CAL 101

Which of the following is NOT a type of meter used to measure water flowrates?

• velocity meters

• displacement or volumetric meters

• electromagnetic meters

• sphygmomanometer

Which of the following is a type of displacement (volumetric) meter?

• single jet meters

• multiple jet meters

• oscillating piston meters

• electromagnetic meters

Which of the following meters may be most affected by the velocity profile?

• single jet meters

• multiple jet meters

• oscillating piston meters

• Woltmann (vertical) meters

Which of the following meters may be most affected by hard waters or those with suspended solids?

• single jet meters

• multiple jet meters

• oscillating piston meters

• Woltmann (vertical) meters

Which of the following meters may be most affected by installation orientation?

• single jet meters

• oscillating piston meters

• Woltmann meters

• electromagnetic meters

Which of the following meters operate based on Faraday’s law?

• single jet meters

• oscillating piston meters

• Woltmann meters

• electromagnetic meters

True or False: Multiple jet meters have lower starting flowrates as well as better accuracy at low flowrates than single jet meters.

• True

• False

True or False: Laminar flows are smooth and streamlined, whereas turbulent flows are irregular and chaotic.

• True

• False

True or False: The velocity profile indicates the direction of the velocity as a function of position.

• True

• False

Answer explanation

The velocity profile indicates the magnitude of the velocity as a function of position.

True or False: Transitional flowrate is the lowest flowrate at which the meter is to operate within the maximum permissible errors.

• True

• False

Answer explanation

Minimum flowrate is the lowest flowrate at which the meter is to operate within the maximum permissible errors.