WorksheetsUnit 105 Confined space
Total questions: 26
Worksheet time: 13mins
According to the session overview, what is the primary reason for learning about safe methods in service identification, protection, commissioning, and decommissioning?
To speed up project completion regardless of risk
To reduce dangers in the construction industry
To avoid purchasing new tools
To eliminate the need for supervision
Which topics are explicitly included in the session’s safe methods focus? Select all that apply.
Identification of services
Protection of services
Commissioning and decommissioning of services
Marketing of construction firms
Interior decoration choices
What is a stated consequence of failing to follow guidelines when working on site?
Minor delays only
Higher material costs
Accidents and even fatalities
Temporary license suspension only
The session overview links accident prevention most directly to which practice?
Using any available shortcut
Following guidelines and safe work methods
Relying solely on personal experience
Delegating safety to subcontractors
Which statement best completes the definition of a confined space in construction?
It is large enough to enter, has restricted entry or exit, and is not designed for continual occupancy.
It is small, fully sealed, and always requires breathing apparatus.
It is any outdoor area with limited lighting and poor ventilation.
It is any space that requires a permit to work regardless of conditions.
Which characteristic is required for a space to be considered a confined space?
It allows unrestricted movement in and out at all times.
It is designed for people to live in long-term.
It has limited or restricted means for entry or exit.
It must be underground.
Which pair lists two requirements of a safe system of work in confined spaces?
Safe access and safe egress
Free access and unsecured exits
Random entry and supervised exit
Unplanned entry and controlled exit
According to the safe system of work, which device category should be used before digging near services?
Noise monitoring devices
Cable- and pipe-locating devices
Weather forecasting devices
Distance measuring devices
Which practices are specified as part of a safe system of work for confined spaces? Select all that apply.
Safe digging practices
Safe egress
Ignoring access restrictions
Planning the work
Some confined spaces require a permit to work because they may contain hazards. Which of the following is listed as a potential harm?
Natural daylight
Hazardous chemicals
Open ventilation shafts
Noise from traffic
Which item is identified as a potential source of harm in permit-required confined spaces?
Electrical transformers
Hand tools
Timber formwork
Plastic sheeting
When a confined space requires a permit, which area type is cited as a possible hazard source?
Plant room
Open-plan office
External scaffold
Paved car park
Which training is listed as necessary for the person in command?
CNC programming
CSR training
First aid at work only
Confined space rescue only
While working in an area of danger, which responsibilities are identified? Select all that apply.
Make an initial assessment and evaluation
Establish goals and objectives
Determine additional resources
Issue pay slips to workers
Establish a command post
What is the purpose of determining additional resources in a dangerous-area operation?
To ensure payroll accuracy
To identify what personnel and equipment are needed beyond what is on site
To replace the command post regularly
To reduce the number of responders
Before entering a confined space, checks occur once information shows PPE on hand is adequate. Which check is included?
Review scaffold tags
Obtain air monitoring samples
Schedule lunch breaks
Order replacement PPE
Which set of actions aligns with key checks prior to entering a confined space? Select all that apply.
Assess hazards present
Confirm the characteristics of the space
Conduct air monitoring sampling
Verify crane inspection certificates
In the context of confined space entry, what does assessing the characteristics of the space involve most directly?
Identifying the space’s layout and features relevant to entry
Estimating project profit margins
Choosing decorative finishes
Designing a new ventilation system for the site office
Which sequence best reflects a logical order using the listed responsibilities and checks?
Establish command post, then make initial assessment, then set goals
Make initial assessment, establish goals, determine resources, establish command post
Determine resources first, then establish goals, then make assessment
Skip assessment if PPE is adequate
Which control measure is specifically used to mark the boundary of a restricted work area on a construction site?
Barrier tape
Warning siren
High-visibility vests
First-aid kit
When might external support such as law enforcement be required for perimeter control at a construction site?
When public access must be controlled for safety
When replacing worn PPE
When conducting routine toolbox talks
When pouring small batches of concrete
Select all items that are appropriate for establishing perimeter control on a construction site.
Ropes
Barricades
Extension cords
Barrier tape
Which option best describes the purpose of perimeter control?
To prevent unauthorised entry and protect people from site hazards
To document daily productivity targets
To improve the accuracy of material measurements
To reduce the number of fire extinguishers needed
Which of the following is listed as an atmospheric hazard in construction environments?
Oxygen-deficient air
Loose handrails
Unlabelled storage bins
Cold weather clothing
Which hazards from the list are directly related to sources of energy? Select all that apply.
Live electrical circuits
Stored hydraulic pressure
Unsecured ladder
Open excavation
Which statement correctly contrasts requirements for trenches shallower than 1.2 m (4 ft) with deeper ones?
Only trenches shallower than 1.2 m require fixed and secure egress
Trenches deeper than 1.2 m require a safe means of egress such as a stairway, ladder, or ramp
Shallower trenches require metal ladders to be used with caution
Deeper trenches do not need egress if workers are supervised
