Chapter 1: FLUID AND FLUID PROPERTIES
Q1» Classified fluid in detail.
Q2» Explain the followings terms.
1) Mass density 2) Sp. Weight 3) Sp. Gravity 4) Dy. Viscosity 5) Kinematic Viscosity 6) surface Tension 7)Cohesion 8) Adhesion
9) Compressibility 10) Capillary 11) Bulk Modulus 12) Vapour Pressure
Q3» State & explain Newton’s law of viscosity.
Q4» In 60mm long journal bearing the clearance between two at concentric condition is 0.15mm. The shaft is 25mm in diameter and rotates at 3000rpm. The dynamic viscosity of lubricants is 0.01pa. The velocity variation in lubricant is linear. Calculate frictional torque the journal has to overcome, and corresponding power loss. (Ans : 4.48 W)
Chapter 2: FLUID STATIC
Q1» Define absolute pressure, gauge pressure and vacuum pressure, also plot relation between them.
Q2» What force act on fluid element in static equilibrium? Calculate water pressure head equivalent to intensity of pressure 343.35KPa.
Q3» State Pascal’s law and prove it.
Q4» Classify Pressure measuring devices and briefly explain one in each group.
Q5» A differential manometer containing mercury is connected two points 15m apart on pipeline. Pipe is straight and slop at 15° with horizontal. The manometer gives reading of 150mm. determine the pressure differential between two points of pipeline take sp. gravity of Hg 13.6 and water 1.0. (Ans : 5.77m of water)
Q6» Suppose if you have one barometer and want to know the height of buildings then how can you find it? (Give explanation of your procedure only)
Chapter 3: FLUID KINEMATICS
Q1» Differentiate between.
· Steady flow – unsteady flow
· Rotational flow – irrotational flow
· Uniform flow – non-uniform flow
· Stream line – path line
· One dimensional flow – two dimensional flow
· Laminar flow – turbulent flow
· Pressure flow – pressure-less flow
Q2» define the followings terms:
1) Stream line 2) Streak line 3) Path line 4) Stream tube 5) Control volume 6) Control surface
Q3» State and derive continuity equation.