Switches and Circuit Protectors

When installing a switch on a vertical surface, such as "On/Off" switch where the OFF should be done so that

"OFF" is down and "ON" is up

Switches rated for use at _________ VDC or more, and at_______ amp or more, generally have silver contacts

28, 1.0

This term defines a diodes positive electrode

Anode

A circuit breaker or fuse should be located as close as possible to the

Bus

Circuit breakers are designed to protect

Conductors

Circuit Breakers and Current Limiters are activated by

Current

These types of switches are used to obtain a reasonable switches service life

Derated

What is used as an electron check valve in a circuit

Diode

TRUE or FALSE: Circuit breakers remove current when the wire/conductor fails

FALSE

TRUE or FALSE: Transistors are one-way electron check valves

FALSE

TRUE or FALSE: a relay is a switch with a moveable core

FALSE

A relay is a ______ operated switch

Magnetically

Switches that must be held in the "On" or "Off" position

Momentary switch

These types of circuits require a switch to be derated

Motor, Lamp, and Inductive

Name the 3 parts of a Single Pole Single Throw (SPST) switch

Pole, Lever, Contact

A _________ PN Junction Diode has high resistance

Reversed Biased

This switch has one pole and two throw

Single Pole Double Throw (SPDT)

A _______ is a device for opening or closing

Switch

TRUE or FALSE: a solenoid is a relay with a moveable core

TRUE

This type of diode is used as a voltage regulator

Zener

"Slow Blow" fuse will

absorb an overload before opening the circuit

A Silicon PN Junction Diode is biased by

applying 0.7 VDC across it

Electrical switches must be "derated" when they are used with certain types of electrical loads to prevent

arcing or welding across the switch contacts

"Fast Blow" current limiters will

immediately remove current upon detecting an overload

A circuit control device is one which

starts or stops the flow of current