Cognitive Learning Theories

What are common air contaminants in welding?

• Sulfur dioxide

• Metal fumes, carbon monoxide, ozone, nitrogen oxides, and particulate matter.

• Hydrogen gas

• Ammonia

What type of radiation is a hazard in welding?

• Radioactive radiation

• Infrared radiation

• Ultraviolet (UV) radiation

• Gamma radiation

What are the main causes of burns and fires during welding?

• Welding in a completely sealed environment

• Main causes of burns and fires during welding include flammable materials, improper equipment handling, lack of protective gear, inadequate ventilation, and electrical faults.

• Using water to cool the welding area

• Wearing cotton clothing instead of protective gear

How can electrical shock occur in welding operations?

• Using a gas mask while welding

• Welding in a completely dry environment

• Wearing sunglasses instead of safety goggles

• Electrical shock can occur due to contact with live parts, inadequate insulation, wet conditions, faulty equipment, and lack of PPE.

What types of PPE are essential for eye protection in welding?

• Regular sunglasses

• Safety mask without eye protection

• Safety goggles or glasses and a welding helmet with a filter lens.

• Face shield without a filter

Which PPE is necessary for head protection while welding?

• Safety goggles

• Welding helmet or face shield

• Hard hat

• Ear protection

What type of hearing protection should be used in welding environments?

• Earmuffs or earplugs rated for high noise reduction.

• Standard earbuds not designed for high noise

• Noise-cancelling headphones without a noise rating

• Open-back headphones for better sound quality

What skin protection is recommended for welders?

• Leather boots without insulation

• Flame-resistant clothing, gloves, and helmets with face shields.

• Cotton t-shirts and shorts

• Regular sunglasses

What body protection is essential when welding?

• Safety goggles and earplugs

• No protection needed at all

• Welding helmet, gloves, and flame-resistant clothing.

• Regular clothing and sneakers

What respiratory protection is required for welding fumes?

• No respiratory protection needed

• A respirator with a P100 filter or a powered air-purifying respirator (PAPR) is required for welding fumes.

• A standard dust mask

• A surgical mask