The two ways you can use to make an informal survey are:
- make field observations
- interview people using informal unstructured techniques
<h3>What are informal surveys?</h3>
In informal surveys can be regarded as a type of survey that can be made by the researcher by going to the field themselves and this can be done by using different methods or ways.
For instance, the researcher can go out to interview people that can give the data that is needed about the research such as informally asking them questions, unstructured techniques can also be used to solve critical issues.
learn more about survey at: brainly.com/question/6947486
#SPJ9
Answer: I am not for sure
Explanation:
Answer:
B.197 gpm and 12.4 L/s
Explanation:
Given that
Load Q = 404.5 KW
Water inlet temperature= 6.1 °C
Water outlet temperature= 13.9°C
We know that specific heat for water

Now from energy balance

by putting the values


(1 Kg/s = 15.85 gal/min)
We can say that
We know that

12.38=1000 x volume flow rate

So
volume flow rate = 12.38 L/s
So the option B is correct.