CSCS Health, Safety and Environment Test — Questions and Answers

Question 1: What is the legal requirement for fencing open excavations that are left unattended, particularly near public areas?

No fencing is required if the excavation is on private land
Barrier tape alone is legally sufficient
Under CDM Regulations 2015 and the Highways Act 1980, open excavations must be securely fenced with rigid barriers, adequately signed, and lit during darkness to prevent unauthorised access (Correct answer)
Fencing is only required if the excavation is deeper than 3 metres

Correct answer: Under CDM Regulations 2015 and the Highways Act 1980, open excavations must be securely fenced with rigid barriers, adequately signed, and lit during darkness to prevent unauthorised access

Open excavations left unattended must be securely fenced with rigid barriers (not just tape), clearly signed, and provided with adequate lighting during darkness. If near a highway, the Highways Act 1980 and New Roads and Street Works Act 1991 impose additional requirements for signing, guarding, and lighting. CDM Regulations 2015 require these measures as part of the site management plan.

Question 2: What records must an employer keep regarding employees who work with asbestos under the Control of Asbestos Regulations 2012?

A health record for each employee exposed to asbestos, including the type of work, duration, and level of exposure, which must be kept for at least 40 years (Correct answer)
Only the employee's CSCS card number
Records are only required if an employee becomes ill
No records are required for asbestos work

Correct answer: A health record for each employee exposed to asbestos, including the type of work, duration, and level of exposure, which must be kept for at least 40 years

Regulation 22 of the Control of Asbestos Regulations 2012 requires employers to maintain a health record for every employee who is exposed to asbestos. This must include details of the work carried out, duration of exposure, and exposure levels. These records must be kept for at least 40 years from the last entry, reflecting the long latency period of asbestos-related diseases.

Question 3: What are the key elements of a good site induction under CDM 2015?

Only the location of the car park
A written test on construction regulations
Just a quick walk around the site
Site-specific hazards, emergency procedures, first aid arrangements, welfare locations, site rules, reporting procedures, and worker responsibilities (Correct answer)

Correct answer: Site-specific hazards, emergency procedures, first aid arrangements, welfare locations, site rules, reporting procedures, and worker responsibilities

A comprehensive site induction should cover: site-specific hazards and ongoing risks, emergency procedures and muster points, first aid provisions and locations, welfare facility locations, site rules and prohibited areas, PPE requirements, reporting procedures for accidents and near-misses, and workers' legal responsibilities.

Question 4: What colour coding is used on UK utility plans to identify gas mains?

Red
Blue
Yellow (Correct answer)
Green

Correct answer: Yellow

On UK utility plans, gas mains are shown in yellow. The standard colour coding is: red for electricity, blue for water, yellow for gas, green for telecommunications, and black or grey for sewers/drainage. Knowing this colour coding is essential when reviewing utility plans as part of the permit to dig process required by HSE guidance HSG47.

Question 5: What is the maximum safe period that a trench can remain open without being inspected, according to CDM Regulations 2015?

One week
One month
Until the start of the next working shift — inspections must occur at the start of every shift during which the excavation is occupied (Correct answer)
As long as the shoring appears intact

Correct answer: Until the start of the next working shift — inspections must occur at the start of every shift during which the excavation is occupied

CDM Regulations 2015 Regulation 22 requires excavation inspections at the start of every shift before work begins. A trench cannot be left open between shifts without reinspection before re-entry. Additionally, inspections are required after any event that may have affected stability (rain, vibration, etc.). This ensures conditions are checked before anyone enters.

Question 6: What legal protection do bats receive on UK construction sites?

Only rare bat species are protected
All bat species and their roosts are protected under the Wildlife and Countryside Act 1981 and the Conservation of Habitats and Species Regulations 2017 — it is an offence to deliberately kill, injure, capture, or disturb bats or damage/destroy their roosts (Correct answer)
Bats have no special legal protection
Bats are only protected in national parks

Correct answer: All bat species and their roosts are protected under the Wildlife and Countryside Act 1981 and the Conservation of Habitats and Species Regulations 2017 — it is an offence to deliberately kill, injure, capture, or disturb bats or damage/destroy their roosts

All 18 UK bat species are European Protected Species. Under the Wildlife and Countryside Act 1981 and the Conservation of Habitats and Species Regulations 2017, it is a criminal offence to deliberately capture, injure, or kill a bat; deliberately disturb bats; or damage or destroy a bat roost (even when unoccupied). Construction work affecting bats requires a licence from Natural England, and ecological surveys must be conducted before demolition or renovation.

Question 7: What class of electrical equipment relies solely on double insulation for protection rather than an earth connection?

Class II (Correct answer)
Class I
Class III
Class 0

Correct answer: Class II

Class II equipment (marked with the double square symbol) relies on double or reinforced insulation for protection against electric shock and does not require an earth connection. The Electricity at Work Regulations 1989 recognise double insulation as a valid protective measure. Class I equipment relies on an earth connection, while Class III uses Safety Extra-Low Voltage (SELV).

Question 8: How should hazardous substances be stored on a construction site according to COSHH and CLP requirements?

Anywhere that is convenient for the workers
In the site canteen for easy access
In properly labelled, sealed containers in a secure, ventilated area with appropriate bunding and segregation of incompatible substances (Correct answer)
Loose on open shelving with no specific arrangements

Correct answer: In properly labelled, sealed containers in a secure, ventilated area with appropriate bunding and segregation of incompatible substances

Hazardous substances must be stored in clearly labelled, sealed containers in secure, ventilated storage areas. Incompatible substances (e.g., oxidisers and flammables) must be segregated. Bunding must be provided for liquids to contain spills (typically 110% of the largest container). Access should be restricted to authorised persons.

Question 9: What should you do if you discover a fire on a construction site?

Take a photo for evidence
Try to fight it immediately
Raise the alarm, call the fire brigade (999), evacuate to the assembly point, and only fight the fire if trained and it is safe to do so (Correct answer)
Continue working until told to evacuate

Correct answer: Raise the alarm, call the fire brigade (999), evacuate to the assembly point, and only fight the fire if trained and it is safe to do so

The priority sequence is: raise the alarm (activate the nearest break glass point), call 999, evacuate via the nearest safe route to the assembly point. Only attempt to fight a small fire if you are trained and it is safe to do so.

Question 10: Under what circumstances can asbestos-containing materials be safely left in place rather than removed?

Only in residential properties, not commercial
Never — all asbestos must be immediately removed
Only if the building is less than 30 years old
When the ACM is in good condition, unlikely to be disturbed, and can be effectively managed through labelling, regular monitoring, and an asbestos management plan as required by Regulation 4 (Correct answer)

Correct answer: When the ACM is in good condition, unlikely to be disturbed, and can be effectively managed through labelling, regular monitoring, and an asbestos management plan as required by Regulation 4

The Control of Asbestos Regulations 2012 recognise that ACMs in good condition that are unlikely to be disturbed may be safer left in place and managed, rather than removed (which itself creates a risk of fibre release). The duty to manage requires that ACMs left in place are labelled, their condition regularly monitored, and information provided to anyone who might disturb them. Removal is only required when the material is damaged, deteriorating, or will be disturbed by planned work.

Question 11: What is the maximum penalty for breaching the Control of Asbestos Regulations 2012?

A written warning only
No penalties exist for asbestos offences
Unlimited fines and/or up to 2 years' imprisonment for breaches tried on indictment in the Crown Court (Correct answer)
A fixed penalty notice of £500

Correct answer: Unlimited fines and/or up to 2 years' imprisonment for breaches tried on indictment in the Crown Court

Breaches of the Control of Asbestos Regulations 2012 are criminal offences under the Health and Safety at Work etc. Act 1974. When tried on indictment in the Crown Court, penalties include unlimited fines and/or up to 2 years' imprisonment. Directors and managers can be personally prosecuted if they consented to or connived at the offence. The HSE actively prosecutes serious breaches.

Question 12: What is the purpose of a Section 61 consent under the Control of Pollution Act 1974?

It is a consent for demolition only
Section 61 relates to waste disposal, not noise
It is a building regulations approval
It is a prior consent obtained from the local authority before construction work begins, agreeing the methods, hours, and noise levels for the works — it provides the contractor with a defence against noise nuisance complaints if the agreed conditions are followed (Correct answer)

Correct answer: It is a prior consent obtained from the local authority before construction work begins, agreeing the methods, hours, and noise levels for the works — it provides the contractor with a defence against noise nuisance complaints if the agreed conditions are followed

A Section 61 consent under the Control of Pollution Act 1974 is a voluntary prior agreement with the local authority covering construction methods, working hours, noise levels, and mitigation measures. The key benefit is that it provides a defence against prosecution for noise nuisance under the Environmental Protection Act 1990, provided the agreed conditions are followed. It also demonstrates good practice and community consideration.

Question 13: Under the Regulatory Reform (Fire Safety) Order 2005, who is the 'responsible person' for fire safety on a construction site?

The fire brigade
The local authority
The building inspector
The employer or person who has control of the premises (Correct answer)

Correct answer: The employer or person who has control of the premises

Under the RR(FS)O 2005, the responsible person is the employer, or in relation to a workplace not controlled by an employer, the person who has control of the premises. On a construction site, this is typically the principal contractor.

Question 14: What is a Short-Term Exposure Limit (STEL) under COSHH?

The maximum exposure allowed over an 8-hour working day
The length of time a worker can stay in a confined space
The maximum number of days a worker can handle a substance per month
The maximum concentration of an airborne substance averaged over a 15-minute reference period (Correct answer)

Correct answer: The maximum concentration of an airborne substance averaged over a 15-minute reference period

A STEL is the maximum airborne concentration of a hazardous substance averaged over a 15-minute reference period. STELs are set for substances where short-term peak exposures can cause acute health effects, even if the 8-hour TWA WEL is not exceeded.

Question 15: Under the Work at Height Regulations 2005, what is the primary duty of an employer regarding work at height?

Provide all workers with harnesses
Ensure all scaffolding is painted yellow
Allow only supervisors to work above 2 metres
Avoid work at height where reasonably practicable (Correct answer)

Correct answer: Avoid work at height where reasonably practicable

The Work at Height Regulations 2005 require employers to avoid work at height where it is reasonably practicable to do so. Where it cannot be avoided, employers must use equipment or measures to prevent falls.

Question 16: What is a Notifiable Non-Licensed Work (NNLW) category under the Control of Asbestos Regulations 2012?

A category of asbestos work that is lower risk than licensed work but still requires notification to the relevant enforcing authority, medical examination of workers, and record keeping (Correct answer)
This category does not exist in UK regulations
Work that can be done by any construction worker without training
Any work with asbestos that does not require a licence

Correct answer: A category of asbestos work that is lower risk than licensed work but still requires notification to the relevant enforcing authority, medical examination of workers, and record keeping

NNLW is an intermediate category for work that is not licensable but still carries sufficient risk to require notification to the enforcing authority, medical examinations for workers, and maintenance of health records. Examples include short-duration work on asbestos insulation board (AIB) such as drilling holes or removing a single panel. It was introduced in the 2012 update to the regulations.

Question 17: What does the GHS gas cylinder symbol indicate?

Gas under pressure that may explode if heated or may cause cryogenic burns (Correct answer)
Toxic gas
Flammable gas
Inert gas with no hazards

Correct answer: Gas under pressure that may explode if heated or may cause cryogenic burns

The GHS gas cylinder symbol (GHS04) indicates gases under pressure, including compressed, liquefied, dissolved, and refrigerated liquefied gases. These may explode if heated or cause cryogenic burns. On construction sites, this applies to welding gases, propane, and other compressed gas cylinders.

Question 18: What is a means of escape in case of fire?

The main entrance only
Any window
A fire extinguisher location
A structural route that provides a safe path of travel from any point in the building to a place of safety outside (Correct answer)

Correct answer: A structural route that provides a safe path of travel from any point in the building to a place of safety outside

A means of escape is a safe route that people can use to travel from any point in the building to a final exit and place of safety. It must be maintained clear and unobstructed, adequately lit, and properly signed.

Question 19: Which of the following is NOT a duty on employees under the Control of Noise at Work Regulations 2005?

Report any defects in hearing protection to the employer
Use hearing protection provided by the employer in hearing protection zones
Use any equipment provided to reduce noise exposure in accordance with training
Carry out their own noise risk assessment (Correct answer)

Correct answer: Carry out their own noise risk assessment

Under the Regulations, employees must use hearing protection and other noise control equipment as instructed, report defects, and cooperate with the employer. However, carrying out the noise risk assessment is the employer's duty, not the employee's.

Question 20: What measures should be taken to manage deliveries safely on a construction site?

Establish designated delivery areas, separate vehicle and pedestrian routes, use banksmen, and schedule deliveries to minimise congestion (Correct answer)
Stop all work whenever a delivery arrives
Only accept deliveries at night
Allow delivery vehicles to drive anywhere on site

Correct answer: Establish designated delivery areas, separate vehicle and pedestrian routes, use banksmen, and schedule deliveries to minimise congestion

Safe delivery management includes designating specific delivery and unloading areas, providing separate routes for vehicles and pedestrians, using trained banksmen to guide vehicles, scheduling deliveries to avoid congestion, ensuring adequate turning space, and briefing delivery drivers on site rules during induction.

Question 21: What is the lifespan of a typical construction safety helmet?

Typically 3-5 years from manufacture, depending on material and manufacturer guidance (Correct answer)
1 year
Unlimited if undamaged
10 years

Correct answer: Typically 3-5 years from manufacture, depending on material and manufacturer guidance

Most manufacturers recommend replacing safety helmets every 3-5 years from date of manufacture (check the date stamp inside). UV exposure, temperature extremes, and chemicals can degrade the shell material over time.

Question 22: What is the purpose of a near-miss reporting system on a construction site?

To identify and address hazards before they cause actual harm, and to improve safety management systems through trend analysis (Correct answer)
To increase paperwork for the site manager
To report near-misses to the police
To discipline workers who make mistakes

Correct answer: To identify and address hazards before they cause actual harm, and to improve safety management systems through trend analysis

Near-miss reporting allows hazards to be identified and addressed before they result in injury or damage. Analysis of near-miss trends can reveal systemic safety issues. A culture of open reporting without blame encourages workers to report all near-misses, providing valuable data for proactive safety improvement.

Question 23: What is the recommended maximum gap between a scaffold platform and the building face to prevent materials falling?

500mm
150mm
225mm
300mm (Correct answer)

Correct answer: 300mm

HSE guidance (HSG150) recommends that the gap between a scaffold platform and the building face should not exceed 300mm to prevent materials and tools from falling through.

Question 24: What should a first aider do if they suspect a worker has heat stroke on site?

Give them hot drinks to replace fluids
Apply a tourniquet to reduce blood flow
Tell them to continue working in the shade
Move them to a cool area, remove outer clothing, and cool them with water while calling 999 (Correct answer)

Correct answer: Move them to a cool area, remove outer clothing, and cool them with water while calling 999

Heat stroke is a medical emergency. The worker should be moved to a cool area, outer clothing removed, and their body cooled using water, wet towels, or fanning. Call 999 immediately. Do not give them anything to drink if they are confused or unconscious.

Question 25: What are the three modes of operation on a CAT scanner and what does each detect?

Speed, distance, and depth modes
Shallow, medium, and deep scanning modes
Heat, vibration, and moisture modes
Power mode (detects live electrical cables), Radio mode (detects metallic services receiving long-wave radio signals), and Genny mode (detects the signal applied by a connected Genny unit) (Correct answer)

Correct answer: Power mode (detects live electrical cables), Radio mode (detects metallic services receiving long-wave radio signals), and Genny mode (detects the signal applied by a connected Genny unit)

The CAT operates in three modes: Power mode detects the 50Hz electromagnetic field from live power cables; Radio mode detects long-wave radio signals re-radiated by metallic pipes and cables; and Genny mode detects the specific signal applied to a service by the connected Genny unit. HSE guidance HSG47 requires all three modes to be used for a comprehensive survey before excavation.

Question 26: Which of the following is NOT a requirement of welfare facilities on a UK construction site?

Drinking water readily accessible to all workers
A fully equipped gym for worker wellbeing (Correct answer)
Rest areas with seating, heating, and food warming
Toilets that are clean, ventilated, and adequately lit

Correct answer: A fully equipped gym for worker wellbeing

While CDM 2015 requires toilets, washing facilities, drinking water, rest facilities, and changing rooms, a gym is not a legal requirement for construction site welfare.

Question 27: Under UK law, which legislation requires employers to report certain workplace injuries to the HSE?

CDM 2015
The Management of Health and Safety at Work Regulations 1999
RIDDOR 2013 (Correct answer)
The Health and Safety at Work etc. Act 1974

Correct answer: RIDDOR 2013

The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR) requires employers to report specified workplace injuries, diseases, and dangerous occurrences to the HSE. This includes deaths, specified injuries, over-7-day incapacitation, and certain occupational diseases.

Question 28: What does the term 'friable' mean in relation to asbestos-containing materials?

The material can be easily crumbled, pulverised, or reduced to powder by hand pressure, making it highly likely to release dangerous fibres into the air (Correct answer)
The material is safe and fully bonded
The material has been treated and is no longer hazardous
The material is fire-resistant

Correct answer: The material can be easily crumbled, pulverised, or reduced to powder by hand pressure, making it highly likely to release dangerous fibres into the air

Friable asbestos-containing material can be easily crumbled or reduced to powder by hand pressure. This makes it extremely dangerous as fibres can be readily released into the air and inhaled. Examples include sprayed asbestos coatings and damaged pipe lagging. Friable ACMs are the highest priority for management or removal under the duty to manage in the Control of Asbestos Regulations 2012.

Question 29: What is the daily exposure limit value for hand-arm vibration?

2.5 m/s²
7.5 m/s²
5.0 m/s² (Correct answer)
3.5 m/s²

Correct answer: 5.0 m/s²

The daily exposure limit value (ELV) for hand-arm vibration is 5.0 m/s² A(8). This must not be exceeded. Employers must take immediate action if monitoring shows that workers are being exposed above this level.

Question 30: How often must LEV systems be examined and tested under COSHH Regulation 9?

Every 6 months
Every 2 years
Only when a fault is suspected
At least every 14 months (Correct answer)

Correct answer: At least every 14 months

Under COSHH Regulation 9, LEV equipment must be thoroughly examined and tested at least every 14 months (or more frequently for certain processes). Records of examinations must be kept for at least 5 years.

Question 31: What is the trigger point for health surveillance for workers exposed to hand-arm vibration?

Only for workers over 40 years old
Regular exposure at or above the exposure action value of 2.5 m/s² A(8), or where there is a risk of HAVS for any other reason (Correct answer)
Only when a worker reports symptoms
Any use of vibrating tools regardless of exposure level

Correct answer: Regular exposure at or above the exposure action value of 2.5 m/s² A(8), or where there is a risk of HAVS for any other reason

Health surveillance must be provided for workers regularly exposed at or above the HAV exposure action value of 2.5 m/s² A(8), or where there is a risk of HAVS for any other reason (for example, workers with pre-existing conditions). Surveillance includes questionnaires, clinical assessments, and standardised testing.

Question 32: What type of gloves should be worn when handling cement on a construction site?

Leather gloves
Cotton gloves
No gloves are needed for cement
Chemical-resistant gloves (e.g., nitrile or PVC) that prevent skin contact with wet cement (Correct answer)

Correct answer: Chemical-resistant gloves (e.g., nitrile or PVC) that prevent skin contact with wet cement

Wet cement is highly alkaline (pH 12-13) and causes serious chemical burns and dermatitis. Chemical-resistant gloves made of nitrile or PVC must be worn to prevent skin contact. Leather and cotton gloves absorb moisture and make burns worse.

Question 33: What does the CE marking on PPE indicate?

It is the cheapest option available
It was made in China or Europe
It has been approved by the HSE
It conforms to the essential health and safety requirements set out in European regulations (Correct answer)

Correct answer: It conforms to the essential health and safety requirements set out in European regulations

The CE marking indicates that the PPE conforms to the essential health and safety requirements of the relevant European Product Directive. Since Brexit, the UKCA (UK Conformity Assessment) marking is used for the GB market.

Question 34: What is a musculoskeletal disorder (MSD) in the context of manual handling?

A mental health condition
A disorder of the nervous system
An injury or disorder affecting the muscles, joints, tendons, ligaments, or nerves (Correct answer)
A skin condition from handling chemicals

Correct answer: An injury or disorder affecting the muscles, joints, tendons, ligaments, or nerves

Musculoskeletal disorders (MSDs) affect the body's movement system — muscles, joints, tendons, ligaments, nerves, and spinal discs. Common examples include back pain, repetitive strain injuries, and work-related upper limb disorders.

Question 35: What should a worker do if their PPE is damaged or defective?

Keep using it if the damage is minor
Repair it themselves with tape
Continue using it until the end of the shift
Stop using it immediately, report the defect, and obtain replacement PPE before continuing work (Correct answer)

Correct answer: Stop using it immediately, report the defect, and obtain replacement PPE before continuing work

A worker must stop using damaged or defective PPE immediately, report the defect to their supervisor, and obtain suitable replacement PPE before continuing the task. Using damaged PPE could provide a false sense of security.

Question 36: How often should toolbox talks be delivered on a construction site?

Regularly, and whenever new hazards arise, work activities change, or after incidents — typically weekly or before specific tasks (Correct answer)
Only on the first day of a project
Only when the HSE visits
Once a year

Correct answer: Regularly, and whenever new hazards arise, work activities change, or after incidents — typically weekly or before specific tasks

Toolbox talks should be delivered regularly (many sites conduct them weekly or daily) and whenever circumstances require, such as when new hazards are identified, work activities change, new workers arrive, after near-misses or incidents, or when introducing new equipment or processes.

Question 37: What colour filter is used in RPE for protection against organic vapours?

Brown (Type A) (Correct answer)
White
Blue
Grey

Correct answer: Brown (Type A)

Brown-coded filters (Type A) are used for protection against organic vapours and gases with a boiling point above 65°C. Different hazards require different coloured filters — it is essential to use the correct type.

Question 38: What is the purpose of earthing and bonding in a temporary electrical installation on a construction site?

To provide a low-resistance path to earth so that protective devices operate quickly in the event of a fault (Correct answer)
To improve the speed of electrical supply
To increase the voltage available to tools
To reduce electricity bills

Correct answer: To provide a low-resistance path to earth so that protective devices operate quickly in the event of a fault

Earthing and bonding provide a low-resistance path for fault current to flow to earth, enabling protective devices (fuses, MCBs, RCDs) to operate quickly and disconnect the supply. BS 7671 requires all exposed and extraneous conductive parts to be earthed and bonded to prevent them becoming live during a fault, which could cause electric shock.

Question 39: Under COSHH, what is the meaning of 'adequate control' of exposure?

Simply providing PPE is adequate control
Only controlling exposure during winter months
Allowing exposure up to twice the WEL
Reducing exposure to as low as is reasonably practicable and, for substances with a WEL, ensuring that limit is not exceeded (Correct answer)

Correct answer: Reducing exposure to as low as is reasonably practicable and, for substances with a WEL, ensuring that limit is not exceeded

Under COSHH, adequate control means reducing exposure to as low as is reasonably practicable. For substances with a WEL, exposure must not exceed that limit. For carcinogens, mutagens, and substances with no WEL, the duty is to reduce exposure as far as is reasonably practicable, applying the hierarchy of control.

Question 40: What is asbestosis and how does it differ from mesothelioma?

Asbestosis is a skin condition and mesothelioma affects the liver
They are the same disease
Asbestosis is curable but mesothelioma is not
Asbestosis is fibrosis (scarring) of the lung tissue caused by heavy, prolonged exposure, while mesothelioma is a cancer of the lung lining that can result from even brief exposure — both are caused by asbestos (Correct answer)

Correct answer: Asbestosis is fibrosis (scarring) of the lung tissue caused by heavy, prolonged exposure, while mesothelioma is a cancer of the lung lining that can result from even brief exposure — both are caused by asbestos

Asbestosis is a chronic condition where asbestos fibres cause progressive scarring (fibrosis) of the lung tissue, typically requiring heavy and prolonged exposure over many years. Mesothelioma is a cancer of the pleura (lung lining) or peritoneum (abdominal lining) that can result from even brief or low-level exposure and is always fatal. Both diseases are recognised under the Control of Asbestos Regulations 2012.

Question 41: What is a fall restraint system?

A system that physically prevents you from reaching a fall edge (Correct answer)
A type of scaffold guard rail
A safety net below the work area
A system that catches you after you fall

Correct answer: A system that physically prevents you from reaching a fall edge

A fall restraint system uses a harness and short lanyard to physically prevent the worker from reaching an edge from which they could fall. Unlike fall arrest, which catches you after a fall, fall restraint prevents the fall from happening.

Question 42: What action must a construction worker take if they accidentally discover suspected asbestos-containing material during work?

Remove it quickly and place it in a bin bag
Stop work immediately, evacuate the area, prevent others from entering, report to the supervisor, and do not attempt to clean up or disturb the material further (Correct answer)
Wet the material and continue working around it
Continue working but wear a dust mask

Correct answer: Stop work immediately, evacuate the area, prevent others from entering, report to the supervisor, and do not attempt to clean up or disturb the material further

Under the Control of Asbestos Regulations 2012, if suspected ACM is discovered unexpectedly, all work must stop immediately. The area must be evacuated and sealed off, access prevented, and the supervisor informed. The material must not be disturbed, cleaned up, or handled by unqualified persons. A licensed asbestos contractor must be called to assess and, if necessary, remove the material.

Question 43: What is the emergency services telephone number in the UK?

911
111
000
112 or 999 (Correct answer)

Correct answer: 112 or 999

In the UK, the emergency services can be reached by dialling 999 or 112. Both numbers connect to the same emergency services. 112 is the European standard emergency number and also works on mobile phones even without a SIM card or network coverage.

Question 44: What is the correct order of the waste hierarchy as defined by the Waste (England and Wales) Regulations 2011?

There is no legally defined order for waste management
Prevention, reuse, recycling, other recovery (e.g. energy recovery), and disposal — in descending order of preference (Correct answer)
Recycle, reuse, dispose, recover, prevent
Dispose, recover, recycle, reuse, prevent

Correct answer: Prevention, reuse, recycling, other recovery (e.g. energy recovery), and disposal — in descending order of preference

The Waste (England and Wales) Regulations 2011 implement the EU Waste Framework Directive and establish the waste hierarchy in order of preference: prevention (avoiding waste creation), preparing for reuse, recycling, other recovery (such as energy recovery), and disposal (landfill) as the last resort. Construction sites must demonstrate compliance with this hierarchy.

Question 45: Who is responsible for ensuring welfare facilities remain clean and properly maintained throughout a construction project?

The client who commissioned the project
The site cleaner, who bears sole responsibility
The principal contractor (Correct answer)
Each individual worker for their own immediate area

Correct answer: The principal contractor

Under CDM 2015, the principal contractor is responsible for maintaining welfare facilities in good working order and ensuring they are cleaned regularly throughout the construction phase.

Question 46: A construction worker has a chemical burn from wet cement. What is the correct first aid treatment?

Apply a dry dressing immediately
Wrap the area in cling film without washing
Brush off dry cement, then irrigate with large amounts of clean water for at least 20 minutes (Correct answer)
Apply neutralising cream

Correct answer: Brush off dry cement, then irrigate with large amounts of clean water for at least 20 minutes

For chemical burns from wet cement, you should first brush off any dry cement, then irrigate the affected area with copious amounts of clean water for at least 20 minutes. Cement is highly alkalite and causes deep burns if not removed promptly. This should be followed by medical attention.

Question 47: Why is smoking particularly dangerous for workers who have been exposed to asbestos?

Smoking has no effect on asbestos-related health risks
Smoking combined with asbestos exposure increases the risk of lung cancer by up to 50 times compared to someone who neither smokes nor is exposed to asbestos — the two risk factors are synergistic (Correct answer)
Smoking actually protects against asbestos fibres
Smoking only slightly increases the risk

Correct answer: Smoking combined with asbestos exposure increases the risk of lung cancer by up to 50 times compared to someone who neither smokes nor is exposed to asbestos — the two risk factors are synergistic

Smoking and asbestos exposure have a synergistic (multiplicative) effect on lung cancer risk. While asbestos exposure alone increases lung cancer risk by approximately 5 times and smoking alone by approximately 10 times, the combined exposure increases the risk by up to 50 times. This is why health surveillance programmes for asbestos workers strongly advise smoking cessation.

Question 48: What is the legal framework for controlling vibration from construction activities that affects neighbouring properties?

There is no legal control over construction vibration
Only piling work is subject to vibration controls
Vibration is controlled under the Environmental Protection Act 1990 (statutory nuisance), BS 5228-2 (Code of practice for noise and vibration control on construction sites), and planning conditions — vibration limits at sensitive receptors must be monitored and complaints investigated (Correct answer)
Vibration is only controlled if it causes structural damage

Correct answer: Vibration is controlled under the Environmental Protection Act 1990 (statutory nuisance), BS 5228-2 (Code of practice for noise and vibration control on construction sites), and planning conditions — vibration limits at sensitive receptors must be monitored and complaints investigated

Construction vibration is controlled by: the Environmental Protection Act 1990 (vibration can constitute a statutory nuisance); BS 5228-2:2009+A1:2014 (provides guidance on vibration prediction, measurement, and control); planning conditions (often set vibration limits at sensitive receptors); and the Party Wall etc. Act 1996 (for work affecting adjoining properties). Continuous vibration monitoring at nearby properties is often required, with trigger and stop limits.

Question 49: What precautions should be taken when storing flammable liquids on a construction site?

Store in a secure, ventilated, bunded storage area away from ignition sources, with appropriate signage (Correct answer)
Store them anywhere convenient
No special precautions are needed for small quantities
Store them in the site office

Correct answer: Store in a secure, ventilated, bunded storage area away from ignition sources, with appropriate signage

Flammable liquids must be stored in a designated, secure, ventilated area with bunding to contain spills (110% of the largest container). The area must be away from ignition sources, have appropriate warning signs, and fire extinguishers nearby.

Question 50: What PPE is required when using a cartridge-operated fixing tool (Hilti gun)?

Safety glasses/goggles, hearing protection, safety boots, and gloves (Correct answer)
Safety boots only
Hard hat only
No specific PPE is needed

Correct answer: Safety glasses/goggles, hearing protection, safety boots, and gloves

Cartridge-operated fixing tools produce noise, debris, and recoil. Operators need safety glasses or goggles (debris), hearing protection (noise exceeds 85 dB), safety boots (dropped tool/fixings), and gloves (vibration and handling).

Question 51: Under the Manual Handling Operations Regulations 1992, what is the employer's first duty?

Provide manual handling training
Avoid hazardous manual handling operations so far as is reasonably practicable (Correct answer)
Supply lifting equipment
Conduct annual assessments

Correct answer: Avoid hazardous manual handling operations so far as is reasonably practicable

The first duty under the Manual Handling Operations Regulations 1992 is to avoid hazardous manual handling operations so far as is reasonably practicable, for example by redesigning the task or using mechanical aids.

Question 52: When using a mobile elevating work platform (MEWP), what must the operator hold?

A valid IPAF licence or equivalent training certification (Correct answer)
No specific qualification is required
A driving licence
A CSCS card only

Correct answer: A valid IPAF licence or equivalent training certification

Operators of MEWPs should hold a valid IPAF (International Powered Access Federation) licence or equivalent recognised training certification. This ensures they are competent to operate the equipment safely.

CSCS Health, Safety and Environment Test

The CSCS Health, Safety and Environment Test is required to obtain the CSCS Green Card for UK construction site workers, covering working at height, manual handling, PPE, fire safety, COSHH, electrical safety, and environmental awareness.

Questions

45 min

Time Limit

72%

To Pass

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These practice questions were written with AI tools. They are not real exam questions. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

cscs.uk.com — Eligibility, fees, renewal, score validity · verified Oct 2026
citb.co.uk — Exam format, passing score, time limit, test delivery, fees · verified Oct 2026