Three-phase motors can be 120 volts.
Answer the following statement true (T) or false (F)
False
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If a malfunction occurs during operations, the first thing the operator should do is _____.
a. get off the crane b. lower the boom c. turn off the crane d. lower the load if possible
The total amperage in a parallel circuit will be the sum of the individual circuits.
Answer the following statement true (T) or false (F)
A(n) __________-colored switch cover is used to identify an oil burner safety switch.
a. orange b. red c. blue d. yellow
Why might there be a negative pressure on the condensate outlet in a coil operating at a positive static pressure?
A) A positive static pressure is really negative compared to atmospheric pressure. B) The air velocity can create a negative pressure. C) The algae collecting in the drain pan creates a negative pressure. D) The draining water creates an internal pressure in the drain line.