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.Management Sciences
Category: Hydraulics and Fluid Mechanics
In a forced vortex, the velocity of flow everywhere within the fluid is__________________?
A. maximum
B. minimum
C. zero
D. non-zero finite
E. unpredictable
Which of the following instrument can be used for measuring speed of an aeroplane ________________?
A. Venturimeter
B. Orifice plate
C. hot wire anemometer
D. rotameter
E. pitot tube
Two dimensional flow occurs when___________________?
A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
C. the magnitude and direction of the velocity do not change from point to point in the fluid
D. the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
E. velocity, depth, pressure, etc. change from point to point in the fluid flow
Mercury does not wet glass. This is due to property of liquid known as_________________?
A. adhesion
B. cohesion
C. surface tension
D. viscosity
E. compressibility
Kinematic viscosity is dependent upon________________?
A. pressure
B. distance
C. level
D. flow
E. density
Hydrometer is used to determine________________?
A. specific gravity of liquids
B. specific gravity of solids
C. specific gravity of gases
D. relative humidity
E. density
Uniform flow occurs when____________________?
A. the flow is steady
B. the flow is streamline
C. size and shape of the cross section in a particular length remain constant
D. size and cross section change uniform¬ly along length
E. flow occurs at constant fate
Which of the following is the unit of kinematic viscosity _________________?
A. pascal
B. poise
C. stoke
D. faraday
E. none of the above
The time oscillation of a floating body with increase in metacentric height will be________________?
A. same
B. higher
C. lower
D. lower/higher depending on weight of body
E. unpredictable
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to _________________?
A. 1000
B. 2100
C. 2700
D. 10,000
E. 21,000.
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