Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

NEBOSH Diploma > Construction and Works of a temporary nature - Hazards and Controls > Flashcards

Construction and Works of a temporary nature - Hazards and Controls Flashcards

(65 cards)

Start Studying
1
Q

Range of Construction Activities

A 
Site Clearance
Demolition and Dismantling
Excavation
Loading, unloading and storage of materials
Vehicle movements
Fabrication
Decoration
Cleaning
Site Services - Utilities
Landscaping
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Particular construction issues

A

Transitory nature of workers

Temporary nature of construction activities and the constantly changing workplace

Time pressure

Weather conditions

Literacy, numeracy and language

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Regulations covering Construction Projects

A

Construction (Design and Management) Regulations 2015 - CDM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What all construction projects must have

A

Workers with the right skills, knowledge, training and experience

Contractors providing appropriate supervision, instruction and information

A written construction phase plan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What projects with more than one contractor must have

A

All for construction projects plus:

Principal designer and principal contractor must be appointed

Needs a health and safety file

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When must client notify the HSE

A

If the project lasts longer than 30 days and has more than 20 workers or exceeds 500 person days

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Types of duty holder under CDM

A

1) Clients
2) Domestic Clients
3) Designers
4) Principal Designers
5) Principal Contractors
6) Workers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Principal Designer responsibilities

A

Plan, manage and coordinate H&S in the pre-construction phase of a project, including identifying. eliminating and controlling risks and ensuring the designers carry out their duties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Principal Contractor responsibilities

A

Plan, manage and coordinate H&S in the construction phase of a project, including:
Liaising with client and principal designer
Preparing construction phase plan
Organising cooperation between contractors and coordinating their work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Pre-Construction Information

A

Provides the H&S info needed in advance of work and is used to prep the construction phase plan.

Provided by the client and contains things like H&S file, Asbestos surveys etc…

Info must be relevant to the project and have appropriate level of detail and be proportionate to the nature of the risk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Construction Phase Plan

A

Outlines:
H&S arrangements for managing significant H&S risks associated with the project

The site rules

Any specific measures concerning work listed in CDM as involving particular risks

Client must ensure it is in place before the work begins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Works under CDM which involve particular risks

A

Risk of burial under earth, engulfment or falling from height

Risk from chemical or biological hazard

Ionising radiation work in controlled areas

Near high voltage power lines

Exposure to risk of drowning

Work on wells, underground earthworks and tunnels

Divers using a system of air supply

Workers in cassions with a compressed air atmosphere

Involving explosives

Assembly or dismantling of heavy prefabricated components

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Who preps the Construction Phase Plan

A

Single-contractor projects it is the Contractor

Multi-contractor projects it is the Principal Contractors duty

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Health and Safety File

A

Must contain info about the project likely to be needed to ensure H&S

Only required from projects with more than one contractor

Should be clear, concise and easily understandable in a conveniently accessible format

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

General site security precautions

A

Perimeter fencing with adequate signage and lighting

Doors and gates

Storage compounds and facilities for plant, hazardous and dangerous substances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Height of perimeter fencing

A

2m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What should be included in site inductions

A 
Signing in/out arrangements
Fitness to work / alcohol / drug screening procedures
Parking and site traffic rules
PPE requirements
Working conditions on site
Emergency procedures
Use of mobiles, smoking
Specific PTW requirements
Use of welfare facilities
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Regulations covering Height

A

Working at Height Regs 2005

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Examples of Working at Height

A 
Gutter cleaning
Putting up a display
Minor roof work
Shelf stacking
Window cleaning
Unloading a vehicle 
Machine maintenance
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Hierarchy for managing work at height

A

Avoid where possible
Use work equipment or other measures to prevent falls
Use work equipment or other measures to minimise distance and consequence of falls

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Priority of preventing falls

A

Prevention over consequence limitation

Collective measures over personal protective measures

Passive preferred to active measures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Fall prevention equipment

A

Guard rails

Work restraints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Fall Arrest equipment

A

Lanyard and shock absorber

Landing systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Types of common access equipment

A

Ladders and step ladders

Trestles and staging platforms

Independent tied scaffolds

Mobile tower scaffolds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Hazards of using ladders and stepladders
Overloading - Exceeding the max weight of the ladder | Overreaching - body not remaining between stiles and not having both feet on the same rung
26
Selecting a ladder
Suitable for worst case surface conditions Suitable for task/environment Class 1 ladders for work Suitable size Used with manufacturers recommended stability devices
27
Securing a ladder
Tie to suitable point Use a ladder stability device if tie off not possible Last resort, foot the ladder
28
Training for using ladders
Users should be trained and instructed to use equipment with the following rules: 1) ensure the ladder is long enough 2) ensure rungs or steps are level for use 3) ensure weather is suitable 4) wear robust sensible footwear 5) Know how to prevent members of the public using them 6) Know that certain medical conditions or drugs could stop them using them 7) Know how to tie it properly
29
Independent tied scaffold
Made of 2 rows of standards both internal and external. | Is tied to a building being worked on
30
Main hazards associated with scaffolds
Collapse People falling from the scaffold Objects falling or being dropped People walking into it
31
Statutory inspection of scaffolds
Immediately after construction Before anyone goes on it After and incident that may have damaged it Every 7 days Inspection must be done by a competent person, Written report should be made following the inspection
32
Falsework
Any temporary structure used to support a permanents structure while it is not self-supporting, either in new construction or refurb
33
Approved methods of mobile scaffold tower construction
Advance guard rail system | Through the trap systems
34
Inspection of mobile tower scaffolds less than 2m high
After assembly in any position After an event liable to have affected stability At suitable intervals
35
Inspection of mobile tower scaffolds more than 2m high
After assembly in any position After an event liable to have affected stability At intervals not exceeding 7 days
36
Types of temporary access
Suspended access cradles Work positioning systems Boatswains Chairs Rope access techniques
37
Definition of a fragile roof
Would be liable to fail if reasonably foreseeable loading were applied to it
38
Demolition - Pre-demo surveys
Structural Survey Hazardous Substance Survey Site/Environmental Survey
39
Soft stripping
Removal of non-structural components
40
Hard stripping
Salvage of structural components
41
Types (principals) of demolition
Piecemeal (progressive) demolition Controlled (deliberate) demolition Pre-weakening through deliberate removal of structural components
42
Demolition techniques
By hand By machine By explosive By other means
43
Demolition equipment
Base machine Equipment - boom and dipper arm Attachments - various
44
Demolition equipment - hydraulic attachments
``` Pusher arm Impact hammer Hydraulic shears Pulveriser Demolition pole Grapple Multi-purpose ```
45
Demolition equipment - non-hydraulic attachments
Ball Wire rope pulling Drilling and sawing
46
Main safety hazards of demolition
``` Premature collapse Falling materials Falling from height Impact from site vehicle movements Mechanical hazards Fire and explosion hazards Confined spaces ```
47
Main health hazards of demolition
Chemical Physical Biological
48
Exclusion zone
3D space from which all persons including the public are excluded during demolition activities
49
Hazards associated with excavations
``` Ground movement / collapse of sites Surcharging Ground and surface water Stability of adjacent structures / services Underground services Overhead lines People falling in Plant falling in Materials falling in Toxic gas and oxygen deficiency Biological and chemical hazards Noise and vibration ```
50
Ground controls for excavation
Battering or stepping | Supports
51
Surcharging
Occurs when plant or material is near the side of the excavation and increases the horizontal load causing walls to collapse
52
Controls for Surcharging
Barriers and signs to keep vehicles away Stop blocks for tipping vehicles Materials stored away from excavation
53
Controls for ground water
Water is channelled into sumps and removed using hydraulic pumps
54
Controls for stability of adjacent structures / services
Shoring of structures | Supporting of services
55
Hazards of underground services
Electricity cables can result in explosion or burns Escaping gas can ignite High pressure water pipes, sewers, telecoms all pose specific hazards
56
Controls for underground services
Check existing plans Use Cable Avoidance Tools Appropriate digging techniques
57
When do most fatal injuries with excavators occur
When moving - strikes a pedestrian When slewing - Trapping a person between plant and fixed structure or vehicle When working - When moving the bucket or other attachment strikes a person or if the bucket falls from the excavator
58
5 precautions to control the risk of using excavators
1) Exclusion 2) Clearance 3) Visibility 4) Signaller 5) Bucket attachment
59
3 categories of worker who must be trained and competent for excavator works
1) Driver 2) Signallers 3) Pedestrians
60
Quick hitches or Quick Couplers
Latching device that enables attachments to be connected to the dipper arm of an excavator and changed quickly
61
Trenchless Technology - Horizontal Directional Drilling
Uses curved trajectory to enable a pipeline to pass under an obstacle such as a river or a road without the need for excavation
62
Trenchless Technology - Impact Moling
Uses pneumatic piercing tool to create a bore hole. The approach compacts and displaces the soil rather than excavating and removing it, so minimises the disruption to the soil
63
Trenchless Technology - Pipe Bursting
Can be used to replace existing or damaged pipeline with a new pipeline of the same diameter. The old pipeline is burst in-situ or removed piece by piece and broken up as it is pushed out the tunnel
64
Statutory inspections of excavation, equipment and materials
1) At start of the shift 2) After any event likely to haver affected strength of the excavation 3) After any material unintentionally falls or is dislodged
65
Requirements to report statutory inspections
Report must be made under Reg 24 of CDM 1 report needed every 7 day period Must be retained at site and available for HSE inspectors Retained until work is finished and a further 3 months afterwards

NEBOSH Diploma (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions