Year 10 Electronics Quiz

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Quizzes Created: 3 | Total Attempts: 3,623
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Electronics Quizzes & Trivia

Electronics quiz


Questions and Answers
  • 1. 

    What is the process used to connect components to our circuit boards

    • A.

      Welding

    • B.

      Soldering

    • C.

      Gluing

    Correct Answer
    B. Soldering
    Explanation
    Soldering is the process used to connect components to circuit boards. It involves melting a metal alloy called solder and applying it to the joint between the component and the board. The solder then solidifies, creating a strong and reliable electrical connection. This method is commonly used in electronics manufacturing as it provides a secure and durable bond between the components and the circuit board.

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  • 2. 

    Which of these are legs of the transistor

    • A.

      Base

    • B.

      Diode

    • C.

      Emitter

    • D.

      Collector

    • E.

      Pin

    Correct Answer(s)
    A. Base
    C. Emitter
    D. Collector
    Explanation
    The legs of a transistor are the base, emitter, and collector. These are the three terminals that are used for connecting the transistor in a circuit. The base terminal controls the flow of current between the emitter and collector terminals. The emitter terminal is responsible for emitting or releasing electrons into the transistor. The collector terminal collects the electrons from the emitter. The pin and diode mentioned in the options are not legs of a transistor and do not have the same functionality.

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  • 3. 

    What does LDR stand for

    • A.

      Light dependant resistor

    • B.

      Long dependant resistor

    • C.

      Light dependant radio

    • D.

      Light dispenser resistor

    Correct Answer
    A. Light dependant resistor
    Explanation
    LDR stands for Light dependant resistor. It is a type of resistor whose resistance varies with the intensity of light falling on it. When the light intensity increases, the resistance of the LDR decreases, and vice versa. LDRs are commonly used in various electronic devices like streetlights, cameras, and automatic doors, where their resistance change is utilized to control the operation of these devices based on the amount of light present in the surroundings.

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  • 4. 

    Which of these are soldering safety rules

    • A.

      Wear goggles

    • B.

      Do Breathe fumes in

    • C.

      Touch the hot element with your hands

    • D.

      Wear an apron

    • E.

      Don't touch hot wires

    Correct Answer(s)
    A. Wear goggles
    E. Don't touch hot wires
    Explanation
    The correct answer is "Wear goggles" and "don't touch hot wires". These safety rules are essential to follow while soldering. Wearing goggles protects the eyes from potential harm caused by splattering solder or flying debris. Not touching hot wires is crucial to avoid burns or electrical shocks. The other options, such as breathing in fumes or touching the hot element with hands, are unsafe practices and should not be done while soldering.

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  • 5. 

    Does it matter which way we solder the resistor into the circuit

    • A.

      Yes

    • B.

      No

    Correct Answer
    B. No
    Explanation
    The correct answer is no because resistors are not polarized components, meaning they can be connected in either direction without affecting their functionality. The flow of current through a resistor is determined by the voltage across it, not the direction in which it is connected. Therefore, it does not matter which way we solder the resistor into the circuit.

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  • 6. 

    What type of switch is an emergency stop

    • A.

      PTM (push to make)

    • B.

      PTB (push to break)

    • C.

      Rocker switch

    • D.

      Slider switch

    • E.

      Microswitch

    Correct Answer
    B. PTB (push to break)
    Explanation
    An emergency stop switch is designed to immediately halt the operation of a machine or equipment in case of an emergency. A "push to break" (PTB) switch is the most suitable type for this purpose because it is normally closed and interrupts the circuit when pressed, breaking the electrical connection and stopping the machine. This ensures that power is cut off and prevents any further operation until the switch is reset. The other options, such as PTM, rocker switch, slider switch, and microswitch, are not specifically designed for emergency stop functions.

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  • 7. 

    What must you look out for when dealing with electricity

    • A.

      Plastics

    • B.

      Water

    • C.

      Overloaded sockets

    • D.

      Over head power lines

    Correct Answer(s)
    B. Water
    C. Overloaded sockets
    D. Over head power lines
    Explanation
    When dealing with electricity, it is important to look out for water, overloaded sockets, and overhead power lines. Water can conduct electricity and increase the risk of electric shock or short circuits. Overloaded sockets can overheat and cause electrical fires. Overhead power lines carry high voltage electricity and can be dangerous if touched or if objects come into contact with them. Being aware of these hazards is crucial for ensuring safety when dealing with electricity.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 22, 2008
    Quiz Created by
    Vandaman10
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