Question

you wish to switch two hot so that the power is either off or provided to either one or two loads. to do this, you should use a/an ----- switch. a. dpst b. spdt c. dptt d. dpdt

Answer 1

ANS - (D) DPDT

Explanation:

DPST refers to Double Pole Double Throw. A Double Pole Double Throw (DPDT) switch is a switch that has 2 inputs and 4 outputs; each input has 2 corresponding outputs that it can connect to.

Double Pole Double Throw (DPDT) 3wtch Input Terminale output Terminals

Each of the terminals of a double pole double switch can either be in 1 of 2 positions. This makes the the double pole double throw switch a very versatile switch. With 2 inputs, it can connect to 4 different outputs. It can reroute a circuit into 2 different modes of operation.

Below is an example of a circuit which utilizes a double pole double throw switch

lamp 白白-- paaker

You can see above how a double pole double throw switch can allow a circuit to be in 1 of 2 modes. When the DPDT switch is switched one way (flipped upward in the diagram), the lamp and buzzer are both on, while the LED and speaker are off. When the DPDT switch is switched the other way (flipped downward), the LED and the speaker are both on, while the lamp and buzzer are off.

This shows the dynamic 2-mode capacity that DPDT switches allow, allowing control of 4 different devices (with 2 operational modes).