Young, Munson and Okiishi\'s A Brief Introduction to Fluid Mechanics
IT COVERS THESE SUBJECTS :
A) FLUID PROPERTIES AND FLUID STATICS (HYDROSTATIC PRESSURE , FORCE ON SURFACE .
B) KINEMATICS, PRESSURE VARIATION , BERNOULLI EQUATIONS .
C) CONSERVATION OF VOLUME (CONTINUTY EQUATION).
D) MOMENTUM ANALYSIS .
E) ENERGY EQUATIONS.
F) PIPE FLOW (SURFACE RESISTANCE, F...
Q1) A cylindrical vessel 40 cm high is revolved about its vertcal axis so that the water
touches the botom when it just spills out. If the radius of the cylinder is √ 5 cm, the
angular velocity of rotaton, is :
A. 2 rad/sec
B. 3 rad/sec
C. 4 rad/sec
,D. 5 rad/sec
E. none of these.
Q2) A fuid is fowing over a plate where the velocity distributon is given by u= (2/3y
y^2 ) . take the dynamic viscosity of the fuid is (0.863) n.s/m^2 . Determine the shear
stresses at ,y=0.15 m
A. 2.2 N/M^2
B. 0.3167 N/M^2
C. 1.041 N/M^2
D. 0.773 N/M^2
C. 0.0951 N/M^2
Q3) The maximum vacuum created at the summit of a syphon is :
A. 2.7 m of water
B. 7.4 m of water
C. 5.5 m of water
D. 4.33 m of water
E. none.
Q4) An oil of 1.5mm thickness is used for lubricaton between a square plate (0.8m *
0.8m ) and an inlined plane , the angle of inclinaton is 30 ° . The weight of the plane is
300N , and it moves down with a uniform velocity of 0.3 m/s . Determine the dynamic
,vescosity of the oil ?
A. 9 (N.S/M^2)
B. 3.21 (N.S/M^2)
C.1.17 (N.S/M^2)
D. 2.962 (N.S/M^2)
C. 5.77 (N.S/M^2)
Q5) If the atmospheric pressure on the surface of an oil tank (S.G = 0.8) is 0.1 kg/cm2,
the pressure at a depth of 2.5 m, is
A. 2 meters of water
B. 3 meters of water
C. 4 meters of water
D. 6 meters of water
Q6) If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 is its :
A. specifc weight
B. specifc mass
C. specifc gravity
D.none of thes
, Q7) Compare the compressibillity of air (K= 1*10^5) , and water (2.2*10^9 ) at room
conditons and explain it :
A.15,000
B.20,000
C. 22,000
D. 19,000
Q8) when the pressure of a liquid is increased from (3.5 m.n/m^2) to (6.5 m.n/m^2) ,
its volume found to be decreased by 0.08 percent .
determine the bulk modules of elastcity of the liquid ?
A. 4.44 G.N/ M^2
B. 5.03 G.N/ M^2
C. 1.45 G.N/ M^2
D. 3.75 G.N/ M^2
Q9) Bernoulli's equaton assumes that
A. fuid is non viscous
B. fuid is homogeneous
C. fow is steady
D. fow is along the stream line
E. all the above.
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