Welding Quiz

What are weld coupons used for?

• A) To join two pieces of metal

• B) To measure the thickness of metal

• C) For practice or to produce test welds for qualifications

• D) To clean the welding surface

How is the "effective throat" calculated?

• By measuring the leg lengths of the largest right triangle.

• By finding the shortest distance from the weld root to its face.

• By subtracting the weld face’s convexity from the actual throat value.

• By measuring the perpendicular distance from the hypotenuse of the profile’s imaginary right triangle to the joint root.

What must the weld area be free from in fillet welds?

• Rust

• Dross

• Paint

• Oil

Which of the following is NOT a defect in fillet welds?

• Insufficient throat

• Excessive undercut

• Proper overlap

• Incomplete fusion

What additional protective gear should be worn with goggles or safety glasses?

• A scarf

• A full face shield, helmet, or hood

• A baseball cap

• A sun hat

What type of shoes or boots should be worn for safety?

• High-top safety shoes or boots

• Sandals

• Running shoes

• Dress shoes

What should you never carry in your pockets to prevent fire or explosion?

• Matches or gas-filled lighters

• Keys and coins

• Pens and pencils

• Mobile phones

What should never be released in large amounts into the work environment?

• Water vapor

• Fuel gas

• Oxygen

• Carbon dioxide

What should be set up before beginning work in a confined space?

• A lighting system

• A confined space ventilation system

• A sound system

• A cooling system

What is the risk of breathing pure oxygen while working?

• It can cause fatigue

• It can lead to fire hazards

• It can make you sleepy

• It can cause dehydration