Flow of water in a pipe about 3 meters in diameter can be measured by
A. orifice plate
B. venturi
C. rotameter
D. pitot tube
Answer: Option D
Solution (By Examveda Team)
Flow measurement in large diameter pipes, such as a 3-meter diameter water pipe, requires devices that can handle high flow rates and provide accurate readings with minimal energy loss.An orifice plate causes significant head loss and is more suitable for smaller pipes.
A rotameter is typically used for low flow rates and smaller pipe diameters in vertical applications.
A pitot tube can measure velocity at a point but is not practical for measuring total flow in such a large pipe.
The venturi meter is specifically designed to measure flow in large pipes. It operates on the principle of pressure differential and causes minimal energy loss.
Therefore, for a pipe about 3 meters in diameter, the most suitable device is the venturi meter.
Correct answer is Option B: venturi
This Question Belongs to Civil Engineering >> Hydraulics And Fluid Mechanics
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Comments (7)
A. 22.5 m/sec.
B. 33 m/sec.
C. 40 m/sec.
D. 90 m/sec.
A. the weight of the body
B. more than the weight of the body
C. less than the weight of the body
D. weight of the fluid displaced by the body
The difference of pressure between the inside and outside of a liquid drop is
A. $${\text{p}} = {\text{T}} \times {\text{r}}$$
B. $${\text{p}} = \frac{{\text{T}}}{{\text{r}}}$$
C. $${\text{p}} = \frac{{\text{T}}}{{2{\text{r}}}}$$
D. $${\text{p}} = \frac{{2{\text{T}}}}{{\text{r}}}$$
A. cannot be subjected to shear forces
B. always expands until it fills any container
C. has the same shear stress.at a point regardless of its motion
D. cannot remain at rest under action of any shear force
Cram kro
. pitot tube
Rotameter correct.
Plz provide correct option.
Correct answer is rota meter.
With the help of pitot tube we measure the velocity and as diameter of pipe is known we find area. Multiply velocity and area to get flow rate in metre cube per second. If you want in kg/sec multiply discharge with density of water . Rotameter requires float and tube but such size of tube and rotameter is not economical to construct. Orifice meter consists of plate with hole but it is not economical to have a 3 meters dia orifice plate .by considering the above pitot tube is considered to be most economical
correct answere is Rotameter because pitot tube is use for velocity measurment in small pipes.
Plz provide the actual reason that why only Pitot Tube ?