Annunciator

What are the two types of Annunciator?

• gravity drop

• shutter

• reset track

• drop

• lamp annunciator

Which electrical material used to hold lamp/bulb?

• fuse

• lamp receptacle

• junction box

• outlet

It shows the circuit number, consist of shutter, electromagnet and armature.

• drop

• shutter

• gravity drop

• reset track

It is used to reset the rack and bell that makes an alarm so that the call will be determined.

• annunciator

• reset track

• shutter

• gravity drop

A momentary contact switch.

• SPST

• S3W

• PUSH BUTTON

• S4W

Which type of annunciator is composed of the drops, the bell and the reset track?

• annunciator

• gravity drop

• lamp annunciator

• drop

A wiring systems are installed for the purpose of having all calls terminated at central station. It is a device used to indicate by visual sign that transmit over electric bell called bell circuit.

• annunciator

• drop

• gravity drop

• reset track

An alarming device that produce a buzzing sound.

• bell

• buzzer

• smoke detector

The gravity drop annunciator composed of the following:

• annunciator

• drop

• bell

• reset track

• shutter

Electrical materials that is either solid or stranded with different size.

• fuse

• circuit breaker

• wire

• electrical box