When a code 111 is displayed on MD/SM, which of the following should be true?

A. No logged historic codes
B. No active codes
C. No ECM to J1939 communication
D. The ECM should be replaced


Answer: B

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

All manufacturers use the same electrical symbols in their schematics.

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The main advantage of the balled and burlapped method is the initial lower cost per plant to the grower

Indicate whether the statement is true or false

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The main drawback of the extended plenum system is that the velocity of the air is lower as the air reaches the last takeoffs on the extended plenum.

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

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A self contained recovery device:

A) Can only be used on systems that are sold by independent distributors. B) Relies on the system the refrigerant is being recovered from for its operation. C) Is used with systems that are not connected to the power grid. D) Does not rely on the system the refrigerant is being recovered from for its operation.

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