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.Management Sciences
Category: Hydraulics and Fluid Mechanics
At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be_______________?
A. minimum
B. maximum
C. zero
D. negative value
E. could be any value
Rotameter is a device used to measure____________________?
A. absolute pressure
B. velocity of fluid
C. flow
D. rotation
E. velocity of air
A streamline is defined as the line ________________?
A. parallel to central axis flow
B. parallel to outer surface of pipe
C. of equal yelocity in a flow
D. along which the pressure drop is uniform
E. which occurs in all flows
Center of pressure on an inclined plane is______________________?
A. at the centroid
B. above the centroid
C. below the centroid
D. at metacentre
E. at center of pressure
The center of gravity of the volume of the liquid displaced by an immersed body is called________________?
A. meta-center
B. center of pressure
C. center of buoyancy
D. center of gravity
E. none of the above
The rise or depression of liquid in a tube due to surface tension wim increase in size of tube will_______________?
A. increase
B. remain unaffected
C. may increase or decrease depending on the characteristics of liquid
D. decrease
E. unpredictable
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to___________________?
A. head of water (h)
B. h2
C. V/T
D. h2
E. h3/1.
A fluid in equilibrium can’t sustain_________________?
A. tensile stress
B. compressive stress
C. shear stress
D. bending stress
E. all of the above
Working principle of dead weight pressure gauge tester is based on __________________?
A. Pascal’s law
B. Dalton’s law of partial pressure
C. Newton’s law of viscosity .
D. Avogadro’s hypothesis
E. Second law of thermodynamic
Bernoulli equation deals with the law of conservation of____________________?
A. mass
B. momentum
C. energy
D. work
E. force
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