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.Management Sciences
Category: Fluid Mechanics
The continuity equation is connected with__________________?
A. viscous/unviscous fluids
B. compressibility of fluids
C. conservation of mass
D. steady/unsteady flow
E. open channel/pipe flow
The density of water is 1000 kg/m3 at__________________?
A. 0°C
B. 0°K
C. 4°C D. 20°C
E. all temperature
A balloon lifting in air follows the following principle_____________________?
A. law of gravitation
B. Archimedes principle
C. principle of buoyancy
D. all of the above
E. continuity equation
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water________________?
A. 51 cm
B. 50 cm
C. 52 cm
D. 52.2 cm
E. 51.7 cm
Manometer is used to measure__________________?
A. pressure in pipes, channels etc
B. atmospheric pressure
C. very low pressure
D. difference of pressure between two points
E. velocity
For measuring flow by a venturimeter, if should be installed in __________________?
A. vertical line
B. horizontal line
C. inclined line with flow downward
D. inclined line with upward flow
E. in any direction and in any location
Flow occurring in a pipeline when a valve is being opened is________________?
A. steady
B. unsteady
C. laminar
D. vortex
E. rotational
The property of a fluid which enables it to resist tensile stress is known as___________________?
A. compressibility
B. surface tension
C. cohesion
D. adhesion
E. viscosity
Center of buoyancy is the___________________?
A. centroid of the displaced volume of fluid
B. center of pressure of displaced volume
C. e.g. of floating ‘body
D. does not exist
E. none of the above
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