Preguntas de entrevista de Junior hardware engineer

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Guzik Technical Enterprises
A un Junior Hardware Engineer le preguntaron...4 de junio de 2015

Question 2: what is the function of this circuit?

1 respuestas

I could not really answer it so I tried to analyze the circuit. I eventually had to simulate it to find out it was a peak detector. Menos

Oura

What physiological things can affect a PPG measurement.

1 respuestas

This was a hard question as I didn't know if i should focus on things affecting the quality of signal or the signal itself. I froze, focused on the first one and came up with motion artefacts and sweat and finger swelling i guess. Menos

Aversan

A block diagram was given at the end with CAN Bus and a bunch of other blocks. How would you test this system?

1 respuestas

Step by Step verification of RX signals using oscilloscope

Continental

Technical questions regarding design aspects

1 respuestas

Just be calm. Solid Electrical Engineering bases are required

Imagination Technologies

At first they asked implementing some sort of function with hardware. After that do it with less hardware. After that design on board a state machine recognising some specific series of 0s and 1s. Finally implementing multiplication of 8 bit numbers with 4 bit multipliers + whatever I needed. Also they asked about read after write problems to processors and things on computer architecture. Also they asked me things on my Thesis.

1 respuestas

For the first thing I did it by adding the result to register and reuse the hardware. I drew the state machine even though it took me 2x the time it should (anxiety of interview + lack of experience). For the multiplier I didn't manage to do it as I should but with a hint. Menos

Northrop Grumman

First question was to explain Ohm's law

1 respuestas

Ohm's law is the to correlation between voltage, current and resistance and is V=IR Menos

Aversan

What FPGA's have you worked with and on what projects?

1 respuestas

Xilinx FPGA on Traffic light controller on FPGA

I was asked about what are the features available on an oscilloscope and multimeter and remember how many buttons are there on an average unit and what they did. When I mentioned that i am familiar with power electronics such as buck or boost converters, I was asked to draw a circuit of these converters.

Intracom Telecom

For a Digital Design position: -low/high pass filters -what is clock skew -Digital gates problem -Counters

Intracom Telecom

For a Digital Design position: -low/high pass filters -what is clock skew -Digital gates problem -Counters

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failure analysis technician