In an autotransformer starter, what happens when the START button is pressed?

What will be an ideal response?


When the START button is pressed a circuit is completed to the coil of control relay CR, causing all CR contacts to close.

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Una prueba rápida que se puede hacer para determinar si una instalación es buena se conoce como prueba de _____.

a. adecuación b. mantenimiento c. resistencia al aislamiento d. ensayos de acción/inhibición

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In acid soils, ____________________ is needed to raise the pH value for efficient production of crops

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

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Which range of the electromagnetic spectrum is less susceptible to interference from sources of visible light?

A. Ultraviolet B. Gamma light C. Infrared D. Yellow Light

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How is the refrigerant charge normally checked on air conditioning systems that use a fixed orifice expansion device?

A) Feel to see if the suction line is cold and the liquid line warm B) Adjust the charge to achieve a 40°F saturated evaporator temperature C) Subcooling D) Superheat

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