FACT and FACT Plus Exam 20 March 2022
Exam Name | FACT and FACT Plus Exam 20 March 2022 |
Test Date | 20/03/2022 |
Test Time : | 9:00 AM – 11:00 AM |
Subject | Forensic Physical Sciences (FACT) |
Contents
Section I: Aptitude in Forensic Science
Section II: Forensic Physical Sciences
Q.51. Refractive Index of the Diamond is
- 2.9
- 2.52
- 2.41
- 2.12
Answer: 3. 2.41
Q.52. Fine carbonaceous material in the discharge residues are known as :
- Gunshot Residue
- Bullet wipe mark
- Scorches
- Blackening
Answer: 4. Blackening
Q.53. Which one of the following variables is not categorical?
- Marital status of a person (single, married, divorced, other)
- Choice on a test item: true or false
- Gender of a person: male or female
- Age of a person
Answer: 4. Age of a Person
Q.54. Method of removing Serial number from stolen weapon by hammering of the surface with a round punch to completely hide the number. :
- Over stamping
- Grinding
- Peening
- Centre punching
Answer: 3. Peening
Q.55. Computers can be involved in which of the following types of crime?
- Homicide and sexual assault
- Computer intrusions and intellectual property theft
- Civil disputes
- Phishing
Choose right answer from one of the following:
- a, c and d
- both a and b
- a, b, c and d
- a, b, and d
Answer: 3. a, b, c and d
Q.56. Which of the following is a principle component of dynamite-
- TNT
- RDX
- Nitro-glycerine
- Black powder
Answer: 3. Nitro-Glycerine
Q.57. Tiny dots combine to form a digital image called?
- Electrolyte
- Cell
- Resolution
- Pixel
Answer: 4. Pixel
Q.58. Smokeless gun powder is
- Nitrocellulose, Sulphur, and Charcoal
- Potassium nitrate, Sulphur & Nitroglycerine
- Nitrocellulose & Nitroglycerine
- Potassium nitrate, Sulphur, and Charcoal
Answer: 3. Nitrocellulose & Nitroglycerine
Q.59. Which type of identification marks on metal surface cannot be restored after obliteration?
- Punched marks
- Engraved marks
- Over
- Cast marks
Answer: 4. Cast Mark
Q.60. Statement A: Sectional Density of bullet decreases with decrease in Diameter of bullet
Statement B: Sectional Density of bullet increases with Increase in Weight of bullet
- Both are true.
- Statement A is true and statement B is false.
- Both are false.
- Statement B is true and statement A is false.
Answer: 4. Statement B is true and statement A is false.
Q.61. Resistance is a variable that relates flow and pressure accordance of important law called?
- Baye’s theorem
- Lombard effect
- Fundamental law
- Ohm’s law
Answer: 4. Ohm’s Law
Q.62. The “fingerprint” IR spectrum can be seen using:
- Polarizing microscope
- Scanning electron microscope
- Stereoscopic microscope
- Micro-spectrophotometer
Answer: 4. Micro-spectrophotometer
Q.63. The acidification in Indian ink is majorly due to the addition of which component?
- Hydrochloric Acid
- Iodine
- Silver Nitrate
- Ammonia
Answer: 4. Ammonia
Q.64. Which of the following procedure of accident data collection involves obtaining information such as measurement of skid marks?
- Cause Analysis
- Technical Preparation
- At Scene-Investigation
- Reporting
Answer: 3. At Scene-Investigation
Q.65. NTSC stands for
- National Television Standards Committee
- Natural television service circuit
- Nation telemarketing standard commission
- National Television Standards circuit
Answer: 1. National Television Standards Committee
Q.66. For the following four molecules: acetone, benzene, dimethyl ether, ethane (each of which contains only one type of proton) the correct order of chemical shift (in δ units) is which of the following?
- Benzene < acetone < dimethyl ether < ethane
- Benzene > dimethyl ether > acetone > ethane
- Benzene < ethane < acetone < dimethyl ether
- Benzene > ethane > acetone > dimethyl ether
Answer: 2. Benzene > dimethyl ether > acetone > ethane
Q.67. The maximum displacement or distance moved by a point on a vibrating body/wave measured from its equilibrium portion. It is equal to one half the length of vibration called?
- Amplitude
- Resonance
- Frequency
- Ideolectal
Answer: 1. Amplitude
Q.68. Statement A: It is impossible to match bullets from polygonal rifle barrels.
Statement B: With fully automatic weapons and self-loading pistols, rifles and shotguns, the empty cartridge case is manually ejected from the weapon after firing.
- Both are false.
- Statement A is true and statement B is false.
- Statement B is true and statement A is false.
- Both are true.
Answer: 1. Both are False
Q.69. Who patented the needle gun and in which year?
- Joshua, 1840
- Frosythe, 1807
- Dreyse, 1828
- Alexander, 1740
Answer: 3. Dreyse, 1828
Q.70. Incendiary bullet contains:
- Sulphur
- Wax
- Phosphorus
- All of these
Answer: 3. Phosphorus
Q.71. Variation of ________ in tool angle may cause a significant influence on the matching of the questioned and standard tool mark of the same tool.
- above 20°
- 20°
- 10°
- 5°
Answer: 3. 100
Q.72. In _____ the color of every pixel is different when compressed.
- BMP
- GIF
- JPEG
- JPG
Answer: 2. GIF
Q.73. Which of the following is also known as ADAM’S APPLE?
- Arytenoid cartilage
- Thyroid cartilage
- Epiglottis
- Corniculate cartilage
Answer: 2. Thyroid Cartilage
Q.74. Assertion (A): The range of fire can be determined by the spread of pellets.
Reason (R): Because shot gun cartridges are loaded with multiple pellets.
- Both A and R are true
- Both A and R are false
- A is false but R is true
- A is true but R is false
Answer: 4. A is true but R is false
Q.75. Which of the following section of the Indian evidence Act 1872 describes electronic evidence?
- Section 65B
- Section 65C
- Section 65A
- Section 65D
Answer: 1. Section 65B
Q.76. The flameless ignition temperature of Pyrodex is?
- 300º C
- 200º C
- 500º C
- 400º C
Answer: 4. 400º C
Q.77. Pistols have a firing range around-
- 45-50 yards
- 90-100 yards
- 15-25 yards
- 30-50 yards
Answer: 1. 45-50 yards
Q.78. The Raman Spectrum is said to consist of strokes lines when
- Δv<0
- Δv>0
- Δv=0
- Does not depend on Δv
Answer: 2. Δv>0
Q.79. Carboxylic acids have ore chemical shift than alcohols due to
- Decreased H-bonding
- Decreased electronegativity
- Increased delocalization
- Increased de-shielding
Answer: 4. Increased de-shielding
Q.80. Ascending order of a data hierarchy
- Byte – Bit – File – Fields – Data base – Record
- Bit- Byte- Field-Record- File- Data base
- Bit- Byte- Field- File – Record – Data base
- Byte – Bit – Fields-Record- File- Data base
Answer: 2. Bit- Byte- Field-Record- File- Data base
Q.81. Fry’s reagent comprises of
- Cupric chloride
- Hydrochloric acid
- Nitric acid
- Silver nitrate
Choose right answer from one of the following:
- b, c and d
- a and b
- a and c
- a and d
Answer: 2. a and b
Q.82. Elaborate GEQD.
- Government Examiner of Questioned Documents
- Government Evaluator of Questioned Documents
- Genuine Evaluation of Questioned Documents
- Genuine Examination of Questioned Documents
Answer: 1. Government Examiner of Questioned Documents
Q.83. The annealing temperature for glass is
- 100- 150˚C
- 900- 1000˚C
- 700- 950˚C
- 500- 650˚C
Answer: 4. 500- 650˚C
Q.84. .315” CAL is equivalent to
- 6 mm
- 5 mm
- 9 mm
- 8 mm
Answer: 4. 8mm
Q.85. Polarising microscope can be used to study the
- Birefringence
- Refractive indexes
- Retardation order
- All of them
Answer: 4. All of Them
Q.86. What is the name of the device that allows four surveillance camera images to be viewed on a monitor at the same time?
- A modulator
- A video splitter
- A quad switcher
- A photoelectric sensor
Answer: 3. A quad switcher
Q.87. The term ‘Expert evidence’ is defined in section
- 45, Indian Evidence Act
- 131, Indian Evidence Act
- 45, Criminal Procedure code
- 131, Criminal Procedure code
Answer: 1. 45, Indian Evidence Act
Q.88. The elemental composition of paper can be determined using which techniques?
- SEM-EDS
- NMR
- UV spectroscopy
- IR spectroscopy
Answer: 1. SEM-EDS
Q.89. The material used to construct the diffracting crystal is
- Tungsten
- Molybdenum
- Sodium Chloride
- Cobalt
Answer: 3. Sodium Chloride
Q.90. Deflection in CRTs used in TV receivers is done:
- Electrostatically for both vertical and horizontal
- Electrostatically for vertical and magnetically for horizontal
- Magnetically for both vertical and horizontal
- Magnetically for vertical and Electrostatically for horizontal
Answer: 3. Magnetically for both vertical and horizontal
Q.91. Time signal can be converted into frequency signal by using
- Fourier Transformation
- Laplace Transformation
- Differential equations
- Differentiation
Answer: 1. Fourier Transformation
Q.92. Which of the following acid is widely used as chemical erasure?
- Carbolic acid
- Sulphuric acid
- Oxalic acid
- Hydrochloric acid
Answer: 3. Oxalic Acid
Q.93. What is viewed as problem of probabilistic inference?
- Speaking
- Speech recognition
- Utterance
- Hearing
Answer: 2. Speech Recognition
Q.94. Making of a false document comes under which section of IPC?
- 466
- 467
- 463
- 464
Answer: 4. 464
Q.95. The source of sound energy for speech production is
- Larynx
- Vocal cord
- Nasal cavity
- Pharynx
Answer: 2. Vocal Cord
Q.96. Which of the following is an Auger transition starting from a hole in 1s levels which would be filled up from the 2p level?
- KLL transition
- LLM transition
- KLM transition
- LMN transition
Answer: 1. KLL Transition
Q.97. Which of the following signal is used in speech recognition?
- Acoustic signal
- Electromagnetic signal
- Electric signal
- Frequency signal
Answer: 1. Acoustic signal
Q.98. Pitch of human male speech sound ranges between
- 100- 120 Hz
- 200- 230 Hz
- 120-190 Hz
- 60- 150 Hz
Answer: 1. 100-120 Hz
Q.99. Kromekote paper method is used in the following:
- Detecting explosive residue
- Deciphering erased writing
- Detecting GSR
- Deciphering sequence of intersecting strokes
Answer: 4. Deciphering sequence of intersecting strokes
Q.100. The most commonly used laser for Raman spectroscopy is
- Ruby Laser
- He-Ne laser
- He-Hg
- Semi-conductor laser
Answer: 2. He-Ne laser
Q.101. Fractures due to heat are
- Concentric
- Wavy
- Radial
- Spiral
Answer: 2. Wavy
Q.102. Which of the following section of the Indian Evidence Act 1872 describes tape-recorded conversation/ dialogue?
- Section 10
- Section 7
- Section 9
- Section 8
Answer: 4. Section 8
Q.103. “There is plenty of room at the bottom”, this was stated by
- Professor Norio Taniguchi
- Richard Feynman
- Sumio Lizima
- Eric Drexler
Answer: 1. Professor Norio Taniguchi
Q.104. The physical examination of paint included
- None of them
- Color
- Elemental structure
- Composition
Answer: 2. Color
Q.105. NCIC stands for:
- National Crime Information Center
- National Center for Information Control
- National Criminal Information Control
- None of these
Answer: 1. National Crime Information Center
Q.106. Type written documents comprises of which type of ink?
- Oil-based ink
- Water based ink
- Aqueous ink
- Dye based ink
Answer: 1. Oil-based ink
Q.107. A computer database containing images of bullets and cartridge cases recovered from scenes or test fired from seized firearms is known by the acronym:
- NIBIN
- IAFIS
- GRC
- SWGGUN
Answer: 1. NIBIN
Q.108. Which of the following is not a term that is used to indicate the shape of a bullet?
- Round nose
- Wadcutter
- Cannelure
- Spitzer
Answer: 3. Cannelure
Q.109. Which of the following parts of the vocal tract is important in voice identification?
- Articulator
- Larynx
- Pharynx
- Respiratory system
Answer: 1. Articulator
Q.110. During Combustion of Gun Powder, the rate of reaction is __________ proportional to pressure.
- Quadratic
- Linear
- None of these
- Exponential
Answer: 4. Exponential
Q.111. Where is larynx located?
- Posterior to nasal and oral cavity
- Posterior to esophagus
- Superior to pharynx
- Midline of neck
Answer: 4. Midline of neck
Q.112. Snap haunt is a following weapon
- Flint lock muzzle loader
- Percussion Lock
- Wheel lock
- Match loch
Answer: 2. Percussion Lock
Q.113. Which characteristic is this? “We can distinguish between sound having same pitch and loudness.”
- Pitch
- Tone
- Timber
- Note
Answer: 3. Timber
Q.114. The process of documenting the seizure of CCTV Footage evidence and, in particular, when that evidence changes hands, is known as:
- None of these
- Field notes
- Chain of custody
- Interim report
Answer: 3. Chain Of Custody
Q.115. Minimum color depth of video files are ______.
- 16 bit
- 256 colors
- 16 bit (true)
- 16 color
Answer: 2. 256 Colors
Q.116. The diameter of percussion cap for small caliber rifles is:
- 1mm
- 4.3 mm
- 10mm
- 2mm
Answer: 2. 4.3 mm
Q.117. Simpson’s Paradox occurs when
- No baseline risk is given, so it is not known whether or not a high relative risk has practical importance
- The results of a test are statistically significant but are really due to chance.
- The direction of the relationship between two variables changes when the categories of a confounding variable are taken into account
- A confounding variable rather than the explanatory variable is responsible for a change in the response variable
Answer: 3. The direction of the relationship between two variables changes when the categories of a confounding variable are taken into account
Q.118. Copper is a major component in which type of ink-
- Dyestuff ink
- Iron gallotinate ink
- Carbon ink
- Log wood ink
Answer: 4. Log wood ink
Q.119. What should a CCTV operator do first if they observe a crime in progress?
- Switch to real time recording, note the time and inform the police of the incident
- Put camera in time lapse mode and request assistance from a colleague
- Contact the local police to report the incident and await further instructions
- Open an incident log and note all relevant details before starting recording
Answer: 1. Switch to real time recording, note the time and inform the police of the incident
Q.120. Raman spectroscopy is generally carried out in which region
- Visible
- IR
- Radio-wave
- Ultra-violet
Answer: 1. Visible