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WorksheetsComputer-based Measurement Systems Worksheet
Total questions: 127
Worksheet time: 1hrs 4mins
What is the explanation for the advantage “Data storage & analysis” in computer-based measurement?
Easy to track trends over time
Requires manual calculations for trends
Makes data less accessible
Reduces accuracy of measurements
Limits data to paper records
What does the letter “S” stand for in the mnemonic S.A.A.F.E.?
Sensor
System
Signal
Safety
Fill in the blank: Sensors and computers cost more initially. This is a disadvantage known as ________.
Expensive setup
Low accuracy
Slow operation
Manual labor
What does “Remote monitoring” mean in computer-based measurement?
Systems can be accessed via Internet
Data is stored only locally
Manual intervention is required
Measurements cannot be automated
Only offline access is possible
What does 24/7 Operation mean?
Works continuously without fatigue
Requires frequent manual intervention
Operates only during business hours
Needs regular rest periods
Is limited by human availability
The ______ analyzes or compares data with preset values in a measurement system.
Computer/Processor
Sensor
Transducer
Display
Measurement applications are used when measurements must be taken ________, accurately, and without human involvement.
repeatedly
rarely
randomly
manually
What does the ADC convert in the greenhouse control system?
Signal to digital
Digital to analog
Temperature to humidity
Light to heat
“Environment” refers to a ________ setting such as a greenhouse.
controlled
random
natural
open
Which command word requires you to “Say what and how”?
State
Describe
Explain
Discuss/Evaluate
What is Real-time processing?
System reacts immediately to inputs
System processes data at the end of the day
System stores data for future analysis
System ignores user inputs
The main use case for a hospital measurement system is to ______.
Monitor patients
Schedule appointments
Manage cafeteria services
Organize hospital tours
Example of an automatic washing machine action when water level is full:
Stop water flow when full
Start spinning immediately
Drain water before washing
Increase water temperature
Which sensors are used in a weather station application?
Temperature, humidity, pressure, rain gauge, wind speed
Temperature, moisture, light
Heart rate, temperature
Temperature, water level
What happens if the greenhouse is too cold?
Fan turns ON
Heater turns ON
Sprinkler turns ON
Alarm sounds
“System stops in power failure” is a disadvantage known as ________.
Dependence on electricity
High speed
Accuracy
Cost effectiveness
Which is a benefit of computerized measurement systems?
Manual logging
High precision
Human error
Slow, manual
What does the letter “A” stand for in S.A.A.F.E. (converting signals)?
ADC (Analog to Digital Converter)
Amplifier
Antenna
Analog Switch
Main use case of a greenhouse measurement system:
Grow crops optimally
Monitor animal health
Increase rainfall
Reduce soil erosion
In the memory chart, the conversion process (Analog → Digital) is performed by ________.
ADC
DAC
RAM
ROM
If the greenhouse is too hot:
Fan turns ON
Heater turns ON
Sprinkler turns ON
Alarm sounds
Which command word asks for advantages, disadvantages, and conclusion?
State
Describe
Explain
Discuss/Evaluate
What is a Monitoring system?
Records data but doesn’t take action
Automatically fixes issues
Sends alerts and takes corrective action
Controls all system operations
Measurement applications are ______ systems using sensors to collect and process data.
computer-controlled
manual
mechanical
analog
What does the command word State require?
Give a short fact
Say what and how
Add reason or purpose
Give advantages/disadvantages/conclusion
Conversion from digital to analog is performed by the _______.
DAC
ADC
CPU
RAM
Traditional measurement methods are always constant and reliable.
True
False
What does the temperature sensor measure in a greenhouse system?
Internal air temperature
Soil moisture level
Light intensity
Carbon dioxide concentration
In the memory chart, the device at the input stage is a _______.
Sensor
Actuator
Display
Processor
Correct sequence in a simple measurement system:
Sensor → Processor → DAC → ADC → Actuator
Sensor → ADC → Processor → DAC → Actuator
Sensor → DAC → Processor → ADC → Actuator
Sensor → Actuator → Processor → DAC → ADC
The ______ converts digital output to analog in systems with actuators.
DAC
ADC
Multiplexer
Demultiplexer
The greenhouse control system does not require ______ supervision.
manual
automatic
constant
remote
Which component collects physical data?
ADC
Sensor
DAC
Actuator
In S.A.A.F.E., the letter “A” (operating heater/fan) stands for _______.
Actuator
Airflow
Alarm
Automatic
Automated systems cannot make emotional or moral decisions. This disadvantage is _______.
No human judgment
High cost
Limited memory
Slow processing
One advantage of the greenhouse system is plants stay in ______ condition.
ideal
poor
random
unstable
In computerized measurement systems, data is stored by _______.
Automatic data storage
Manual data entry
Paper records
Voice recording
Correct sequence of components:
Sensor → ADC → Processor → DAC → Actuator → Controlled Device
Sensor → DAC → Processor → ADC → Actuator → Controlled Device
Sensor → Processor → ADC → DAC → Actuator → Controlled Device
Sensor → Actuator → ADC → Processor → DAC → Controlled Device
Advantage related to accuracy:
No human error in measurement
Requires manual calibration
Results are random
Less precise than manual
Depends on weather
“Continuous, fast” describes which aspect of computerized measurement?
Speed
Accuracy
Resolution
Stability
What is a Sensor?
Device detecting physical changes
Battery
Software
Display
ADC stands for Analog to Digital Converter and _______.
It converts analog data to digital form.
It stores digital data.
It processes digital signals.
It displays analog signals.
What is a Control system?
Automatically adjusts environment based on data
Only stores information
Only displays data
Does not interact with environment
Which device is responsible for output actions?
Actuator
Sensor
Transducer
Amplifier
Faulty sensor leads to wrong readings — this is ________.
Sensor malfunction
Power surge
Software update
Network delay
Main use case of a weather station system:
Weather forecasting
Cooking food
Playing music
Driving cars
What is an Actuator?
Device that carries out an action
Sensor
Software
Power supply
Main use case of airport runway measurement system:
Ensure landing safety
Track luggage
Monitor entertainment
Manage restaurants
Purpose of command word Explain:
Short fact
Say what and how
Add reason or purpose
Advantages/disadvantages/conclusion
Which advantage allows instant adjustments or alerts?
Real-time response
Data storage
Manual calibration
Delayed feedback
The greenhouse control system uses energy ______.
efficiently
randomly
wastefully
slowly
What does “Feedback” mean?
Provides information about weather
Adjusts system based on result
Controls environment
Measures temperature
What is a Feedback loop?
Output affects future input decisions
Increases system speed
Stores data permanently
Type of network protocol
The ______ carries out actions like turning heater ON/OFF.
Actuator
Sensor
Transmitter
Controller
Main use case of a car measurement system:
Cruise control
Playing music
AC
Changing tires
Match the terms: Measures temperature → ______.
Sensor
ADC
Actuator
Match the terms: Converts signal to digital → ______.
Sensor
ADC
Actuator
Match the terms: Operates heater/fan → ______.
Sensor
ADC
Actuator
Measured variable in greenhouse control:
Water & temperature
Climate control
Environmental data
Vital signs
Match applications to variables: Vital signs → ______.
Patient monitoring
Greenhouse
Air conditioning system
Weather station
Science lab system
Match applications to variables: Water & temperature → ______.
Patient monitoring
Greenhouse
Air conditioning system
Weather station
Science lab system
Match applications to variables: Climate control → ______.
Patient monitoring
Greenhouse
Air conditioning system
Weather station
Science lab system
Match applications to variables: Environmental data → ______.
Patient monitoring
Greenhouse
Air conditioning system
Weather station
Science lab system
Match applications to variables: Experimental data → ______.
Patient monitoring
Greenhouse
Air conditioning system
Weather station
Science lab system
DAC stands for Digital to Analog Converter and ________.
It converts digital output into analog signals.
Manages data flow
Sends audio signals
Allocates resources
What is Data logging?
Storing measured data over time
Deleting data
Encrypting data
Transmitting data
What is Calibration?
Adjusting sensor to ensure accuracy
Increasing speed
Turning off sensor
Changing sensor color
Sensors used in patient monitoring:
Heart rate, temperature
Light, humidity
Pressure, sound
Motion, vibration
The ______ converts analog signals into digital form.
ADC
DAC
Transducer
Amplifier
An automated assembly line is best described as:
A production process where machines and equipment automatically assemble products with minimal human intervention.
A manual process where workers assemble products by hand.
A system where products are assembled only by robots without supervision.
A process where products are assembled in random order.
Computers are used for stock control in manufacturing because:
They can quickly and accurately track inventory levels.
They can physically move stock items.
They remove the need for all human workers.
They increase stock management costs.
Fill in the blank: The actuator in a control system is an example of ________.
Output
Input
State one advantage of using robots in manufacturing.
They can work continuously without breaks.
They require frequent rest periods.
They are easily distracted.
They only work during daytime.
A car company uses robots for welding. One benefit is:
Increased efficiency and precision
Higher labour costs
Reduced automation
Decreased production speed
Calibration of sensors is important because:
It ensures accurate and reliable measurements.
It increases the size of the sensor.
It makes sensors more expensive.
It reduces maintenance needs.
Which device converts digital signal back to analog?
Computer
DAC
ADC
Sensor
What does 'PLC' stand for and its role?
Programmable Logic Controller – brain of automation.
Power Line Communication – for internet.
Personal Laptop Computer – for personal use.
Process Level Control – controls levels.
What is an example answer for the command word "Describe"?
‘Robots increase accuracy.’
‘Sensors detect position and send data.’
‘Robots increase efficiency because they work continuously.’
‘Automation improves quality but may cause job losses.’
One difference between CAD and CAM is:
CAD is for designing, CAM is for manufacturing.
CAD is for manufacturing, CAM for design.
Both only for design.
Both only for manufacturing.
CAM is defined as:
Use of computer software to control machine tools in manufacturing.
Designing products manually.
Assembling products without technology.
Managing company finances.
Match the command word to its example answer: For the command word State, choose the correct example answer.
One clear fact
Cause/effect shown
Both sides (pros and cons)
Match the command word to its example answer: For the command word Explain, choose the correct example answer.
One clear fact
Cause/effect shown
Both sides (pros and cons)
Match the command word to its example answer: For the command word Discuss/Evaluate, choose the correct example answer.
One clear fact
Cause/effect shown
Both sides (pros and cons)
Process control refers to:
Methods to regulate processes to achieve desired outputs.
Hiring new employees.
Controlling vehicle speed.
Data storage method.
Match the term to its meaning: Actuator
Performs physical actions
Used to maintain control accuracy
Adjustment to maintain accuracy
Match the term to its meaning: Feedback
Performs physical actions
Used to maintain control accuracy
Adjustment to maintain accuracy
Match the term to its meaning: Calibration
Performs physical actions
Used to maintain control accuracy
Adjustment to maintain accuracy
Disadvantages of CAD/CAM include:
High initial cost and need for training
Increased manual labour
Limited design flexibility
Reduced accuracy
Robots are used in car manufacturing to:
Assemble parts and perform repetitive tasks efficiently.
Design new car models.
Drive test cars.
Sell cars.
State one disadvantage of robots in factories.
Can lead to job losses.
Always increases pollution.
Guarantees defects.
Reduces safety.
Computer-controlled manufacturing produces consistent products because:
Machines follow precise instructions every time.
Manual labour causes variability.
Materials are identical.
Humans check all products.
The function of a feedback loop is:
Compare output with target values for adjustment.
Increase process speed.
Remove need for monitoring.
Prevent all changes.
Match the component to its role: ADC
Converts analog to digital
Detects data
Converts digital to analog
Moves/controls mechanism
Processes data
Match the component to its role: Sensor
Converts analog to digital
Detects data
Converts digital to analog
Moves/controls mechanism
Processes data
Match the component to its role: DAC
Converts analog to digital
Detects data
Converts digital to analog
Moves/controls mechanism
Processes data
Match the component to its role: Actuator
Converts analog to digital
Detects data
Converts digital to analog
Moves/controls mechanism
Processes data
Match the component to its role: Computer
Converts analog to digital
Detects data
Converts digital to analog
Moves/controls mechanism
Processes data
Fill in the blank: The sensor in a control system is used for _______.
Feedback
Power
Actuation
Programming
What is the role of the Input component?
Sensor
Actuator
Controller
Display
Meaning of “Sensor” in manufacturing:
Detects environmental data.
Controls speed.
Stores products.
Manages schedules.
What processing is used in manufacturing control systems?
Real-time processing
Batch
Manual
Offline
Batch production is:
Manufacturing in groups or batches.
One product at a time.
Made only after orders.
Uninterrupted flow.
Computer-based manufacturing systems are safer because:
Reduce human exposure to danger
Need more manual labour
Increase risk
Require workers to operate heavy machines
CAD–CAM integration means:
CAD designs are used directly by CAM to automate manufacturing.
Used separately
CAM creates designs
CAD only for marketing
Purpose of sensors in manufacturing:
Monitor and collect data
Increase labour
Reduce automation
Remove machines
Examples of ICT helping quality:
Sensors for real-time monitoring & automated defect detection
Manual inspection
Hiring more workers
Reducing technology use
ICT controls chocolate mixing temperature by:
Using sensors and automated adjustments
Manual checks
Feeling temperature
Ignoring temperature
ICT supports environmental sustainability by:
Efficient resource management & reducing waste
Increasing energy use
Using non-renewable resources
Increasing pollution
Automated packaging robots impact productivity and employment by:
Increase productivity but may reduce employment
Decrease productivity
No effect
Increase both equally
Safety & quality benefit of automation:
Reduces human error & improves consistency
Increases manual intervention
Decreases monitoring
More breakdowns
Examples of industries using ICT:
Automobile and electronics
Textile and agriculture
Fishing and mining
Forestry and tourism
Benefit of using a microprocessor:
Increased automation and efficiency
More manual work
Slower production
Reduced accuracy
Device converting a signal to digital:
DAC
Actuator
ADC
Sensor
Advantage of real-time feedback:
Immediate correction of errors
More workers needed
Slower production
Less quality control
Meaning of CAD:
Computer-Aided Design – used to draw 3D models.
Accounting database
Assistance desk
Developer certification
Robots are more efficient because:
They do not get tired or bored.
Make creative decisions
Need breaks
Have emotions
Fill in the blank: The _______ compares with the preset value.
Computer
Sensor
Actuator
Transmitter
One role of robots in quality control is:
Inspecting products for defects
Packaging goods
Transporting materials
Assembling components
Role of ADC and DAC:
Convert analog↔digital for control and monitoring
Store data
Provide movement
Generate power
Actuators are used to:
Control and move mechanical systems
Store materials
Design blueprints
Measure temperature
Barcodes support manufacturing by:
Quick, accurate tracking of products
Increasing paperwork
Slowing inventory
Making identification harder
A feature of monitoring systems is:
Real-time data collection
Manual assembly
Increased weight
Less training
Output devices in automated manufacturing:
Actuators and motors
Sensors and cameras
Keyboards and monitors
Microphones and speakers
Example of an input component:
Temperature or pressure sensor
Electric motor
Conveyor belt
Display
What does the command word “State” require?
Add cause/effect
Say what happens
One clear fact
Give pros/cons
One ethical concern of automation:
Job displacement
More manual labour
Reduced quality
Higher cost
ICT ensures safety in automation by:
Monitoring and controlling machinery to prevent accidents
Increasing manual labour
Reducing safety protocols
Ignoring system errors
