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Grade 9 2nd PT

Quiz by Homer F. Santos

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50 questions
Show answers
  • Q1
    The first incandescent electric light was made in 1800 by______
    Lewis Latimer
    Thomas Edison
    Humpry Davy
    Joseph Swan
    30s
  • Q2
    An American Inventor experimented with different filament.He eventually produced a bulb that could glow for over 1500 hours.
    Joseph Swan
    Humpry Davy
    Lewis Latimer
    Thomas Edison
    30s
  • Q3
    Who invented the Tungsten Filament,which lasted longer than other filament.
    William Coolidge
    Thomas Edison
    Humpry Davy
    Joseph Swan
    30s
  • Q4
    The metal wires that glow brightly when electricity flows through them.
    Connecting wires
    Electrical Contacts
    Glass envelope
    Coiled Tungsten Filament
    30s
  • Q5
    The wires that carry electricity from the bulbs electrical contact to the filament.
    Connecting wire
    Tungsten filament
    Glass envelope
    electrical contacts
    30s
  • Q6
    The metallic base of the bulb that connects to the lecyrical contacts of the lamp.
    Glass envelope
    Filament
    electrical contact
    Connecting wires
    30s
  • Q7
    The thin layer of of the glass that surrounds the light bulb mechanism.
    Glass envelope
    Filament
    Connecting wires
    Electrical Contacts
    30s
  • Q8
    The glass that insulates the bulb fuses located in the stem of the bulb
    Bulb
    Glass fuse enclosure
    Glass Bulb
    Glass envelope
    30s
  • Q9
    The Threaded Base of the bulb that secures it to the lamp.
    Screw Cap
    Support wires
    Electrical Contacts
    Filament
    30s
  • Q10
    Wires that physically Hold up the Filament.
    Electrical contacts
    Support wires
    Screw cap
    Filament
    30s
  • Q11
    The tube that originally projects beyond the bulb.
    Fuse
    Screwcap
    Base
    Exhaust tube
    30s
  • Q12
    Protects the lamp and circuit by blowing if the filament arcs.
    Exhaust tube
    Filament
    Fuse
    Base
    30s
  • Q13
    Glass is heated during manufacturing ans support wires stuck in to it.
    Stem Press
    Fuse
    Exhaust Tube
    Button
    30s
  • Q14
    It is the combination of nickel iron alloy core and a copper sleeve
    Stem press
    Button
    Fuse
    Exhaust Tube
    30s
  • Q15
    It is made of Molybdenum wires that support the filament
    Support wires
    Exhaust Tube
    Button
    Fuse
    30s

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