EXAMIANS
In which of the following the friction drag is generally larger than pressure drag?
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A perfect gas
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In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is
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The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is
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THE THEORETICAL VALUE OF COEFFICIENT OF CONTRACTION OF A SHARP EDGED ORIFICE IS
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The resultant of all normal pressures acts
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Surface energy per unit area of a surface is numerically equal to
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Specific weight of sea water is more that of pure water because it contains
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Flow at constant rate through a tapering pipe is i) steady flow ii) uniform flow iii) unsteady flow iv) non-uniform flow The correct answer is
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At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be
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