Title: Flow and Level Control Test
Course: Intro to Control Devices (IC 108-IC 108) > Section: Assessments

Q: A conductive probe measurement system uses electrodes suspended in a vessel. It is designed to start a pump at a low level limit and turn the pump off at an high level limit. What is the best description of the system?
- invasive, single-point, indication
- invasive, multipoint, controlling
- noninvasive, multipoint, controlling
- noninvasive, single-point, controlling
A: invasive, single-point, indication

Q: A flow rate that is too high can cause an undesirable _______________.
- pressure
- heat
- both a and b
A: pressure

Q: A hydrostatic head level detector can be used to measure level within a confined and pressurized container.
- True
- False
A: False

Q: A rodgauge provides an inferred measurement for level.
- True
- False
A: False

Q: A sight glass level device is recommended for measuring the level of beer.
- True
- False
A: False

Q: A(n) ___________ level measurement device is typically used when the material which is being detected is corrosive.
- invasive
- noninvasive
A: invasive

Q: As the velocity of the fluid increases, the resistance of the unshielded thermistor sensor head in a thermal flow meter ______________.
- decreases
- increases
- stays the same
A: decreases

Q: Conductive level probes make ___________-type measurements of liquids in a container.
- multipoint
- continuous
A: multipoint

Q: Displacement level sensors are especially appropriate for measuring ___________ -liquid interfaces.
- solid
- liquid
A: solid

Q: Flow rates of solids are determined by measuring the weight on a specified length of a conveyor belt during a given time period.
- True
- False
A: True

Q: Hydrostatic head pressure is at the ___________ of a full tank.
- bottom
- middle
- top
A: bottom

Q: If none of the detectors in a level measurement system are in contact with the measurement material, the system is described as __________.
- displacing
- inferential
- noninvasive
- resistive
A: displacing

Q: If the viscosity of a fluid increases, its ability to flow ___________.
- increases
- decreases
A: increases

Q: In a differential pressure flow meter, the velocity of a fluid leaving the orifice plate is __________ the fluid that approaches it.
- less than
- greater than
- the same as
A: less than

Q: Measurements taken by using the mass flow rate use __________ to determine the reading.
- volume
- weight
A: volume

Q: Positive displacement flow meters are physically rotated by the fluid to develop the readings.
- True
- False
A: True

Q: Positive displacement meters are powered by ______________.
- an external energy source
- the fluid which flows through them
A: an external energy source

Q: Solids that float on liquids are referred to as ____________.
- foam
- bouyants
- slurry
- contaminants
A: foam

Q: The ___________ type of flow meter is the most common type of meter to measure the volume of fluid that flows.
- differential pressure
- positive displacement
- velocity
A: differential pressure

Q: The accuracy of many volumetric flow meters is influenced by changes in the pressure and/or temperature of the measurement fluid. This is because changes in pressure and temperature can change product ____________.
- time constant
- density
- integrity
- pH
A: time constant

Q: The capacitive probe makes _________ measurements.
- point
- continuous
- both a and b
A: point

Q: The differential pressure method takes measurements in a(n) ___________ container.
- open
- pressurized
A: open

Q: The larger the diameter of a pipe, the _____________ the fluid to pass through.
- more difficult it is for
- easier it is for
A: more difficult it is for

Q: The placement of a flow sensor should be ____________ pipeline diameters from a geometric obstruction.
- 1
- 2
- 10
- 30
A: 1

Q: The proportional control technique uses on-off valves to maintain a desired level of an ingredient inside a container.
- True
- False
A: False

Q: Volumetric flow rate of a liquid is doubled by doubling the ___________.
- velocity of the fluid
- area of the pipe
- output of the pump in the system
- any one of the above
A: velocity of the fluid

Q: What type of sensor is used to detect vortices in a vortex flow meter?
- temperature
- pressure
A: temperature

Q: Which of the following quantitative values are used to indicate level?
- height
- percentage
- volume
- weight
A: height

Q: Which of the following terms identify the unit of measurement for flow?
- velocity
- differential pressure
- volumetric flow rate
A: velocity

Q: With an ultrasonic sensor, ___________ is developed at its output when it measures the minimum level.
- 0 mA
- 4mA
- 10 mA
- 20 mA
A: 0 mA