Solid-state relays normally have control voltages of _____.

a. 120VAC to 240VAC
b. 5A to 25A
c. 3V to 32V
d. 35V to 50V


c. 3V to 32V

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What is the main function of the impeller in a centrifugal chiller?

a. Make the refrigerant flow faster b. Cool the refrigerant c. Vaporize the refrigerant d. Raise the pressure of the refrigerant

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Pausing for ____________________ from the client is one way that the presenter confirms the client's understanding of the proposal

Fill in the blank(s) with correct word

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Technician A says that globular metal transfer is the type of metal transfer recommended for GMAW aluminum welding. Technician B says that aluminum welding wire of the 3000 series is the wire type recommended for automotive welding. Who is correct?

A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B

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A parallel circuit only has one path for current flow.

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

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