Which of the following instruments is used to measure the flow rate of a liquid?
A. Thermocouple
B. Manometer
C. Rotameter
D. Hygrometer
Answer:C
Which of the following instruments is used to measure the flow rate of a liquid?
A. Thermocouple B. Manometer C. Rotameter D. Hygrometer
Explanation: A rotameter is a device used to measure the flow rate of liquids and gases. It consists of a tapered tube and a float that moves up and down the tube based on the flow rate.