Safe Work Practices Flashcards
Name 4 categories of trade related hazards.
Biological, chemical, ergonomic, and physical.
Name 3 sub categories of biological hazards
Bacterial, Fungal, and Viral
Name 6 sub categories of chemical hazards
Gases, vapors, mists, fibers, fumes, dust
Name 2 sub categories of ergonomic hazards
Physiological, and psychological
Name 8 sub categories of physical hazards
Fire/explosion, noise, vibration, heat/cold, pressure, radiation, falls/falling objects, and sharp objects.
What are the 2 types of radioactive hazards?
Ionizing and non-ionizing
When lifting how far apart should your feet be?
Shoulder width
When lifting Bend your _______
Knees
When lifting keep the load ______ to your body
Close
What is a confined space?
An enclosed or partially enclosed space having restricted access and egress(a way out).
What are the safety procedures for working in confined spaces?
Prior to entering use a gas detector.
Monitor the air continually (can change quickly)
If necessary disconnect or isolate pipelines.
Conduct a meeting to prepare before the job.
Keep gas cylinders outside when not in use.
Ignite and extinguish torches outside.
Name 4 types of respirators
Air purifying respirator
Airline respirator
Self-Contained Breathing Apparatus
Emergency escape breathing apparatus
When can you not use a air purifying respirator
In an atmosphere that is immediately dangerous to life and health
Name 2 types of airline respirators
Continuous flow
Pressure demand
What type of respirator supplies the wearer with the highest level of respiratory protection?
Self-Contained breathing apparatus
An Emergency escape breathe by apparatus is designed to give you how many minutes of air?
5 to 10 minutes
You suspect a fellow worker is overcome by hydrogen sulphide gas or some other lethal substance. What is the first thing you do?
Put on your own breathing apparatus
Hydrogen sulphide has what sent?
Rotten eggs
Who is responsible to ensure all required PPE is used?
You and your employer
What are warning signs you should be using hearing protection?
Have to raise your voice to speak to someone 3 feet away
You develop a ringing or buzzing in your ears
When you get in your vehicle in the morning you have to turn down the radio volume because it is too loud
When should a full face visor be worn?
Grinding or chipping
Name the 3 elements of fire
Fuel
Oxygen
Heat ignition
Name 2 types of fuel (element of fire)
Stable fuel
Unstable fuel
What is the difference between stable and unstable fuel
Stable fuel do not react when exposed to air, water, heat, shock or pressure under normal conditions
Unstable fuels chemically react or become self-reactive under these conditions
What is a piloted ignition?
Ignition achieved by adding an ignition source such as a flame
What is auto-ignition?
Occurs when temperature is raised to sufficiently dry finite a gas-air or vapor-air mixture
Name 5 classifications of fire
Class A - Ordinary combustible Class B - Flammable liquids or gases Class C - Electrical Class D - Combustible metals Class K - Combustible Oil or Grease
How do you extinguish a combustible oil or grease (type K)?
Wet chemical
How do you extinguish a combustible Metal (type d)?
Dry powder
How do you extinguish a fire where electricity is present? (Type c)
Carbon dioxide
Regular dry chemical
Purple K dry chemical
Multi purpose dry chemical
How do you extinguish a flammable liquid or gas? (Type b)
Foam Carbon dioxide Regular dry chemical Purple me K dry chemical Multi purpose dry chemical
How do you extinguish ordinary combustibles ? (Type a)
Water
Foam
Multi purpose dry chemical
The side rails of every ladder shall extend what minimum distance above any platform or landing?
1 meter
When setting an extension ladder how far out should the ladder be set?
1/4 of the height.
4 m high equals 1 m out
What is a the minimum height of a guardrail on a scaffold?
900 mm above floor level
What is a toe-board?
Protective barrier placed near or on the ground or walking surface. Prevents tools from falling off scaffolding.
What is the platform height that requires a toe board and a guard rail to protect those working below?
3 meters
What is the minimum distance from the edge of the trench that the material removed from an excavation (spoil pile) must be kept?
1.2 meters
When is it t necessary to install guardrails on a platform?
Above 3 meters or there are those working below.
When is it possible for workmen to remain on scaffolds while they are being moved?
Never
Planks on a scaffold shall extend a minimum of _____ mm and not more than _____ mm beyond all edges.
150 mm min
300 mm max
