WorksheetsWayward Quiz – Process Instrumentation Part 1 Game
Total questions: 50
Worksheet time: 29mins
Which device is shown?
Pressure Gauge
Thermometer
Voltmeter
Ammeter
Which device is shown?
Temperature Gauge
Pressure Gauge
Voltmeter
Ammeter
How does an electromagnetic flow meter work?
Measures conductive liquid flow using voltage generated in a magnetic field. Works only with conductive liquids (water with ions, etc.).
Measures flow by detecting changes in pressure across a constriction. Can be used with any liquid or gas.
Uses ultrasonic waves to measure the velocity of any fluid, regardless of conductivity.
Measures flow by counting mechanical rotations of a turbine in the fluid stream.
How does a Differential Pressure Cell/Transmitter work for flow? Fill in the blank: It measures the ________ difference across a restriction to calculate flow.
pressure
temperature
voltage
current
How does a Manometer work? Fill in the blank: It measures pressure using a column of ________.
liquid
gas
metal
plastic
How does a Thermocouple work? It measures temperature using two dissimilar ________, generating a voltage.
metals
plastics
liquids
gases
How does a Resistance Temperature Detector (RTD) work? It measures temperature by the change in electrical ________ of a metal.
resistance
capacitance
inductance
conductivity
Which device is shown?
Sight Glass
Pressure Gauge
Thermocouple
Flow Meter
Differential Pressure Cell (Level)
How does it work?
Measures the pressure difference between the top and bottom of a tank to calculate the liquid level. The specific gravity or density of the liquid is used in the calculation.
Measures the temperature difference between the top and bottom of a tank to calculate the liquid level.
Uses ultrasonic waves to directly measure the height of the liquid in the tank.
Calculates the liquid level based on the color of the liquid detected by a sensor.
Float & Displacer Level Devices
How do they work?
Float type: rides the liquid surface; movement is linked to a mechanism or transmitter to indicate level. Displacer type: suspended in liquid; movement is linked to a mechanism or transmitter to indicate level.
Float type: measures temperature changes; Displacer type: measures pressure changes.
Float type: uses electrical conductivity; Displacer type: uses magnetic fields.
Float type: detects color changes; Displacer type: detects sound waves.
Tape Gauge Level Device
How does it work?
Measures liquid level using a tape or cable with a weight lowered into the tank. The distance the tape is lowered corresponds to the liquid level.
Uses a pressure sensor to detect the weight of the liquid and calculate the level.
Employs ultrasonic waves to measure the distance from the sensor to the liquid surface.
Relies on temperature changes to estimate the amount of liquid in the tank.
Bubble System Level Device works by:
Measuring the liquid level using a bubble tube and pressure sensor.
Heating the liquid to detect level changes.
Using ultrasonic waves to detect the liquid level.
Detecting the color change of the liquid.
Installed in a pipe to create a pressure drop for flow measurement. What is it called?
Orifice Plate
Gate Valve
Check Valve
Strainer
Measures flow using a constricted pipe section to create a differential pressure. What is it called?
Venturi Tube
Orifice Plate
Pitot Tube
Rotameter
Measures flow with a streamlined nozzle producing a differential pressure. What is it called?
Flow Nozzle
Venturi Meter
Orifice Plate
Pitot Tube
What does a Pitot Tube measure and how does it work? Fill in the blank: A Pitot Tube measures _______ at a point using _______.
flow velocity; pressure difference
temperature; thermal expansion
pressure; electrical resistance
density; optical refraction
What does a Rotameter measure and how does it work? Fill in the blank: A Rotameter measures _______ of a liquid or gas using a _______ and a _______.
flow rate; vertically mounted tapered tube; float
pressure; horizontal tube; piston
temperature; coiled tube; bulb
density; straight tube; vane
What does a Turbine Flow Meter measure and how does it work? Fill in the blank: A Turbine Flow Meter measures flow by detecting the _______ of a _______ in the flow stream.
rotation; turbine rotor
pressure; diaphragm
temperature; thermocouple
vibration; piezoelectric crystal
What does a Mass Flow Meter (Coriolis) measure and how does it work? Fill in the blank: A Mass Flow Meter (Coriolis) measures _______ by detecting the _______ of a _______ caused by the moving fluid.
mass flow directly; twisting; vibrating tube
volume flow; expansion; rigid pipe
temperature; heating; metal rod
pressure; compression; flexible hose
Vortex Flowmeter: How does it work? Measures flow by detecting ________ shed by a bluff body in the fluid.
vortices
pressure waves
temperature changes
electromagnetic pulses
Ultrasonic level instrument: measures ________ echoed beyond human hearing; simple and cost-effective but affected by temperature, foam, or vapor.
high-frequency sound waves
low-frequency radio waves
infrared light signals
magnetic field strength
Radar level instrument: measures ________ like radio or microwaves; reliable in harsh conditions.
electromagnetic waves
conductivity
infrared light signals
magnetic field strength
pH Meter: How does it work? Measures the ________ ion concentration in a solution.
hydrogen
sodium
chloride
potassium
ORP (Oxidation-Reduction Potential) Meter: How does it work? Measures the ability of a solution to ________ or reduce chemicals.
oxidize
dissolve
evaporate
condense
Conductivity Meter: How does it work? ________ (Fill in the blank with what it measures.)
Measures the electrical conductivity of a solution.
Measures the temperature of a solution.
Measures the pH of a solution.
Measures the pressure of a solution.
Gas/Liquid Chromatograph: How does it work? ________ (Fill in the blank with what it does.)
Separates and analyzes components in gas or liquid mixtures.
Measures the pH of solutions.
Detects radioactive emissions in samples.
Determines the melting point of solids.
Turbidity Meter: How does it work? ________ (Fill in the blank with what it measures.)
Measures cloudiness or suspended solids in a liquid.
Measures temperature of a liquid.
Measures pH level of a liquid.
Measures electrical conductivity of a liquid.
Oxygen (O2) Analyzer: How does it work? ________ (Fill in the blank with what it measures.)
Measures oxygen concentration in gas or liquid streams.
Measures nitrogen concentration in gas or liquid streams.
Measures carbon dioxide concentration in gas or liquid streams.
Measures humidity in gas or liquid streams.
How does a Control Valve work?
A control valve regulates flow, temperature, or level by adjusting the valve opening in response to a controller signal.
A control valve generates electricity by rotating its stem.
A control valve only measures pressure without affecting flow.
A control valve is used solely for decorative purposes in pipelines.
How does a Controller work?
A controller maintains a process variable at a desired setpoint by comparing sensor input and sending signals to a control device (like a valve or actuator).
A controller only measures temperature and displays it on a screen without taking any action.
A controller randomly adjusts process variables without using any sensor input.
A controller is used solely for recording data and does not interact with any control devices.
How is Hydrostatic Pressure calculated?
Pressure in a fluid at rest: P=ρgh, where ρ = fluid density, g = gravity, h = fluid height.
Pressure in a fluid at rest: P=mg/h, where m = mass, g = gravity, h = fluid height.
Pressure in a fluid at rest: P=ρg/h, where ρ = fluid density, g = gravity, h = fluid height.
Pressure in a fluid at rest: P=ρh/g, where ρ = fluid density, h = fluid height, g = gravity.
How is Pressure calculated?
Pressure is force per unit area: P=F/A. It represents how much force is applied over a surface.
Pressure is mass per unit volume: P=m/V. It represents how much mass is contained in a given volume.
Pressure is energy per unit time: P=E/t. It represents how quickly energy is transferred.
Pressure is distance per unit time: P=d/t. It represents how fast something moves.
What is density?
Mass per unit volume of a substance: ρ=m/V
Volume per unit mass of a substance: V=m/ρ
Sum of mass and volume: ρ=m+V
Difference between mass and volume: ρ=m−V
How does a hydrometer work?
It floats in a liquid to measure specific gravity relative to water using a calibrated scale.
It measures temperature changes in a liquid to determine its density.
It uses electrical conductivity to assess the purity of a liquid.
It emits sound waves to calculate the viscosity of a liquid.
What is specific gravity (SG)?
The ratio of a substance’s density to the density of a reference substance (usually water for liquids): SG=ρ substance/ρ water
The sum of a substance’s mass and the mass of water
The difference between a substance’s volume and the volume of water
The product of a substance’s density and the density of water
What is the ideal gas law?
PV=nRT. It relates pressure, volume, and temperature of a gas: changing one affects the others.
E=mc^2. It relates energy and mass: changing one affects the other.
F=ma. It relates force, mass, and acceleration: changing one affects the others.
V=IR. It relates voltage, current, and resistance: changing one affects the others.
Effect of Temperature on Density: How does temperature affect density?
As temperature increases, most liquids and gases expand, causing density to decrease.
As temperature increases, density always increases for all substances.
Temperature has no effect on the density of any material.
As temperature increases, most liquids and gases contract, causing density to increase.
Sensor
What does it do?
Measures a process variable (temperature, pressure, flow, level, etc.) and produces a signal.
Stores process data for long-term analysis.
Controls the final control element directly.
Displays only the setpoint value.
Transmitter
What does it do?
Sends a signal from a sensor to a controller, display, or recorder.
Measures the temperature of the environment.
Stores data for later analysis.
Controls the power supply to the sensor.
Transducer
What does it do?
Converts one type of signal or energy into another (e.g., pressure to electrical signal).
Stores electrical energy for later use.
Amplifies electrical signals without changing their type.
Measures temperature directly without conversion.
Closed Control Loop (feedback)
What are the five main components?
Sensor, Transmitter, Controller, Transducer, and Final Control Element
Sensor, Amplifier, Relay, Switch, and Indicator
Transmitter, Receiver, Processor, Display, and Actuator
Controller, Sensor, Display, Switch, and Relay
Pneumatic means instruments powered by air or gases.
True
False
How is temperature defined, and what are the freezing/boiling points of water? Select all that apply.
Temperature = Specific degree of hotness or coldness on a reference scale
Fahrenheit:
32 °F (freezing)
Fahrenheit:
212 °F (boiling)
Celsius:
0 °C (freezing)
Celsius:
100 °C (boiling)
Pressure increases when molecules move faster.
What is atmospheric pressure at sea level? (a)
Match the following
Direct measurement - (a)
Indirect measurement - (b)
Direct measurement
Indirect measurement
D/P transmitters measure the difference between total pressure and vapor-space pressure
True
False
What are the main process drawings, and which contains the most instrumentation detail?
BFD: Block Flow Diagram
PFD: Process Flow Diagram
P&ID: Piping & Instrumentation Diagram (most detailed instrumentation)
SFD: System Flow Diagram
What are common signal conversions in instrumentation?
E/I: Voltage → Current
E/P: Voltage → Pneumatic
I/E: Current → Voltage
I/P: Current → Pneumatic
P/E → Pneumatic → Electrical
Match the following
LRV:
Lower/Bottom of scale
URV:
Upper/Top of scale
Span:
Difference between URV and LRV
Range:
Values between URV and LRV
Zeroing out:
Adjusting the instrument to zero measure
