RPSC Senior Scientific Officer Biology Paper 2019 – Part B Forensic Science
Total Questions – 100 Duration – Two hours
No. of questions from Forensic Science – 40 Nos.
Which of the following is correct about UV-Vis spectroscopy technique?
(i) Quantitative analysis
(ii) Wavelength between 180 nm to 1100 nm
(iii) Qualitative analysis
Select the correct answer using the codes given below
Codes
(a) (i) and (ii)
(b) (i) and (iii)
(c) (i), (ii) and (iii)
(d) (ii) only
Which among the following helps us in getting a three-dimentional picture of the specimen?
(a) Transmission Electron Microscope
(b) Scanning Electron Microscope
(c) Compound Microscope
(d) Simple microscope
Which one of the following statement is CORRECT?
(a) Chain of custody means custody of evidence from scene of crime of Forensic lab
(b) Chain of custody means custody of evidence from scene of crime to Police station
(c) Chain of custody means custody of evidence from scene fo crime to court room
(d) Chain of custody means custody of the evidence from Police station to Forensic lab
Which one of the following statement is CORRECT?
(a) In mass spectrometer, the sample that has to be analysed is bombarded with alpha particles.
(b) In mass spectrometer, the sample that has to be analysed is bombarded with the protons.
(c) In mass spectrometer, the sample that has to be analysed is bombarded with the electrons.
(d) In mass spectrometer, the sample that has to be analysed is bombarded with the neutrons.
Which one of the following is associated with X-ray diffraction technique?
(i) Compositon of metal
(ii) Composition of element
(iii) Structure of crystal
Select the correct answer using the codes given below
Codes
(a) (i), (ii) and (iii)
(b) (ii) and (iii)
(c) (iii) only
(d) (i) and (ii)
The presence of pink needle shaped crystals of pyridine ferroprotoporphyrin are observed in
(a) Takayama test
(b) Teichman test
(c) Barberious test
(d) Florence test
The acid phosphatase screening test is used to detect physiological fluid
(a) Urine
(b) Sweat
(c) Semen
(d) Saliva
Which one of the following statement is CORRECT?
(a) Luminol reagent reacts with blood in the presence of peroxide to emit light by a chemical process known as florescence.
(b) Luminol reagent reacts with blood in the presence of peroxide to emit light by a chemical process known as chemiluminescence.
(c) Luminol reagent reacts with blood in the presence of peroxide to emit light by a chemical process known as illumination.
(d) Luminol reagent reacts with blood in the presence of peroxide to emit light by a chemical process known as phosphorescence.
The blood group of mother is B and father is B, the blood group of children could be
(a) B only
(b) B and O
(c) A,B, O and AB
(d) AB only
Which of the following statement is CORRECT?
(1) In absorption elution technique, chiled n-saline is used for washing so that all unabsorbed antibodies are washed.
(2) In absorption elution technique, chiled n-saline is used for washing so that all absorbed antibodies are washed.
(3) In absorption elution technique, chiled n-saline is used for washing so that all absorbed antibodies are not washed.
(4) In absorption elution technique, chiled n-saline is used for washing so that all unabsorbed antibodies are not washed.
Select the correct anser
(a) (1) and (2)
(b) (2) and (4)
(c) (1) and (3)
(d) (1) and (4)
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