Examlex
The sequence of letters that is used to classify star surface temperatures, as determined by relative spectral absorption line strengths, in order of DECREASING temperature, is
Pushbutton
A simple switch mechanism for controlling some aspect of a machine or a process, typically operated by pressing a button.
Three-Wire
Refers to an electrical circuit or cable that consists of three conductors, which can be used in various applications including power supply and control circuits.
Motor Starter
A device or system that controls the use of electrical power to equipment, especially motors, preventing damage by controlling the electrical power for starting the motor.
Maintained Contact
A switch mechanism that keeps or maintains its position (either on or off) until manually changed or actuated.
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