1. When body or matter flows from one point to another point on application of shear force, it is called
Correct : A. Fluid
2. In fluid, the distance between the molecules is less.
Correct : B. false
3. In solid, resistance to shear force is less.
Correct : A. true
4. ______ is the branch of engineering dealing with the study of behaviour of fluid when it is at
rest or in motion.
Correct : A. Fluid Mechanics
5. ______ is the branch of engineering dealing with the study of behaviour of liquid when it is at
rest or in motion.
Correct : B. Hydraulics
6. ______ is the branch of civil engineering dealing with the behavior of fluid when it is at rest.
Correct : B. hydro statics
7. ______ is the branch of civil engineering dealing with the behavior of fluid when it is in motion, without reference to the force responsible for flow.
Correct : B. hydro statics
8. ______ is the branch of civil engineering dealing with the behaviour of fluid when it is in
motion, with reference to the force responsible for flow.
Correct : D. hydro kinematics
9. A fluid which is incompressible, and is having no viscosity, no surface tension, is known as
________.
Correct : A. Ideal fluid
10. A fluid which is compressible, has viscosity and surface tension, Is known as ____________.
Correct : B. Real fluid
11. A real fluid, in which the shear stress is directly proportional to the rate of shear strain (or
velocity gradient), is known as ___________.
Correct : C. Newtonian fluid
12. A real fluid, in which the shear stress is not proportional to the rate of shear strain (or velocity gradient), is known as __________.
Correct : D. Non-Newtonian fluid
13. A fluid in which shear stress is more than the yield value and shear stress is proportional to
the rate of shear strain (or velocity gradient) is known as ___________.
Correct : A. Ideal plastic fluid
14. ______ is defined as the ratio of weight of a fluid to its volume.
Correct : B. Specific weight
15. ______ is defined as the ratio of mass of a fluid to its volume.
Correct : A. Density
16. ____________ is defined as the ratio of the weight density (or density) a fluid to the weight
density (or density) of a standard fluid.
Correct : C. Specific gravity
17. Tensile force acting on the free surface of a liquid per unit length is called ___________.
Correct : D. Surface tension
18. Attraction between the molecules of same liquid is known as __________.
Correct : A. Cohesion
19. Attraction between the molecules of liquids to another body is called ___________.
Correct : B. Adhesion
20. When viscosity of fluid is studied with reference to motion of fluid, it is called ___________.
Correct : D. Kinetic Viscosity
21. When viscosity of fluid is studied with reference to force, it is called ___________.
Correct : C. Dynamic Viscosity
22. ______ is defined as the property of a fluid which offers resistance to movement of one layer
of fluid over another adjacent layer of the fluid.
Correct : B. Viscosity
23. ____________ is defined as a phenomenon of rise or fall of a liquid in a small tube, when the
tube is held vertically in the liquid.
Correct : A. Capillarity
24. ___________ is defined as the pressure at which the liquid will transform into vapour at the
given temperature.
Correct : D. Vapor pressure
25. The reciprocal of bulk modulus of elasticity is called __________.
Correct : C. Compressibility
26. The unit of specific gravity is ___________.
Correct : D. no unit
27. The unit of surface tension is ___________.
Correct : B. N/m
28. The unit of pressure is ___________.
Correct : C. Pa
29. For a liquid having mass 2000 kg and volume 2.5 m3. Calculate mass density.
Correct : C. 800 kg/m3
30. If weight density of liquid is 8.0 kN/m3 , find its specific gravity.
Correct : D. 0.815
31. Whenever a liquid (such as water, oil etc.) is filled in a vessel, it exerts force at all points on the sides and bottom of the container. This force per unit area is called
Correct : A. pressure
32. In a static liquid, vertical distance from datum line to the free surface of liquid is known as
Correct : B. pressure head
33. Intensity of pressure (p) is proportional to the pressure head (h)
Correct : A. true
34. The air surrounding the earth Possess some weight. Due to its weight, the air exerts some pressure on the surface of the earth. This pressure is known as
Correct : A. Atmospheric pressure
35. When pressure is measured with reference to absolute zero pressure it is known as
Correct : B. Absolute Pressure
36. When pressure is measured with reference to atmospheric pressure, it is known as
Correct : C. Gauge Pressure
37. When pressure is measured with reference to atmospheric pressure, but it is below
atmospheric pressure, it is known as
41. From following which equation is used to measure negative pressure in u-tube manometer
Correct : D. - s2h2 - s1h1
42. A simple manometer containing mercury is used to measure pressure of oil (sp. gr. 0.8) flowing in a pipe as shown below. Mercury level in open tube is 150 mm higher than that on left limb. If height of oil in left limb is 90 mm, determine the pressure in terms of head of water in a pipe.
Correct : A. 19.306 kN/m3
43. Pressure of liquid per unit area is called
Correct : C. Pressure intensity
44. A water tank contains 1.5 m deep water. Find pressure exerted by water per metre length of
the tank.
Correct : B. 11.04 kN/m
45. A swimming pool having one side 10 m long, is filled with water up to 3.6 m depth. Find total pressure on the wall of the pool
Correct : C. 635.70 kN
46. "The intensity of pressure at any point in a fluid at rest, is same in all directions".
This is statement of
Correct : A. Pascal’s law
47. The force exerted by a statue fluid on a surface either plane or curved when the fluid comes in contact with the surface is called,
Correct : A. total pressure
48. The force exerted by a statue fluid on a surface either plane or curved when the fluid comes in
contact with the surface.
Correct : B. center of pressure
49. The centre of pressure lies below the centre of gravity of the immersed surface.
Correct : A. true
50. From following, which is correct?
Correct : B. F = w A ̅
51. A rectangular plate of 2 m x 3 m height is immersed in water vertically with top edge parallel to and at depth of 3 m below free surface. Calculate total water pressure.
Correct : A. 264.87 kN
52. An inverted triangular plate is having base parallel to water surface with width 1.6 m and height 2.10 m. It is submerged in water in such a way that its base is 1.0 m below free surface. Find total pressure.
Correct : B. 28.01 kN
53. A circular plate 2.5 m diameter is immersed in water with its greatest and lowest depth below the free surface being 3.0m and 1.0m respectively. Find the position of centre of pressure
Correct : A. 2.125 m
54. Type of flow in which the fluid characteristics like velocity, pressure, density etc. at a point do not change with time is known as
Correct : A. steady flow
55. Type of flow in which the velocity at any given time changes with respect to space is known as
Correct : D. non-uniform flow
56. Type of flow in which the velocity at any given time does not change with respect to space is known as
Correct : C. uniform flow
57. Type of flow in which the fluid characteristics like velocity, pressure, density etc. at a point
change with time is known as
Correct : B. unsteady flow
58. Type of flow in which the fluid particles also rotates about their own axes while flowing is known as
Correct : C. rotational flow
59. Type of flow in which fluid particles do not rotate about their own axes while flowing is
known as
Correct : D. ir-rotational flow
60. Type of flow in which the density is constant for the fluid flow is known as
Correct : B. incompressible flow
61. Type of flow in which the density of fluid change from point to point is known as
Correct : A. compressible flow
62. The imaginary line, drawn in the fluid E in such a way that the tangent to any point gives the
direction of motion (velocity) at the point is called
Correct : A. stream line
63. The instantaneous pictures of the position of all fluid particles, which have passed through a
given point at some previous time, are called
Correct : B. streak line
64. The lines joining the points of equal potential (head) on adjacent low lines are called
Correct : C. potential line
65. An element of fluid bonded by a number of stream lines, which confine the flow, is called
Correct : D. stream tube
66. If Reynolds Number is between 2000 to 4000, the type of flow is,
Correct : B. Transition flow
67. If Reynolds Number is less than 2000, the type of flow is,
Correct : A. Laminar flow
68. If Reynolds Number is greater than 4000, the type of flow is,
Correct : C. Turbulent flow
69. “For a fluid flowing throw the pipe the quantity of fluid passing per second is constant at all section.” This is statement of
Correct : B. Continuity equation
70. The diameters of a pipe at the sections 1 and 2 are 10 cm and15 cm respectively. Find the discharge through the pipe if the velocity of water flowing through the pipe at section 1 is 5 m/s.
Correct : B. 0.0393 m3/sec
71. Liquid is flowing through 200 mm diameter tube with mean velocity of 2 m/sec. If density of
liquid is 912 kg/m3
and viscosity is0.38 N.S/m2
find type of flow.
Correct : A. Laminar flow
72. The diameters of a pipe at the sections 1 and 2 are 10 cm and15 cm respectively. The velocity
of water flowing through the pipe at section 1 is 5 m/s. Determine the velocity at section 2.
Correct : C. 2.22 m/sec
73. The energy possessed by a liquid particle by virtue of its position is known as
Correct : A. potential energy
74. The energy possessed by a liquid particle by virtue of its existing pressure is known as
Correct : C. pressure energy
75. The energy possessed by a liquid particle by virtue of its velocity or motion is known as
Correct : B. kinetic energy
76. “In a steady, ideal flow of an incompressible fluid, the total energy at any point of the fluid is constant."
This is statement of
79. In converging cone area gradually __________ and hence velocity _____________.
Correct : C. decrease, increase
80. The angle of converging cone is about
Correct : D. 20°
81. The length of converging cone is about
Correct : A. 2.5 d1
82. In diverging cone area gradually __________ and hence velocity _____________.
Correct : B. increase, decrease
83. The angle of diverging cone is about
Correct : B. 7°
84. The length of diverging cone is about
Correct : C. 7.5 d1
85. A differential manometer is fitted between two ends of
Correct : A. converging cone
86. ________________ is an Instrument to determine the velocity of flow at the required point in a pipe or a stream.
Correct : C. Pitot tube
87. Pitot tube is consists of a glass tube bent through
Correct : D. 90°
88. Venturiflume is used to measure the flow in an open canal.
Correct : A. true
89. A 30 cm x 20 cm horizontal venturimeter is placed to measure the flow rate of water. The pressure difference between the inlet and the throat is 2.52 m (of water). Find the flow rate of the venturimeter with a constant of 0.98.
Correct : A. 0.241 m3/sec
90. An opening in a tank or vessel through which the liquid flows out is known as
Correct : B. orifice
91. if H > 5 D, type of orifice is
Correct : B. small orifice
92. if H < 5 D, type of orifice is
Correct : A. large orifice
93. When discharge of orifice is free in the air, it is called
Correct : B. free discharge orifice
94. When orifice discharge the liquid into some other vessel containing the liquid, and the outlet
is completely submerged, the orifice is called
Correct : C. fully submerged orifice
95. When orifice discharge the liquid in to some other vessel containing the liquid, and the outlet
is partially under liquid the orifice is called