Safety in Welding and Fabrication

What is the primary purpose of wearing a welding helmet?

• To protect the eyes from bright light and UV radiation

• To keep the head warm

• To improve visibility

• To communicate with colleagues

Answer explanation

The primary purpose of wearing a welding helmet is to protect the eyes from bright light and UV radiation produced during welding. This is crucial for preventing eye damage and ensuring safety while working.

Which of the following is a common hazard associated with welding?

• Noise pollution

• Burns

• Water contamination

• Soil erosion

Answer explanation

Burns are a common hazard in welding due to the intense heat and sparks produced during the process. Other options like noise pollution, water contamination, and soil erosion are not directly associated with welding.

Which type of fire extinguisher is most suitable for a welding area?

• Water

• Foam

• CO2

• Dry powder

Answer explanation

Dry powder extinguishers are suitable for welding areas as they can effectively extinguish fires involving flammable metals and other materials. They smother the fire and prevent re-ignition, making them the best choice in this environment.

What is the maximum allowable exposure limit for welding fumes according to the Health and Safety Executive (HSE)?

• 5 mg/m³

• 10 mg/m³

• 15 mg/m³

• 20 mg/m³

Answer explanation

The maximum allowable exposure limit for welding fumes set by the Health and Safety Executive (HSE) is 5 mg/m³. This limit is established to protect workers from the harmful effects of welding fumes.

What is the primary function of a welding curtain?

• To block noise

• To contain sparks and UV radiation

• To improve ventilation

• To provide privacy

Answer explanation

The primary function of a welding curtain is to contain sparks and UV radiation produced during welding. This protects both the welder and others nearby from harmful effects, making it essential for safety.

Which of the following is a common symptom of metal fume fever?

• Skin rash

• Nausea

• Hair loss

• Blurred vision

Answer explanation

Nausea is a common symptom of metal fume fever, which occurs after inhaling metal oxides. Other options like skin rash, hair loss, and blurred vision are not typical symptoms associated with this condition.

What is the purpose of a welding rod?

• To provide a filler material

• To stabilise the arc

• To cool the weld

• To clean the weld area

Answer explanation

The primary purpose of a welding rod is to provide a filler material that melts and fuses with the base metals during welding, ensuring a strong joint. Other options do not accurately describe the main function of a welding rod.

What is the primary risk of welding in a confined space?

• Noise exposure

• Limited visibility

• Oxygen deficiency

• High temperature

Answer explanation

The primary risk of welding in a confined space is oxygen deficiency. This occurs because welding consumes oxygen and can produce harmful gases, leading to a dangerous environment if ventilation is inadequate.

What is the main function of a welding electrode?

• To provide a filler material

• To stabilize the arc

• To cool the weld

• To clean the weld area

Answer explanation

The main function of a welding electrode is to provide a filler material that melts and fuses with the base metals during welding, ensuring a strong joint. Other options do not accurately describe the primary role of the electrode.

What does PPE stand for?

• Personal Performance Evaluation
• Personal Protective Equipment
• Professional Project Execution
• Public Policy Engagement