WorksheetsConfined Spaces Safety Quiz
Total questions: 30
Worksheet time: 15mins
Which of the following best describes a confined space?
Any large open area on a building site
Any place that is substantially enclosed and poses a risk to health
Any outdoor workspace
Any area smaller than 10 square metres
Which of these is NOT an example of a confined space?
Sewer
Storage tank
Open car park
Silo
Which gas is most commonly linked with oxygen depletion in confined spaces?
Carbon dioxide
Nitrogen
Hydrogen
Argon
What is the main danger of working in an area with reduced oxygen?
Eye irritation
Asphyxiation
Noise exposure
Fatigue
Which of the following is a common hazard found in confined spaces?
Fresh air ventilation
Flooding or engulfment
Natural light
Noise from traffic
What should always be done before anyone enters a confined space?
Start work immediately
Test the atmosphere and complete a risk assessment
Switch off all lighting
Wait for supervisor approval only
Which regulation specifically covers working in confined spaces?
Health and Safety at Work Act 1974
Confined Spaces Regulations 1997
Control of Substances Hazardous to Health 2002
Manual Handling Operations Regulations 1992
What is one of the first steps in preparing to work in a confined space?
Ventilating the area and isolating hazards
Entering to check the temperature
Waiting for others to finish
Starting work without PPE
What type of injury could result from a confined space collapse?
Minor bruising
Crushing or trauma injuries
Frostbite
Sunburn
Which of the following gases is highly flammable and poses an explosion risk?
Methane
Nitrogen
Helium
Oxygen
What is the main role of a ‘Topman’ or ‘Attendant’ in a confined space operation?
To monitor conditions and communicate from outside
To operate machinery inside the space
To supervise other workers from a distance
To handle first aid duties only
Why should only trained personnel carry out a rescue?
It saves time
Untrained rescues often lead to more injuries
They have more physical strength
Regulations require at least five people present
What type of system should be used to authorise entry into confined spaces?
Risk card
Permit-to-work system
Daily log book
Staff register
What is one of the responsibilities of employers under the Confined Spaces Regulations 1997?
Provide free lunches
Avoid entry where possible and assess all risks
Allow untrained staff to enter
Provide overtime pay
Which of the following is a key preventative measure?
Ignoring ventilation
Atmospheric testing before and during entry
Entering without equipment
Waiting for symptoms to appear
What should workers do if they detect an unusual smell or feel unwell in a confined space?
Continue working until break time
Leave immediately and report it
Wait for the smell to clear
Remove PPE to check the air
What piece of equipment helps ensure workers can breathe in hazardous atmospheres?
Ear defenders
Breathing apparatus
Safety gloves
Knee pads
Why are communication systems essential in confined spaces?
To improve work speed
To maintain contact with the outside team for safety
To control ventilation manually
To record sound levels
Which factor should always be included in a confined space risk assessment?
The weather and site layout
The worker’s lunch plans
Preferred work hours
Break schedule
What is one of the first actions to take during an evacuation?
Raise the alarm
Wait for a supervisor
Collect tools
Remove PPE
What should a worker never do during an emergency in a confined space?
Use safety harnesses
Attempt a rescue without training
Follow evacuation procedures
Notify the topman
Which physical hazard could occur due to flooding in a confined space?
Drowning
Static shock
Frostbite
Sun exposure
Which of the following can cause oxygen reduction in confined spaces?
Ventilation systems
Combustion or rusting
Strong lighting
Use of power tools
Why must confined space work always be planned and supervised?
To ensure lunch breaks are scheduled
Because conditions can change quickly and become fatal
To reduce paperwork
To avoid the need for training
Which hazard can cause poisoning in confined spaces?
Toxic gases or fumes
Damp clothing
Cold temperatures
Dust particles only
What is the primary duty of the rescue team leader?
To coordinate and manage the rescue operation
To take over the site management
To test the air
To collect PPE
What can psychological stress in confined spaces lead to?
Improved concentration
Claustrophobia and panic attacks
Reduced fatigue
Increased oxygen
Which control measure can reduce fire and explosion risks?
Allowing all ignition sources
Ventilation and isolation of energy sources
Removing all lighting
Using open flames carefully
What must workers do after taking part in an emergency drill?
Record lessons learned and review procedures
Leave site immediately
Ignore the outcome
Continue working without feedback
What is the most important principle when working in confined spaces?
Always rush to complete the task
Safety first – never enter unless it’s absolutely necessary
Always work alone to stay focused
Save time by avoiding checks
