Job Site Exposure Hazards
Lead is a fairly common element
True or False
True
When under heat stress you should drink alcoholic and caffeinated drinks.
True or False?
False
What is a wind sock?
A cloth cone open at both ends mounted in a high place to show the direction wind is blowing.
A fire needs what three things to start?
Fuel, Oxygen and Heat
What do welders use to protect their eyes during welding?
Welding masks.
How are Bloodborne Pathogens spread from person to person?
Overheating is also known as Hyperthermia
True or False?
True
Who is a WELDING CURTAIN designed to protect?
Those who are not directly involved a nearby welding operation.
The best way to prevent any possible fire is to remove what three things from risky areas?
Fuel, Oxygen and Heat.
Define Arc welding.
The process in which metals are joined using a high intensity electric arc.
How do you properly protect yourself from chemicals that are acidic solvents or are flammable?
By wearing proper PPE
How many layers of clothes should be worn to protect oneself from cold stress?
1, 2 or 3 ?
2
What is a FLASH POINT?
The TEMP at Which fuel gives off enough gasses to burn
Combustible metals such as magnesium or sodium require what type of fire extinguisher?
A B C or D
D
What are two ways a compressed gas cylinder may be stored?
Inside a secure container or secured to a wall with chains.
What are the symptoms of excessive radiation exposure?
Skin burns, nausea, vomiting, Infertility and cancer
What are the symptoms of hypothermia?
A drop in body temp, fatigue or drowsiness, uncontrollable shivering, slurred speech, clumsy movements and irrational or confused behavior.
What is a FLASH BURN?
The damage done to the eyes after an exposure to UV light from arc welding.
What could happen if the wrong extinguisher is used on a type D fire?
The fire could spread or even explode.
Why would someone need a hot work permit to work in an area?
Because that area has proven to be a fire hazard.
In case hazardous materials are released into the air how do you determine the direction of the wind?
By looking at a wind sock
Swimming or any other physical activity during hypothermia reduces your survival time by what percentage?
50%
Define BRAZING
A process that uses temps up to 800F to melt a filler metal to join metal pieces together.
How are extinguishers without gauges determined if they have a charge?
By weighing them.
How is Oxyfuel created?
By combining Oxygen and Acetylene