The characteristics of both thyristors or IGBTs are compatible to the operation of a PWM-type drive.

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


False

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The compressors used in low pressure chillers are the ____ type.

A. reciprocating B. scroll C. screw D. centrifugal

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A load study that calculates the load for each individual room as well as the entire house is called:

A) A unified load calculation. B) A room-by-room load calculation. C) A composite load calculation. D) A shell load calculation.

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Faster cutting can be obtained from which tooth pattern because of the positive rake angle?

A) Standard B) Raker C) Skip D) Hook

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A vehicle battery is consistently low on voltage. Technician A says to disconnect the battery with the engine running to test for proper alternator output. Technician B says that a loose alternator belt may cause this problem. Who is right?

A) Technician A only B) Technician B only C) Both A and B D) Neither A nor B

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