Answer the questions for orifice system having the equation $($Q$=$k D$^$n$)$ using statistical experimental design. $($table $7\mathrm{.}10\mathrm{.}3)$

Size Reduction

Table $7\mathrm{.}10\mathrm{.}3.$ Checklist for experimentation $[1].$

Statement of Objectives

Why will this experiment be carried out? What questions will be answered by the experiment?

What are the consequences of a failure to find an effect or to claim one when it does not exist?

What is the experimental space to be covered?

What is the time schedule?

What is the allowable cost?

What previous information is there about the experiment or its results?

Is an optimum among the variables sought or only the effect of the variables?

Type of Model$($s$)$ to be used

Will empirical or transport phenomena models be used?

Is the form of the model correct or is the form to be determined?

What will be the independent and dependent variables?

Experimental Program

What are the variables to be measured? How will they be measured and in what sequence?

Which variables are initially considered most important? Which least important? Can the desired effect be detected?

What extraneous or disturbing factors must be controlled, balanced or minimized?

What kind of control of the variables is desirable?

Are the variables independent or functions of other variables?

How much dispersion can be expected in the test results? Will the dispersion be different at different levels of the variables?

Replication and analysis

What is the experimental unit and how are the experiments going to be replicated; all at once, sequentially, or in groups?

What are the number and type of tests to be carried out? How are the data going to be analyzed and interpreted?