ENGR 217 Final Exam Questions & Answers 2024/2025
Engineers shall hold paramount_________ - ANSWERSThe safety, health, and welfare of the public
Engineers shall perform services only in ________ - ANSWERSareas of their competence
Engineers shall issue public statements only ___________ -...
Engineers shall conduct themselves honorably, responsibly, ethically, and lawfully so as to _________ -
ANSWERSenhance the honor, reputation, and usefulness of the profession
What is the difference between differential and single-ended measurements (when using a DAQ) -
ANSWERSSingle-ended- measuring the voltage between a wire and the DAQ's ground
differential- measuring the voltage difference between 2 wires, more accurate than single-ended
a 4-bit ADC can encode numbers from _____ to ______ - ANSWERS0 - 15
(4 bits = 4 binary digits from 0000 -> 1111)
How do you find the resolution of an ADC? - ANSWERSDivide the range (in Volts) by the number of
possible outputs
(ex: a 4-bit ADC with a range of 5V has a resolution of 5/16=0.3125 V)
, What are the 2 types of DAQs, and what are their advantages/disadvantages? - ANSWERSFlash ADC-
faster, but more expensive, uses more hardware
Successive approximation- slower, but cheaper, uses more software and less hardware
What is 'noise' in electronic systems, and how can its effects be mitigated? - ANSWERSrandom,
uncorrelated, zero-mean errors in electronic systems
(zero-mean: the noise on average is 0 volts)
Take multiple measurements to mitigate the effects of noise
What is Johnson-Nyquist noise? What does it depend on? Can it be avoided? - ANSWERSRandom voltage
variation from electrons jumping around due to heat energy
Depends on temperature
Unavoidable
What is Shot noise? What does it depend on? Can it be avoided? - ANSWERSnoise caused by variations
in the movement speed of electrons
Depends on current
Unavoidable
Describe the format of a Gantt chart (answer is a picture) - ANSWERS
Describe the format of a Work Breakdown structure/Precedence network - ANSWERSQuizlet doesn't
have a picture for this, so just have to look it up
(WBS's and Precedence networks are actually different, but the slides treated them as the same thing)
What are the steps for making a "forward pass" through a precedence network? - ANSWERS1. Write a 0
for ES and EF on the start node, then move to the right to the next node(s)
2. For each node, find the largest EF time of the node(s) that feed into it, enter that as ES time
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