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