NEBOSH NCC1 ACTUAL 2025/2026 QUESTIONS AND VERIFIED
CORRECT ANSWERS, GRADED A+
Non-mechanical hazards from machinery - -----Answers----
electricity
- noise
- vibration
- hazardous substances
- ionising radiation
- non-ionising radiation
- extreme temperatures
- ergonomics
- slips, trips and falls
- fire and explosion
Excavation hazards - -----Answers---Buried services
Fall of persons/Equipment/material into excavation
Collapse of sides
Collapse of adjacent structures
Water ingress
Use of cofferdams and caissons
Contaminated ground
Toxic and asphyxiating atmosphere
Mechanical hazards
,Overhead hazards inc power lines
Control measures for excavation work - -----Answers---
Identification of buried services
Safe digging methods
Support of excavation
Means of access
Crossing points
Barriers
Lighting and warning signs
Safe storage of spoil
De-watering and freezing
Safe use of vehicles
PPE
Definition of confined space - -----Answers---A confined
space is any enclosed space where there is reasonably
foreseeable specified risk of any serious injury associated
with it.
Specified risks - confined spaces - -----Answers---Fire or
explosion
Heat
Asphyxiation from gases
Drowning
Entrapment free-flowing solid
,Hazards and risks associated with confined spaces - -----
Answers---Toxic atmospheres
Explosive or flammable atmospheres
Oxygen deficient or enriched atmospheres
Heat
Water
Free-flowing solids
Restricted space
Control measures for confined space working - -----
Answers---Avoid
Risk assessment
Planning
Permit-to-work procedures
Training, competent persons
Atmospheric testing
Access/egress
PPE
Monitoring
Emergency arrangements
Demolition definition - -----Answers---Is the deliberate
pulling down, destruction or taking apart of a structure, or a
substantial part of a structure (usually not for re-use)
, Deconstruction definition - -----Answers---Often also
referred to as "dismantling", is the taking down of all, or a
substantial part, of a structure (often for re-use)
Types of demolition - -----Answers---Piecemeal demolition
Deliberate controlled collapse
Pre-weakening
Progressive demolition
Overturning by wire rope pulling
Legislation relating to demolition - -----Answers---Health
and Safety at Work Act 1974
Construction (Design and Management) Regulations 2007
Control of Major Accident Hazards (COMAH) Regulations 1999
Work at Height Regulations 2005
Hazards relating to demolition - -----Answers---Hand tools -
vibration
Use of machines
Premature collapse
Safe working spaces and exclusion tools
Falls and falling materials
Plant overturning
Manual handling
CORRECT ANSWERS, GRADED A+
Non-mechanical hazards from machinery - -----Answers----
electricity
- noise
- vibration
- hazardous substances
- ionising radiation
- non-ionising radiation
- extreme temperatures
- ergonomics
- slips, trips and falls
- fire and explosion
Excavation hazards - -----Answers---Buried services
Fall of persons/Equipment/material into excavation
Collapse of sides
Collapse of adjacent structures
Water ingress
Use of cofferdams and caissons
Contaminated ground
Toxic and asphyxiating atmosphere
Mechanical hazards
,Overhead hazards inc power lines
Control measures for excavation work - -----Answers---
Identification of buried services
Safe digging methods
Support of excavation
Means of access
Crossing points
Barriers
Lighting and warning signs
Safe storage of spoil
De-watering and freezing
Safe use of vehicles
PPE
Definition of confined space - -----Answers---A confined
space is any enclosed space where there is reasonably
foreseeable specified risk of any serious injury associated
with it.
Specified risks - confined spaces - -----Answers---Fire or
explosion
Heat
Asphyxiation from gases
Drowning
Entrapment free-flowing solid
,Hazards and risks associated with confined spaces - -----
Answers---Toxic atmospheres
Explosive or flammable atmospheres
Oxygen deficient or enriched atmospheres
Heat
Water
Free-flowing solids
Restricted space
Control measures for confined space working - -----
Answers---Avoid
Risk assessment
Planning
Permit-to-work procedures
Training, competent persons
Atmospheric testing
Access/egress
PPE
Monitoring
Emergency arrangements
Demolition definition - -----Answers---Is the deliberate
pulling down, destruction or taking apart of a structure, or a
substantial part of a structure (usually not for re-use)
, Deconstruction definition - -----Answers---Often also
referred to as "dismantling", is the taking down of all, or a
substantial part, of a structure (often for re-use)
Types of demolition - -----Answers---Piecemeal demolition
Deliberate controlled collapse
Pre-weakening
Progressive demolition
Overturning by wire rope pulling
Legislation relating to demolition - -----Answers---Health
and Safety at Work Act 1974
Construction (Design and Management) Regulations 2007
Control of Major Accident Hazards (COMAH) Regulations 1999
Work at Height Regulations 2005
Hazards relating to demolition - -----Answers---Hand tools -
vibration
Use of machines
Premature collapse
Safe working spaces and exclusion tools
Falls and falling materials
Plant overturning
Manual handling
