TASC Electronics and Advanced Technologies Level 3 case studies
TASC Electronics and Advanced Technologies Level 3 · Put your knowledge to work in context.
The TASC Electronics and Advanced Technologies Level 3 is a multiple-choice credential aimed at people who build, install, maintain, or supervise electronic and automated systems and want independent evidence that their knowledge reaches beyond entry level. It suits technicians moving into advanced roles, apprentices finishing structured training, and career changers with practical workshop or field experience who need a recognised benchmark. The TASC Electronics and Advanced Technologies Level 3 case studies are 5 cases and about 1,791 words.
1Field Sensor Loop Reads High After Panel Rebuild
A technician rebuilt a control panel that reads a 4–20 mA pressure transmitter via a 250 Ω shunt into a 12-bit ADC (0–5 V, 0–4095 counts). Before the rebuild the loop read 8.00 mA at zero pressure and 20.00 mA at 10 bar.
366 words, about 2 min2Battery-Powered Node Brownouts Under Motor Start
A remote monitoring node runs from a 12 V 7 Ah sealed lead-acid battery through a buck converter set to 5 V. The node's radio draws 1.8 A peaks for 40 ms during transmit; idle draw is 35 mA.
404 words, about 2 min3UART Link Fails Only at Long Cable Length
A controller talks to a remote display over a 3.3 V UART at 115200 baud, 8N1, on 18 m of unshielded twisted pair. Short bench tests pass; at the installed length roughly one frame in 500 has a checksum error, and errors increase when a nearby contactor operates.
324 words, about 2 min4PID Loop Oscillates After Valve Replacement
A temperature control loop uses a PID in a PLC driving a modulating valve on a steam line. The loop was tuned two years ago with a 4–20 mA valve actuator.
352 words, about 2 min5Intermittent Fault Escapes Bench Test
A board intermittently fails to boot, roughly one attempt in twenty, at a customer site but never on the bench. The board uses a 3.3 V regulator, a crystal oscillator, and a reset supervisor.
345 words, about 2 min