4 - Workplace hazards and precautions Flashcards
T/F Fire risk assessments are a one-time procedure and do not need to be reviewed regularly
False
T/F Over a 1/3 of factories experiencing a major fire typically shut down permanently
True
Every year, heavy losses are caused by fires throughout industry at large - loss of …, loss of …, lost …
life, equipment, production
What are the requirements for providing a safe means of escape
- Escape routes
- Alternative means of escape
- Protection of routes
- Assembly points
- Signs and lighting for routes
- Training and practice
What is the main purpose of fire extinguishers
To extinguish or control small fires
T/F An explosive atmosphere always leads to an explosion in flour mills
False
The types of fire-fighting equipment and where they are located depends on the site and … Make sure you know where equipment is located in your workplace, how each type works and its specific …
hazards, application
List and describe the 5 steps of a fire risk assessment
- Identify hazards - locate sources of ignition
- Identify people at risk - all employees and any visitors and vulnerable people
- Evaluate, remove or reduce the risks - fire detection, means of giving warning
- Record, plan and train - record risk, make an emergency plan, train and inform staff
- Review - review the risk assessment at regular intervals
What is the recommended practice before using ladders or stepladders
Carry out a pre-use check for visual defects
How many points of contact should be maintained while working on a step ladder
3
T/F Dust explosions in flour mills release primarily CO2 and steam as by-products
True
T/F Dust explosions in flour mills occur only when there is insufficient oxygen present
False
What is the primary purpose of Mobile Elevated Working Platforms (MEWPs)
Providing temporary access for working at height
MEWPs are specifically designed to lift … to a position where they can carry out work from the work … and then return to the starting level. They are not intended to be used to … people from one level to another or for people to exit the basket at height.
People, Platform, Transfer
T/F One hazard associated with MEWPs is the risk of the operator becoming trapped against an overhead or adjacent object
True
Describe 10 control measures you could use when working at height
- Avoid working at height where reasonably practicable
- Where it cannot be avoided, prevent falls using an existing place of work that is already safe or the right type of equipment
- minimise the distance and consequences of a fall by using the right type of equipment where the risk cannot be eliminated
- Ensure workers can get safely to and from where they work at height
- Ensure equipment is suitable, stable and strong enough for the job, and is maintained and checked regularly
- Take precautions when working on or near fragile surfaces
- Provide protection from falling objects
- Consider employees individual capabilities when assigning tasks
- Consider emergency evacuation and rescue procedures
- Do not make mobile scaffold too high, use stabilising outriggers or ensure theyre secured
T/F Electricity is considered hazardous because it emits a distinct smell before causing harm
False - there is no smell
T/F Electricity is incapable of igniting insulating or other combustible materials in potentially flammable atmospheres
False
How can effective maintenance of portable electrical equipment be acheived
By regular user inspections
Checks by user
PAT test by competent person
What is the purpose of electricity at work regulations
To require precautions against the risk of death or injury from electricity
List 5 pre use user checks for portable electrical equipment
- Damage to supply cable
- Damage to plug or connector
- Loose parts or screws
- Inadequate joints
- Evidence of overheating
- Suitable for the voltage
- Properly earthed unless double insulated
T/F There are no specific protective system or techniques outlined in the text for safeguarding against electrical hazards
False
What must be adhered to by a competent person when live or potentially live circuits are involved
A safe system of work / Permit to work
Describe the principle hazards associated with electricity
- Electric shock - convulsive reaction of the human body to the flow of electric current through it
- Arc eye - painful eye condition caused by UV rays when looking at welding flash without eye protection
- Electrical fires - caused by lack of reasonable care in maintenance and use of electrical equipment
- Explosion - Electricity can cause fire if equipment is misused in an explosive atmosphere
6 Steps of LOTO
- Preparation
- Shutdown
- Isolation
- Lockout/tagout
- Stored energy check
- Isolation verification