BLD 313 EXAM 3 QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS GRADED A++ 100%
GUARANTEED PASS!!!
What are the 3 ways of expressing data?
1. qualitative - positive/negative, physical characteristics
2. semi-qualitative - estimate of concentration (ex. ABO grade)
3. quantitative - based on measurement; UNITS!!
What are the 3 types of signals that can be measured?
1. light-based: change in intensity
2. electric-based: voltage, current, resistance
3. physical characteristics: temp, freezing/boiling point, vapor pressure
What are the 4 types of changes in signals?
1. change in magnitude (amplitude)
2. change in rate of signal generation
, 3. change in frequency of signal (repetition rate)
4. change in duration of signal
What is the response-concentration relationship?
The relationship between the amount of concentration used to the response or signal
output it produces.
Signal to noise ratio
A relationship between the amount of signal and interfering noise that affects the
response-concentration relationship.
High signal with low noise is the best condition
Drift and shift
The signal can drift/shift up causing an overestimate of concentration, or the signal can
drift/shift down causing an underestimate of concentration.
Artifactual output
A non reproducible output from the property of electronic system (a spike in the graph)
Why do we graph a logarithmic function?
After linearization, it is easier to recognize a problem in the standard curve.
How do you linearize a logarithmic function?
Plot X vs log(Y)
What are the 2 general properties of light?
It can be a particle (photon) and/or a wave (wavelength).
Light intensity is proportional to ...
COMPLETE SOLUTIONS GRADED A++ 100%
GUARANTEED PASS!!!
What are the 3 ways of expressing data?
1. qualitative - positive/negative, physical characteristics
2. semi-qualitative - estimate of concentration (ex. ABO grade)
3. quantitative - based on measurement; UNITS!!
What are the 3 types of signals that can be measured?
1. light-based: change in intensity
2. electric-based: voltage, current, resistance
3. physical characteristics: temp, freezing/boiling point, vapor pressure
What are the 4 types of changes in signals?
1. change in magnitude (amplitude)
2. change in rate of signal generation
, 3. change in frequency of signal (repetition rate)
4. change in duration of signal
What is the response-concentration relationship?
The relationship between the amount of concentration used to the response or signal
output it produces.
Signal to noise ratio
A relationship between the amount of signal and interfering noise that affects the
response-concentration relationship.
High signal with low noise is the best condition
Drift and shift
The signal can drift/shift up causing an overestimate of concentration, or the signal can
drift/shift down causing an underestimate of concentration.
Artifactual output
A non reproducible output from the property of electronic system (a spike in the graph)
Why do we graph a logarithmic function?
After linearization, it is easier to recognize a problem in the standard curve.
How do you linearize a logarithmic function?
Plot X vs log(Y)
What are the 2 general properties of light?
It can be a particle (photon) and/or a wave (wavelength).
Light intensity is proportional to ...
