Civil Engineering - UPSC Civil Service Exam Questions - Discussion

48. 

In the set up shown in the above figure, assuming the specific weight of water as 10, 000 N/m3, the pressure difference between the points A and B will be

[A]. 10 N/m2
[B]. - 10 N/m2
[C]. 20 N/m2
[D]. -20 N/m2

Answer: Option B

Explanation:

No answer description available for this question.

Hema N said: (Aug 28, 2017)  
Pressure due to water=10000*1*9.81*0.05 = 490.5.
Pressure due to oil=10000*0.98*9.81*0.05 = 480.5.
Diff=480.5-490.5 = -10.

Jinish said: (Jan 20, 2020)  
Pressure = density * gravity * height.

Amit Singh said: (Jan 31, 2021)  
Pa-1 * 10000 * 50 * 10^(-3)-0.98 * 10000 * 50 * 10^(-3) = Pb-1 * 10000 * 100 * 10^(-3).
Pa - Pb = -10.

Lalit Kumar said: (Mar 11, 2021)  
Pressure due to water=10000*1*0.05 = 500,
Pressure due to oil=10000*0.98*0.05 = 490,
Diff=490-500 = -10.
It is already a specific weight no need to multiply by 9.81.

Divesh Kumar said: (Sep 5, 2021)  
Pa-10000 *.050-.98 * 10000 * .050 = Pb-10000 * .100.

Pa-Pb = 500+490-1000.
Pa-Pb = -10N/m^2.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.