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Author Archives: Anonymous

You can obtain jogging control with the use of a selector sw…

You can obtain jogging control with the use of a selector switch.

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High impedance voltmeters can indicate some amount of voltag…

High impedance voltmeters can indicate some amount of voltage caused by the capacitance of the ground and induced voltage produced by surrounding magnetic fields. These are generally referred to as ____________________ voltages.

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Motors of 1 horsepower or less are considered ______________…

Motors of 1 horsepower or less are considered ____________________ horsepower.

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When a component is used to perform the function of stop in…

When a component is used to perform the function of stop in a control circuit, it will generally be connected in ____________________ with the motor starter coil.

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Mechanically held contactors and relays are often referred t…

Mechanically held contactors and relays are often referred to as ____________________ contactors or relays.

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Line voltage devices may have contacts rated for 15 to _____…

Line voltage devices may have contacts rated for 15 to ____________________ amperes.

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When M coil energizes, only the first M contact changes posi…

When M coil energizes, only the first M contact changes position.

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If R coil energizes, all R contacts change position.

If R coil energizes, all R contacts change position.

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____________________ push buttons combine the operation of a…

____________________ push buttons combine the operation of a selector switch and push button in the same unit.

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When one side of the secondary winding of a control transfor…

When one side of the secondary winding of a control transformer is grounded, the control system is referred to as a(n) ____________________ system.

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