Exam Details

Subject forensic science & forensic balistics
Paper
Exam / Course
Department
Organization madhya pradesh public service commission
Position scientific officer
Exam Date 2013
City, State madhya pradesh,


Question Paper

1. Forensic Science is

(A)Application of scientific methods and techniques for the purpose of justice


(B)Application of scientific methods and techniques for the purpose of law


(C)Application of scientific methods and techniques for police investigation


(D)Application of scientific methods and techniques for criminal investigation


2. Edmond Locard belonged to which country among the following

(A)USA


UK


(C)France


Vienna

3. Arrange the following III the proper order of investigation of crime at the scene of crime

Collection of clue material

Protection of scene of crime

Packing and labelling

Sketching and photographing of crime scene

Codes:













4. Why IS photography the prerequisite III CrIme scene investigation

unaltered condition


To have it as a record for La.


keep it for future investigation


convince the court


5. Corroborative evidence is

(A)Evidence that refutes other evidence


Evidence that links an individual with a particular location


(C)Evidence that supports other evidence


(D)Evidence that associates an individual with another individual


6. Which of the following statements IS not true

(A) Class characteristics enable an object to be placed into a particular category


A class characteristic IS one that enables an object to be uniquely identified


questioned sample is sometimes referred to as a disputed sample


(D)Individual characteristics are unique to a particular group


7. Which of the following statements is true? The risk of contamination of evidence is controlled and/or minimized by

Using chain of custody labels


Minimising the number of people handling the evidence


Opening each package in an area other than where it was originally
sealed


Storing packages in a dedicated secure area
8. The major limitation of crime scene reconstruction IS that the evidence

Can overwhelm the crIme laboratory


Usually provides less information than needed


May have been staged


Supports only one sequence of events
9. Why do forensic photographers often use scales III their photographs

They provide important information about the relative SIze of the
objects


They are particularly useful in courtroom situations


Both and are correct


They provide complete information

10. What do you mean by Hash in respect of Computer Forensics?

(A)Mathematical formula that generates a numerical identifier based on input data


any bit of the input data changes, the output number changes


(C)Both and are involved


(D)None of the above is correct


11. Which of these instruments produces unique fragmentation pattern and works like Fingerprint for drug identification

GLC


HPLC


MS


AAS
12. The IR spectrum of a compound is equivalent to

(A)Fingerprint


DNA typing


(C)Specific in identification


Invaluable


13. Narco-analysis technique is against which Article of Indian Constitution?

Article 7


Article


Article


Article

14. Many ultra wide-angle or very short focal length lenses are known as

Fish-eye lenses


Wide-eye lenses


Shallow lenses


A class lenses
15. Atomic absorption spectroscopy is used for the analysis of

(A)Solvents


Volatile compound


(C)Non-metallic elements


Metallic elements


16. FTIR stands for

(A)Fourier Transform IR spectroscopy


Fourier Transmittance IR spectroscopy


Former Transform IR spectroscopy


None of the above

17. The device used for measuring brain response In brain fingerprinting is

(A)Electroencephalograph


Electroencephalogram


Scan


MRI


18. The rate of migration of a molecule III electrophoresis depends on

(A)Strength of the field


(B)Net charge, size and shape


Ionic strength and viscosity


(D)All of the above


19. Among the following detectors used in HPLC which is considered as a universal Detector:

The UV detector


(B)The fluorescence detector


(C)The refractive index detector


(D)The electrochemical detector


20. Among the following which is the least important factors affecting the reproducibility of Rf values in TLC

Stationary phase


Mobile phase


Temperature


Development distance
21. A difference in the two indices of refraction exhibited by some crystalline materials is called

(A)Double refractive index


Reflection


(C)Birefringence


None of these


22. The micro spectrophotometer employs the light

UV


IR


Oblique light


None of these
23. The scientist who gave chromatography concept was

Berzelius


Avogadro


Tswett


Lavosier
24. An examination of the development stages of the insects present on the decomposing corpse may yield valuable information about

.The circumstances surrounding the death


The post-mortem interval


The identification of the deceased


The age of the deceased
25. The scientific name of chiru IS

Antilope cervIcapra


Vulpes bengalensis


Capra aegagrus


Pantholops hodgsonii

26. The most versatile detector available today is

FID


NPD


MS


None of these
27. Substances having nearly equal values of Lambda maximum can be differentiated by

visible spectrophotometry


(B)HPLC


GC


Derivative spectrometry
28. Beer-Lambert's law gives a linear correlation with positive gradient between:

(A)Absorbance and concentration


(B)Absorbance and wavelength


(C)Molar extinction coefficient and absorbance


(D)Molar extinction coefficient and concentration


29. The light that has all its waves pulsating in unison is called

Laser


Oblique light


UV light


IR rays
30. In order to determine RI of glass which mICroscope is used

(A)Polarizing microscope


Compound microscope


(C)Hot stage microscope


Stereomicroscope


31. Dr. Lawrence A. Farewell discovered

Narco analysis


Brain fingerprinting


DNA fingerprinting


Polygraphy

32. As we travel from visible regIOn to radio waves in the electromagnetic spectrum, the frequency of rays

(A)Increases


Decreases


(C)Remains constant


All are correct


33. Name the filters used in PLM beneath the stage:

Polarizer


Analyzer


Objective


None of these

34. All types of chromatography

(A)Have a stationary phase and a mobile phase


Have chromatograms with peaks on a chart


(C)Can be used to separate explosive residues from the debris of an explosion


(D)Have a liquid mobile phase


35. The substances that vaporizes at temperature not higher than 300 celsius should be analysed by

GC


HPLC


MS


Py

36. In Forensic laboratory Pyrolysis-Gas chromatography can be used for the analysis of

Paints only


Fibres only


Plastics and Rubber only


All of these


37. A stereoscopic microscope is used for

Comparing tool marks


Separating useful evidence from contaminating materials


Examinations requiring high magnification


All of the above
38. Electron microscopes have higher powers of magnification than optical microscopes do because

The human eye is more sensitive to electrons than to light rays


The electron beam displaces electrons in the specimen


The electron beam is not subject to refraction


The electron beam operates at shorter wavelengths than light does



39. The operating principle of the mass spectrometer:

a function of the ionization rate of the sample compound


the same as the gas chromatograph but more accurate


(C)Depends on the mass to charge ration of ionized particles


(D)Was discovered in the 1960's


40. In Neutron activation analysis the sample is bombarded with

(A)Alpha rays


Beta rays


(C)Gamma rays


Neutrons


41. When the temperature of a liquid is raised

(A)Its RI increases


Its RI decreases


(C)Its RI disappears


Its RI remains constant


42. In Frye Vs. United States

(A)The trial judge admitted the results of the systolic blood pressure deception test, but he was reversed by the appeals court


(B)Frye was found not guilty of murder


(C)The appeals court set a standard of"general acceptance by the relevant scientific community"


(D)The US Supreme Court ruled that the results of the deception test were inadmissible because of the decision in Daubert V. Merrill Dow



43. In mIcroscopy, resolution is a measure of

The ability of the lenses to separate two tiny details that are close together


(B)The total magnification power of the mIcroscope


(C)The empty magnification of the mIcroscope


(D)The ability of an electron microscope to determine the presence of a large number of elements


44. If a spectrophotometer has a photocell detector and xenon lamp source, it is a/an

(A)Mass spectrometer


Infrared spectrophotometer


(C)Microwave instrument


(D)UV-visible spectrophotometer


45. The type of spectrometry that uses electrons to bombard a sample IS

Scanning electron mIcroscopy


Mass spectrometry


Infrared spectrometry


Microwave spectrometry


46. The parent peak in a mass spectrum refers to

substance used to calibrate the instrument


(B)the most abundant ion


ion that has lost two electrons


(D)the molecular ion


47. The part of the comparison microscope that allows the examiner to view two objects simultaneously is called the

(A)Comparator


Comparison bridge


(C)Spectroscope


Stage


48. In SEM, secondary electrons

(A)strike the object releasing other electrons


(B)strike the object and then reflect off the surface


(C)are emitted when a beam of primary electrons strikes the object


(D)are emitted by the nucleus of the various elements when the object is struck by a beam of X-rays


49. One of the major difference between GC and HPLC IS that

has liquid mobile phase


uses columns to hold the mobile phase whereas HPLC does not


columns are heated whereas HPLC columns are kept at room temperature


(D)HPLC always uses at least two liquids in its stationary phase




50. Potentiometer and colorimetry are techniques.

(A)Optical


Electrical


(C)Chemical


Electro-chemical


51. Meta-analysis is

(A)Analysis of several analysis


(B)Analysis of large data


(C)Analysis of meaningful data


(D)Attempt to test the data


52. Karl Pearson's coefficient is the method

(A)For studying correlation


(B)For calculating probability


(C)For sampling


(D)For studying correlation and calculating probability


53. If a com is tossed one time, what is the probability of occurring head?

l/2


1


0.5


2/3


is correct


is correct


and are correct


and are correct




54. Wildlife (Protection) Act in India was enacted in

(A)1974


1973


(C)1972


1970


55. India became signatory to CITES

(A)1977


1985


(C)1970


1976


56. Pugmark length or PML is

(A)The measurement between the outer edgas of the first and last toe


(B)The measurement from the tip of the farthest toe to the base of the pad along the line of walk


(C)Both and are correct


(D)None of the above


57. The National Academy of Sciences m the year 2009 issued a report on "The polygraph and lie detector" concludes that the evidence collected using it is

(A)Reliable and justified


(B)Can be admitted in court as an evidence


(C)Unreliable, Unscientific and biased


(D)None of the above



58. Narco analysis was first done by

(A)William Bleckwenn


Charles Darwin


(C)Robert House


Mathew Orfila


59. In polygraph application irrelevant questions

(A)Draw out a stressed response


(B)Evoke a deceptive response to a question


(C)Establish a base-line of subject's guilty-free reaction


(D)None of the above


60. Which of the following is considered to be an acceptable crime scene search pattern?

strip search


Spiral search


(C)Quadrant search


All of these


61. Which of the following regions of mt. DNA is used for species identification?

(A)HV1


Cyt b


2


Loop


62. The examination of physical evidence by a forensic scientist IS usually undertaken for

(A)Proving a suspect's innocence in a courtroom


(B)Proving a suspect's guilty in a courtroom


(C)Identification or comparison purposes


(D)Assisting law enforcement in the apprehension of an offender





63. Computer forensics involves all of the following stated activities except

(A)Manipulation of computer data


Interpretation of computer data


(C)Presentation of computer data


(D)Extraction of computer data

64. The forensic examination or analysis of static data (stored) is often called:


(A)Computer forensics


Media forensics


(C)Media analysis


All of these


65. According to the analysis of digital evidence, what should be the best practice?

(A)Forensic examination performances directly


(B)Design an examination process


(C)Create one or more duplicates of the original evidences


(D)The documentation and data reduction steps


66. The analysis of digital evidence comprise phases

(A)Documentation


(B)Data recovery


(C)Data reduction and extraction


(D)All of the above


67. The process of use of standards and controls for digital evidence IS substantially different than those used in other forensic discipline

(A)Digital evidence examiners do not compare unknown evidence with known reference materials obtained from a reliable source


(B)Digital examiners cannot run known material in conjunction with the unknown evidence


(C)The process varies among laboratories


(D)All the above are true about the standards and controls for digital evidence process


68. Arrange in a proper sequence

Reverse phase chromatography

Partition chromatography

Adsorption chromatography

Gas chromatography
Codes:

and are correct


and are correct


and are correct


and are correct



69. The various definitions of quality do not include

(A)The value-based approach


(B)The transcendent approach


(C)The manufacturing-based approach


(D)The minimum specification approach


70. Accreditation as defined by ISO is

(A)Third party attestation related to a conformity assessment body conveying formal demonstration of its competence to carry out specific conformity assessment tasks


(B)Third party attestation related to products, processes, systems or persons


(C)Establishment of the status, legitimacy or appropriateness of an institution, programme or module of study


(D)Process in which certification of competency, authority, or credibility is presented


71. Which was the first Forensic lab. in India that got accreditation from NABL in 2001

(A)Central Forensic Science Laboratory, Hyderabad


(B)Central Forensic Science Laboratory, Kolkata


(C)Central Forensic Science Laboratory, Chandigarh


(D)Central Forensic Science Laboratory, CEl, Delhi


72. NABL is an autonomous body in India under the aegIs of

(A)Council of Industrial and Scientific Research


(B)Department of Science and Technology


(C)University Grants Commission


(D)Indian Standardization Institute


73. The ISO 9000 series on quality management and QAlQC was established in:

(A)1991


1985


(C)1987


2000


74. The isoelectric point of an amino acid or protein IS

(A)The pH at which the amino acid or protein has no net charge


(B)Zero at pH 7.0


(C)The pH at which ammo acid or protein IS neither hydrophobic nor hydrophilic


(D)The measure of the hydropathy of an ammo acid or protein


75. By adding SDS (Sodium Dodecyl Sulfate) during the electrophoresis of proteins, it is possible to

(A)Determine a protein's isoelectric point


(B)Determine an enzyme's specific activity


(C)Preserve a protein's native structure and biological activity


(D)Separate protein's exclusively on the basis of molecular weight


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