The addition of cerium to catalytic converters provided what benefit?
A) Stores oxygen to help with the oxidation process
B) Reduction of NOx
C) Purification of NOx
D) None of these
A
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La herramienta que se muestra en la figura se utiliza para:
a. cortar y biselar tuberías. b. roscar tuberías. c. girar la tubería en la máquina roscadora. d. escariar tuberías.
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Information that might be included in a specification includes:
A) Electrode B) Weld procedure C) Material specification D) All of the above
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When using hand signals, always _____
A) stand on something at least two feet in height B) wear reflective gloves C) maintain eye contact with the operator D) make sure you can hear the backup alarm
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Express 3600 inches as yards.
A. 50 B. 75 C. 88 D. 100
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