UGC NTA NET/JRF Exam, Forensic Science, June-2020

Total Questions: 100

61. Which of the following are correct regarding the addition of Internal Standard (IS) during the extraction of drug from biomatrix?

(a) IS should mimic the physicochemical properties of the drug.
(b) IS should not compensate for any loss of drug.
(c) Stable - isotope labelled analogues of the drug are the best choice as IS.
(d) IS would make the method less sensitive.
Choose the correct answer from the options given below:

A. (a) and (b) only
B. (b) and (d) only
C. (a) and (c) only
D. (c) and (d) only

Correct Answer: C. (a) and (c) only

62. Which of the following are advantages of solid-phase extraction over liquid extraction?

(a) Small sample size
(b) High solvent consumption
(c) Emulsion formation
(d) High extraction efficiency
Choose the correct answer from the options given below:

A. (b) and (c) only
B. (a) and (b) only
C. (a) and (d) only
D. (c) and (d) only

Correct Answer: C. (a) and (d) only

63. A fired cartridge case can be linked to the suspect firearm on the basis of

(a) Firing - Pin marks
(b) Rifling marks
(c) Breech - face marks
(d) The direction of twist of rifling
Choose the correct answer from the options given below:

A. (a), (b) and (c) only
B. (a) and (b) only
C. (a), (c) and (d) only
D. (a) and (c) only

Correct Answer: D. (a) and (c) only

64. While making a test cast with a seized tool, a forensic examiner will try to replicate it using casting material such as

(a) Dental plaster
(b) Plasticine
(c) Moulage
(d) Mikrosil
(e) Permlastic
Choose the correct answer from the options given below:

A. (b) and (d) only
B. (e), (d) and (b) only
C. (a), (b), (c) and (d) only
D. (a), (b), (c), (d) and (e) only

Correct Answer: D. (a), (b), (c), (d) and (e) only

65. Match List-I with List-II:

List-I	List-II
(a) Bestiality	I. Anal Intercourse
(b) Incest	II. Intercourse with a dead body
(c) Sodomy	III. Intercourse with lower animal
(d) Necrophilia	IV. Intercourse with blood relatives

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
A.	II	III	IV	I
B.	I	II	IV	III
C.	III	IV	II	I
D.	III	IV	I	II

A.
B.
C.
D.

Correct Answer: D.

66. Match List-I with List-II:

List-I	List-II
(a) Increased ISO number on the digital camera	I. Tagged image file format
(b) Lossy compression file format	II. Digital camera sensor becomes more light-sensitive
(c) Most high-end DSLR cameras can save two file-formats of image	III. JPEG
(d) TIFF	IV. JPEG and RAW

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
A.	III	II	I	IV
B.	II	III	I	IV
C.	IV	II	III	I
D.	II	III	IV	I

A.
B.
C.
D.

Correct Answer: D.

67. Match List-I with List-II

List-I (Test/Reagent)	List-II (Indicator/Result)
(a) GSR on the cast treated with diphenylamine dissolved in sulphuric acid	I. Orange ring indicates the presence of antimony
(b) GSR on test cloth treated with 1 drop of triphenyl methylarsonium iodide alcoholic solution (10%)	II. Pink-coloured specks indicate nitrite particles
(c) GSR on filter paper, moistened with acetic acid, is sprayed with a solution of 2 naphthylamine sulphanilic acid and nitric acid	III. Pinkish violet (scarlet) colour indicates the presence of lead
(d) GSR on cloth piece moistened with 1% HCl treated with sodium rhodizonate solution	IV. Blue colour spots indicate the presence of nitrates

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
A.	I	IV	III	II
B.	II	III	IV	I
C.	III	II	I	IV
D.	IV	I	II	III

A.
B.
C.
D.

Correct Answer: D.

68. Match List-I with List-II

List-I (Plant Poison)	List-II (Active Principle)
(a) Atropa belladonna	I. Bhilawanol
(b) Strychnos nux-vomica	II. Nerlifolin
(c) Semecarpus anacardium	III. Hyoscyamine
(d) Thevetia peruviana	IV. Brucine

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
A.	III	IV	I	II
B.	IV	I	II	III
C.	I	III	II	IV
D.	II	IV	III	I

A.
B.
C.
D.

Correct Answer: A.

69. Match List-I with List-II

List-I	List-II
(a) Escapement	I. The cylinder that serves as the backing for the paper and absorbs the blow from the typeface
(b) Type-Ball	II. Typewriters that print 10 characters to the inch
(c) Platen	III. A device containing all the typefaces of some single element typewriter and which by rotation and tilting, prints the type characters
(d) PCA machines	IV. The spacing along the line of typewriting, that is, the basic letter spacing

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
A.	I	IV	II	III
B.	II	III	V	I
C.	IV	I	III	V
D.	IV	III	I	II

A.
B.
C.
D.

Correct Answer: D.

70. Match List-I with List-II

List-I (Assay)	List-II (Description/Result)
(a) Phenolphthalin assay	I. When oxidized and catalyzed by heme, it emits an intense yellowish-green light
(b) Benzidine assay	II. It is catalyzed by heme with hydrogen peroxide as the oxidant
(c) Fluorescein assay	III. These are heme derivatives in which ferrous iron of the heme forms two bonds with nitrogenous bases
(d) Hemochromagen crystal assay	IV. It is catalysed by heme to produce blue to dark blue colour

Choose the correct answer from the options given below:

	(a)	(b)	(c)	(d)
A.	II	III	I	IV
B.	I	III	IV	II
C.	II	IV	I	III
D.	IV	I	II	III

A.
B.
C.
D.

Correct Answer: C.

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