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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.
| 3601. |
Factor of safety is the ratio of |
| A. | yield stress to working stress |
| B. | tensile stress to working stress |
| C. | compressive stress to working stress |
| D. | bearing stress to working stress |
| E. | bearing stress to yield stress. |
| Answer» B. tensile stress to working stress | |
| 3602. |
For steel members not exposed to weather, the thickness of steel should not be less than |
| A. | 4.5 mm |
| B. | 6 mm |
| C. | 8 mm |
| D. | 10 mm |
| Answer» C. 8 mm | |
| 3603. |
An axial loaded column is supported on a slab base whose projection is 8 cm. If the intensity of pressure from concrete is 40 kg/cm2 and allowable bending stress in slab base is 1890 kg/cm2, the thickness (t) of the slab base, is |
| A. | <img src="/_files/images/civil-engineering/steel-structure-design/99-14-90-1.png"> |
| B. | <img src="/_files/images/civil-engineering/steel-structure-design/99-14-90-2.png"> |
| C. | <img src="/_files/images/civil-engineering/steel-structure-design/99-14-90-3.png"> |
| D. | <img src="/_files/images/civil-engineering/steel-structure-design/99-14-90-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/steel-structure-design/99-14-90-3.png"> | |
| 3604. |
If P is the load applied to a bracket with an eccentricity e, the resisting moment F exerted by a rivet at a distance rn from the centre of gravity, is |
| A. | <img src="/_files/images/civil-engineering/steel-structure-design/95-14-43-1.png"> |
| B. | <img src="/_files/images/civil-engineering/steel-structure-design/95-14-43-2.png"> |
| C. | <img src="/_files/images/civil-engineering/steel-structure-design/95-14-43-3.png"> |
| D. | <img src="/_files/images/civil-engineering/steel-structure-design/95-14-43-4.png"> |
| E. | <img src="/_files/images/civil-engineering/steel-structure-design/95-14-43-5.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/steel-structure-design/95-14-43-3.png"> | |
| 3605. |
The effective length of a weld, is taken as the actual length |
| A. | minus the size of weld |
| B. | minus twice the size of weld |
| C. | plus the size of weld |
| D. | plus twice the size of weld |
| E. | none of these. |
| Answer» C. plus the size of weld | |
| 3606. |
In a fillet weld placed on the sides of the base, the metal experiences |
| A. | shear |
| B. | tension |
| C. | compression |
| D. | bending |
| E. | all the above. |
| Answer» F. | |
| 3607. |
The Indian standard code which deals with steel structures, is |
| A. | IS : 875 |
| B. | IS : 800 |
| C. | IS : 456 |
| D. | IS : 1893 |
| Answer» C. IS : 456 | |
| 3608. |
When two plates are placed end to end and are joined by two cover plates, the joint is known as |
| A. | lap joint |
| B. | butt joint |
| C. | chain riveted lap joint |
| D. | zig-zag riveted lap joint |
| E. | double cover butt joint. |
| Answer» F. | |
| 3609. |
If the slenderness ratio is greater than 160, the allowable stress in axial compression is multiplied by a factor (1.2 - (l/xy) where x is |
| A. | 200 |
| B. | 400 |
| C. | 600 |
| D. | 800 |
| E. | 1000 |
| Answer» E. 1000 | |
| 3610. |
The rivets which are heated and then driven in the field, are known |
| A. | power driven shop rivets |
| B. | power driven field rivets |
| C. | hand driven rivets |
| D. | cold driven rivets |
| E. | field rivets. |
| Answer» C. hand driven rivets | |
| 3611. |
The strength of a riveted lap joint is equal to its |
| A. | shearing strength |
| B. | bearing strength |
| C. | tearing strength |
| D. | least of (a), (b) and (c) |
| E. | greatest of (a) (b) and (c). |
| Answer» E. greatest of (a) (b) and (c). | |
| 3612. |
The slenderness ratio of a column is zero when its length |
| A. | is zero |
| B. | is equal to its radius of gyration |
| C. | is supported on all sides throughout its length |
| D. | is between the points of zero moments. |
| Answer» D. is between the points of zero moments. | |
| 3613. |
If f is the maximum allowable bending stress in a tension member whose radius of gyration is r and depth is 2y, the required cross sectional area A is given by |
| A. | <img src="/_files/images/civil-engineering/steel-structure-design/102-14-115-1.png"> |
| B. | <img src="/_files/images/civil-engineering/steel-structure-design/102-14-115-2.png"> |
| C. | <img src="/_files/images/civil-engineering/steel-structure-design/102-14-115-3.png"> |
| D. | <img src="/_files/images/civil-engineering/steel-structure-design/102-14-115-4.png"> |
| E. | <img src="/_files/images/civil-engineering/steel-structure-design/102-14-115-5.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/steel-structure-design/102-14-115-2.png"> | |
| 3614. |
A column splice is used to increase |
| A. | length of the column |
| B. | strength of the column |
| C. | cross-sectional area of the column |
| D. | none of these. |
| Answer» B. strength of the column | |
| 3615. |
The height of water level in a tank above the centre of a circular hole 2.5 cm in diameter is 50 m. The velocity of water flowing through the hole, is |
| A. | 31.1 m/sec |
| B. | 31.2 m/sec |
| C. | 31.3 m/sec |
| D. | 31.4 m/sec. |
| Answer» D. 31.4 m/sec. | |
| 3616. |
In pipe lines, a surge tank is provided |
| A. | to relieve the pressure due to water hammer |
| B. | to provide additional water head |
| C. | to overflow the pipe line when suddenly closed |
| D. | to remove the frictional loss in pipe. |
| Answer» B. to provide additional water head | |
| 3617. |
Total head of a liquid particle in motion is the sum of |
| A. | potential head and kinetic head |
| B. | kinetic head and pressure head |
| C. | potential head and pressure head |
| D. | potential head, kinetic head and pressure head. |
| Answer» E. | |
| 3618. |
The velocity distribution of viscous fluid through a circular/pipe is : |
| A. | hyperbolic |
| B. | circular |
| C. | parabolic |
| D. | elliptical. |
| Answer» D. elliptical. | |
| 3619. |
If u, v, w are the components of the velocity v of a moving particle, the equation represents |
| A. | one diamensional flow |
| B. | two dimensional flow |
| C. | three dimensional flow |
| D. | none of these. |
| Answer» D. none of these. | |
| 3620. |
Mercury is generally used in barometers because |
| A. | its vaour pressure is practically zero |
| B. | the height of the barometer will be less |
| C. | it is a best liquid |
| D. | both (a) and (b) above |
| E. | both (b) and (c) above. |
| Answer» E. both (b) and (c) above. | |
| 3621. |
A tension member, if subjected to possible reversal of stress due to wind, the slenderness ratio of the member should not exceed |
| A. | 180 |
| B. | 200 |
| C. | 250 |
| D. | 300 |
| E. | 350 |
| Answer» F. | |
| 3622. |
The main assumption of Bernoulli's equation is : |
| A. | The velocity of energy of liquid particle, across any cross-section of a pipe is uniform |
| B. | No external force except the gravity acts on the liquid |
| C. | There is no loss of energy of the liquid while flowing |
| D. | All the above. |
| Answer» E. | |
| 3623. |
Discharge over an ogee weir remains the same as that of |
| A. | sharp crested weir |
| B. | triangular weir |
| C. | cippoletti weir |
| D. | drowned weir. |
| Answer» D. drowned weir. | |
| 3624. |
When no air is left below the nappe and water stream adheres to the down stream face of the weir, it is known as |
| A. | free nappe |
| B. | depressed nappe |
| C. | clinging nappe |
| D. | none of these. |
| Answer» D. none of these. | |
| 3625. |
The best side slope for most economical trapezoidal section, is |
| A. | 30 |
| B. | 45 |
| C. | 60 |
| D. | None of these. |
| Answer» D. None of these. | |
| 3626. |
The following is not a laminar flow |
| A. | Flow of oil in measuring instruments |
| B. | Flow in beds in ground water |
| C. | Rise of water in plants through roots |
| D. | Flow of blood in the arteries of human body |
| E. | Flow in water pipe lines. |
| Answer» F. | |
| 3627. |
Kinematic viscosity of liquids by equation is determined by : |
| A. | Redwood viscometer |
| B. | Engler viscometer |
| C. | Saybolt universal viscometer |
| D. | None of these. |
| Answer» D. None of these. | |
| 3628. |
The magnitude of water hammer in a pipe depends upon |
| A. | speed at which value is closed |
| B. | length of the pipe line |
| C. | elastic properties of the pipe material |
| D. | elastic properties of the following liquid |
| E. | all the above. |
| Answer» F. | |
| 3629. |
Atmospheric pressure varies with |
| A. | altitude |
| B. | temperature |
| C. | weather conditions |
| D. | all of the above. |
| Answer» E. | |
| 3630. |
If velocities of fluid particles vary from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be |
| A. | laminar |
| B. | turbulent flow |
| C. | uniform flow |
| D. | non-uniform flow. |
| Answer» C. uniform flow | |
| 3631. |
The rise of the liquid along the walls of a revolving cylinder above the initial level, is |
| A. | greater than the depression of the liquid at the axis of rotation |
| B. | lesser than the depression of the liquid at the axis of rotation |
| C. | the same as the depression of the liquid at the axis of rotation |
| D. | none of these. |
| Answer» D. none of these. | |
| 3632. |
Fluids change the volume under external presssure due to |
| A. | plasticity |
| B. | viscosity |
| C. | compressibility |
| D. | none of these. |
| Answer» D. none of these. | |
| 3633. |
If jet of water coming out from a nozzle with a velocity 9.81 m/s, the angle of elevation being 30 , the time to reach the highest point is |
| A. | 0.25 s |
| B. | 0.50 s |
| C. | 1.0 s |
| D. | 1.5 s. |
| Answer» C. 1.0 s | |
| 3634. |
The discharge through a 100 mm diameter external mouth piece fitted to the side of a large vessel is 0.05948 m3/s. The head over the mouth piece is |
| A. | 2 m |
| B. | 2.5 m |
| C. | 3.0 m |
| D. | 4.0 m. |
| Answer» E. | |
| 3635. |
If cohesion between the molecules of a fluid is more than adhesion between the fluid and glass, the free level of fluid in a dipped glass tube will be |
| A. | higher than the surface of liquid |
| B. | same as the surface of liquid |
| C. | lower than the surface of liquid |
| D. | none of these. |
| Answer» D. none of these. | |
| 3636. |
The continuity equation |
| A. | expresses the relationship between work and energy |
| B. | relates the momentum per unit volume between two points on a stream line |
| C. | relates mass rate of flow along a stream line |
| D. | requires that Newton's second law of motion be satisfied at every point in fluid. |
| Answer» D. requires that Newton's second law of motion be satisfied at every point in fluid. | |
| 3637. |
For the most economical trapezoidal open channel, |
| A. | half of the top width must be equal to one of the sloping sides |
| B. | the hydraulic mean depth must be equal to half the depth of flow |
| C. | the semicircle drawn with top width as diameter must touch the three sides of the channel |
| D. | All of these. |
| Answer» E. | |
| 3638. |
In a short cylindercial external mouthpiece, the venacontracta occurs at a distance from the outlet of orifice equal to |
| A. | diameter of the orifice |
| B. | one-fourth the diameter of the orifice |
| C. | one-third the diameter of the orifice |
| D. | two-third the diameter of the orifice |
| Answer» C. one-third the diameter of the orifice | |
| 3639. |
Mass density of liquid ( ) is given by |
| A. | <img src="/_files/images/civil-engineering/hydraulics/143-7.5-1.png"> |
| B. | <img src="/_files/images/civil-engineering/hydraulics/143-7.5-2.png"> |
| C. | <img src="/_files/images/civil-engineering/hydraulics/143-7.5-3.png"> |
| D. | all the above. |
| Answer» E. | |
| 3640. |
If the pressure at the inlet of a pipe is 90 kg/cm2 and pressure drop over the pipe line is 10 kg/cm2, the efficiency of transmission, is |
| A. | 66.6% |
| B. | 77.7% |
| C. | 55.5% |
| D. | 88.8%. |
| Answer» E. | |
| 3641. |
'Flow net' can be drawn only if the flow is |
| A. | turbulent |
| B. | rotational |
| C. | distortion |
| D. | none of these. |
| Answer» D. none of these. | |
| 3642. |
If H is the depth of water retained by a vertical wall, the height of centre of pressure above the bottom is |
| A. | <img src="/_files/images/civil-engineering/hydraulics/156-7.203-1.png"> |
| B. | <img src="/_files/images/civil-engineering/hydraulics/156-7.203-2.png"> |
| C. | <img src="/_files/images/civil-engineering/hydraulics/156-7.203-3.png"> |
| D. | <img src="/_files/images/civil-engineering/hydraulics/156-7.203-4.png"> |
| Answer» B. <img src="/_files/images/civil-engineering/hydraulics/156-7.203-2.png"> | |
| 3643. |
The flow in a channel is said to be non-uniform, if |
| A. | free water surface of an open channel is not parallel to the bed of channel |
| B. | head needed to overcome frictional reistance is less than the drop in elevation of channel bed |
| C. | head needed to overcome frictional resistance is more than the drop in elevation of channel bed |
| D. | all the above. |
| Answer» E. | |
| 3644. |
The pressure rise due to water hammer depends upon |
| A. | the velocity of flow of water in the pipe |
| B. | the length of pipe |
| C. | time taken to close the valve |
| D. | the elasticity of the pipe material |
| E. | All of above. |
| Answer» F. | |
| 3645. |
The flow in open channel is laminar if the Reynold number is |
| A. | less than 500 |
| B. | more than 500 |
| C. | 1000 |
| D. | none of these. |
| Answer» B. more than 500 | |
| 3646. |
Most economical section of a circular channel for maximum velocity, is if, |
| A. | depth of water = 0.810 diameter |
| B. | hydraulic mean depth = 0.304 diameter |
| C. | wetted perimeter = 2.245 diameters |
| D. | all the above. |
| Answer» E. | |
| 3647. |
In an inclined position, a venturimeter records |
| A. | more reading |
| B. | less reading |
| C. | same reading |
| D. | none of these. |
| Answer» D. none of these. | |
| 3648. |
In a two dimensional flow if the components of the velocity are u = ax ; v = by, the point where no motion occurs, is known as |
| A. | critical point |
| B. | neutral point |
| C. | stagnation point |
| D. | stationary point |
| E. | none of these. |
| Answer» D. stationary point | |
| 3649. |
If E1 and E2 are the specific energies at the start of back water curve and at the maximum rise of water respectively and ib and ie are the head slope and the energy line slope respectively, the length of back water (L) is given by |
| A. | <img src="/_files/images/civil-engineering/hydraulics/165-7.302-1.png"> |
| B. | <img src="/_files/images/civil-engineering/hydraulics/165-7.302-2.png"> |
| C. | <img src="/_files/images/civil-engineering/hydraulics/165-7.302-3.png"> |
| D. | None of these. |
| Answer» C. <img src="/_files/images/civil-engineering/hydraulics/165-7.302-3.png"> | |
| 3650. |
The intensity of pressure due to sudden closure of a valve of a pipe in which water flows with velocity v, is directly proportional to : |
| A. | square root of the bulk modulus of elasticity of water |
| B. | bulk modulus of elasticity of water |
| C. | specific weight of water |
| D. | none of these. |
| Answer» B. bulk modulus of elasticity of water | |