Questions and answers for exam Preparation

MCQs

Total Questions : 1709 | Page 166 of 171 pages

Question 1651. True one-dimensional flow occurs when___________________?

the direction and magnitude of the veiocity at all points are identical
the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
the magnitude and direction of the velocity do not change from point to point in the fluid
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
velocity, depth, pressure etc. change from point to point in the fluid flow

Discuss Question

Answer: Option A. -> the direction and magnitude of the veiocity at all points are identical
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1652. Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be ___________________?

1000 kg
4000 kg
2000 kg
8000 kg
16000 kg

Discuss Question

Answer: Option A. -> 1000 kg
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1653. Rotameter is a device used to measure____________________?

absolute pressure
velocity of fluid
flow
rotation
velocity of air

Discuss Question

Answer: Option C. -> flow
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1654. Flow of water in a pipe about 3 meters in diameter can be measured by_________________?

orifice plate
venturi
rotameter
pitot tube
nozzle

Discuss Question

Answer: Option D. -> pitot tube
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1655. Gradually varied flow is____________________?

steady uniform
non-steady non-uniform
non-steady uniform
steady non-uniform
true one-dimensional

Discuss Question

Answer: Option D. -> steady non-uniform
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1656. During the opening of a valve in a pipe line, the flow is___________________?

steady
unsteady
uniform
laminar
free vortex type

Discuss Question

Answer: Option B. -> unsteady
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1657. In the case of steady flow of a fluid, the acceleration of any fluid particle is__________________?

constant
variable
zero
zero under limiting conditions
never zero

Discuss Question

Answer: Option C. -> zero
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1658. Non uniform flow occurs when ____________________?

the direction and magnitude of the velocity at all points are identical
the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
the magnitude aricf direction of the velocity do not change from point to point in the fluid
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
velocity, depth, pressure, etc. change from point to point in the fluid flow

Discuss Question

Answer: Option E. -> velocity, depth, pressure, etc. change from point to point in the fluid flow
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1659. Steady flow occurs when____________________?

the direction and magnitude of the velocity at all points are identical
the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
the magnitude and direction of the velocity do not change from point to point in the fluid
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
velocity, depth, pressure, etc. change from point to point in the fluid flow

Discuss Question

Answer: Option B. -> the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 1660. The flow in which each liquid particle has a definite path and their paths do not cross each other is called____________________?