Success Chemistry Instrumentation ACTUAL EXAM(2025) 100%VERIFIED |
complete QUESTIONS AND ANSWERS | GRADED A+
Terms in this set (76)
1. Which of the
following lamps provides a A. Tungsten-filament
continuous spectrum of radiant energy in
the visible, near IR, and near UV regions of
the spectrum
A. Tungsten-filament
B.Hydrogen
C. Deuterium
D.Mercury vapor
2.Which isolates light within a narrow region B.
Monochromator of the spectrum?
A. Photomuliplier tube
B.Monochromator
C. Photovoltaic
D.Detector
, 3.Which is not descriptive of a C. Cannot be used with a chopper
photomultiplier tube?
A. Emits election proportionally to initial
light absorbed
B.Must be shielded from stray light
C. Cannot be used with a chopper
D.Amplifies the initial signal received
4.Which of the following is false about a D. Is composed of an iron plate and a layer of
selenium photomultiplier tube?
A. converts radiant energy (light) to
electrical energy (current)
B. Amplifies the current significantly
C. Has a very rapid response time
D.Is composed of an iron plate and a layer
of selenium
5.Which type of photodetector employs a D. Photodiode array
linear arrangement that allows it to respond
to a specific wavelength resulting in
complete UV/Visible spectrum analysis?
A. Photomuliplier tube
B.Phototube
C. Barrier layer cell
D.Photodiode array
6.When performing spectrophotometer D. Wavelength
accuracy quality assurance checks, what is the
holmium oxide glass filter used to assess?
A. Linearity
B.Stray light
C. Absorbance accuracy
D.Wavelength accuracy
7. In spectrophotometric analysis, what is
D. Corrrect for color contribution of the reagents the purpose of the reagent blank?
A. Correction for interfering chromogens
B.Correct for lipemia
C. Correct for protein
D.Corrrect for color contribution of
the reagents
8.In regard to biochromatic analysis, which A. Absorbance is measured at the spectral absorbance peak
of the following is false? for a blank and the sample using the same wavelength
A. Absorbance is measured at the spectral
absorbance peak for a blank and the
sample using the same wavelength
B.Eliminates background interference
C. Sample concentration determined from
difference in two measured
absorbances
D.Functions as a reference blank for
each sample
complete QUESTIONS AND ANSWERS | GRADED A+
Terms in this set (76)
1. Which of the
following lamps provides a A. Tungsten-filament
continuous spectrum of radiant energy in
the visible, near IR, and near UV regions of
the spectrum
A. Tungsten-filament
B.Hydrogen
C. Deuterium
D.Mercury vapor
2.Which isolates light within a narrow region B.
Monochromator of the spectrum?
A. Photomuliplier tube
B.Monochromator
C. Photovoltaic
D.Detector
, 3.Which is not descriptive of a C. Cannot be used with a chopper
photomultiplier tube?
A. Emits election proportionally to initial
light absorbed
B.Must be shielded from stray light
C. Cannot be used with a chopper
D.Amplifies the initial signal received
4.Which of the following is false about a D. Is composed of an iron plate and a layer of
selenium photomultiplier tube?
A. converts radiant energy (light) to
electrical energy (current)
B. Amplifies the current significantly
C. Has a very rapid response time
D.Is composed of an iron plate and a layer
of selenium
5.Which type of photodetector employs a D. Photodiode array
linear arrangement that allows it to respond
to a specific wavelength resulting in
complete UV/Visible spectrum analysis?
A. Photomuliplier tube
B.Phototube
C. Barrier layer cell
D.Photodiode array
6.When performing spectrophotometer D. Wavelength
accuracy quality assurance checks, what is the
holmium oxide glass filter used to assess?
A. Linearity
B.Stray light
C. Absorbance accuracy
D.Wavelength accuracy
7. In spectrophotometric analysis, what is
D. Corrrect for color contribution of the reagents the purpose of the reagent blank?
A. Correction for interfering chromogens
B.Correct for lipemia
C. Correct for protein
D.Corrrect for color contribution of
the reagents
8.In regard to biochromatic analysis, which A. Absorbance is measured at the spectral absorbance peak
of the following is false? for a blank and the sample using the same wavelength
A. Absorbance is measured at the spectral
absorbance peak for a blank and the
sample using the same wavelength
B.Eliminates background interference
C. Sample concentration determined from
difference in two measured
absorbances
D.Functions as a reference blank for
each sample
