MCQOPTIONS
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MCQOPTIONS
This section includes 248 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The property of a fluid which enables it to resist tensile stress is known as________________? |
| A. | compressibility |
| B. | surface tension |
| C. | cohesion |
| D. | adhesion |
| E. | viscosity |
| Answer» D. adhesion | |
| 52. |
The process of diffusion of one liquid into the other through a semi-permeable membrane is called _______________? |
| A. | viscosity |
| B. | osmosis |
| C. | surface tension |
| D. | cohesion |
| E. | diffusivity |
| Answer» C. surface tension | |
| 53. |
The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be ___________________? |
| A. | 2 meters of water column |
| B. | 3 meters of water column |
| C. | 3.5 meters of water column |
| D. | 4 m of water column |
| E. | none of the above |
| Answer» C. 3.5 meters of water column | |
| 54. |
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to________________? |
| A. | 1 Pa |
| B. | 91Pa |
| C. | 981 Pa |
| D. | 9810 Pa |
| E. | 98,100 Pa |
| Answer» E. 98,100 Pa | |
| 55. |
The pressure at a point in a fluid will not be same in all the directions when the fluid is________________? |
| A. | moving |
| B. | viscous |
| C. | viscous and static |
| D. | inviscous and moving |
| E. | viscous and moving |
| Answer» F. | |
| 56. |
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as____________________? |
| A. | meta center |
| B. | center of pressure |
| C. | center of buoyancy |
| D. | center of gravity |
| E. | none of the above |
| Answer» C. center of buoyancy | |
| 57. |
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called_________________? |
| A. | surface tension |
| B. | co-efficient of viscosity |
| C. | viscosity |
| D. | osmosis |
| E. | cohesion |
| Answer» D. osmosis | |
| 58. |
The normal stress is same in all directions at a point in a fluid ___________________? |
| A. | only when the fluid is frictionless |
| B. | only when the fluid is incompressible and has zero viscosity |
| C. | when there is no motion of one fluid layer relative to an adjacent layer |
| D. | irrespective of the motion of one fluid layer relative to an adjacent layer |
| E. | in case of an ideal fluid |
| Answer» D. irrespective of the motion of one fluid layer relative to an adjacent layer | |
| 59. |
The normal stress in a fluid will be constant in all directions at a point only if_________________? |
| A. | it is incompressible |
| B. | it has uniform viscosity |
| C. | it has zero viscosity |
| D. | it is frictionless |
| E. | it is at rest |
| Answer» F. | |
| 60. |
The line of action of the buoyant force acts through the centroid of the ___________________? |
| A. | submerged body |
| B. | volume of the floating body |
| C. | volume of the fluid vertically above the body |
| D. | displaced volume of the fluid |
| E. | none of the above |
| Answer» E. none of the above | |
| 61. |
The increase of temperature results in_________________? |
| A. | increase in viscosity of gas |
| B. | increase in viscosity of liquid |
| C. | decrease in viscosity of gas |
| D. | decrease in viscosity of liquid |
| E. | A. and D. above |
| Answer» E. A. and D. above | |
| 62. |
The horizontal component of buoyant force is__________________? |
| A. | negligible |
| B. | same as buoyant force |
| C. | zero |
| D. | non of these |
| Answer» D. non of these | |
| 63. |
The fluid forces considered in the Navier Stokes equation are__________________? |
| A. | gravity, pressure and viscous |
| B. | gravity, pressure and turbulent |
| C. | pressure, viscous and turbulent |
| D. | gravity, viscous and turbulent |
| E. | none of the above |
| Answer» B. gravity, pressure and turbulent | |
| 64. |
The flow which neglects changes in a transverse direction is known as ____________________? |
| A. | one dimensional flow |
| B. | uniform flow |
| C. | steady flow |
| D. | turbulent flow |
| E. | streamline flow |
| Answer» B. uniform flow | |
| 65. |
The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as___________________? |
| A. | one dimensional flow |
| B. | uniform flow |
| C. | steady flow |
| D. | turbulent flow |
| E. | streamline flow |
| Answer» C. steady flow | |
| 66. |
The flow in which the particles of a fluid attain such velocities that vary from point to point in magnitude and direction as well as from instant to instant, is known as_________________? |
| A. | one dimensional flow |
| B. | uniform flow |
| C. | steady flow |
| D. | turbulent flow |
| E. | streamline flow |
| Answer» E. streamline flow | |
| 67. |
The flow in which each liquid particle has a definite path and their paths do not cross each other is called____________________? |
| A. | one dimensional flow |
| B. | uniform flow |
| C. | steady flow |
| D. | turbulent flow |
| E. | streamline flow |
| Answer» F. | |
| 68. |
The flow in which conditions do not change with time at any point, is known as _____________________? |
| A. | one dimensional flow |
| B. | uniform flow |
| C. | steady flow |
| D. | turbulent flow |
| E. | streamline flow |
| Answer» D. turbulent flow | |
| 69. |
The equation of continuity holds good when the flow __________________? |
| A. | is steady |
| B. | is one dimensional |
| C. | velocity is uniform at all the cross sec-tions |
| D. | all of the above |
| E. | none of the above |
| Answer» E. none of the above | |
| 70. |
The difference of pressure between the inside and outside of a liquid drop is________________? |
| A. | p = Txr |
| B. | p = T/r |
| C. | p = T/2r |
| D. | p = 2T/r |
| E. | none of the above |
| Answer» E. none of the above | |
| 71. |
The difference of pressure between the inside and outside of a liquid drop is_____________? |
| A. | p = Txr |
| B. | p = T/r |
| C. | p = T/2r |
| D. | p = 2T/r |
| E. | none of the above |
| Answer» E. none of the above | |
| 72. |
The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is ______________________? |
| A. | 2.4 m |
| B. | 3.0 m |
| C. | 4.0 m |
| D. | 2.5 m |
| E. | 5.0 m |
| Answer» C. 4.0 m | |
| 73. |
The density of water is 1000 kg/m3 at __________________? |
| A. | 0°C |
| B. | 0°K |
| C. | 4°C D. 20°C |
| D. | all temperature |
| Answer» D. all temperature | |
| 74. |
The continuity equation is connected with_______________? |
| A. | viscous/unviscous fluids |
| B. | compressibility of fluids |
| C. | conservation of mass |
| D. | steady/unsteady flow |
| E. | open channel/pipe flow |
| Answer» D. steady/unsteady flow | |
| 75. |
The conditions for the stable equilibrium of a floating body are_______________? |
| A. | the meta-center should lie above the center of gravity |
| B. | the center of buoyancy and the center of gravity must lie on the same vertical line |
| C. | a righting couple should be formed |
| D. | all the above are correct |
| E. | none of the above is correct |
| Answer» E. none of the above is correct | |
| 76. |
The center of pressure of a surface subjected to fluid pressure is the point____________________? |
| A. | on the surface at which resultant pres-sure acts |
| B. | on the surface at which gravitational force acis |
| C. | at which all hydraulic forces meet |
| D. | similar to metacentre |
| E. | where pressure equivalent to hydraulic thrust will act |
| Answer» B. on the surface at which gravitational force acis | |
| 77. |
The center of gravity of the volume of the liquid displaced by an immersed body is called________________? |
| A. | meta-center |
| B. | center of pressure |
| C. | center of buoyancy |
| D. | center of gravity |
| E. | none of the above |
| Answer» D. center of gravity | |
| 78. |
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately____________________? |
| A. | 1 mm |
| B. | 5 mm |
| C. | 10 mm |
| D. | 20 mm |
| E. | 30 mm |
| Answer» F. | |
| 79. |
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is ap-proximately_______________? |
| A. | 1 mm |
| B. | 5 mm |
| C. | 10 mm |
| D. | 20 mm |
| E. | 30 mm |
| Answer» F. | |
| 80. |
The buoyancy depends on__________________? |
| A. | mass of liquid displaced |
| B. | viscosity of the liquid |
| C. | pressure of the liquid displaced |
| D. | depth of immersion |
| E. | none of the above |
| Answer» B. viscosity of the liquid | |
| 81. |
The bulk modulus of elasticity with increase in pressure___________________? |
| A. | increases |
| B. | decreases |
| C. | remains constant |
| D. | increases first upto certain limit and then decreases |
| E. | unpredictable |
| Answer» B. decreases | |
| 82. |
The bulk modulus of elasticity __________________? |
| A. | has the dimensions of 1/pressure |
| B. | increases with pressure |
| C. | is large when fluid is more compressible |
| D. | is independent of pressure and viscosity |
| E. | is directly proportional to flow |
| Answer» C. is large when fluid is more compressible | |
| 83. |
The atmospheric pressure with rise in altitude decreases____________________? |
| A. | linearly |
| B. | first slowly and then steeply |
| C. | first steeply and then gradually |
| D. | unpredictable |
| E. | none of the above |
| Answer» C. first steeply and then gradually | |
| 84. |
The angle of contact in case of a liquid depends upon____________________? |
| A. | the nature of the liquid and the solid |
| B. | the material which exists above the free surface of the liquid |
| C. | both of die above |
| D. | any one of the above |
| E. | none of die above |
| Answer» D. any one of the above | |
| 85. |
Rotameter is a device used to measure____________________? |
| A. | absolute pressure |
| B. | velocity of fluid |
| C. | flow |
| D. | rotation |
| E. | velocity of air |
| Answer» D. rotation | |
| 86. |
Reynolds number is significant in____________________? |
| A. | supersonics, as with projectile and jet propulsion |
| B. | full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc |
| C. | simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls |
| D. | all of the above |
| E. | none of the above |
| Answer» C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls | |
| 87. |
Resultant pressure of the liquid in the case of an immersed body acts through _________________? |
| A. | center of gravity |
| B. | center of pressure |
| C. | metacentre |
| D. | center of buoyancy |
| E. | in between e.g. and center of pressure |
| Answer» C. metacentre | |
| 88. |
Ratio of inertia force to surface Jension is known as ________________________? |
| A. | Mach number |
| B. | Froude number |
| C. | Reynold’s number |
| D. | Weber’s number |
| E. | none of the above |
| Answer» E. none of the above | |
| 89. |
Ratio of inertia force to elastic force is known as _____________________? |
| A. | Mach number |
| B. | Froude number |
| C. | Reynold’s number |
| D. | Weber’s number |
| E. | none of the above |
| Answer» B. Froude number | |
| 90. |
Rain drops are spherical because of____________________? |
| A. | viscosity |
| B. | air resistance |
| C. | surface tension forces |
| D. | atmospheric pressure |
| E. | none of the above |
| Answer» D. atmospheric pressure | |
| 91. |
Property of a fluid by which molecules of different kinds of fluids are attracted to each other is called________________? |
| A. | adhesion |
| B. | cohesion |
| C. | viscosity |
| D. | compressibility |
| E. | surface tension |
| Answer» B. cohesion | |
| 92. |
Property of a fluid by which its own molecules are attracted is called ________________? |
| A. | adhesion |
| B. | cohesion |
| C. | viscosity |
| D. | compressibility |
| E. | surface tension |
| Answer» C. viscosity | |
| 93. |
Principle of similitude forms the basis of__________________? |
| A. | comparing two identical equipments |
| B. | designing models so that the result can be converted to prototypes |
| C. | comparing similarity between design and actual equipment |
| D. | hydraulic designs |
| E. | performing acceptance tests |
| Answer» C. comparing similarity between design and actual equipment | |
| 94. |
Pressure of the order of 10″‘ torr can be measured by_______________ ? |
| A. | Bourdon tube |
| B. | Pirani Gauge |
| C. | micro-manometer |
| D. | ionisastion gauge |
| E. | McLeod gauge |
| Answer» E. McLeod gauge | |
| 95. |
Practical fluids____________________? |
| A. | are viscous |
| B. | possess surface tension |
| C. | are compressible |
| D. | possess all the above properties |
| E. | possess none of the above properties |
| Answer» E. possess none of the above properties | |
| 96. |
Poise is the unit of________________? |
| A. | surface tension |
| B. | capillarity |
| C. | viscosity |
| D. | shear stress in fluids |
| E. | buoyancy |
| Answer» D. shear stress in fluids | |
| 97. |
Pitot tube is used for measurement of__________________? |
| A. | pressure |
| B. | flow |
| C. | velocity |
| D. | discharge |
| E. | viscosity |
| Answer» D. discharge | |
| 98. |
Operation of McLeod gauge used for low pressure measurement is based on the principle of_____________________? |
| A. | gas law |
| B. | Boyle’s law |
| C. | Charle’s law |
| D. | Pascal’s law |
| E. | McLeod’s law |
| Answer» C. Charle’s law | |
| 99. |
Normal depth in open channel flow is the depth of flow corresponding to_______________? |
| A. | steady flow |
| B. | unsteady flow |
| C. | laminar flow |
| D. | uniform flow |
| E. | critical flow |
| Answer» E. critical flow | |
| 100. |
Non uniform flow occurs when ____________________? |
| A. | the direction and magnitude of the velocity at all points are identical |
| B. | the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time |
| C. | the magnitude aricf direction of the velocity do not change from point to point in the fluid |
| D. | the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane |
| E. | velocity, depth, pressure, etc. change from point to point in the fluid flow |
| Answer» F. | |