WorksheetsFinal Quiz Schematic symbols, electr. components and functions
Total questions: 60
Worksheet time: 33mins
Choose two options as physical name and description about LD:
LED
antenna coil
Emit light when electrons flow through them
pick up the radio signals
Choose two options as physical name and description :
LED
antenna coil
Emit light when electrons flow through them
pick up the radio signals
Choose two options as physical name and description about Ld
LED digital display
Display numbers or some letters
Terminal
connect external devices
Choose two options as physical name and description about T1
LED digital display
Display numbers or some letters
Terminal
connect external devices
Choose two options as physical name and description about R
Resistor
Oppose flow of electrons
Zener Diode
Pass electrons only when the voltage is over a certain level.
Choose two options as physical name and description about ZD
Resistor
Oppose flow of electrons
Zener Diode
Pass electrons only when the voltage is over a certain level.
Choose two options as physical name and description about Q
IC 4011 (NAND Gate)
Output low voltage when all inputs are high.
PNP and NPN Transistor
Change the current flow from its collector to emitter depending on how much voltage is added to the base and vice versa.
Choose two options as physical name and description about U
IC 4011 (NAND Gate)
Output low voltage when all inputs are high.
PNP and NPN Transistor
Change the current flow from its collector to emitter depending on how much voltage is added to the base and vice versa.
Choose two options as physical name and description about CdS
Change resistance value with amount o light that falls on them
Tuning Control
CdS Cell
Let you tune to a specific frequency
Choose two options as physical name and description about VC
Change resistance value with amount o light that falls on them
Tuning Control
CdS Cell
Let you tune to a specific frequency
What is the function of a resistor in an electrical circuit?
Oppose the flow of electrons
Store electric energy
Emit light when electrons flow through them
Let you change resistance values
Which component is used to display numbers or some letters?
LED
LCD Digital Display
Speaker
Antenna Coil
What is the purpose of a diode in an electrical circuit?
Let electrons flow through them only in one direction
Change resistance values
Emit light when electrons flow through them
Store electric energy
Which component is used to amplify the audio frequency signal?
Operational Amplifier
Ceramic Capacitor
Zener Diode
Key
What is the function of a switch in an electrical circuit?
Connect or disconnect electrical circuits
Store electric energy
Emit light when electrons flow through them
Oppose the flow of electrons
What is the primary function of a capacitor in an electrical circuit?
Store electric energy
Emit light when electrons flow through them
Connect or disconnect electrical circuits
Oppose the flow of electrons
Which component is used to convert electrical energy into mechanical energy?
Motor
Resistor
Diode
Capacitor
What is the role of an inductor in an electrical circuit?
Store energy in a magnetic field
Emit light when electrons flow through them
Change resistance values
Convert electrical energy into sound
What is the primary function of a transformer in an electrical circuit?
Emit light when electrons flow through them
Change the voltage level
Store electric energy
Oppose the flow of electrons
Which component is used to protect circuits from overcurrent?
Fuse
Resistor
Capacitor
Inductor
What is the role of a relay in an electrical circuit?
Emit light when electrons flow through them
Switch circuits on or off
Store electric energy
Convert electrical energy into sound
What is the primary function of a transistor in an electrical circuit?
Oppose the flow of electrons
Amplify or switch electronic signals
Emit light when electrons flow through them
Store electric energy
Which component is used to convert AC to DC in an electrical circuit?
Rectifier
Resistor
Inductor
Capacitor
What is the role of a thermistor in an electrical circuit?
Change resistance with temperature
Emit light when electrons flow through them
Store electric energy
Convert electrical energy into sound
What is the primary function of a fuse in an electrical circuit?
Change resistance values
Store electric energy
Emit light when electrons flow through them
Protect circuits from overcurrent
Which component is used to convert sound into electrical signals?
Microphone
Capacitor
Speaker
Resistor
What is the role of a photodiode in an electrical circuit?
Store electric energy
Oppose the flow of electrons
Emit light when electrons flow through them
Convert light into electrical current
What is the primary function of a varistor in an electrical circuit?
Store electric energy
Convert electrical energy into sound
Emit light when electrons flow through them
Protect circuits from voltage spikes
Which component is used to measure electric current in a circuit?
Ohmmeter
Thermometer
Voltmeter
Ammeter
What is the role of a light-emitting diode (LED) in an electrical circuit?
Oppose the flow of electrons
Convert sound into electrical signals
Store electric energy
Emit light when electrons flow through them
What is the function of an LED?
To emit light when an electric current passes through it
To store electrical energy
To amplify electrical signals
To convert AC to DC
Which component is used to display numbers or some letters?
LCD
Speaker
Microphone
Camera
What is the symbol for a CdS Cell?
CdS Cell
CdTe Cell
Si Cell
GaAs Cell
Which component converts electrical energy to sound?
Speaker
Resistor
Capacitor
Transistor
What is the function of an Earphone?
To listen to audio privately
To charge a phone
To take photographs
To browse the internet
Which component is used to pick up radio signals?
Antenna
Speaker
Microphone
Transistor
What is the function of an Output Transformer?
To match the output of the circuit to the speaker
To increase the voltage output
To decrease the current output
To convert AC to DC
Which component lets you tune to a specific frequency?
Tuner
Amplifier
Speaker
Microphone
What is the function of a Control?
The function of a Control is to provide a standard for comparison in an experiment, ensuring that the results are due to the variable being tested.
The function of a Control is to increase the complexity of an experiment.
The function of a Control is to ensure that the experiment is conducted in a vacuum.
The function of a Control is to provide additional variables to test.
Which component connects or disconnects electrical circuits?
Switch
Resistor
Capacitor
Inductor
What is the function of a Key?
Let electrons flow when you press it
To open a door
To start a car
To play a musical note
Which component connects external devices?
USB Port
CPU
RAM
Hard Drive
What is the function of a Resistor?
To limit the flow of electric current
To increase the flow of electric current
To store electrical energy
To convert electrical energy into mechanical energy
What is the function of a Ceramic Capacitor?
Energy storage
Signal amplification
Current rectification
Voltage regulation
Which component stores electric energy?
Capacitor
Resistor
Inductor
Transformer
What is the function of a Rectifier Diode?
Convert AC to DC
Amplify signals
Store electrical energy
Measure current
Which component is used to let electrons flow through them only in one direction?
Diode
Resistor
Capacitor
Inductor
What is the function of a Zener Diode?
Voltage regulation
Current amplification
Signal modulation
Power generation
Which component outputs low voltage when all inputs are high?
AND gate
OR gate
NAND gate
NOR gate
Which component is used to amplify electrical signals?
Transistor
Resistor
Diode
Capacitor
What is the function of a Transformer?
To amplify sound
To change the voltage level of an AC supply
To convert AC to DC
To store electrical energy
Which component is used to measure electrical current?
Thermometer
Ohmmeter
Ammeter
Voltmeter
What is the function of a Fuse?
To amplify electrical signals
To protect circuits by breaking the connection when current is too high
To store electrical energy
To convert AC to DC
Which component is used to convert sound into electrical signals?
Resistor
Microphone
Speaker
Transistor
What is the function of a Relay?
To control a high-power circuit with a low-power signal
To store electrical energy
To measure electrical current
To convert AC to DC
What is the function of a Transistor?
To amplify electrical signals
To convert AC to DC
To store electrical energy
To measure electrical current
Which component is used to regulate voltage in a circuit?
Voltage Regulator
Capacitor
Inductor
Resistor
What is the function of an Inductor?
To amplify sound
To emit light
To convert sound into electrical signals
To store energy in a magnetic field
What is the function of a Photodiode?
To store electrical energy
To amplify sound
To convert light into electrical current
To emit light
What is the function of a Thermistor?
To amplify electrical signals
To store electrical energy
To measure temperature changes
To convert AC to DC
