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. the following in the proper order of investigation of crime at the scene of crimp
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 m cnme scene investigation

unaltered condition


have it as a record for 1.0.


keep it for future investigation


convince the court


5. Corroborative evidence is:

(A)Evidence that refutes other evidence


(B)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
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


A questioned sample is sometimes referred to as a disputed sample


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


(B)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 criome scene reconstruction IS that the evidence Can overwhelm the crime laboratory


Usually provides less information than needed


(C)May have been staged

Supports cnly 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


(C)Both and are correct


(D)They provide complete information


10. What do you mean by Hash in respect of Computer Forensics
Mathematical formula that generates a numerical identifier based on input data


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


Both and are involved


None of the above is correct
11. Which of these instruments produces unique fragmentation pattern and works like Fingerprint for drug identification
GLC


HPLC


lIS

AAS

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


(B)DNA typing


(c)Specific in identification


Invaluable
13. Narco-analysis technique IS against which Article of Indian Constitution

(A)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
Solvents


Volatile compound


Non-metallic elements

Metallic elements
16. FTIR stands for
Fourier Transform IR spectroscopy


Fourier Transmittance IR spectroscopy


Former Transform IR spectroscopy


None of the above
17. The device used for measuring brain response III brain fingerprinting IS
Electroencephalograph

Electroencephalogram


CT Scan


MRI


18. The rate of migration of a molecule In electrophoresis depends on
(A)Strength of the field

Net charge. size and shape


Ionic strength and viscosity


All of the above



19. .-mong the following detectors used in HPLC which is considered as a universal Detector:
(A)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
(A)Stationary phase .


Mobile phase


(C)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 microspectrophotometer employs the light:
(A)LTV

IR

Oblique light

None of these
23. The scientist who gave chromatographv concept was:

(A)Berzelius


Avogadro


(C)Tswett


(D)Lavosier

24. An examination of the development stages of the insects present on the
decomposing corpse may yeild valuble information about:
The circumstances surrounding the death


(B)The post-mortem interval


The identification of the deceased


The age of the deceased

25. The scientific name of the chira is
(A)Antilops errvieapra


(B)Vulpes bengalenis


(C)Capra aegagrus


(D)Panthalops hodgsomi_
26. The most versatile detector available today is
(A)FID

NPD





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


(B)HPLC





(D)Derivative spectrometry
28. Beer-Lambert's law gives a linear correlation with positive gradient
between:
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
(A)Laser


Oblique light


light


IR rays


30. In order to determine RI of glass which microscope is used
Polarizing microscope


Compound microscope


Hot stage microscope

Stereomicroscope

31. Dr. Lawrence A. Farewell discovered:

(A)Narco analysis


Brain fingerprinting


(C)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 PLl beneath the stage:
(A)Polarizer


Analyzer


(C)Objective


None of these


34. All types of chromatography
(A)Have a stationary phase and a mobile phase

(B)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
(A)Paints only


Fibres only


(C)Plastics and Rubber only

All of these


37. A stereoscopic microscope is used for:

(A)Comparing tool marks


(B)Separating useful evidence from contaminating materials


(C)Examinatlons requiring high magnification


(D)All of the above


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

(A)The human eye is more sensitive to electrons than to light rays


(B)The electron beam displaces electrons in the specimen


(C)The electron beam is not subject to refraction



(D)The electron bean operates at shorter wavelengths than light does

39. The operating principle of the mass spectrometer:
Is a function of the ionization rate of the sample compound


Is the same as the gas chromatograph but more accurate


Depends on the mass to charge ration of ionized particles


Was discovered in the 1960's
40. In Neutron activation analysis the sample is bombarded with

Alpha rays


Beta rays


Gamma rays


Neutrons

41. When the temperature of a liquid is raised:

Its RI increases


(B)Its RI decreases


Its RI disappears


Its RI remains constant

42. In Frye Vs. United States:
The trial judge admitted the results of the systolic blood pressure deception test, but he was reversed by the appeals court


Frye ",as found not guilty of murder


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


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

(A)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 photoc(·ll cletl'etor and xenon lamp source, it is a/an:

(A)Mass spectrometer


(B)Infrared spectrophotometer


(C)Microwave instrument


(D)LTV-visible spectrophotometer


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

(A)Scanning electron Microscopy


(B)Mass spectrometry


Infrared spectrometry



(D)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 serial 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
For studying correlation


(B)For calculating probability


(C)For sampling


(D)For studying correlation and calculating probability


53. If a coin IS tossed one time, what is the probability of occurring head

(a)112





0.5


2/3

is correct is correct


and are correct and are correct


54. Wildlife (Protection) Act In India was enacted in
1974


1973


1972


1970
55. India became signatory to CITES In
1977


1985


1970


1976

56. Pugmark length or PML is


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

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 In the year 2009 issued a report on "The polygraph and lie detector" concludes that the evidence collected
using it is
Reliable and justified


Can be admitted in court as an evidence


Unreliable, unscientific and biased


None of the above


58. Narco analysis was first done by

William Bleckwenn


Charles Darwin


Robert House


(Dl Mathew Orlila

59. In polygraph application irrelevant questions
(A)Draw out a stressed response


(B)Evoke a deceptive response to a question


Establish a base-line of subject's guilty-free rCJctlon


(D)None of the above



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

strip search


Spiral search


Quadrant search


All of these

61. Which of the following regions of mt. DNA is used for species identification?
(A)HV1


(B)Cyt b


HV 2


(D)Loop

62. The examination of physical evidence by a forensic scientist 1S usually undertaken for
(A)Proving a suspect's innocence in a courtroom


Proving a suspect's guilty in a courtroom


Identification or comparison purposes


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


(B)Interpretation of computer data


(C)Presentation of computer data


Extraction of computer data

64 The forensic examination or analysis of static data (stored) is often called
Computer forensics


Media forensics


Media analysis


All of these
65. According to the analysis of digital evidence, what should be the best practice?
Forensic examination performances directly


Design an examination process


Create one or more duplicates of the original evidences


The documentation and data reduction steps
66. The analysis of digital evidence comprise phases:
Documentation


Data recovery


Data reduction and extraction


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


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


The process varies among laboratories


All the above are true about the standards and controls for digital evidence process
68. Arrange in a proper sequence
Reverse phase chromatography

(ii)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
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


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:
1991


1985


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 meaSLire of the hydropathy of an ammo acid or protein


74. By adding SDS (Sodium Dodecyl Sulfate) during the electrophoresis of proteins, it is possible to
Determine .. protein's isoelectric point


(B)Determine an enzyme's specific activity


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



(D)Section B


76. Pipette, Burette and Measuring flask have
Random error


Systematic error


Standard error


Absolute error

77. Which parameter causes the uncertainty for analysis


(A)Temperature

(B)Random systematic error

(C)Standard error

(D)Humidity
78. Indeterminate error IS produced by

Instrument


(B)Software

Measuring glassware

Balance
79. Nanogram measurement factor IS










80. Femto unit factor is





10^-12





10^-18


81. The principle of chromatography is
Absorption


(B)Phase rule


Affinity


Partition co-efficient
82. Major greenhouse gases are

(A)Carbon dioxide and methane


Nitrogen and oxygen


(C)Carbon monoxide


Sulphur dioxide


83. Size exclusion chromatography IS applied for the analysis of:

(A)Alcohols


Solvents


(C)Polymers and Proteins


Carbohydrates


84. Lambert and Beer law is applied for:
GC


UV


GC-MS


Ion Chromatography
85. IR analysis is mainly used to determine the:


(A)Functional group


Origin


(C)Cations


Cations and Anions both



86.
Raman spectroscopy involves


Light absorption


Scattering of light


Decomposed light


Emission of light
87. Visible range (400-800 nm) IS generated by
(A)Tungsten lamp


Deuterium lamp


Hydrogen lamp


Mercury lamp

88. In case of suspected alcohol pOlsomng, blood should be collected from

(A)Heart


Pleural Cavity


Abdominal Cavity


(Dl Peripheral Vein


89. Repeatability of measurement is called

(A)Accuracy


Precision


Calibration


Error

90. Delirium is caused by
(A).Opium


Dhatura


Nux-vomica


Calotropis


91. Free-base cocaine IS used by
(A)Sniffing


Smoking


Injecting


Ingestion

92. Which internal standard is used for the determination of alcohol in blood by GC-HS method .
Ethyl acetate


n-propanol


Butyl alcohol


(Dl Amyl alcohol

93. Which colour develops with THC spot on TLC plate when sprayed with Fast Blue B salt solution
(A)Orange


Violet


(C) Red


Blue

94. The molecular formula of CBN (cannabinol) is

(A)CZ1H300Z


CZ1Hz60Z


CZ1HzsOz


CZ1Hz40Z


95. The volatility of Hydrogen Cyanide iS
10 mg/mi


5 mg/m3


mg/m2


10 mg/m1

96. What is the ratio of relative concentration of alcohol in blood and urine
(A)1:1.10


1:1.21


1:1.33


2:1

97. Hyoscine is an alkaloid found in
Nux-vomica


Atropa


Aconite


Scopolamine

98.
The accurate and precised instrumental technique used for quantition of ethyl alcohol


GC-MS


HPLC


(D)HPTLC


99. The physiological active ingredient of cannabis IS
CBN


CBD


THC


None of these
100. What is the use of diatoms earth in chromatography?
Binder


Supportive material


Active ingradient


None of these
101. Which oil has high tendency to spontaneous heating?
(A)Castor oil


Fish oil


(C)Mustard oil


Oleo oil

102. Flammable limit of Butane IS
5.3-14.0


3.0-12.5


(C) 1.9-8.5


4.0-75.0
102. Most suitable container for the storage of burned fire debris suspected of containing as fire accelerant is

(A)Glass jar


Plastic bag


(C)Paper bag


Tin dibba


104. Which form of phenolphthalein gives pink colour
(A)Benzenoid form


EnoEc form


Quinoid form


None of these

105. What temperature the torch in rcp will have
1000-2000 kelvin


500-1000 kelvin


100-2000 kelvin


8000-10000 kelvin
106. group belongs to which explosive compounds?
Acetylene

Fulminates


Organic Azides


Organic Chlorates
107. What is the decomposition temperature of RDX
105°C

280°C


213°C


350°C
108. C-N-NOz group belongs to
Nitro compounds


Nitrate esters


Nitromines


None of these
109. 6 trinitrophenylmethylnitramine is the chemical name of
Tetryl


Tetrazene


IC) PETN


Picric acid
110. Cyclotol is a mixture of:
TNT PETN


TNT Tetryl


RDX TNT


RDX PETN


111. Engine lubricating oil consists of
C5-C10hydrocarbons


C18-C25hydrocarbons


C28-C40hydrocarbons


C12-C18hydrocarbons
112. Which method is most suitable for the extraction of mercury from biological matrices
Dry ashing method


Wet digestion or Acid digestion method


Fresenium and Babo method


Selective chemical treatment method
113. Legal's test is done for the identification of
Formaldehyde


Acetone


Methyl alcohol


Acetaldehyde
114. Opium falls under which class of poisons?
Spinal


Cerebral


Cardiac


Neurotic
115. Calotropis procera falls under which class of poisons?

Irritant


Spinal


Miscellaneous


Cardiac

116. Husemann's test is done for the identification of
Calotropis


Abrin


Aconitum Alkaloids (Aconite alkaloids)


Opium Alkaloids
117. Vital's test is done for the identification of
Nerin


Brucine


Atropine


Thevetin
118. What type of crystals are developed by morphine with potassium
iodide?
Tufts


Needle


Orange plates


Golden yellow needles
119. Curved ferns type of crystals are developed by
Morphine Mercuric Chloride Sol.


Strychnine Gold Chloride Sol.


Strychnine Mercuric Chloride Sol.


Morphine Pot. Mercuric Iodide Sol.

120. In a suspected case of poisoning by strychnine, which organ should be preferred to preserve for toxicological analysis
Brain

Spleen


Kidney


Liver
121. Cramps are caused by
Cyanides


Excess of liquor


Hyoscine


Lead
122. The molecular formula of heroin (Diacetylmorphine) IS

(A)CI7H19NO3


C1sH21NO3


C19H21N04


C21H23N05
123. Which one of the following drugs is present in Papaver somniferum
plant?
Theophylline


Pentazocine


Thebaine


Pethidine
124. In Solid Phase micro Extraction, what is the thickness of coating of stationary phase (polydiIDethylsiloxane) on SPME fibre?

50 JlID


60 JlID


85 JlID


100 JlID

125. The steps like dilution, extraction, filtering are used in
Dry chemistry


Wet chemistry


Phase chemistry


Process
126. Which spectrum is normally considered to be a specific means for identifying a chemical substance
Mass spectrum


IR spectrum


UV spectrum


Visible spectrum
127. Spontaneous fires are caused by
Carelessly discarded bidi/cigarette stubs or burning match sticks


Short-circuiting


Internal changes III the material


Lightning
128. The Duquenois-Levine test IS a valuable colour test for
Opium


Cannabis


Nux-vomica


Oleander
129. A system of personal identification using various body measurement was first devised by
Edmond Locard


Mathieu Orfila



Alphonse Be.tiEcn


Leone Lattes

130. The blood of a drunken driver drawn to know the concentration of alcohol is preserved with
Sodium Chloride


EDTA


Sodium Fluoride


Phenylmercuric Nitrate
131. Structural formula of Alkane IS
CnH2n


(B)CnH2n+2


(C)CnH2n_2


C5H2n-1
132. Fire mechanism IS based on
Oxidation


Reduction


Redox


None of these
133. The lowest temperature at which a liquid gives off sufficient vapour to form a mixture with air that will support combustion


(A)Ignition temperature


Flash point


(C)Flash over


Flash back


134. To recover high-explosive residues, debris recovered from the site of an explosion is routinely rinsed with

(A)Deionized water


Propanol


(C)Methanol


Acetone

135. On which principle does colour pattern of fire work?
Electromagnetic force


Electromagnetic radiation


Thermodynamics-3rd law


None of these
136. What is the unit of specific gravity
Gram


Gm/cc


g/cm3


None of these
137. What is plotted in Mass-spectrum
Number of radical vs. time


Time vs. m/e



Ion abundance vs. m/e


Time vs. Ion abundance
138. Aqua-regia solution contains
IHN03 3HCl


3HN03 lHCl


IHN03 lHCl


2HN03 lHCl
139. The collection debris at the origin of a fire should include all
Porous material


Non-porous materials


Porous and non-porous both materials


None of the above
140. ECD is basically used for the detection of

(A)Hydrocarbons


Halides


(C)Nitrogenous compounds


Phosphated compounds

141. Which one is a primary explosive?
RDX


ANFO


TNT

(D)PbN3
142. Ammonium nitrate Fuel oil IANFO) is equivalent to
60% TNT


120% TXT


30% TNT


TXT
143. The blasting grade ANFO prills contain
oxygen


oxygen


35% oxygen


20% oxygen
144. Which one of the following IS a specific detector for organo-phosphorus compounds?
FID

XPD


ECD


HWD
145. The energy of photon IS directly proportional to its
Incident angle


Reflection angle


Frequency


Absorption
146. The approximate concentration of ethyl alcohol in Sherry and Port wines IS


40-60%


15-20%


95-97.5%
147. Which enzyme IS responsible to convert the sugars into ethanol
(A)Lypase


Peroxidase


(C)Catalase


Zymase
148. The end product of methyl alcohol metabolism is
Acetaldehyde


Formaldehyde


Acetic acid


Formic acid
149. What is the Anti-dote for methyl alcohol pOisonmg
Atropine


Ethanol


Nalmorphine


Caffeine
150. The correct method of preserving clothes stained with vomitus in a poisoning case IS
Air dried in shade and preserved


. Sun dried and preserved


Preserved with sodium chloride solution


Immediately packed in a polythene bag