#1
What does PPE stand for in welding safety?
Personal Protection Equipment
ExplanationProtective gear worn to minimize exposure to hazards during welding.
#2
Which of the following is NOT a common welding hazard?
Emotional distress
ExplanationPsychological condition, not a physical hazard typically associated with welding.
#3
What is the primary function of a welding helmet?
To protect the eyes and face
ExplanationProtective gear that shields the welder's face and eyes from sparks, heat, and light.
#4
What type of fire extinguisher should be used for welding-related fires?
Type B
ExplanationDesigned to extinguish fires fueled by flammable liquids, including those from welding.
#5
What is the purpose of a welding respirator?
To protect against toxic fumes
ExplanationFilters out harmful gases and particulates, safeguarding the welder's respiratory system.
#6
What is the recommended distance between a welding arc and unprotected skin?
6 inches
ExplanationMaintains a safe distance to prevent burns from radiant heat and sparks.
#7
What is the purpose of a welding ground clamp?
To provide a path for the welding current
ExplanationEstablishes an electrical connection between the workpiece and the welding machine for efficient current flow.
#8
What does the term 'arc flash' refer to in welding?
A sudden burst of light and heat
ExplanationAbrupt release of intense energy during welding, posing a risk of burns and eye damage.
#9
What should be done if a welder experiences 'flash burn'?
Seek medical attention
ExplanationImmediate medical care to alleviate pain and prevent further damage to the eyes.
#10
Which type of welding produces ozone gas, which can be harmful?
Plasma welding
ExplanationProduces ozone as a byproduct, necessitating proper ventilation and respiratory protection.
#11
What does the term 'back purge' refer to in welding?
A technique to prevent oxidation on the back side of a weld
ExplanationUses inert gas to displace oxygen, preventing contamination and ensuring quality welds.
#12
What is the main risk associated with welding in a confined space?
Inhalation of toxic gases
ExplanationLimited airflow increases the concentration of harmful gases, posing respiratory hazards.