Question

8.) the proportion of time that a welder can operate without overheating is know as its
a.) ac/dc
b.) aws classificaiton
c.) duty cycle
d.) voltage drop
9.) a chipping hammer is used to
a.) prepare edges for welding
b.) remove scale from steel
c.) remove slag
d.) temper beads
10.) an organization of people and agencies interested in promoting welding is the
a.) aws
b.) epa
c.) sae
d.) wpa

Explanation:

• Question 8: The duty cycle of a welder is defined as the proportion of time it can operate without overheating. AC/DC refers to alternating current/direct current types, AWS classification is a welding - related standard classification system, and voltage drop is related to electrical potential differences.
• Question 9: A chipping hammer is specifically used to remove slag (a by - product of welding) from the welded joint. Preparing edges for welding is usually done with tools like grinders or shears, removing scale from steel is often done with descaling tools, and temper beads are related to a welding technique rather than what a chipping hammer does.
• Question 10: The American Welding Society (AWS) is an organization focused on promoting welding. The EPA (Environmental Protection Agency) is focused on environmental protection, SAE (Society of Automotive Engineers) is related to automotive engineering, and WPA (Works Progress Administration, historical) was a New Deal agency not related to modern welding promotion.

Answer:

• 8. C. duty cycle
• 9. C. remove slag
• 10. A. AWS