UGC NTA NET/JRF Exam, Forensic Science, June-2021

Total Questions: 100

81. Arrange the HPLC detectors according to their increasing sensitivity:

(a) U.V. Detector
(b) P.D.A. Detector
(c) Electrochemical (EC) Detector
(d) R.I. Detector
Choose the correct answer from the options given below:

Correct Answer: B. (d), (b), (a), (c)

82. The correct sequence for restoration of engine number of cars using etching method is

(a) Cleaning of surface where numbers have to be stored
(b) Application of Fry's reagent
(c) Application of 15% nitric acid
(d) Visualization and photography of number
Choose the correct answer from the options given below:

Correct Answer: A. (a), (b), (c), (d)

83. The correct sequence of explosives with respect to its density is

(a) HMX
(b) PETN
(c) RDX
(d) TNT
(e) Torpex
Choose the correct answer from the options given below:

Correct Answer: B. (a) > (e) > (b) > (c) > (d)

84. In a finger print biometric system, the correct sequence of processes for matching of two finger prints is

(a) Alignment
(b) Pairing
(c) Score Generation
(d) Fingerprint matching
(e) Performance evaluation
Choose the correct answer from the options given below:

Correct Answer: A. (a), (b), (c), (d), (e)

85. The correct sequence of processes in enrollment phase of iris biometric recognition is:

(a) Iris image acquisition
(b) Image enhancement
(c) Localization and normalization
(d) Feature extraction
(e) Enrollment in database
Choose the correct answer from the options given below:

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

86. Given below are two statements:

Statement I: In a monochromator two type of dispersing elements are found namely reflection grating and prism.

Statement II : For dispersing by prism, refractions at two faces results in angular dispersion.

In the light of the above statements, choose the most appropriate answer from the options given below

Correct Answer: A. Both Statement (I) and Statement (II) are correct

87. Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The head of spermatozoa contain a nucleus with densely packed chromosomes and at the tip of the head is the acrasomal cap, a membranous compartment.

Reason (R) : Acrasomal cap contain enzymes essential for fertilization.

In the light of the above statements, choose the correct answer from the options given below:

Correct Answer: A. Both (A) and (R) are true and (R) is the correct explanation

88. Given below are two statements:

Statement I: A history of chronic heavy drinking is associated with the damage of most of the body's organ.

Statement II: The two most prominent organ which gets damaged are kidney and stomach.

In the light of the above statements, choose the correct answer from the options given below:

Correct Answer: C. Statement (I) is true, but Statement (II) is false

89. Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): The rate of loss of velocities, that is, retardation is fairly high in case of shotgun projectiles.

Reason (R): The loss is due to the air resistance, poor form-factor and size of a pellet.

In the light of the above statements, choose the correct answer from the options given below:

Correct Answer: A. Both (A) and (R) are true and (R) is the correct explanation of (A)

90. Given below are two statements:

Statement I: In the writing of a single signature, one writer may actually make fifty distinct movement impulses, while another writer in producing the same letters with same number of pen-lifts may make only twenty five distinct motions.

Statement II: This difference marks a distinction in two writings more fundamental than many divergencies in form.

In the light of the above statements, choose the correct answer from the options given below:

Correct Answer: A. Both Statement (I) and Statement II are true