wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A 2 km pipe of 0.2 m diameter connects two reservoirs. The difference between the water levels in the reservoir is 8 m. The Darcy Weisbach friction factor of the pipe is 0.04. Accounting for frictional entry and exit losses. The velocity in the pipe in (m/sec) is

A
0.63
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
0.35
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
2.52
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
1.25
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 0.63
Frictional loss,

hf=fLV2d×2g

Loss of head at entrance,

hL=0.5V22g

Loss at exit of pipe,

hc=V22g

8=fLV2d×2g+0.5V22g+V22g

8=0.04×2000×V22×g×0.2+V22g+0.5V22g

8=20.3873 V2+0.07645 V2

V=0.625 m/s

0.63 m/s

flag
Suggest Corrections
thumbs-up
0
similar_icon
Similar questions
View More
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Combined Losses
FLUID MECHANICS
Watch in App
Join BYJU'S Learning Program
CrossIcon