FORENSIC SCIENCE- PHYSICS
FORENSIC SCIENCE- PHYSICS MCQs
1. What term usually describes a person who gains access to computer systems illegally?
(A) Breaker (B) Hacker (C) Con artist (D) Shacker
Ans: B
2. Magnification power of light microscope is
(A) 1500X (B) 2000X (C) 1000X (D) 2500X
Ans: A
3. Which of the following compounds has the MOST deshielded methyl protons?
(A) Tetramethylsilane (B) Methyl fluoride (C) Methanol (D) Methyl amine
Ans: B
4. Match the following
List – I List – II
(P) Single action striation mark (i) Hammer
(Q) Punch mark (ii) Pliers
(R) Repeated action tool marks (iii) Screw drive
(S) Cutting mark of wire (iv) Drill
Codes :
(A) (P) – (iii), (Q) – (ii), (R) – (i), (S) – (iv)
(B) (P) – (iii), (Q) – (i), (R) – (iv), (S) - (ii)
(C) (P) – (iv), (Q) – (iii), (R) – (i), (S) - (ii)
(D) (P) – (ii), (Q) – (iv), (R) – (i), (S) - (iii)
Ans: B
5. In ICP-MS, the ICP torch serves as a
(A) Ionizer (B) Atomizer (C) Both (A) & (B) (D) Detector
Ans: C
6. What is the first step for an investigator attempting to preserve glass evidence from a window in a structure?
(A) Photograph it in detail. (B) Move it to the laboratory as soon as possible.
(C) It is not worth preserving. (D) Immediately test for latent prints.
Ans: A
7. Foot prints recovered from crime scene can lead you to:
(A) Stature of victim or culprit (B) Sex of the victim or culprit (C) Personal Identification (D) All of the above
Ans: D
8. ............... are created when fingers touch against some material such as a newly painted surface.
(A) Latent/invisible prints (B) Plastic prints (C) Contaminated/visible prints (D) Points
Ans: B
9. Which of the following does NOT use a ‘Cryptographical Technique’ to protect data?
(A) the use of digital signatures (B) data encryption
(C) the use of stored encrypted password files (D) using asymmetric keys at ‘sender’ and ‘receiver’ nodes
Ans: C
10. What causes a program to trigger damage under certain conditions?
(A) A scavenger (B) A bomb (C) A trapdoor (D) A zapper
Ans: B
11. What characteristic makes the internet so attractive?
(A) the ‘secure’ surroundings within which it is implemented (B) the ability to provide an open, easy-to-use network
(C) it eliminates the need for firewalls (D) you don’t require a fast computer to use the internet
Ans: B
12. The process of population inversion is to increase the number of atoms in the
(A) Excited state. (B) Ground state. (C) Intermediate state. (D) Excited state and ground state.
Ans: A
13. Laser can be used in the
(A) Fission Reaction (B) Polazaration (C) Thermo-Nuclear Fusion. (D) Production of white light
Ans: C
14. The microscope which produces 2- dimensional images of a sample by detecting primary electrons transmitted from the sample is called
(A) Simple microscope (B) TEM (C) Compound microscope (D) Phase contrast microscope
Ans: B
15. The oldest Central Forensic Science Laboratory in India was established at
(A) Hyderabad (B) Kolkata (C) New Delhi (D) Chandigarh
Ans: B
16. The Following is a Regenerated Fiber.
(A) Cotton (B) Artificial Silk (C) Rayon (D) Terrrylene
Ans: C
17. Foot Prints On Snow may be casted by:
(A) Plaster of Paris (B) Wax (C) Sulphur (D) Alumina
Ans: C
18. According to 4R rule, Radial Factures on glass sheet initially appears on ............…
(A) Side Of Impact (B) Opposite side of impact (C) Both side (D) The edge
Ans: B
19. Cement prepared from raw materials free from iron oxide is called
(A) White cement (B) Hardening cement (C) Colored cement (D) Low heat cement
Ans: A
20. The insoluble residue in the cement sample which are only analyzed in the forensic context are:
(A) Silica and lime (B) Lime and magnesia (C) Magnesia and Silica (D) Alumina and Magnesia
Ans: A
21. A reliable evidence for sex determination is:
(A) External Sexual Structures (B) Distribution of hair in the body (C) Sex hormones (D) Behavior of an individual
Ans: C
22. Locard’s principle of exchange justifies:
(A) Like should be compared with like (B) Unlike should compared with like
(C) Feature identification (D) Individual characteristics verification
Ans: A
23. GSR is a acronym used for:
(A) Gunshot residues (B) General scene reconstruction (C) Gun shoot range (D) Gun shoot recoil
Ans: A
24. In a car accident, the speed of vehicle can be tabulated from:
(A) Pressure (B) Several scratches (C) Skid marks (D) V shape
Ans: C
25. A qualitative risk assessment is used to identify:
(A) Vulnerabilities, threats, and countermeasures (B) Vulnerabilities, threats, threat probabilities, and countermeasures
(C) Assets, risks, and mitigation plans (D) Vulnerabilities and countermeasures
Ans: B
26. An organization suffered a virus outbreak when malware was downloaded by an employee in a spam message. This outbreak might not have happened had the organization followed what security principle:
(A) Heterogeneity (B) Fortress (C) Integrity (D) Defense in depth
Ans: D
27. An intruder wishes to break in to an application in order to steal information stored there. Because the application utilizes strong authentication, what is the most likely approach the intruder will take?
(A) Dictionary attack (B) Malicious code attack (C) Application bypass attack (D) Password guessing attack
Ans: C
28. A computer programme that is designed to rapidly copy itself from one computer to another, leveraging some network medium like e-mail, TCP/IP, etc. is called
(A) Computer worm (B) Trojan horse (C) Trap door (D) Logic bomb
Ans: A
29. Writing a software that automates the process of repeatedly sending e-mail to a large number of recipients is called
(A) Spoofing (B) Remailing (C) Mail spamming (D) Stealing
Ans: C
30. The art of concealing messages to introduce secrecy in information security is known as
(A) Cryptography (B) Pornography (C) Steganography (D) Software piracy
Ans: A
31. The least dangerous malware which displays ads on your computer is
(A) Adware (B) Spyware (C) Virus (D) Worm
Ans: A
32. XSS attack where the injected script is permanently stored on the target servers is called
(A) Stored XSS attack (B) Reflected XSS attack (C) DOM based XSS attack (D) All the above
Ans: A
33. Stealing of cookies when the user follows a link sent by an attacker is due to
(A) Reflected XSS attack (B) Stored XSS attack (C) DOM based XSS attack (D) Both (A) & (C)
Ans: A
34. A mechanism to protect private networks from outside attack is called
(A) Antivirus (B) Digital signature (C) Firewall (D) Formatting
Ans: C
35. The rules complying with the collection of electronic evidence include:
(A) Admissibility (B) Authenticity (C) Complete and reliable (D) All the above
Ans: D
36. Which of the following is a social engineering technique?
(A) Baiting (B) Phishing (C) Diversion theft (D) All of the above
Ans: D
37. Buffer overflow, SQL injection, and stack smashing are examples of:
(A) Vulnerabilities (B) Exploits (C) Input attacks (D) Injection attacks
Ans: C
38. Which of the analytical technique is based on Bragg’s equation?
(A) XRD (B) Raman (C) IR (D) Chromatography
Ans: A
39. Which of the following is used to determine the molecular mass of an organic molecule?
(A) IR spectrum (B) Mass spectrum (C) Proton nmr spectrum (D) Absorption spectrum
Ans: B
40. Which type of scattering results in a longer wavelength than the incident light?
(A) Rayleigh (B) Stokes (C) Antistokes (D) None
Ans: B
41. Which of these properties must change for a mode to be Raman active?
(A) Polarizability (B) Dipole Movement (C) Density (D) Volume
Ans: A
42. Rugoscopy is the study of
(A) Lip prints (B) Finger prints (C) Palatal prints (D) Foot prints
Ans: C
43. Anisotropic materials have
(A) Single refractive index (B) Two or three principle refractive indices (C) No refractive index (D) None of the above
Ans: B
44. Dermatoglyphics is the study of
(A) Palmer creases (B) Friction ridges (C) Flexion ridges (D) All of these
Ans: D
45. In differential scanning calorimetry, the following are recorded:
(A) Differences in temperature (B) Differences in light (C) Differences in energy (D) Differences in frequency
Ans: C
46. Speaker recognition can be best performed by:
(A) Auditory Analysis (B) Frequency Analysis (C) Voice Spectrographic analysis (D) All of the above
Ans: D
47. The characteristic X-ray emission is accompanied by:
(A) a-particle emission (B) Electron emission (C) Positron emission (D) K-electron capture
Ans: D
48. ............... happens when exposure to high temperatures and rates of heating causes the surface tensile strength of concrete masonry or brick to decay resulting in mechanical forces within the material.
(A) Crazing (B) Depth of char (C) Alligatoring (D) Spalling
Ans: D
49. A mass spectrum is a plot of relative abundance versus
(A) Mass to charge ratio (B) Energy to mass ratio (C) Charge to mass ratio (D) Mass to energy ratio
Ans: A
50. The advantages of TEM over SEM are
(A) Higher resolution (B) High magnifying power (C) Electron beam passes through the sample (D) All the above
Ans: D
(A) Breaker (B) Hacker (C) Con artist (D) Shacker
Ans: B
2. Magnification power of light microscope is
(A) 1500X (B) 2000X (C) 1000X (D) 2500X
Ans: A
3. Which of the following compounds has the MOST deshielded methyl protons?
(A) Tetramethylsilane (B) Methyl fluoride (C) Methanol (D) Methyl amine
Ans: B
4. Match the following
List – I List – II
(P) Single action striation mark (i) Hammer
(Q) Punch mark (ii) Pliers
(R) Repeated action tool marks (iii) Screw drive
(S) Cutting mark of wire (iv) Drill
Codes :
(A) (P) – (iii), (Q) – (ii), (R) – (i), (S) – (iv)
(B) (P) – (iii), (Q) – (i), (R) – (iv), (S) - (ii)
(C) (P) – (iv), (Q) – (iii), (R) – (i), (S) - (ii)
(D) (P) – (ii), (Q) – (iv), (R) – (i), (S) - (iii)
Ans: B
5. In ICP-MS, the ICP torch serves as a
(A) Ionizer (B) Atomizer (C) Both (A) & (B) (D) Detector
Ans: C
6. What is the first step for an investigator attempting to preserve glass evidence from a window in a structure?
(A) Photograph it in detail. (B) Move it to the laboratory as soon as possible.
(C) It is not worth preserving. (D) Immediately test for latent prints.
Ans: A
7. Foot prints recovered from crime scene can lead you to:
(A) Stature of victim or culprit (B) Sex of the victim or culprit (C) Personal Identification (D) All of the above
Ans: D
8. ............... are created when fingers touch against some material such as a newly painted surface.
(A) Latent/invisible prints (B) Plastic prints (C) Contaminated/visible prints (D) Points
Ans: B
9. Which of the following does NOT use a ‘Cryptographical Technique’ to protect data?
(A) the use of digital signatures (B) data encryption
(C) the use of stored encrypted password files (D) using asymmetric keys at ‘sender’ and ‘receiver’ nodes
Ans: C
10. What causes a program to trigger damage under certain conditions?
(A) A scavenger (B) A bomb (C) A trapdoor (D) A zapper
Ans: B
11. What characteristic makes the internet so attractive?
(A) the ‘secure’ surroundings within which it is implemented (B) the ability to provide an open, easy-to-use network
(C) it eliminates the need for firewalls (D) you don’t require a fast computer to use the internet
Ans: B
12. The process of population inversion is to increase the number of atoms in the
(A) Excited state. (B) Ground state. (C) Intermediate state. (D) Excited state and ground state.
Ans: A
13. Laser can be used in the
(A) Fission Reaction (B) Polazaration (C) Thermo-Nuclear Fusion. (D) Production of white light
Ans: C
14. The microscope which produces 2- dimensional images of a sample by detecting primary electrons transmitted from the sample is called
(A) Simple microscope (B) TEM (C) Compound microscope (D) Phase contrast microscope
Ans: B
15. The oldest Central Forensic Science Laboratory in India was established at
(A) Hyderabad (B) Kolkata (C) New Delhi (D) Chandigarh
Ans: B
16. The Following is a Regenerated Fiber.
(A) Cotton (B) Artificial Silk (C) Rayon (D) Terrrylene
Ans: C
17. Foot Prints On Snow may be casted by:
(A) Plaster of Paris (B) Wax (C) Sulphur (D) Alumina
Ans: C
18. According to 4R rule, Radial Factures on glass sheet initially appears on ............…
(A) Side Of Impact (B) Opposite side of impact (C) Both side (D) The edge
Ans: B
19. Cement prepared from raw materials free from iron oxide is called
(A) White cement (B) Hardening cement (C) Colored cement (D) Low heat cement
Ans: A
20. The insoluble residue in the cement sample which are only analyzed in the forensic context are:
(A) Silica and lime (B) Lime and magnesia (C) Magnesia and Silica (D) Alumina and Magnesia
Ans: A
21. A reliable evidence for sex determination is:
(A) External Sexual Structures (B) Distribution of hair in the body (C) Sex hormones (D) Behavior of an individual
Ans: C
22. Locard’s principle of exchange justifies:
(A) Like should be compared with like (B) Unlike should compared with like
(C) Feature identification (D) Individual characteristics verification
Ans: A
23. GSR is a acronym used for:
(A) Gunshot residues (B) General scene reconstruction (C) Gun shoot range (D) Gun shoot recoil
Ans: A
24. In a car accident, the speed of vehicle can be tabulated from:
(A) Pressure (B) Several scratches (C) Skid marks (D) V shape
Ans: C
25. A qualitative risk assessment is used to identify:
(A) Vulnerabilities, threats, and countermeasures (B) Vulnerabilities, threats, threat probabilities, and countermeasures
(C) Assets, risks, and mitigation plans (D) Vulnerabilities and countermeasures
Ans: B
26. An organization suffered a virus outbreak when malware was downloaded by an employee in a spam message. This outbreak might not have happened had the organization followed what security principle:
(A) Heterogeneity (B) Fortress (C) Integrity (D) Defense in depth
Ans: D
27. An intruder wishes to break in to an application in order to steal information stored there. Because the application utilizes strong authentication, what is the most likely approach the intruder will take?
(A) Dictionary attack (B) Malicious code attack (C) Application bypass attack (D) Password guessing attack
Ans: C
28. A computer programme that is designed to rapidly copy itself from one computer to another, leveraging some network medium like e-mail, TCP/IP, etc. is called
(A) Computer worm (B) Trojan horse (C) Trap door (D) Logic bomb
Ans: A
29. Writing a software that automates the process of repeatedly sending e-mail to a large number of recipients is called
(A) Spoofing (B) Remailing (C) Mail spamming (D) Stealing
Ans: C
30. The art of concealing messages to introduce secrecy in information security is known as
(A) Cryptography (B) Pornography (C) Steganography (D) Software piracy
Ans: A
31. The least dangerous malware which displays ads on your computer is
(A) Adware (B) Spyware (C) Virus (D) Worm
Ans: A
32. XSS attack where the injected script is permanently stored on the target servers is called
(A) Stored XSS attack (B) Reflected XSS attack (C) DOM based XSS attack (D) All the above
Ans: A
33. Stealing of cookies when the user follows a link sent by an attacker is due to
(A) Reflected XSS attack (B) Stored XSS attack (C) DOM based XSS attack (D) Both (A) & (C)
Ans: A
34. A mechanism to protect private networks from outside attack is called
(A) Antivirus (B) Digital signature (C) Firewall (D) Formatting
Ans: C
35. The rules complying with the collection of electronic evidence include:
(A) Admissibility (B) Authenticity (C) Complete and reliable (D) All the above
Ans: D
36. Which of the following is a social engineering technique?
(A) Baiting (B) Phishing (C) Diversion theft (D) All of the above
Ans: D
37. Buffer overflow, SQL injection, and stack smashing are examples of:
(A) Vulnerabilities (B) Exploits (C) Input attacks (D) Injection attacks
Ans: C
38. Which of the analytical technique is based on Bragg’s equation?
(A) XRD (B) Raman (C) IR (D) Chromatography
Ans: A
39. Which of the following is used to determine the molecular mass of an organic molecule?
(A) IR spectrum (B) Mass spectrum (C) Proton nmr spectrum (D) Absorption spectrum
Ans: B
40. Which type of scattering results in a longer wavelength than the incident light?
(A) Rayleigh (B) Stokes (C) Antistokes (D) None
Ans: B
41. Which of these properties must change for a mode to be Raman active?
(A) Polarizability (B) Dipole Movement (C) Density (D) Volume
Ans: A
42. Rugoscopy is the study of
(A) Lip prints (B) Finger prints (C) Palatal prints (D) Foot prints
Ans: C
43. Anisotropic materials have
(A) Single refractive index (B) Two or three principle refractive indices (C) No refractive index (D) None of the above
Ans: B
44. Dermatoglyphics is the study of
(A) Palmer creases (B) Friction ridges (C) Flexion ridges (D) All of these
Ans: D
45. In differential scanning calorimetry, the following are recorded:
(A) Differences in temperature (B) Differences in light (C) Differences in energy (D) Differences in frequency
Ans: C
46. Speaker recognition can be best performed by:
(A) Auditory Analysis (B) Frequency Analysis (C) Voice Spectrographic analysis (D) All of the above
Ans: D
47. The characteristic X-ray emission is accompanied by:
(A) a-particle emission (B) Electron emission (C) Positron emission (D) K-electron capture
Ans: D
48. ............... happens when exposure to high temperatures and rates of heating causes the surface tensile strength of concrete masonry or brick to decay resulting in mechanical forces within the material.
(A) Crazing (B) Depth of char (C) Alligatoring (D) Spalling
Ans: D
49. A mass spectrum is a plot of relative abundance versus
(A) Mass to charge ratio (B) Energy to mass ratio (C) Charge to mass ratio (D) Mass to energy ratio
Ans: A
50. The advantages of TEM over SEM are
(A) Higher resolution (B) High magnifying power (C) Electron beam passes through the sample (D) All the above
Ans: D
51. All of the following are examples of special stain except:
(A) Ziehl-Neelsen acid-fast stain (B) Endospore stain (C) Flagellar stain (D) Negative stains
Ans: D
52. X-ray is an:
(A) Electronic Magnetic Radiation (B) Elastic Wave (C) Stress wave (D) None
Ans: A
53. Which of the following wavelength fall in the range of X-ray:
(A) 0.1A (B) 1A (C) 10A (D) 100A
Ans: A
54. For the production of X-ray target material should have?
(A) High Conductivity (B) Medium Conductivity (C) Low Conductivity (D) Non-conductor
Ans: A
55. X-ray with low Penetrating power are called?
(A) Hard X-ray (B) Soft X-ray (C) Both (D) None
Ans: B
56. Frequency of K series X-ray lines than that of L series X-ray line is ............…
(A) Greater (B) Lower (C) Zero (D) None
Ans: A
57. Which of the analytical technique is more suitable for the identification purpose?
(A) MS (B) GC (C) TLC (D) Paper chromatography
Ans: A
58. The characteristic feature of any form of Chromatography is:
(A) Use of molecules that are soluble in water. (B) Use of mobile and stationary phase.
(C) Use of an inert carrier gas (D) Using Rf value to determine the compound
Ans: B
59. Which of the following is most suitable gas to use as a carrier gas in gas chromatography?
(A) Methane. (B) Helium (C) Oxygen (D) Carbon dioxide
Ans: B
60. A new youth drink contains Sugar, Salt, Alcohol and Vitamin C. A gas chromatogram could be used to determine the:
(A) Concentration of all ingredients in the drink (B) Alcohol and sugar content only.
(C) Alcohol, sugar and vitamin C content only. (D) Alcohol content only.
Ans: D
61. Which of the following is used to determine the elemental content?
(A) AAS (B) EDXRF (C) AES (D) All
Ans: D
62. Which of the following is the non-destructive technique?
(A) EDXRF (B) C-Scan (C) Microscopy technique (D) All
Ans: D
63. Origin of X-ray is due to the process of
(A) Ionization (B) Inner orbital transition (C) Bremsstrahlung (D) None
Ans: C
64. The abbreviation ‘FMJ’ used for bullets stands for ............…
(A) Full movement jet (B) Full metal jacket (C) Free movement jacket (D) Free mining jest
Ans: B
65. INSAS stands for
(A) Indian Small Arms System (B) Indonesia Small Arms System
(C) Infantry Small Arms System (D) Indian Semi-auto System
Ans: C
66. An ideal powder should produce ............... smoke
(A) Minimum (B) Maximum (C) Stable (D) All of the above
Ans: A
67. A firearm, which uses trombone action for loading & unloading is known as ............…
(A) Bolt Action (B) Lever Action (C) Repeaters (D) Hammer Action
Ans: C
68. Recoil is measured by?
(A) Galvanometer (B) Dynamometer (C) Densitometer (D) Micrometer
Ans: B
69. A journey of projectile ends at ............…
(A) Target (B) Firearm (C) GSR (D) Richochet
Ans: A
70. Electromagnetic waves are
(A) Longitudinal. (B) Transverse. (C) Both longitudinal and transverse. (D) None of the above.
Ans: C
71. An electromagnetic wave is radiated by a straight wire antenna that is oriented vertically. What should be the orientation of a straight wire receiving antenna? It should be placed
(A) Vertically. (B) Horizontally and in a direction parallel to the wave’s direction of motion.
(C) Horizontally and in a direction perpendicular to the wave’s direction of motion. (D) None of the above.
Ans: A
72. An electromagnetic wave is traveling to the east. At one instant at a given point its E vector points straight up. What is the direction of its B vector?
(A) North (B) Down (C) East (D) South
Ans: D
73. Which of the following correctly lists electromagnetic waves in order from longest to shortest wavelength?
(A) Gamma rays, ultraviolet, infrared, microwave (B) Microwaves, ultraviolet, visible light, gamma rays
(C) Radio waves, infrared, gamma rays, ultraviolet (D) Television, infrared, visible light, X-rays
Ans: D
74. Which of the following microscopy techniques relies on the specimen interfering with the wavelength of light to produce a high contrast image without the need for dyes or any damage to the sample?
(A) Conventional bright field light microscopy (B) Phase contrast microscopy
(C) Electron microscopy (D) Fluorescence microscopy
Ans: B
75. Match the following :
List – I List – II
(P) Glass (i) Complex mixture of diverse particles.
(Q) Soil (ii) In the chip form.
(R) Paint (iii) Two surfaces come in contact with force.
(S) Tool marks (iv) Quite brittle and easily broken.
Codes :
(A) (P) - (i), (Q) - (ii), (R) - (iii), (S) - (iv)
(B) (P) - (iv), (Q) - (i), (R) - (ii), (S) - (iii)
(C) (P) - (ii), (Q) - (iii), (R) - (iv), (S) - (i)
(D) (P) - (iii), (Q) - (iv), (R) - (i), (S) - (ii)
Ans: B
76. Mohs scale developed by German Mineralogist, Friedsich Mohs in 1822 can be used in the analysis of glass for measuring :
(A) Hardness (B) Refractive index (C) Density (D) Thickness
Ans: A
77. Foot prints on wooden floor may be collected by
(A) Electrostatic method (B) Plaster of paris (C) Sulphur (D) All of the above
Ans: A
78. The Wave Like Facture in glass Sheet is found by
(A) Impact (B) Bullet Penetration (C) Heat (D) Compression
Ans: C
79. Cheiloscopy is the study of
(A) Iris Print (B) Earprint (C) Lip print (D) Bite Mark
Ans: C
80. ............... is a super cooled liquid which has attained so high viscosity as to be considered as solid.
(A) Plastics (B) Glass (C) Acrylic fiber (D) Rayon
Ans: B
81. Rifling marks on fired bullet are of the following type :
(A) Cut marks (B) Compression marks (C) Striation marks (D) Integrated marks
Ans: C
82. Which of the following statements is most accurate regarding blood evidence?
(A) Laboratory examination alone can determine the identity of the person from which the sample was drawn.
(B) Laboratory examination can determine the presence of all illnesses.
(C) It is acceptable to lock blood evidence in trunks during warm weather.
(D) Laboratory examination can determine a person’s blood type.
Ans: A
83. ............... is any impression, cut, gouge, or abrasion made when a tool comes into contact with another object.
(A) Freehand forgery (B) Striations (C) Tool mark (D) Fracture match
Ans: B
84. A study of speech sounds within the language or different languages is termed as:
(A) Phonology (B) Phonetics (C) Sociolinguistics (D) Dialectology
Ans: A
85. Section 23 of evidence act deals with:
(A) Relevance of admission in civil cases (B) Relevance of oral evidence as to the contents of documents
(C) Relevance of oral admissions as to the contents of electronic evidence (D) None of the above
Ans: A
86. When searching for human remains, what type of search is the most beneficial and thorough?
(A) Aerial Photography (B) Metal detection (C) Line Searches (D) Ground penetration
Ans: D
87. Level 2 Details in Fingerprinting, does not Include.
(A) Dots (B) Bifurcation (C) Line Searches (D) Ridge Width
Ans: D
88. The method of ionization of a vaporized sample in a mass spectrometer by electron bombardment is called
(A) Field Ionization (B) Electron Ionization (C) Chemical Ionization (D) All the above
Ans: B
89. Hammer Marks well explained as ............…
(A) Striation Marks (B) Cut Marks (C) Compression Marks (D) None of the Above
Ans: C
90. Match The Following.
LIST-1 LIST-2
(P) Wool (i) Plant Fibre
(Q) Nylon (ii) Mineral Fibre
(R) Cotton (ii) Synthetic Fibre
(S) Asbestoss (iv) Animal Fibre
Codes :
(A) (P) - (i), (Q) - (iv), (R) - (iii), (S) - (ii)
(B) (P) - (ii), (Q) - (iv), (R) - (i), (S) - (iii)
(C) (P) - (iv), (Q) - (iii), (R) - (i), (S) - (ii)
(D) (P) - (iv), (Q) - (ii), (R) - (iii), (S) - (i)
Ans: C
91. Match the instruments with the material analysed :
LIST-1 LIST-2 Instrument Material
(P) Electron Microscope (i) Bullet
(Q) Electrophoresis (ii) Alcohol
(R) GLC (iii) Hair
(S) Comparison Microscope (iv) Blood
Codes :
(A) (P) - (iii), (Q) - (iv), (R) - (ii), (S) - (I)
(B) (P) - (i), (Q) - (ii), (R) - (iv), (S) - (iii)
(C) (P) - (ii), (Q) - (i), (R) - (iii), (S) - (iv)
(D) (P) - (iv), (Q) - (iii), (R) - (ii), (S) - (i)
Ans: D
92. X-ray diffraction can be seen in crystal grating as the lattice constant is
(A) Comparable to be wavelength to the wavelength of light (B) Greater than the wavelength of light (C) Both (A) & (B) (D) None
Ans: A
93. All electromagnetic waves travel through a vacuum at
(A) The same speed. (B) Speeds that are proportional to their frequency.
(C) Speeds that are inversely proportional to their frequency. (D) None of the above
Ans: A
94. In hair growth, the telogen phase may last upto
(A) one hundred days (B) six months (C) two years (D) six years
Ans: A
95. A laser diode normally emits
(A) Coherent light (B) Monochromatic light (C) Coherent and monochromatic light (D) Neither coherent nor monochromatic light
Ans: C
96. The ripple factor of a half-wave rectifier is ............…
(A) 2 (B) 1.21 (C) 2.5 (D) 0.48
Ans: D
97. What are the two mechanisms of breakdown in a p-n junction?
(A) Bending and folding breakdown (B) Avalanche and Zener breakdown. (C) Band banding (D) Zero bias banding
Ans: B
98. Photo diode is used for detection of
(A) visible light (B) invisible light (C) no light (D) Both (A) and (B)
Ans: D
99. Sensitivity in terms of signal, is defined as:
(A) Ability of receiver to amplify weak signal (B) Ability to reject unwanted signals
(C) Ability to convert incoming signal into Image Frequency (D) Ability to reject noise
Ans: A
100. Who first used the term nanotechnology and when?
(A) Eric Drexler, 1986 (B) Sumio Iijima, 1991 (C) Norio Taniguchi, 1974 (D) Richard Feynman, 1959
Ans: C
(A) Ziehl-Neelsen acid-fast stain (B) Endospore stain (C) Flagellar stain (D) Negative stains
Ans: D
52. X-ray is an:
(A) Electronic Magnetic Radiation (B) Elastic Wave (C) Stress wave (D) None
Ans: A
53. Which of the following wavelength fall in the range of X-ray:
(A) 0.1A (B) 1A (C) 10A (D) 100A
Ans: A
54. For the production of X-ray target material should have?
(A) High Conductivity (B) Medium Conductivity (C) Low Conductivity (D) Non-conductor
Ans: A
55. X-ray with low Penetrating power are called?
(A) Hard X-ray (B) Soft X-ray (C) Both (D) None
Ans: B
56. Frequency of K series X-ray lines than that of L series X-ray line is ............…
(A) Greater (B) Lower (C) Zero (D) None
Ans: A
57. Which of the analytical technique is more suitable for the identification purpose?
(A) MS (B) GC (C) TLC (D) Paper chromatography
Ans: A
58. The characteristic feature of any form of Chromatography is:
(A) Use of molecules that are soluble in water. (B) Use of mobile and stationary phase.
(C) Use of an inert carrier gas (D) Using Rf value to determine the compound
Ans: B
59. Which of the following is most suitable gas to use as a carrier gas in gas chromatography?
(A) Methane. (B) Helium (C) Oxygen (D) Carbon dioxide
Ans: B
60. A new youth drink contains Sugar, Salt, Alcohol and Vitamin C. A gas chromatogram could be used to determine the:
(A) Concentration of all ingredients in the drink (B) Alcohol and sugar content only.
(C) Alcohol, sugar and vitamin C content only. (D) Alcohol content only.
Ans: D
61. Which of the following is used to determine the elemental content?
(A) AAS (B) EDXRF (C) AES (D) All
Ans: D
62. Which of the following is the non-destructive technique?
(A) EDXRF (B) C-Scan (C) Microscopy technique (D) All
Ans: D
63. Origin of X-ray is due to the process of
(A) Ionization (B) Inner orbital transition (C) Bremsstrahlung (D) None
Ans: C
64. The abbreviation ‘FMJ’ used for bullets stands for ............…
(A) Full movement jet (B) Full metal jacket (C) Free movement jacket (D) Free mining jest
Ans: B
65. INSAS stands for
(A) Indian Small Arms System (B) Indonesia Small Arms System
(C) Infantry Small Arms System (D) Indian Semi-auto System
Ans: C
66. An ideal powder should produce ............... smoke
(A) Minimum (B) Maximum (C) Stable (D) All of the above
Ans: A
67. A firearm, which uses trombone action for loading & unloading is known as ............…
(A) Bolt Action (B) Lever Action (C) Repeaters (D) Hammer Action
Ans: C
68. Recoil is measured by?
(A) Galvanometer (B) Dynamometer (C) Densitometer (D) Micrometer
Ans: B
69. A journey of projectile ends at ............…
(A) Target (B) Firearm (C) GSR (D) Richochet
Ans: A
70. Electromagnetic waves are
(A) Longitudinal. (B) Transverse. (C) Both longitudinal and transverse. (D) None of the above.
Ans: C
71. An electromagnetic wave is radiated by a straight wire antenna that is oriented vertically. What should be the orientation of a straight wire receiving antenna? It should be placed
(A) Vertically. (B) Horizontally and in a direction parallel to the wave’s direction of motion.
(C) Horizontally and in a direction perpendicular to the wave’s direction of motion. (D) None of the above.
Ans: A
72. An electromagnetic wave is traveling to the east. At one instant at a given point its E vector points straight up. What is the direction of its B vector?
(A) North (B) Down (C) East (D) South
Ans: D
73. Which of the following correctly lists electromagnetic waves in order from longest to shortest wavelength?
(A) Gamma rays, ultraviolet, infrared, microwave (B) Microwaves, ultraviolet, visible light, gamma rays
(C) Radio waves, infrared, gamma rays, ultraviolet (D) Television, infrared, visible light, X-rays
Ans: D
74. Which of the following microscopy techniques relies on the specimen interfering with the wavelength of light to produce a high contrast image without the need for dyes or any damage to the sample?
(A) Conventional bright field light microscopy (B) Phase contrast microscopy
(C) Electron microscopy (D) Fluorescence microscopy
Ans: B
75. Match the following :
List – I List – II
(P) Glass (i) Complex mixture of diverse particles.
(Q) Soil (ii) In the chip form.
(R) Paint (iii) Two surfaces come in contact with force.
(S) Tool marks (iv) Quite brittle and easily broken.
Codes :
(A) (P) - (i), (Q) - (ii), (R) - (iii), (S) - (iv)
(B) (P) - (iv), (Q) - (i), (R) - (ii), (S) - (iii)
(C) (P) - (ii), (Q) - (iii), (R) - (iv), (S) - (i)
(D) (P) - (iii), (Q) - (iv), (R) - (i), (S) - (ii)
Ans: B
76. Mohs scale developed by German Mineralogist, Friedsich Mohs in 1822 can be used in the analysis of glass for measuring :
(A) Hardness (B) Refractive index (C) Density (D) Thickness
Ans: A
77. Foot prints on wooden floor may be collected by
(A) Electrostatic method (B) Plaster of paris (C) Sulphur (D) All of the above
Ans: A
78. The Wave Like Facture in glass Sheet is found by
(A) Impact (B) Bullet Penetration (C) Heat (D) Compression
Ans: C
79. Cheiloscopy is the study of
(A) Iris Print (B) Earprint (C) Lip print (D) Bite Mark
Ans: C
80. ............... is a super cooled liquid which has attained so high viscosity as to be considered as solid.
(A) Plastics (B) Glass (C) Acrylic fiber (D) Rayon
Ans: B
81. Rifling marks on fired bullet are of the following type :
(A) Cut marks (B) Compression marks (C) Striation marks (D) Integrated marks
Ans: C
82. Which of the following statements is most accurate regarding blood evidence?
(A) Laboratory examination alone can determine the identity of the person from which the sample was drawn.
(B) Laboratory examination can determine the presence of all illnesses.
(C) It is acceptable to lock blood evidence in trunks during warm weather.
(D) Laboratory examination can determine a person’s blood type.
Ans: A
83. ............... is any impression, cut, gouge, or abrasion made when a tool comes into contact with another object.
(A) Freehand forgery (B) Striations (C) Tool mark (D) Fracture match
Ans: B
84. A study of speech sounds within the language or different languages is termed as:
(A) Phonology (B) Phonetics (C) Sociolinguistics (D) Dialectology
Ans: A
85. Section 23 of evidence act deals with:
(A) Relevance of admission in civil cases (B) Relevance of oral evidence as to the contents of documents
(C) Relevance of oral admissions as to the contents of electronic evidence (D) None of the above
Ans: A
86. When searching for human remains, what type of search is the most beneficial and thorough?
(A) Aerial Photography (B) Metal detection (C) Line Searches (D) Ground penetration
Ans: D
87. Level 2 Details in Fingerprinting, does not Include.
(A) Dots (B) Bifurcation (C) Line Searches (D) Ridge Width
Ans: D
88. The method of ionization of a vaporized sample in a mass spectrometer by electron bombardment is called
(A) Field Ionization (B) Electron Ionization (C) Chemical Ionization (D) All the above
Ans: B
89. Hammer Marks well explained as ............…
(A) Striation Marks (B) Cut Marks (C) Compression Marks (D) None of the Above
Ans: C
90. Match The Following.
LIST-1 LIST-2
(P) Wool (i) Plant Fibre
(Q) Nylon (ii) Mineral Fibre
(R) Cotton (ii) Synthetic Fibre
(S) Asbestoss (iv) Animal Fibre
Codes :
(A) (P) - (i), (Q) - (iv), (R) - (iii), (S) - (ii)
(B) (P) - (ii), (Q) - (iv), (R) - (i), (S) - (iii)
(C) (P) - (iv), (Q) - (iii), (R) - (i), (S) - (ii)
(D) (P) - (iv), (Q) - (ii), (R) - (iii), (S) - (i)
Ans: C
91. Match the instruments with the material analysed :
LIST-1 LIST-2 Instrument Material
(P) Electron Microscope (i) Bullet
(Q) Electrophoresis (ii) Alcohol
(R) GLC (iii) Hair
(S) Comparison Microscope (iv) Blood
Codes :
(A) (P) - (iii), (Q) - (iv), (R) - (ii), (S) - (I)
(B) (P) - (i), (Q) - (ii), (R) - (iv), (S) - (iii)
(C) (P) - (ii), (Q) - (i), (R) - (iii), (S) - (iv)
(D) (P) - (iv), (Q) - (iii), (R) - (ii), (S) - (i)
Ans: D
92. X-ray diffraction can be seen in crystal grating as the lattice constant is
(A) Comparable to be wavelength to the wavelength of light (B) Greater than the wavelength of light (C) Both (A) & (B) (D) None
Ans: A
93. All electromagnetic waves travel through a vacuum at
(A) The same speed. (B) Speeds that are proportional to their frequency.
(C) Speeds that are inversely proportional to their frequency. (D) None of the above
Ans: A
94. In hair growth, the telogen phase may last upto
(A) one hundred days (B) six months (C) two years (D) six years
Ans: A
95. A laser diode normally emits
(A) Coherent light (B) Monochromatic light (C) Coherent and monochromatic light (D) Neither coherent nor monochromatic light
Ans: C
96. The ripple factor of a half-wave rectifier is ............…
(A) 2 (B) 1.21 (C) 2.5 (D) 0.48
Ans: D
97. What are the two mechanisms of breakdown in a p-n junction?
(A) Bending and folding breakdown (B) Avalanche and Zener breakdown. (C) Band banding (D) Zero bias banding
Ans: B
98. Photo diode is used for detection of
(A) visible light (B) invisible light (C) no light (D) Both (A) and (B)
Ans: D
99. Sensitivity in terms of signal, is defined as:
(A) Ability of receiver to amplify weak signal (B) Ability to reject unwanted signals
(C) Ability to convert incoming signal into Image Frequency (D) Ability to reject noise
Ans: A
100. Who first used the term nanotechnology and when?
(A) Eric Drexler, 1986 (B) Sumio Iijima, 1991 (C) Norio Taniguchi, 1974 (D) Richard Feynman, 1959
Ans: C