FE Electrical & Computer case studies
FE Electrical & Computer · Put your knowledge to work in context.
The Fundamentals of Engineering (FE) exam is generally the first step in the process of becoming a licensed professional engineer (P.E.). NCEES describes it as designed for recent graduates and students who are close to finishing an undergraduate engineering degree from an EAC/ABET-accredited program. It is a computer-based exam administered year-round at NCEES-approved Pearson test centers, and the $225 exam fee is payable directly to NCEES. The FE exam includes 110 questions. The FE Electrical & Computer case studies are 5 cases and about 2,631 words.
1SPI Flash CRC Errors During ADC DMA Bursts
A battery-powered data logger uses a 32-bit MCU at 80 MHz. A 12-bit ADC streams at 200 kS/s over SPI0 using DMA.
517 words, about 3 min2Transimpedance Amplifier Peaking With Photodiode Cable
A photodiode preamp uses a 1 MΩ transimpedance gain and must achieve 100 kHz bandwidth. The photodiode capacitance is 10 pF, the op-amp input capacitance is 5 pF, and the selected op-amp has 10 MHz gain-bandwidth.
529 words, about 3 min3Across-the-Line Motor Start Causes Voltage Dip
A 480 V, three-phase plant has a 500 kVA transformer with 5% impedance. Existing load is 200 kVA at 0.9 lagging power factor.
529 words, about 3 min4Asynchronous FIFO Overflow With Bounded Read Stalls
An FPGA design writes 16-bit samples into an asynchronous FIFO at 100 MHz in bursts of 64 words, one word per clock. The read side runs at 125 MHz but occasionally stalls for 20 read-clock cycles while a shared memory controller services another master.
531 words, about 3 min512-bit ADC Code Jumps When Motor Driver Enables
A 12-bit SAR ADC in a motor-control board uses a 3.3 V reference, so one LSB is about 0.8 mV. The ADC communicates over SPI at 1 MHz to an MCU.
525 words, about 3 min