2nd Summative Test

These are hand operated electromechanical devices used for switching circuits. The switch operation actuated by a lever that is pushed through a small arc. Moving the lever back and forth opens and closes an electrical circuit, while the lever position gives a quick visualization of the circuit status.

• Foot switch

• Mechanical Switch

• Toggle switch

• Wall switch

These are and operated electromechanical devices used in residential and commercial buildings most commonly for lighting control. They are also used to control ceiling fans and electrical outlets.

• Foot switch

• Mechanical switch

• Toggle switch

• Wall switch

These are hand operated electromechanical devices used for switching circuits. The switch operator is in the form of a slider that moves from position to position to control the circuit status.

• Foot switch

• Slide switch

• Toggle switch

• Wall switch

These are hand operated electromechanical devices used for switching circuits and selecting functions. An electrical rotary switch can be two position, on-off or can have multiple discrete stops.

• Rotary switch

• Slide switch

• Toggle switch

• Wall switch

What type of switch referred to as push switches and hand operated electro-mechanical devices used for switches and switching circuits. They are the most common variety of switch used on industrial control panels.

• Rotary switch

• Magnetic switch

• Toggle switch

• Wall switch

These are electro-mechanical devices that are hand-operated and used to switch a circuit on and off or step a circuit through increasing power levels.

• Foot switch

• Magnetic switches

• Pull chain switch

• Push button switch

These are also known as reed switches, are a type of electrical switch in which the switch closure mechanism is operated by the presence or absence of a magnetic field.

• Foot switch

• Magnetic switches

• Pull chain switch

• Push button switch

These are electro-mechanical device used to detect fluid pressure and provide output signals to a controller. They often employ a diaphragm as the sensing means.

• Pressure Switch

• Magnetic switches

• Pull chain switch

• Push button switch

This is a simple switch ON/OFF switch. It is also called as One-Way switch.

• DPDT (Double Pole Double Throw)

• SPDT (Single Pole Double Throw)

• SPST (Single Pole Single Throw)

• DPST (Double Pole Single Throw)

This switch is basically two SPST switches in one package and can be operated by a single lever. This switch is mostly used, where we must break both ground and lines at the same time.

• DPDT (Double Pole Double Throw)

• SPDT (Single Pole Double Throw)

• SPST (Single Pole Single Throw)

• DPST (Double Pole Single Throw)