Millwright - 2nd Year - Electric Arc
Welding Exam Questions and Answers
100% score Latest update 2026
What 2 types of front are available for welding helmets? -
correct answer ✅Fixed and flip
How do lenses protect your eyes? -
correct answer ✅By absorbing ultraviolet, infrared and visible light
What materials should face protection be made of? -
correct answer ✅Plastic, never glass
How are welding lenses designated? -
correct answer ✅Numbers 9 through 12 and 14
When determining the appropriate shade of welding lens, where
should you start? -
correct answer ✅The darkest shade first
What should be worn with flash glasses when welding? -
correct answer ✅Face shield
,Millwright - 2nd Year - Electric Arc
Welding Exam Questions and Answers
100% score Latest update 2026
What are some conditions that may contribute to the risk of electric
shock? -
correct answer ✅1. High temperature
2. High humidity
3. Damp clothing
4. Working in wet conditions
What are the two classifications of welding machines? -
correct answer ✅1. Constant Current
2. Constant Voltage
How does a constant current machine work? -
correct answer ✅Maintains a set amperage but varies the voltage
How does a constant voltage machine work? -
correct answer ✅Maintains a set voltage but varies the amperage
What type of welding machine classification does a Shielded metal
arc welding (SMAW) machine fall under? -
correct answer ✅Constant Current
, Millwright - 2nd Year - Electric Arc
Welding Exam Questions and Answers
100% score Latest update 2026
What type of welding machine classification does a Gas metal arc
welding (GMAW) machine fall under? -
correct answer ✅Constant Voltage
What are the 3 types constant current power sources? -
correct answer ✅1. Transformers
2. inverters
3. Generators
What does an inverter do? -
correct answer ✅It rectifies incoming AC to DC, Inverts DC to high
frequency AC, and rectifies high frequency AC to DC for smooth
welding
What types of generators are available? -
correct answer ✅Electric motor generators and AC or DC engine-
driven generators.
Welding Exam Questions and Answers
100% score Latest update 2026
What 2 types of front are available for welding helmets? -
correct answer ✅Fixed and flip
How do lenses protect your eyes? -
correct answer ✅By absorbing ultraviolet, infrared and visible light
What materials should face protection be made of? -
correct answer ✅Plastic, never glass
How are welding lenses designated? -
correct answer ✅Numbers 9 through 12 and 14
When determining the appropriate shade of welding lens, where
should you start? -
correct answer ✅The darkest shade first
What should be worn with flash glasses when welding? -
correct answer ✅Face shield
,Millwright - 2nd Year - Electric Arc
Welding Exam Questions and Answers
100% score Latest update 2026
What are some conditions that may contribute to the risk of electric
shock? -
correct answer ✅1. High temperature
2. High humidity
3. Damp clothing
4. Working in wet conditions
What are the two classifications of welding machines? -
correct answer ✅1. Constant Current
2. Constant Voltage
How does a constant current machine work? -
correct answer ✅Maintains a set amperage but varies the voltage
How does a constant voltage machine work? -
correct answer ✅Maintains a set voltage but varies the amperage
What type of welding machine classification does a Shielded metal
arc welding (SMAW) machine fall under? -
correct answer ✅Constant Current
, Millwright - 2nd Year - Electric Arc
Welding Exam Questions and Answers
100% score Latest update 2026
What type of welding machine classification does a Gas metal arc
welding (GMAW) machine fall under? -
correct answer ✅Constant Voltage
What are the 3 types constant current power sources? -
correct answer ✅1. Transformers
2. inverters
3. Generators
What does an inverter do? -
correct answer ✅It rectifies incoming AC to DC, Inverts DC to high
frequency AC, and rectifies high frequency AC to DC for smooth
welding
What types of generators are available? -
correct answer ✅Electric motor generators and AC or DC engine-
driven generators.
