MCQ 1 Stream lines and path line always co-incide in-case of.

(A) Turbulent Flow (B) Laminar Flow (C) Uniform Flow (D) Steady Flow

MCQ 2 The pitot tube is used to measure

(A) Static pressure (B) Dynamic pressure (C) Velocity at stagnation point (D) Stagnation pressure

MCQ 3 Which of the following is used to measure the discharge?

(A) Venturimeter (B) Hotwire Anemometer (C) Pitot Tube (D) Current Meter

MCQ 4 Surface tension of water

(A) Is independent of temperature (B) Decreases with decrease in temperature (C) Increases with decrease in temperature (D) None of these

MCQ 5 Newton’s law of viscosity relates

(A) Viscosity and rate of angular deformation (B) Shear stress, viscosity and temperature (C) Shear stress and rate angular deformation (D) Intensity of pressure and rate of angular deformation

MCQ 6 The maximum thickness of boundary layer in a pipe of radius r is

(A) 0 (B) r/2 (C) r (D) 2r

MCQ 7 Equation of continuity is based on the principle of conservation of

(A) Mass (B) Momentum (C) Energy (D) None of the above

MCQ 8 Size of a Venturimeter is specified by

(A) Pipe diameter (B) Throat diameter (C) Angle of diverging section (D) Both pipe diameter as well as throat diameter

MCQ 9 An impulse turbine

(A) Always operates submerged (B) Operates by initial complete conversion to kinetic energy (C) Converts pressure head into velocity throughout the values (D) Makes use of a draft tube

MCQ 10 The losses are more in

(A) Laminar Flow (B) Transition Flow (C) Critical Flow (D) Turbulent Flow

MCQ 11 The most common device for measuring discharge through channels is

(A) Venture Flume (B) Current meter (C) Pitot tube (D) All of the above

MCQ 12 The velocity distribution for laminar flow through a circular tube

(A) Varies parabolically with maximum at the centre (B) Is constant over the cross-section (C) Varies linearly from zero at walls to maximum at centre (D) None of the above

MCQ 13 At room temperature, the dynamic and kinematic viscosity of water

(A) Are both greater than that of air (B) Are both less than that of air (C) Are respectively greater than and less than that of air (D) Are respectively less than and greater than that of air

MCQ 14 In steady flow of a fluid, the total acceleration of any fluid particle

(A) Is always zero (B) Is never zero (C) Is independent of coordinates (D) Can be zero

MCQ 15 The pressure coefficient is the ratio of pressure forces to

(A) Inertial forces (B) Viscous forces (C) Gravity forces (D) None of the above