Given:
size of scale model = 4(size of pump)
power ratio of pump and scale model = 5:1
Solution:
Let the diameter of scale model and pump be 
and 
respectively
and head be 
and 
respectively
Now, power, P is given as a function of head(H) and dischagre(Q)
P = 
(1)
From eqn (1):
and
So,
Therefore,
= 
=
= 
= 
= 
Answer:
False
Explanation: There is no reason to believe that it will spread to gasoline engines and carbon dioxide emissions, which are considered a prime cause of climate change. It scandal was specifically concerned with diesel engines as volkswagen during the year 2015 had a major push and requirement to sell diesel cars in the US, the requirement was backed by a huge marketing campaign advertising its cars' low emissions.
The issue was discovered by the Environmental protection agency of the United States of America and Volkswagen has taken reasonable precautions and responsibilities for their Emission cheats.
2.31 ft/psig
1.98 psig would equalize feet of head 4’7”
4.583/2.31 = 1.98. .583 is 7”/12”
So round off to 2.0 psig to get steady stream of bubbles
search it and you will get on internet
