# CE8302 Fluid Mechanics MCQ Question And Answers

#### 4. If the dynamic viscosity of a fluid is 0.5 poise and specific gravity is

#### 7. An open tank contains 1m deep water with 50 cm depth of oil of specific gravity 0.8 above it. The intensity of pressure at the bottom of

#### 8. The position of center of pressure on a plane surface immersed

#### 9. The total pressure on a plane surface inclined at an angle 9 with the

#### 10. A vertical rectangular plane surface is submerged in water such that

#### 12. If the weight of a body immersed in a fluid exceeds the buoyant force,

#### 13. Metacentric height for small values of angle of heel is the distance

#### 16. A rectangular block 2 m long, 1 m wide and 1 m deep floats in water,

#### 17. The point in the immersed body through which the resultant pressure

#### 18. If a vessel containing liquid moves downward with a constant

#### c) the pressure in the liquid mass is greater than hydrostatic pressure

#### 19. When a liquid rotates at a constant angular velocity about a vertical

#### 20. An open cubical tank of 2 m side is filled with water. If the tank is

#### 21. A right circular cylinder open at the top is filled with liquid and

#### 23. A closed tank containing water is moving in a horizontal direction

#### i) the ball will move to the front

#### iv) the bubble will move to the rear Find out which of the above statements are

#### 26. In a two dimensional incompressible steady flow around an airfoil,

#### 27. When the velocity distribution is uniform over the cross-section, the

#### 29. If the velocity is zero over half of the cross-sectional area and is

#### 30. If velocity is zero over 1/3rd of a cross-section and is uniform over

#### pi V,A,= p2V2A2 is based on the following assumption regarding flow of

#### 32. Which of the following velocity potentials satisfies continuity

#### 40. The theoretical value of coefficient of contraction of a sharp edged

#### 44. Due to each end contraction, the discharge of rectangular sharp

#### 46. Which of the following is an incorrect statement ?

#### c) Discharge is independent of orientation of venturimeter whether it is horizontal,

#### 47. Coefficient of velocity of venturimeter

#### 51. Coefficient of discharge for a totally submerged orifice as compared

#### 56. The discharge over a broad crested weir is maximum when the depth

#### a) Lower critical Reynolds number is of no practical significance in pipe flow

#### d) Upper critical Reynolds number is the number at which turbulent flow changes to

#### 58. For a sphere of radius 15 cm moving with a uniform velocity of 2

#### 59. The shear stress distribution for a fluid flowing in between the

#### 60. If x is the distance from leading edge, then the boundary layer

#### 62. The depth ‘d’ below the free surface at which the point velocity is

#### 64. The distance y from pipe boundary, at which the point velocity is

#### 65. Ifa sphere of diameter 1 cm falls in castor oil of kinematic viscosity

#### a) highest intensity of pressure occurs around the circumference at right angles to

#### 68. With the same cross-sectional area and immersed in same turbulent

#### 69. In which of the following the friction drag is generally larger than

#### 70. For hydro-dynamically smooth boundary, the friction coefficient for

#### 71. The value of friction factor ‘f for smooth pipes for Reynolds number

#### 72. For laminar flow in a pipe of circular cross-section, the Darcy’s

#### d) inversely proportional to Reynolds number and directly proportional to pipe wall

#### 74. The ratio of average velocity to maximum velocity for steady laminar

#### 75. The distance from pipe boundary, at which the turbulent shear stress

#### 76. The discharge of a liquid of kinematic viscosity 4 cm2/sec through a 8

#### 79. A fluid of kinematic viscosity 0.4 cm2/sec flows through a 8 cm

#### 87. A valve is suddenly closed in a water main in which the velocity is 1

#### 89. When time of closure te = L/vo (where L is length of pipe and vo is

#### 90. If the elevation of hydraulic grade line at the junction of three pipes

#### 91. The length of a pipe is 1 km and its diameter is 20 cm. If the diameter

#### 92. Two pipes of same length and diameters d and 2d respectively are

#### 93. The horse power transmitted through a pipe is maximum when the

#### 94. The boundary layer thickness at a distance of 1 m from the leading

#### 96. The correct relationship among displacement thickness d,

#### 97. For laminar flow in circular pipes, the Darcy’s friction factor f is

#### The correct answer is

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- CE8302 Fluid Mechanics MCQ Question And Answers

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