¿Qué es un sistema D-X?

a. Un sistema de aire acondicionado con agua fría
b. Un sistema de refrigeración de expansión directa
c. Un enfriador centrífugo de alimentación directa
d. Una máquina de absorción de amoníaco


b. Un sistema de refrigeración de expansión directa

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The exponential curve is divided into ____ time constants.

a. five b. six c. seven d. eight

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Refer to the accompanying figure. Briefly explain the mechanism for keeping the circuit intact after the start button is released.



What will be an ideal response?

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The start and termination of the defrost mode is usually based on _____.

a. time and/or coil temperature b. ice thickness and/or time c. suction pressure and/or coil temperature d. suction pressure and/or time

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What is stress, and what are conditions that can lead to stress?

What will be an ideal response?

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