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A. 10 kg
B. 100 kg
C. 1000 kg
D. 1 kg
E. 10,000 kg
Answer
Answer
A. 10 kg
Submitted by: Engr. Abdul Hafeez
For pipes, turbulent flow occurs when Reynolds number is_________________?
A. less than 2000
B. between 2000 and 4000
C. more than 4000
D. less than 4000
E. none of the above
Answer
Answer
C. more than 4000
Submitted by: Engr. Abdul Hafeez
The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to________________?
A. 1 Pa
B. 91Pa
C. 981 Pa
D. 9810 Pa
E. 98,100 Pa
Answer
Answer
D. 9810 Pa
Submitted by: Engr. Abdul Hafeez
In order that flow takes place between two points in a pipeline, the differential pressure between thes^ points must be more than_________________?
A. frictional force
B. viscosity
C. surface friction
D. all of the above
E. none of the above
Answer
Answer
D. all of the above
Submitted by: Engr. Abdul Hafeez
A large Roynold number is indication of_________________?
A. smooth and streamline flow
B. laminar flow
C. steady flow
D. turbulent flow
E. highly turbulent flow
Answer
Answer
E. highly turbulent flow
Submitted by: Engr. Abdul Hafeez
Reynolds number is significant in____________________?
A. supersonics, as with projectile and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D. all of the above
E. none of the above
Answer
Answer
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc
Submitted by: Engr. Abdul Hafeez
Froude number is significant in____________________?
A. supersonics, as with projectile and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D. all of the above
E. none of the above
Answer
Answer
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
Submitted by: Engr. Abdul Hafeez
The equation of continuity holds good when the flow __________________?
A. is steady
B. is one dimensional
C. velocity is uniform at all the cross sec-tions
D. all of the above
E. none of the above
Answer
Answer
D. all of the above
Submitted by: Engr. Abdul Hafeez
According to Bernoulli’s equation for steady ideal fluid flow_______________?
A. principle of conservation of mass holds
B. velocity and pressure are inversely proportional
C. total energy is constant throughout
D. the energy is constant along a stream-line but may vary across streamlines
E. none of the above
Answer
Answer
D. the energy is constant along a stream-line but may vary across streamlines
Submitted by: Engr. Abdul Hafeez
Mach number is significant in___________________?
A. supersonics, as with projectiles and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls
D. all of fhe above
E. none of the above
Answer
Answer
A. supersonics, as with projectiles and jet propulsion
Submitted by: Engr. Abdul Hafeez