Question

In the case of Rota meter, which is used for measuring the water flow rate?

(a) Only one variable is involved, i.e. independent variable (the Rota meter reading)

(b) Only two variables are involved: one independent variable(the Rota meter reading) and one dependent variable (the water flow rate)

(c) Only two variables are involved: one independent variable(the water flow rate) and one dependent variable (the Rota meter reading)

(d) Only one variable is involved, i.e. independent variable (the water flow rate)

This question was posed to me in class test.

This interesting question is from Data Analysis topic in section Presentation and Analysis of Data of Bioprocess Engineering

Answer 1

Correct answer is (b) Only two variables are involved: one independent variable(the Rota meter reading) and one dependent variable (the water flow rate)

Explanation: Rota meter is a device which measures flow rate. This is done by allowing the cross-sectional area the fluid travels through to vary, causing a measurable effect, i.e. water flow rate is dependent on Rota meter.