Coil corrosion that results from two dissimilar metals coming in contact with an electrolyte is called:

A) Electrolytic. B) Galvanic. C) General corrosion. D) Hygroscopic.


B

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Sequence control can be achieved by several methods.

Answer the following statement true (T) or false (F)

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Psittacine beak and feather disease (PBFD) is caused by a _____

a. congenital beak deformity b. virus c. gram-negative bacteria d. yeast infection in the crop

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To determine if the contacts inside a sequencer are faulty, the technician should energize the relay and use an ohmmeter set to the RX1 scale. Which of these resistance readings indicates that the sequencer must be replaced?

A) Greater than 0.1 B) Between 0 and 0.1 C) 0 D) Less than 0.1

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Allen-Bradley supports Structured Text (ST), but does not support Instruction List (IL) because of its ________

A) Unacceptance by the user community B) Marginal value in automated process applications C) Mnemonic instructions D) Difficulty to troubleshoot

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