FLOW MEASUREMENT

Which of the following flow-measuring elements is inherently linear and requires no signal characterization (e.g. sqaure-root extraction) anywhere in the loop?

• Orifice plate

• Pitot tube

• Turbine

Bernoulli’s Equation is a mathematical expression of:

• (A) The ratio of kinetic to viscous forces in a flow stream

• (B) Friction loss as fluid moves through a rough pipe

• (C) Potential and kinetic energies in a flow stream

As an incompressible fluid moves through a restriction,

• Velocity increases and pressure increases

• Velocity increases and pressure remains the same

• Velocity increases and pressure decreases

For accurate operation, orifice plate flowmeters require:

• (A) Laminar flow

• (B) Fully-developed turbulent flow

• (C) Swirls and eddies in the flow stream

A magnetic flowmeter will not properly measure the flow rate of:

• (A) Dirty water

• (B) Milk

• (C) Oil

Identify which of the following flowmeters inherently measures mass flow rate:

• (A) Thermal

• (B) Magnetic

• (C) Flow nozzle

The rate at which fluid flows through a closed pipe can be determined by

• A. Determining the mass flow rate

• B. Determining the volume flow rate

• C. Either (a) or (b)

Conveyor-based methods is used for the measurement of the flow of

• A. Solids

• B. Liquid

• C. Gas

For the measurement of flow rate of liquid, the method used is

• A. Conveyor-based methods

• B. Bourdon tube

• C. Coriolis method

The devices used for flow obstruction is/are

• Venturi tube

• Flow nozzle and dall flow tube

• All of these