A magnetic contactor or relay is basically an electrical ____ that closes a set of contacts when the coil is energized.

A. bar magnet
B. pole
C. dipole magnet
D. solenoid


Answer: D

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Clamping circuits with a short stroke cylinder are potential applications for the use of a ____________________; especially if the loss of power to the clamps during machine operation could cause parts to be released and potentially injure an operator.

Fill in the blank(s) with the appropriate word(s).

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Los números de catálogos de elementos especificados en los planos eléctricos se pueden encontrar en:

a. las notas. b. el bloque de títulos. c. la lista de materiales d. la placa de datos de la unidad.

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Which compressor type draws refrigerant gas in through the inlet port into voids created by turning rotors?

A) A reciprocating compressor B) A rotary compressor C) A screw compressor D) A scroll compressor

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A vehicle has a film thickness of 3.5 mils before refinishing. After refinishing, it has an average film thickness of 9 mils. The average amount of basecoat is 2 mils. How much of the 9 mils of film thickness can be removed to maintain 2 mils of new clearcoat?

What will be an ideal response?

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