | None of these. |
| Answer» C. half the depth of flow | |
| 3702. |
Gauge pressure is |
| A. | absolute pressure - atmospheric pressure |
| B. | absolute pressure + atmospheric pressure |
| C. | atmospheric pressure - absolute pressure |
| D. | none of these. |
| Answer» B. absolute pressure + atmospheric pressure | |
| 3703. |
When a liquid rotates at constant angular velocity about a vertical axis of a rigid body, the pressure |
| A. | increases linearly to its radial distance |
| B. | varies inversely as the altitude along any vertical line |
| C. | varies as the square of the radial distance |
| D. | decreases as the square of the radial distance |
| E. | none of these. |
| Answer» D. decreases as the square of the radial distance | |
| 3704. |
A floating body attains stable equilibrium if its metacentre is |
| A. | at the centroid |
| B. | above the centroid |
| C. | below the centroid |
| D. | anywhere. |
| Answer» C. below the centroid | |
| 3705. |
Hydraulic ram is a device |
| A. | for lifting water without an electric motor |
| B. | for accelerating water flow |
| C. | for lifting heavy loads |
| D. | none of these. |
| Answer» B. for accelerating water flow | |
| 3706. |
The mouth piece shown in the below figure is generally known as |
| A. | Internal mouth piece |
| B. | Re-entrant mouth piece |
| C. | Borda's mouth piece |
| D. | All the above. |
| Answer» E. | |
| 3707. |
If S is the length of the crest, H is the height of water source of a weir whose length is L and discharge is Q m3/sec, the velocity of approach Vd is |
| A. | <span class="root">2<i>gH</i></span> |
| B. | <img src="/_files/images/civil-engineering/hydraulics/152-7.141-1.png"> |
| C. | <img src="/_files/images/civil-engineering/hydraulics/152-7.141-2.png"> |
| D. | <img src="/_files/images/civil-engineering/hydraulics/152-7.141-3.png"> |
| E. | none of these. |
| Answer» D. <img src="/_files/images/civil-engineering/hydraulics/152-7.141-3.png"> | |
| 3708. |
For the two dimensional flow, the stream function is given by = 2xy. The velocity at a point (3, 4) is |
| A. | 6 m/sec |
| B. | 8 m/sec |
| C. | 10 m/sec |
| D. | 12 m/sec |
| E. | 15 m/sec. |
| Answer» D. 12 m/sec | |
| 3709. |
The ratio of the percentagge error in the discharge and percentage error in the measurement of head over a triangular notch, is |
| A. | 2/3 |
| B. | 3/2 |
| C. | 2/5 |
| D. | 5/2 |
| Answer» E. | |
| 3710. |
Non-over flow double curvature concrete arch, is provided in |
| A. | Bhakra dam |
| B. | Hirakund dam |
| C. | Nagarjuna Sagar dam |
| D. | Idukki dam. |
| Answer» E. | |
| 3711. |
Liquids |
| A. | cannot be compressed |
| B. | do not occupy definite shape |
| C. | are not affected by change in pressure and temperature |
| D. | none of these. |
| Answer» C. are not affected by change in pressure and temperature | |
| 3712. |
For maximum horse power of a nozzle, the head supplied must be equal to |
| A. | head loss in the pipe due to friction |
| B. | twice the head loss in the pipe due to friction |
| C. | thrice the head loss in the pipe due to friction |
| D. | four times the head loss in the pipe due to friction. |
| Answer» D. four times the head loss in the pipe due to friction. | |
| 3713. |
The ratio of frictional factor and coefficient of friction used in general equation for a head loss in a pipe, is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 3714. |
Uniform flow is said to occur when |
| A. | size and shape of the cross-section in a particular length remain constant |
| B. | size and shape of the cross-section change along a length |
| C. | frictional loss in the particular length of the channel will the more than the drop in its elevation |
| D. | frictional loss in the particular length of the channel, will be less than the drop in elevation. |
| Answer» B. size and shape of the cross-section change along a length | |
| 3715. |
Flow in pipes is turbulent if Reynold number is |
| A. | less than 2100 |
| B. | more than 3000 |
| C. | between 2100 and 3000 |
| D. | none of these. |
| Answer» C. between 2100 and 3000 | |
| 3716. |
To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» D. 5 | |
| 3717. |
A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m3) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is |
| A. | 459 kg |
| B. | 549 kg |
| C. | 945 kg |
| D. | 954 kg |
| E. | 95.4 kg. |
| Answer» E. 95.4 kg. | |
| 3718. |
When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe |
| A. | increases the discharge |
| B. | decreases the discharge |
| C. | does not effect the discharge |
| D. | none of these. |
| Answer» B. decreases the discharge | |
| 3719. |
A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the vertical reaction at A is |
| A. | 14,137 kgf |
| B. | 5,863 kgf |
| C. | 20,000 kgf |
| D. | 18,000 kgf. |
| Answer» C. 20,000 kgf | |
| 3720. |
From a nozzle exposed to atmosphere, the liquid jet traverses |
| A. | a straight line |
| B. | a circular path |
| C. | an elliptical path |
| D. | a parabolic path. |
| Answer» E. | |
| 3721. |
The velocity of the fluid particle at the centre of the pipe section, is |
| A. | minimum |
| B. | maximum |
| C. | equal throughout |
| D. | none of these. |
| Answer» C. equal throughout | |
| 3722. |
Barometres are used to measure |
| A. | pressure in water channels, pipes etc. |
| B. | difference in pressure at two points |
| C. | atmospheric pressure |
| D. | very low pressure |
| E. | very high pressure. |
| Answer» D. very low pressure | |
| 3723. |
In order to avoid capillary correction, the minimum diameter of a manometer used for measuring pressure, should be |
| A. | 2 mm |
| B. | 4 mm |
| C. | 6 mm |
| D. | 8 mm |
| E. | 10 mm. |
| Answer» D. 8 mm | |
| 3724. |
The bending moment is maximum on a section where shearing force |
| A. | is maximum |
| B. | is minimum |
| C. | is equal |
| D. | changes sign. |
| Answer» E. | |
| 3725. |
A short masonry pillar is 60 cm x 60 cm in cross-section, the core of the pillar is a square whose side is |
| A. | 17.32 cm |
| B. | 14.14 cm |
| C. | 20.00 cm |
| D. | 22.36 cm |
| E. | 25.22 cm. |
| Answer» C. 20.00 cm | |
| 3726. |
Due to decrease of diameter of the droplet, inside pressure intensity |
| A. | increases |
| B. | decreases |
| C. | remains unaffected |
| D. | None of these. |
| Answer» B. decreases | |
| 3727. |
The stress necessary to initiate yielding, is considerably |
| A. | more than that necessary to continue it |
| B. | less than that necessary to continue it |
| C. | more than that necessary to stop it |
| D. | less than that necessary to stop it. |
| Answer» B. less than that necessary to continue it | |
| 3728. |
Strain energy of any member may be defined as work done on it |
| A. | to deform it |
| B. | to resist elongation |
| C. | to resist shortening |
| D. | all the above. |
| Answer» E. | |
| 3729. |
If a circular beam of diameter d experiences a longitudinal strain and a lateral strain the volumetric strain is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/136-6.172-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/136-6.172-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/136-6.172-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/136-6.172-4.png"> |
| E. | none of these. |
| Answer» C. <img src="/_files/images/civil-engineering/strength-of-materials/136-6.172-3.png"> | |
| 3730. |
The maximum resistance against rotation, is offered by the weld at a point |
| A. | most distant |
| B. | least distant |
| C. | at either end |
| D. | centrally located. |
| Answer» B. least distant | |
| 3731. |
The B.M. of a cantilever beam shown in below figure at A, is |
| A. | zero |
| B. | 8 Tm |
| C. | 12 Tm |
| D. | 20 Tm. |
| Answer» B. 8 Tm | |
| 3732. |
If a member carries a tensile force P on its area of cross-section A, the normal stress introduced on an inclined plane making an angle with its transverse plane, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/135-6.168-1.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/135-6.168-2.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.36-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/strength-of-materials/135-6.168-1.png"> | |
| 3733. |
The reaction at the supports will be vertical to the plane of the support if the frame structure rests on |
| A. | roller supports |
| B. | free supports |
| C. | hinged supports |
| D. | all the above. |
| Answer» E. | |
| 3734. |
A simply supported beam of span L carries a uniformly distributed load W. The maximum bending moment M is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-4.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-5.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-4.png"> | |
| 3735. |
A cantilever beam rectangular in cross-section is subjected to an isolated load at its free end. If the width of the beam is doubled, the deflection of the free end will be changed in the ratio of |
| A. | 8 |
| B. | 1/8 |
| C. | 1/2 |
| D. | 2 |
| E. | 3 |
| Answer» D. 2 | |
| 3736. |
The phenomenon of slow extension of materials having constant load, i.e. increasing with the time is called |
| A. | creeping |
| B. | yielding |
| C. | breaking |
| D. | none of these. |
| Answer» B. yielding | |
| 3737. |
The direction of the reaction at support B of a truss shown in below figure will be |
| A. | East of North |
| B. | West of North |
| C. | East of South |
| D. | West of South |
| E. | Vertical. |
| Answer» B. West of North | |
| 3738. |
The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximum crippling load will be |
| A. | 1.288 tonnes |
| B. | 12.88 |
| C. | 128.8 tonnes |
| D. | 288.0 |
| E. | none of these. |
| Answer» C. 128.8 tonnes | |
| 3739. |
If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists. |
| A. | compressive force |
| B. | tensile force |
| C. | shear force |
| D. | bending moment. |
| Answer» B. tensile force | |
| 3740. |
In a three hinged arch, the shear force is usually |
| A. | maximum at crown |
| B. | maximum at springings |
| C. | maximum at quarter points |
| D. | varies with slope. |
| Answer» C. maximum at quarter points | |
| 3741. |
An arch may be subjected to |
| A. | shear and axial force |
| B. | bending moment and shear force |
| C. | bending moment and axial force |
| D. | shear force and thrust |
| E. | thrust, shear force and bending moment. |
| Answer» F. | |
| 3742. |
In a simply supported beam L with a triangular load W varying from zero at one end to the maximum value at the other end, the maximum bending moment is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.46-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/127-6.58-1.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-2.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/127-6.58-2.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-3.png"> |
| Answer» E. <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-3.png"> | |
| 3743. |
The law which states, "within elastic limits strain produced is proportional to the stress producing it", is known as |
| A. | Bernoulli's law |
| B. | Stress law |
| C. | Hooke's law |
| D. | Poisson's law |
| E. | none of these. |
| Answer» D. Poisson's law | |
| 3744. |
Maximum deflection of a cantilever due to pure bending moment M at its free end, is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.74-1.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.74-2.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.74-3.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.74-4.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/128-6.74-5.png"> |
| Answer» E. <img src="/_files/images/civil-engineering/strength-of-materials/128-6.74-5.png"> | |
| 3745. |
Along the principal plan subjected to maximum principal stress |
| A. | maximum shear stress acts |
| B. | minimum shear stress acts |
| C. | no shear stress acts |
| D. | none of these. |
| Answer» D. none of these. | |
| 3746. |
A diagram which shows the variations of the axial load for all sections of the span of a beam, is called |
| A. | bending moment diagram |
| B. | shear force diagram |
| C. | thrust diagram |
| D. | stress diagram |
| E. | none of these. |
| Answer» D. stress diagram | |
| 3747. |
At either end of a plane frame, maximum number of possible bending moments, are |
| A. | one |
| B. | two |
| C. | three |
| D. | four |
| E. | zero. |
| Answer» F. | |
| 3748. |
During a tensile test on a ductile material |
| A. | nominal stress at fracture is higher than the ultimate stress |
| B. | true stress at fracture is higher than the ultimate stress |
| C. | true stress at fracture is the same as the ultimate stress |
| D. | none of these. |
| Answer» C. true stress at fracture is the same as the ultimate stress | |
| 3749. |
For a simply supported beam carrying uniformly distributed load W on it entire length L, the maximum bending moment is |
| A. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-2.png"> |
| B. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-3.png"> |
| C. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-1.png"> |
| D. | <img src="/_files/images/civil-engineering/strength-of-materials/126-6.46-1.png"> |
| E. | <img src="/_files/images/civil-engineering/strength-of-materials/125-6.53-1.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/strength-of-materials/126-6.44-1.png"> | |
| 3750. |
Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to |
| A. | very long columns |
| B. | long columns |
| C. | short columns |
| D. | intermediate columns |
| E. | all the above. |
| Answer» E. all the above. | |