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MCQs 1: Shear stress in static fluid is

always zero always maximum between zero to maximum unpredictable
Answer Explanation

MCQs 2: Which branch of fluid mechanics deals with translation, rotation and deformation of the fluid element without considering the force and energy causing such motion is called as

fluid dynamics fluid kinematics fluid kinetics hydraulics
Answer Explanation

MCQs 3: Inter molecular cohesive force in the fluids is

less than that of the solids more than that of the solids equal to that of the solids unpredictable
Answer Explanation

MCQs 4: The specific weight of the fluid depends upon

gravitational acceleration mass density of the fluid both a. and b. none of the above
Answer Explanation

MCQs 5: Which property of the fluid offers resistance to deformation under the action of shear force?

density viscosity permeability specific gravity
Answer Explanation

MCQs 6: In which method of describing fluid motion, the observer remains stationary and observes changes in the fluid parameters at a particular point only?

Lagrangian method Eulerian method Stationary method All of the above
Answer Explanation

MCQs 7: The rate of increase of velocity with respect to change in the position of fluid particle in a flow field is called as

local acceleration temporal acceleration convective acceleration all of the above
Answer Explanation

MCQs 8: The actual path followed by a fluid particle as it moves during a period of time, is called as

path line streak line filament line stream line
Answer Explanation

MCQs 9: The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at the point, is called as

path line streak line filament line stream line
Answer Explanation

MCQs 10: The study of force which produces motion in a fluid is called as

fluid statics fluid dynamics fluid kinematics none of the above
Answer Explanation

MCQs 11: Which of the following forces generally act on fluid while considering fluid dynamics? 1. Viscous force 2. Pressure force 3. Gravity force 4. Turbulent force 5. Compressibility force

(1), (3), (4) and (5) (1), (2), (3) and (5) (1), (2), (3) and (4) (1), (2), (3), (4) and (5)
Answer Explanation

MCQs 12: The net force of an ideal flow is equal to the sum of nonzero values of

pressure force and gravity force viscous force and gravity force pressure force and viscous force pressure force, viscous force and compressibility force
Answer Explanation

MCQs 13: When the net force acting on a fluid is the sum of only gravity force, pressure force and viscous force, the equation is called as

Reynold's equation of motion Navier-stockes equation of motion Euler's equation of motion none of the above
Answer Explanation

MCQs 14: In a steady, ideal flow of an incompressible fluid, total energy at any point of the fluid is always constant. This theorem is known as

Euler's theorem Navier-stockes theorem Reynold's theorem Bernoulli's theorem
Answer Explanation

MCQs 15: The flow of fluid will be laminar when,

Reynold's number is less than 2000 the density of the fluid is low both a. and b. none of the above
Answer Explanation

MCQs 16: How should be the viscosity of the flowing fluid for laminar flow?

viscosity of the fluid should be as low as possible, for laminar flow viscosity of the fluid should be as high as possible, for laminar flow change in viscosity of the flowing fluid does not affect its flow unpredictable
Answer Explanation

MCQs 17: What is the ratio of maximum velocity to average velocity, when the fluid is passing through two parallel plates and flow is laminar?

3/2 2/3 4/3 3/4
Answer Explanation

MCQs 18: The head loss through fluid flowing pipe due to friction is

the minor loss the major loss both a. and b. none of the above
Answer Explanation

MCQs 19: Minor losses occur due to

sudden enlargement in pipe sudden contraction in pipe bends in pipe all of the above
Answer Explanation

MCQs 20: Minor losses do not make any serious effect in

short pipes long pipes both the short as well as long pipes cannot say
Answer Explanation

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