Technician A says weld-through primers are recommended by manufacturers to avoid galvanic corrosion when welding aluminum. Technician B says weld-through primers are not recommended when working with aluminum. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
B. Technician B only
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How deep are the threads to go into the two holes that are drilled with a #7 drill bit?
Review drawing number 522923A0A and then answer the following questions.
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Which of the following is the primary cause of corrosion in ferrous piping systems?
A) Alkalinity. B) Oxygen. C) Calcium salts.
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What was the first major U.S. city to require pasteurization of milk?
a. Los Angeles c. Detroit b. Boston d. Chicago
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Feedforward control is seldom used except in combination with feedback control.
Answer the following statement true (T) or false (F)
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