These are the most common questions for interviewing in an electronics company. This list includes a variety of subjects.
- What is a Flip flop and how do they work?
- You can tell the difference between flip-flops or latches.
- What is a totem pole?
- What is the transmission mode for TV signals?
- Draw the internal circuit for 8085 microprocessor.
- What is a bit? What is CMOS?
- What is FM’s bandwidth?
- How would an electronics engineer distinguish between digital and paper money?
- What is modem? Draw the internal diagram.
- Get a square wave using a sine wave Zener diodes.
- What is the difference between an oscillator or multivibrator
- What are blue tooth and WAP?
- What are trappatt and impatt diodes, you ask?
- What is an emitter follower?
- The order of discovery is to give the electromagnetic equations.
- Find the transfer function for a given RLC circuit.
- What happens if you enter user-name or password when you log on to Unix?
- Use NAND gates to draw the circuit for an addition.
- Explain the internal organization of memory chips.
- What are the various types of control systems available?
- Block diagram examples can help you explain open loop.
- What are the benefits of a closed loop?
- How do you create a stable system?
- Different stability criteria should be explained.
- One sentence to explain Ruthz-Hervitz rule
- What is the significance of poles?
- Does the room have a control system (interview hall?)?
- What is the Karnaugh map?
- Which are the four methods that can be used to reduce a Boolean expression
- Draw 8086 interior architecture.
- What are the differences between different types of buses?
- What are the various registers of CPU?
- What does segment register mean?
- Which 32-bit microprocessor is the first?
- What are the differences between UPS?
- Compare 8086 and 80286
- Describe the internal architecture of 8086.
- What are your thoughts on antennas?
- Define control system. What is the importance of control systems?
- Draw the block diagram for a control system, and then write its transfer function.
- What is ROC?
- Transformation between the S and Z planes
- What is wave studio?
- What is the bit rate?
- What’s the difference between mp3 files and wave formats?
- What is sampling?
- How can you dampen noises and jerks when recording?
- What is Winamp?
- What are plugins?
- Explain the workings of an OP/AMP.
- What’s the difference between output and input plugins?
- What are your thoughts on CD writing?
- How can you mix BGM? How do you mix BGM?
- What is a bus?
- What does 20-bit address bus mean?
- What is the ideal gain from an opampamp?
- What is a database?
- What database software is proprietary to IBM?
- What’s the difference between half-adder and full-adder?
- You can use a half-adder or a full addition.
- What is circuit switching and packet switching?
- What is VOIP (Voice over Internet Protocol), and how can it be used?
- What kinds of communications are you familiar with?
- Different types of digital communication should be explained.
- Explain the structure and reasons for MOSFET.
- What is the best way to amplify a transistor’s output?
- Classify power amplifiers (A, B, AB).
- What is doping?
- DMA controllers described.
- What protocol is used in a telephone network?
- Describe the different types of switching.
- What number of pins can you find in 8086?
- What is blue tooth’s greatest advantage?
- Which flip-flop is universal?
- What are interrupts? What is an interrupt?
- What is Dynamic Memory Access?
- What is SRAM and DRAM? Compare the costs of both.
- What happens if there is a power outage?
- What is modulation? What are the various modulation techniques?
- What are FM, PM, and AM? What happens when you compare the three?
- Which waves travel farther – AM or FM?
- What is a Thyristor? Differ between a thyristor or diode.
- Explain the witching actions of SCR and trigger.
- Draw the diagram for thyristor.
- TTL and CMOS are advantages
- What technology is used to create cmos logic
- What is VLSI and ULSI? How many components are in each?
- What are the components of the Pentium processor we use?
- What is the most recent Pentium processor? How fast is it?
- Describe the technology used to manufacture the Pentium processor.
- Design a decade counter.
- Explain the asynchronous and synchronous counters.
- Minimize function using Quine McCluskey: f = xy + x’y + yz + x’ y ‘z’.
- What is a prime implicant and how can it be used?
- What does an internal diagram of a diode show? Use internal diagrams to explain how you work.
- Describe the processes that occur in the depletion junction for a forward biased diode.
- What is an op amp and what does it do?
- What is a buffer? What is the benefit of a buffer
- What is an oscillator?
- How can you forward bias a transistor
- What practical uses are transistors used for?
- What is reverse recovery and how does it impact a diode’s performance?
- What is a compiler?
- How do you test a compiler that has certain boundary conditions?
- What is VHDL?
- What is FSF? What are your thoughts? Is it still relevant?
- What is the difference between closed loop and open loop control systems?
- Draw and explain how a monostable vibrator works using an op-amp.
- State Thevenin’s theorem, Norton’s theory. Which is their application?
- What mathematics is used in DSP? From which domain can signal conversion be made?
- There is a difference between extrinsic and intrinsic semiconductors.
- Draw an internal block diagram for a normal voltage stabilizer.
- What is a Reference Variable?
- Logarithmic volume control is used in TV. Why?
- Is MATLAB equipped with an interpreter?
- What are your thoughts on segmentation of memory in 8086
- What is virtual memory?
- You can distinguish between macros and functions within C.
- Explain the importance of electromagnetic interference in computer boards and PCBs.
- What are the pin connections to interrupts, memory, and peripherals?
- A rough diagram of a Mother Board using 8086 and the relevant connections.
- What is the tri-state?
- What are the differences in open collector output and totempole output?
- Given the rise, fall and propagation delays, find the clock frequency that is the highest in a digital circuit.
- Use MUX to implement Boolean expressions (2 to 4, 3, to 8, etc.
- Draw the state graphs for a problem such as sequence generator, flip-flops, etc.
- What is the purpose of calling the accumulator “the accumulator”?
- How do we create a stack?
- From a T flipflop, construct a D flipflop.
- What is virtual ground in an Opamp?
- What is the difference between uplinking frequency and downlinking frequency?
- What is the procedure for booting a computer?
- What is metastable in flip-flops and why are they so popular?
- What is the round-robin technique for interrupt arbitration?
- What is an avalanche? What happens when it occurs?
- Explain the operation and purpose of a Zener Diode.