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Electronic engineering
Contributed by: McLoughlin
  • 1. Electronic engineering is a broad field that involves the design and development of electronic devices, components, systems, and equipment. Electronic engineers use principles of electrical and electronics engineering to create innovative solutions for various industries such as telecommunications, healthcare, aerospace, and more. They work on projects ranging from designing circuits and microchips to developing complex systems like communication networks and control systems. With a focus on solving real-world problems, electronic engineers play a crucial role in advancing technology and improving our daily lives.

    What is the SI unit of electrical resistance?
A) Watt
B) Ohm
C) Ampere
D) Volt
  • 2. What is the purpose of a capacitor in an electronic circuit?
A) To control voltage levels
B) To store and release electrical energy
C) To conduct electricity efficiently
D) To amplify signals
  • 3. What is the basic building block of digital circuits?
A) Logic gate
B) Transistor
C) Capacitor
D) Resistor
  • 4. What does PCB stand for?
A) Printed Circuit Board
B) Power Control Box
C) Personal Computer Backup
D) Programmable Control Block
  • 5. Which electronic component allows current to flow in only one direction?
A) Resistor
B) Diode
C) Capacitor
D) Transistor
  • 6. What type of signal has two voltage levels representing binary values?
A) PWM signal
B) AC signal
C) Analog signal
D) Digital signal
  • 7. Which law states that the current through a conductor between two points is directly proportional to the voltage across the two points?
A) Kirchhoff's Law
B) Faraday's Law
C) Ohm's Law
D) Lenz's Law
  • 8. What is the purpose of a rectifier in a power supply?
A) To regulate voltage
B) To change frequency
C) To store energy
D) To convert AC to DC
  • 9. Which type of memory retains data even when the power is turned off?
A) RAM
B) Non-volatile memory
C) ROM
D) Cache memory
  • 10. What component is used to store electrical charge in a circuit?
A) Diode
B) Resistor
C) Inductor
D) Capacitor
  • 11. Which device is used to measure voltage in a circuit?
A) Oscilloscope
B) Ammeter
C) Voltmeter
D) Multimeter
  • 12. What does CMOS stand for in electronic engineering?
A) Computerized Machine Operating Software
B) Controlled Memory Output System
C) Complementary Metal-Oxide-Semiconductor
D) Coordinated Monitoring System
  • 13. Which law states that the sum of the currents entering a node is equal to the sum of the currents leaving the node?
A) Faraday's Law
B) Ohm's Law
C) Kirchhoff's Current Law
D) Kirchhoff's Voltage Law
  • 14. Which type of logic gate has an output that is true if any input is true?
A) OR gate
B) AND gate
C) NOT gate
D) NOR gate
  • 15. Which component is used to amplify signals in an electronic circuit?
A) Resistor
B) Transistor
C) Inductor
D) Diode
  • 16. What does FPGA stand for in electronic engineering?
A) Field-Programmable Gate Array
B) Floating Point Graphics Accelerator
C) Flexible Programming Grid Architecture
D) Fast Processing Graphics Adapter
  • 17. What is the primary function of a regulator in an electronic circuit?
A) To maintain a constant output voltage
B) To change frequency
C) To amplify signals
D) To store energy
  • 18. Which type of transmission line consists of a conducting outer shell and a central wire conductor?
A) Twisted pair cable
B) Fiber optic cable
C) Coaxial cable
D) Parallel wire transmission line
  • 19. What component is used to store data in a computing system temporarily?
A) ROM
B) Hard drive
C) RAM
D) Cache memory
  • 20. What is the process of converting analog signals to digital signals called?
A) Analog-to-Digital Conversion
B) Frequency Modulation
C) Amplification
D) Phase Shift
  • 21. Which type of component stores charge and generates a magnetic field in a circuit?
A) Inductor
B) Resistor
C) Capacitor
D) Transistor
  • 22. Which type of display technology uses organic compounds that emit light when an electric current passes through them?
A) Plasma
B) LED
C) OLED
D) LCD
  • 23. Which type of filter allows certain frequencies to pass while attenuating others?
A) Low-pass filter
B) Notch filter
C) Band-pass filter
D) High-pass filter
  • 24. What is the standard unit of frequency in electronic engineering?
A) Joule
B) Farad
C) Watt
D) Hertz
  • 25. What type of semiconductor material is used in most solar cells?
A) Silicon
B) Indium Phosphide
C) Gallium Arsenide
D) Germanium
  • 26. Which electronic component is used for signal amplification and filtering?
A) Multiplexer
B) Demultiplexer
C) Op-Amp (Operational Amplifier)
D) Flip-Flop
  • 27. Which material is commonly used as a conductor in electronic circuits?
A) Gold
B) Aluminum
C) Copper
D) Silver
  • 28. What does UART stand for in electronics?
A) Universal Asynchronous Receiver/Transmitter
B) Unified Application and Remote Transfer
C) Ultrafast Automated Relay Technology
D) User Action Responsive Terminal
  • 29. Which electronic component is used to protect circuits from voltage spikes?
A) Varistor
B) Thyristor
C) SCR
D) Triac
  • 30. Which electronic device converts digital signals to analog signals?
A) Comparator
B) Multiplexer
C) Digital-to-Analog Converter (DAC)
D) Analog-to-Digital Converter (ADC)
  • 31. What is the fundamental unit of digital electronics?
A) Volt
B) Byte
C) Bit
D) Ohm
  • 32. What is the process of converting physical quantities into electrical signals?
A) Transformation
B) Conduction
C) Transmission
D) Transduction
  • 33. What is the property of an electrical circuit that opposes the flow of current?
A) Resistance
B) Reactance
C) Conductance
D) Inductance
  • 34. RFID technology stands for ________ Identification.
A) Rapid Frequency
B) Radio Frequency
C) Remote Field
D) Responsive Form
  • 35. Which component is used to connect different parts of a circuit together?
A) Wire
B) Capacitor
C) Diode
D) Resistor
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