Forensic Science Important Question

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Important Question Papers on Forensic Science

1. The term refers to the destruction or alteration of evidence or the failure to preserve property as evidence in pending or potential litigation :
(A) Plundering
(B) Destruction
(C) Spoilation
(D) Despoiling

2. The process of separation based on the differential rate of migration of charged species in a buffer solution across which an electric field is applied is known as :
(A) Ion chromatography
(B) Paper chromatography
(C) Micellar liquid chromatography
(D) Electrophoresis

3. Which of the following is not the advantage of reciprocating pump used in UHPLC ?
(A) High output pressure
(B) Small solvent capacities
(C) Adaptability to gradient elution
(D) Small internal volume

4. Which of the following is caused by collisions of the absorbing atoms with other molecules or atoms present in flames ?
(A) Lorentz broadening
(B) Resonance lines
(C) Walsh phenomena
(D) Doppler phenomena

5. In elliptical polarized light :
(A) The magnitude of light vector remains same but orientations change
(B) The magnitude and orientation both vary continuously
(C) The magnitude of light vector changes but orientation remains same
(D) Neither magnitude nor orientation changes

6. Assertion (A) : In most of commercial spectrophotometer lamp as source is preferred over laser as source.
Reason (R) : Laser as source is used only while using very small sample amount or volume as in case of coupling with separation technique.
(A) (A) is correct but (R) is wrong
(B) (A) is wrong but (R) is correct
(C) Both (A) and (R) are correct but (R) is not the correct explanation to (A)
(D) Both (A) and (R) are wrong

7. Which of the following statements is not correct regarding radionuclide analytical methods ?
(A) Quality and quantity of signal producing decay are independent of influences like temperature, pressure, chemical environment of the nucleus
(B) Synthesis of labelled compound is easy
(C) Pre-determination of counting precision
(D) The sample material cannot returned to normal use after analysis

8. International Association of Blood stain Pattern Analysis (IABPA) was formed in the year :
(A) 1972
(B) 1983
(C) 1985
(D) 1989

9. The distance between the first formant and the second formant is the better predictor of :
(A) Roundness of vowel
(B) Height of vowel
(C) Opening of vowel
(D) Backness of vowel

10. The major industry identifier (MII) for master card is :
(A) 3
(B) 4
(C) 5
(D) 6

11. A pronounced alveolar and facial prognathism is an important trait in skulls of :
(A) Mongoloids
(B) Caucasoids
(C) Negroids
(D) Negroids as well as caucasoids

12. Which of the following is a database for outsole pattern of footwears ?
(A) AFIS
(B) CODIS
(C) SICAR
(D) CHEMPLAST

13. Pelvic cavity in human female is :
(A) Longer and more conical
(B) Shorter, more cylindrical and more spacious
(C) Shorter, conical and less spacious
(D) Longer, less cylindrical and less spacious

14. Life cycle of Musca domestica in winter season is :
(A) 5 days
(B) 10 days
(C) 15 days
(D) 22 days

15. Which permanent tooth among humans emerges first ?
(A) Maxillary central incisor
(B) First molar
(C) Maxillary canine
(D) Mandibular lateral incisor

16. Which of the following hair type/s is/are found in human foetus ?
(A) Terminal Hair
(B) Vellus Hair
(C) Lenugo Hair
(D) Terminal and Vellus Hair

17. Which of the following is the most suitable casting material for preserving footwear print impression ?
(A) Plasticine
(B) Paraffin Wax
(C) Plaster of Paris
(D) Zelgan Powder

18. The ends of bones which ossify from secondary centres of ossification are called :
(A) Epiphysis
(B) Diaphysis
(C) Metaphysis
(D) Periosteum

19. Vomit of bluish-green color is due to acute poisoning of which of the following ?
(A) Barium carbonate
(B) Nickel sulphide
(C) Copper sulphate
(D) Arsenic trioxide

20. Inter-pupillary distance (IPD) for a lower resolution face image is considered to be less than :
(A) 40
(B) 30
(C) 60
(D) 50

21. Daugmans rubber sheet model is mostly used for :
(A) Iris encoding
(B) Iris normalization
(C) Iris matching
(D) Iris segmentation

22. Herzberg’s stain is related to the examination of which of the following ?
(A) Saliva
(B) Fibre
(C) Hair
(D) Vomit

23. A computerized database that allows an analyst to obtain information relative to an individual’s DNA profile is :
(A) PCR
(B) CODIS
(C) AFIS
(D) PDQ

24. Among the following which group of fibres are regenerated from naturally occurring proteins :
(A) Azlon group
(B) Rayon
(C) Sericin
(D) Synthetic

25. The glass that is made stronger than the ordinary glass by introducing stress through rapid heating and cooling of glass surface is known as :
(A) Laminated glass
(B) Tempered glass
(C) Plasticized glass
(D) Insulated glass

26. IgG and IgM activate compliment, IgM is better activator the IgG because of :
(A) Lower molecular weight
(B) Lower concentration in blood
(C) Pentavalent structure
(D) Lack of secretory type

27. Phthalocyanine is an example of :
(A) Solvent
(B) Lacquer
(C) Binder
(D) Pigment

28. Half life of acid phsophatase in semen stored at 37°C is :
(A) 12 months
(B) 6 months
(C) 24 months
(D) 6 weeks

29. Dacron is the trade name of :
(A) Polyethylene tetraphthalate (PET)
(B) Dimethylene tetraphthalate
(C) Nylon 6, 6
(D) Nylon 6

30. The molecular weight of prostate specific antigen is :
(A) 25 kDa
(B) 30 kDa
(C) 35 kDa
(D) 40 kDa

31. Isoamyl alcohol is added to phenolchloroform mixture in organic extraction of DNA to :
(A) Increase concentration of DNA
(B) To enhance quality of DNA
(C) To reduce foaming
(D) To extract proteins from aqueous solution

32. The control region in mitochondrial genome is known as :
(A) A loop
(B) H loop
(C) L loop
(D) D loop

33. Which of the following enzymes gives fluorescent bands ?
(A) PGM
(B) ESD
(C) GLO
(D) EAP

34. Multisystem of electrophoresis to analyse isozymes was developed by :
(A) Culliford
(B) Wraxall and Stolorow
(C) Rothwell
(D) Brinkmann

35. Club shape root in human hair is present in which of the following growth phase ?
(A) Anagen
(B) Catagen
(C) Telogen
(D) Both Anagen and Catagen

36. Which of the following techniques is preferred to determine the ABO blood group from saliva fluid ?
(A) Absorption Inhibition Technique
(B) Absorption Elution Technique
(C) Latter Technique
(D) Mixed Agglutination

37. Secretion of prostate glands in male reproductive organs is :
(A) Alkaline in natural
(B) Neutral in nature
(C) Variable in nature
(D) Acidic in nature

38. After removal of which of the following clear portion of the blood or plasma is called serum ?
(A) Gamma globulin
(B) Agglutinogen
(C) Agglutinin
(D) Fibrinogen

39. Which of the following ASTM standard covers the determination of portland cement content of a sample of hardened hydrauliccement concrete ?
(A) ASTM C 1084-10
(B) ASTM C 1085-11
(C) ASTM C 1086-07
(D) ASTM C 1089-03

40. In seminal stains examination, DNA is present in :
(A) Sperms
(B) Seminal fluid
(C) Tail
(D) Prostate-specific antigen

41. FISH in reference to handwriting examination is an acronym of :
(A) Forensic Information System for Handwriting
(B) Forensic Identification of Signature and Handwriting
(C) Forensic Identification System for Handwriting
(D) Forensic Identification System for Handwriting and Signature

42. Half choke has the degree of constriction in inches :
(A) 40/1000
(B) 30/1000
(C) 20/1000
(D) 15/1000

43. Which of the following can be tailor made to suit the ballistics of a particular firearm ?
(A) Dense powder
(B) Bulk powder
(C) Progressive powder
(D) Black powder

44. Which of the following is the unit for Heat Release Rate (HRR) ?
(A) Kilowatt
(B) Kilo joule
(C) Kilowatt per kelvin
(D) Kilo joule per kelvin

45. Hang fire is :
(A) due to higher loading density
(B) due to lower loading density
(C) due to improper loading density
(D) not affected due to loading density

46. Ballistics coefficients is directly proportional to :
(A) Weight of bullet
(B) Diameter of bullet
(C) Form factor
(D) Type of the bullet

47. The Greenhill formula of rate of twist is based on consideration that specific gravity of bullet is generally :
(A) 7.9
(B) 8.9
(C) 9.9
(D) 10.9

48. Which of the following refers to shattering power of an explosive ?
(A) Flame speed
(B) Deflagration
(C) Detonation
(D) Brisonce

49. Pressure develop in 0.303 rifle is :
(A) 3400 kg per cm2
(B) 500 kg per cm2
(C) 1000 kg per cm2
(D) 1500 kg per cm2

50. Lead in discharge residue is best identified with :
(A) X-ray radiography
(B) Dermal nitrate test
(C) IR photometry
(D) UV ray analysis