10. Weld appearance indicates both correct and correct A) Lead, limit of amperage B) Tension, timing C) Angle, argon level D) Process, procedure 11. Burning oil, paint,and other flammable liquids are __ fires. A) Spill B) Common C) Typical shop D) Class B 12. Most laboratory accidents are caused by: A) Carelessness B) Air pressure leaks C) Open flames D) Liquids 13. Welding test coupons are scored visually for: A) Angle of electrode B) Middle of plate position C) Wear patterns D) Slag inclusions

Question

10. Weld appearance indicates both correct and correct A) Lead, limit of amperage B) Tension, timing C) Angle, argon level D) Process, procedure 11. Burning oil, paint,and other flammable liquids are __ fires. A) Spill B) Common C) Typical shop D) Class B 12. Most laboratory accidents are caused by: A) Carelessness B) Air pressure leaks C) Open flames D) Liquids 13. Welding test coupons are scored visually for: A) Angle of electrode B) Middle of plate position C) Wear patterns D) Slag inclusions

Answer 1

10. D) Process, procedure11. D) Class B12. A) Carelessness13. D) Slag inclusions

Answer 2

## Step1For question 10, we need to identify the factors that indicate the correct appearance of a weld. The correct answer is D) Process, procedure. This is because the process and procedure of welding are crucial in determining the appearance of the weld.## Step2For question 11, we need to identify the type of fire that is caused by burning oil, paint, and other flammable liquids. The correct answer is D) Class B. This is because Class B fires are those that involve flammable or combustible liquids.## Step3For question 12, we need to identify the primary cause of most laboratory accidents. The correct answer is A) Carelessness. This is because carelessness is a common cause of accidents in any laboratory setting.## Step4For question 13, we need to identify what welding test coupons are scored visually for. The correct answer is D) Slag inclusions. This is because slag inclusions are a common issue in welding and can be visually identified.

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