Basic Welding Principles

What type of welding requires the use of an electrode in the form of wire spools? (a)  

• Stick
• MIG
• TIG
• OxyAcetylene

What type of welding does not require electrical power? (a)  

• MIG
• OxyAcetylene
• TIG
• Stick

What type of welding does not use a gas for the process? (a)  

• OxyAcetylene
• MIG
• TIG
• Stick

What device is used to pass electrical current to the electrode when welding? (a)  

• Contact tip
• Holder
• Ground
• Clamp

Which of these should not be worn while welding? (a)  

• helmet
• mask
• gloves
• shorts

Time when current is applied to the workpiece. (a)  

• Weld time
• Squeeze time
• Hold time
• Off period

Spot welding are most commonly used in (a)  

• Ships
• Automobiles
• Airplanes
• Rafts

The body structure of the car is welded by (a)   .

• Gas welding
• Spot welding
• Induction welding
• Arc welding

For proper eye protection when arc welding, the minimum shade number should be

Mathematical Equivalence

ON

The welding area should be kept free of (a)   .

• grease, fuels and solvents
• ultraviolet rays
• infrared rays
• electrodes