Q3 M4 - INSTALLING SIGNAL & ALARM SYSTEM: ELECTRIC BUZZER, ELECT
Authored by Sloth Master
Biology
5th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
It is a signaling device which produces continues ringing sound when electrical energy is applied.
Electric bell
Electric buzzer
Electric chime
All of the above
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
It is a signaling device which produces a loud buzzing sound when activated by a push button.
Electric bell
Electric buzzer
Electric chime
All of the above
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
It is a signaling device which produces a pleasant musical sound when connected to the electrical source.
Electric bell
Electric buzzer
Electric chime
All of the above
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
It consists of a coil of wire wound around an iron core.
Electromagnet
Armature
Contact spring
Adjusting screw
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A strip of metal that is located near the electromagnet.
Electromagnet
Armature
Contact spring
Adjusting screw
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A small strip of flexible metal that is attached to the armature.
Electromagnet
Armature
Contact spring
Adjusting screw
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
It is a pointed screw which acts as the contact switch.
Electromagnet
Armature
Contact spring
Adjusting screw
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