WorksheetsModule 9 – Mechatronics (Q1–Q10)
Total questions: 70
Worksheet time: 35mins
In an automated UK packaging line, boxes are lifted onto a conveyor using a pulley system. What is the main advantage of using a pulley here?
It increases the box weight to improve grip
It reduces the effort force required to lift the load
It converts rotary motion into linear motion
It eliminates friction in the lifting mechanism
Which best describes a transducer in a mechatronic system?
A device that only amplifies electrical signals
A mechanical linkage used to change direction of motion
A device that converts one form of energy or signal into another
A software routine used to convert digital data to analogue
A thermostatically controlled soldering iron uses a thermistor to sense tip temperature. In this application, the thermistor is acting as:
An actuator
A sensor
A microcontroller
A power supply
Which statement about actuators in mechatronic systems is correct?
They convert mechanical motion into electrical energy only
They convert electrical/electronic or mechanical signals into physical movement
They always generate rotary motion
They can only be used in open-loop systems
A powered gate at a UK manufacturing site closes automatically when a proximity sensor detects a vehicle has passed. Which combination best describes the system elements?
Motor = sensor, proximity switch = actuator
Proximity switch = controller, motor = sensor
Proximity switch = sensor, motor = actuator
Both motor and proximity switch are actuators
Which of the following is an example of a first-class lever used in UK engineering maintenance?
A wheelbarrow used to move materials
A car door being opened
A set of pliers used to grip a component
A fishing rod being cast
Which lever type is correctly matched with its typical example?
First-class lever – wheelbarrow
Second-class lever – car door
Third-class lever – scissors
Second-class lever – fishing rod
In a robot gripper system, which change is most likely to improve precision of movement without changing the actuator?
Using a finer-pitch leadscrew in the mechanical linkage
Increasing the current rating of the power supply only
Replacing the sensor with a simple on/off switch
Removing feedback to simplify the system
A UK warehouse uses automated guided vehicles (AGVs) that navigate using sensors and respond to commands from a central computer. How is mechatronics helping this system?
By removing the need for mechanical components
By integrating mechanical, electrical and control elements into one system
By replacing all sensors with manual switches
By ensuring the vehicles use only hydraulic power
Why must mechatronics engineers have good problem-solving skills, according to the Core text?
To perform manual machining operations
To design and troubleshoot complex integrated systems
To carry out financial audits
To produce legal contracts for component suppliers
In a block diagram of a heating system, which block is most likely to represent the process?
Room temperature set-point dial
Thermostat sensor
Boiler and radiators
Error (difference) calculation
Which diagram type shows the physical wiring layout of components for a control panel in a UK factory?
Block diagram
Schematic diagram
Wiring diagram
Flow chart
A liquid-level control system uses a float switch and a pump. The pump turns on when the level is low and off when the tank is full. What type of control is this?
Proportional control
On–off control
Feedforward control
Derivative control
Pulse-width modulation (PWM) is particularly useful in control of:
AC mains frequency
Motor speed or power in DC drives
Mechanical leverage ratios
Hydraulic pressure in fixed-displacement pumps
A sensor measures the speed of a conveyor and feeds it back to a controller that adjusts motor voltage. In the block diagram, where is the summing point located?
Between controller and actuator
Between set-point and feedback signals
Between actuator and process
Between process and output display only
Which is an advantage of using electrical control systems in UK manufacturing?
They cannot be networked
They allow accurate temperature, flow or pressure control using sensors and actuators
They avoid all safety legislation
They do not require any maintenance
Hydraulic control systems are commonly used on aircraft landing gear in UK aerospace. Why is hydraulics suitable here?
It uses only compressed air
It generates large forces using relatively compact actuators
It eliminates the need for any sensors
It operates only at low pressures
Which statement best describes a fluid power control system?
A system that uses light signals to transmit power
A system that uses a fluid (liquid or gas) as the power transmission medium
A system that can only use hydraulic oil
A system that does not require valves
A safety interlock on a CNC machine stops the spindle if a guard is opened. In control-system terms this interlock is:
An actuator
Part of the feedback path only
An input device providing a safety signal
A process block
In a UK precision machining company, which is the best definition of quality in line with the Core text?
Producing components at the lowest possible cost
Meeting or exceeding customer requirements and expectations
Maximising production speed
Eliminating all paperwork
Scrap and rework are examples of:
Prevention costs
Appraisal costs
Internal failure costs
External failure costs
A returned batch of components from a UK customer due to dimensional errors is best described as:
Prevention cost
External failure cost
Appraisal cost
Opportunity cost only
Which of the following is a prevention activity in a quality-management system?
Final inspection only
Calibration of measuring equipment and operator training
Sorting defective parts from good parts
Handling customer complaints
Why is statistical process control (SPC) used in UK manufacturing?
To remove the need for any measurement
To monitor process variation using data and control charts
To guarantee zero defects without further action
To replace all operator skills with automation
A company introduces a system where all employees suggest small, regular improvements to their work area. Which quality approach does this most closely reflect?
One-off large projects only
Total quality management (TQM)
External auditing only
Emergency response planning
Which is a likely benefit of a good quality-management system for a UK engineering firm?
Increased scrap and rework
Higher customer satisfaction and repeat business
Reduced process understanding
Longer lead times
Which activity is most clearly appraisal cost?
Inspecting incoming materials and finished parts
Designing robust products from the start
Handling returns and legal claims
Training operators in mistake-proofing
Why is documentation (e.g. procedures, work instructions) important in quality management?
It increases variation between operators
It ensures consistent methods and traceability
It removes the need for training
It replaces all forms of measurement
A fishbone (Ishikawa) diagram is used in a UK automotive plant to investigate paint defects. What is its primary purpose?
To schedule maintenance activities
To identify and group possible causes of a problem
To calculate process capacity
To record financial transactions
In the UK, which piece of legislation places the general duty on employers to ensure, as far as is reasonably practicable, the health, safety and welfare of employees?
Control of Substances Hazardous to Health Regulations
Provision and Use of Work Equipment Regulations
Health and Safety at Work etc. Act 1974
Reporting of Injuries, Diseases and Dangerous Occurrences Regulations
Which statement best distinguishes a hazard from a risk?
Hazard and risk mean the same thing
Hazard is the chance of harm; risk is the thing that could cause harm
Hazard is anything with potential to cause harm; risk is the likelihood and severity of that harm
Hazard only applies to chemical substances
Which step would normally come first in a formal risk assessment in a UK engineering workshop?
Evaluate the risks and decide on precautions
Review and update the assessment
Record the findings
Identify the hazards
Which control measure is highest in the hierarchy of control described in the Core text?
Issuing PPE only
Substituting a less hazardous substance
Eliminating the hazard entirely
Providing warning signs
An engineer cleans a solvent spill in a UK factory wearing gloves and goggles and using absorbent granules. These measures are mainly:
Elimination controls
PPE and safe working procedures
Design controls
Legal controls only
Which situation must be reported under RIDDOR according to the Core text?
A near miss with no injury
A minor paper cut treated with a plaster
A specified injury requiring more than seven days off work
Any machine breakdown
In a UK factory, COSHH primarily covers:
Manual handling techniques
Use of electrical equipment
Control of substances hazardous to health
Use of lifting equipment
Why is lock-off/tag-off important before maintaining a machine?
It speeds up production
It ensures the machine is energised during work
It isolates energy sources to prevent unexpected start-up
It is only required for administrative reasons
A blue mandatory sign in a UK workshop most likely indicates:
Information only
Prohibition
Warning of danger
An action that must be carried out (e.g. wear eye protection)
Why is worker involvement in health and safety important in engineering workplaces?
It replaces the need for management responsibility
Workers are responsible for writing UK legislation
Workers are often closest to the hazards and can suggest practical controls
It is only needed for legal defence in court
A small UK engineering firm is owned and run by one person who takes all the profit. Which business structure does this best describe?
Partnership
Sole trader
Private limited company
Public limited company
Which of the following is a stakeholder in a UK engineering company?
Only the company’s directors
Only the shareholders
Any individual or group affected by or interested in the company’s activities
Only customers
A component manufacturer sells parts for £15 each. The variable cost per unit is £9 and fixed costs are £30,000 per year. What is the contribution per unit?
£6
£9
£15
£21
Which statement best describes break-even point?
When sales are highest
When total revenue equals total costs
When variable costs are zero
When profit is maximised
Why is cash-flow important for a UK engineering SME?
It is only relevant for large PLCs
It ensures there is enough money available to pay suppliers and wages on time
It increases the physical stock of materials
It removes the need for budgeting
Which is an example of a fixed cost for a machining company?
Cutting fluid usage per component
Raw material for each job
Machine operator hourly wages directly related to output
Factory rent
A UK engineering company sources components from a single overseas supplier. What is a risk of this supply-chain strategy?
Reduced dependency on any supplier
Increased resilience to disruption
Vulnerability if that supplier has delivery problems
Elimination of quality issues
Which factor is most likely to improve productivity in a CNC machining cell?
Increasing downtime for unplanned maintenance
Improving set-up times and reducing changeover delays
Reducing operator skills
Increasing scrap rate
Why might a UK engineering firm invest in automation despite high initial cost?
To guarantee zero defects without further work
To reduce long-term labour costs and increase consistency and throughput
To reduce flexibility permanently
To eliminate the need for training
Which best describes added value in a manufacturing context?
Total cost of raw materials
Difference between the selling price of a product and the cost of inputs
Total number of employees
Quantity of waste produced
Why is reputation important for a UK engineering company, according to the Core text?
It has no effect on customer decisions
It only affects internal staff morale
It influences customer trust, future business and share price
It is only important for start-up companies
Which statement best describes ethics in engineering?
Only following company rules to avoid punishment
The moral principles that guide how individuals and organisations behave
Always maximising profit regardless of impact
Only complying with legal minimum standards
A job description for a maintenance technician normally includes:
The company’s annual profit
Detailed design drawings of every product
Main roles, responsibilities, required qualifications and experience
Names of all past employees
Why is accountability important within an organisational structure?
It allows workers to avoid responsibility for mistakes
It ensures everyone knows who is responsible for performance and decisions
It is only needed in very small companies
It removes the need for supervision
Which is an example of continuous professional development (CPD) for an engineer?
Ignoring new standards
Attending a technical training course on new welding procedures
Refusing to share knowledge with colleagues
Reducing competence over time
Under equality and diversity duties, which statement is most accurate?
Employers must favour one protected characteristic over others
Employers should prevent discrimination based on protected characteristics such as age or disability
Equality law only applies to recruitment
Diversity means everyone must have identical backgrounds
Which is a physical characteristic relevant to workplace design?
Problem-solving ability
Reading skill
Height and reach of workers
Personal interests
Good workplace design in a manufacturing hall can improve safety by:
Crowding machines close together
Ensuring adequate space between machines and clear walkways
Removing all signage
Banning all break areas
Which is one cause of human error highlighted in the Core text?
Adequate training
Fatigue due to long working hours
Clear procedures
Appropriate staffing levels
Why should less experienced engineers in a UK factory seek advice from more experienced colleagues?
To avoid following safety procedures
To reduce teamwork
To help develop their knowledge and skills safely
To bypass their line manager
Which is another word for stock used in the Core text?
Equity
Inventory
Turnover
Dividend
Which type of stock is best described as “the basic materials from which products are made”?
Work in progress
Consumables
Raw materials
Finished goods
A UK electronics plant keeps spare fuses, cleaning materials and lubricants. These are examples of:
Finished goods
Raw materials
Consumables / MRO items
Work in progress
Which cost is not normally a direct stock-related cost?
Purchase cost
Ordering cost
Holding (carrying) cost
Employee income tax
(Stock & assets) What is one advantage of using barcodes on stock items?
They prevent theft
They allow quick, accurate data entry and stock tracking
They eliminate the need for staff
They guarantee zero defects
(Stock & assets) A pick-to-light system used in a UK warehouse directs an operator to the correct bin by switching on a light. This is mainly intended to:
Increase walking distance
Slow down picking
Reduce picking errors and improve efficiency
Remove all training needs
(Stock & assets) When disposing of a set of electronic scales, which legislation should be followed according to the Core text?
COSHH
RIDDOR
WEEE Regulations
PUWER
(Stock & assets) If a forklift truck cost £50,000 new and depreciates at 15% per year, what is the main reason a company tracks this depreciation?
To monitor asset value and plan replacement
To increase its physical performance
To reduce safety checks
To hide costs from auditors
(Stock & assets) Capacity management for a small engineering firm receiving a large order might involve:
Ignoring delivery dates
Considering extra staff, overtime or additional shifts
Reducing available machine time
Cancelling existing orders
(Continuous improvement) Which phrase best captures the idea of continuous improvement in the Core text?
One large improvement project every ten years
Ongoing, incremental improvements to processes and systems
Only reacting after a major failure
Changing processes randomly
(Continuous improvement) Which cycle is commonly used as a framework for continuous improvement?
Plan–Do–Check–Act (PDCA)
Measure–Market–Sell–Review
Design–Finance–Advertise–Dispose
Write–Test–Ignore–Repeat
