Fire
What are the types of fire extinguishers
What is
Class A,B and C
Name different ways to recognize potential health hazards
What is
•Visible material in the air – If you see a visible cloud of vapor or particles, there maybe an exposure potential.
•Settled Dust – Chemical dust on the ground or other surfaces, it probably got there by settling out of the air. If disturbed, settled dust can become airborne again.
•Odor – If you smell a chemical, you are inhaling it. However some chemicals can be smelled at levels well below those that are harmful.
What is the LEL of natural gas
What is 4.5%
The purpose of a JHA is to
What is
•identify hazards associated with the daily tasks performed.
What must be on the jobsite to identify hazard and put controls in place for excavations
What is
A competent person
Fire extinguishers must be inspected when?
What is
Before use and monthly by the user
Annually by a licensed technician
What tool does IFS use to prevent silica exposure
What is
The silica hazard evaluation checklist
What is the UEL of natural gas
What is 14.5%
JHA meetings must be conducted
What is
on site, prior to the start of work each day.
When must a competent person inspect an excavation
What is
•If employee exposure can be reasonably anticipated
•Daily
•Prior to start of work
•As needed throughout shift
•After every rainstorm
•OR other hazard increasing occurrence
HOW TO USE AN EXTINGUISHER
What is
•Pull Pin
•Aim at the base of the fire from about 8 feet away
•Squeeze handle
•Sweep from side to side at the base of the fire until it is out
How do we control silica exposure
What is
By using the wet method
Controlled burning of natural gas is accomplished by
•Controlling gas pressure
•Controlling the gas-air mixture
•Venting equipment properly
Name the three outcomes of a STKY incident
What is
Life-Threatening
Life-Altering
Fatal
What must be filled out prior to entering any excavation 4' or greater
What is
A safe excavation entry permit
Most extinguishers last approximately how long
What is
Most extinguishers only last about 10 to 18 seconds
What does ACM stand for
What is
Asbestos Containing Material
Rapid and uncontrolled combustion can result in
What is
•an explosion or natural gas fire that endangers life and property
Managing Prevention & Controls to Create Capacity is accomplished by
What is
A focus on preventing incidents and putting controls in place to safely absorb them, if they do occur, is the ideal balance.
What is the 2,4,5 rule
What is
Spoils and tools must be a minimum of 2' away from the edge of the excavation
Excavations greater than 4' require a ladder
Excavations greater than 5' require a trench box or hydraulic shoring
What are the components of the fire triangle
What is
Fuel
Heat
Oxygen
If you suspect a material contains asbestos never:
What is
•Sand it
•Cut it
•Drill through it
Carbon monoxide can result from:
What is
•Insufficient air for complete burning
•Improper ventilation
•Faulty appliances
Who has the authority (obligation) to STOP WORK
What is
All employees
What must accompany any trench box or hydraulic shoring system
What is
the tabulated data for the employee protection system