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- 1. Multiple Choice
What is a collection of interconnected electrical devices such that charge,usually electrons, can flow through it continuously without beginning or end?
circuit diagram
electric circuit
electronic components
circuit symbols
- 2. Multiple Choice
What is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, etc. in a schematic diagram of an electrical or electronic circuit?
circuit diagram
electric circuit
electronic components
circuit symbols
- 3. Multiple Choice
In Electronics, PCB stands for _________________________.
Printed Circuit Base
Passive Component Board
Printed Connection Board
Printed Circuit Board
- 4. Multiple Choice
What electronic component has this symbol?
ammeter
voltmeter
ohmmeter
galvanometer
- 5. Multiple Choice
What transducer converts electrical energy to kinetic energy (motion)?
buzzer
amplifier
motor
heater
- 6. Multiple Choice
What transducer converts sound to electrical energy?
buzzer
loudspeaker
earphone
microphone
- 7. Multiple Choice
This symbol represents ____________ logic gate.
and
nand
not
nor
- 8. Multiple Choice
What electrical component is used to step up (increase) and step down (decrease) AC voltages?
coil
motor
fuse
transformer
- 9. Multiple Choice
Which component has this as its circuit symbol?
ac supply
dc supply
open switch
closed switch
- 10. Multiple Choice
Which of the following is the symbol for capacitor?
- 11. Multiple Choice
What is the component supplies electrical energy to a circuit, where the current is continually changing direction ?
direct current supply
alternating current supply
battery
power supply
- 12. Multiple Choice
What does this symbol represent?
diode
capacitor
transistor
resistor
- 13. Multiple Choice
What is the new symbol for resistor?
- 14. Multiple Choice
What instrument is used to measure electrical resistance?
galvanometer
ammeter
voltmeter
ohmmeter
- 15. Multiple Choice
What sensitive instrument is used to measure tiny currents, usually 1 mA or less?
ammeter
galvanometer
oscilloscope
voltmeter
- 16. Multiple Choice
Which logic gate has this as its symbol?
or gate
nor gate
not gate
ex nor gate
- 17. Multiple Choice
What is the function of fuse?
It is used to connect components together for electric current to flow.
A safety device which melts if the current flowing through it is less than its specific value.
A safety device which will 'blow' (melt) if the current flowing through it exceeds a specified value.
A semiconductor devices used to amplify or switch electronic signals and electrical power.
- 18. Multiple Choice
Which of the following is a symbol for transistor?
- 19. Multiple Choice
What does LED stand for?
Lamp Emitted Diode
Lighting Emitted Diode
Lamp Emitting Diode
Light Emitting Diode
- 20. Multiple Choice
What transducer converts electrical energy to sound?
buzzer
microphone
amplifier
oscilloscope
- 21. Multiple Choice
What transducer converts electrical energy to heat?
motor
heater
buzzer
solar cell
- 22. Multiple Choice
What is the circuit symbol for battery?
- 23. Multiple Choice
What is teh symbol for lamp used for lighting?
- 24. Multiple Choice
What electrical component may be made to either conduct (closed) or not (open) electric current?
resistor
conducting wire
switch
cell
- 25. Multiple Choice
What component is used to resist or oppose the flow of current?
transistor
capacitor
diode
resistor
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