Previous Year Paper Questions(NET/JRF-FORENSIC SCIENCE) Part-1

Previous Year Paper Questions(NET/JRF-FORENSIC SCIENCE) 

1.       A fatty substance deposited on the walls of cork cell is-​

1. Stamen​
2.  suberin​
3.  pectin​
4.  lignin

ANSWER-2

EXPLANATION

Cork cell​

• Mature cork cells are plant cells that form the protective water-resistant tissue in the outer covering of stems or trunks. ​
• Cork cells are genetically programmed not to divide, but instead to remain as they are, and are considered dead cells. ​
• Each cell wall is comprised of a waxy substance known as suberin, which is highly impermeable to gases and water. ​
• Depending upon the species of woody plant, the cork cell may be filled with air or may contain traces of lignin, tannins, or fatty acids. ​
• Pore-like structures allow gases to be exchanged between the plant stem and the outside environment. ​
• The layer of dead cells formed by the cork cambium provides internal plant tissue, including the vascular system, with extra insulation and protection.​​

2.       Age of criminal responsibility in india is-​

1. 5 years​
2.  7 years​
3.  12 years​
4.  18 years​

ANSWER-2

EXPLANATION

Criminal law​

Nothing is an offence which is done by a child under indian penal code the age of seven years. The age of criminal responsibility is raised to 12 years if the child is found to have not attained the ability of understanding the nature and consequences of his act.

3.       Ninhydrin is a method used for latent finger prints ‘visualization’, which was first synthesised by siegfried ruhemann in which year? ​

1. 1980​
2. 1970​
3. 1910​
4. 1930​

ANSWER-3

4.       Root calcification of 1st permanent molar begins at​

1. Birth​
2.  1 year​
3.  2 years​
4.  3 years​

ANSWER-1

EXPLANATION

• Primary teeth take approx. 10 months for completion of calcification. ​
• The primary teeth begin to form in utero at about six weeks. Hard tissue formation occurs in all primary teeth by the 18th week in utero.​
• The permanent teeth begin to develop at approximately four months of age in utero. Maxillary and mandibular first molars begin to calcify at birth. They are the first to begin calcification. The mandibular third molars are generally the last teeth to begin calcifying. This happens at about 8-10 years of age.​

5.       If a person is improperly admitted or detained in a psychiatric hospital, punishment is​

1. Imprisonment of 1 year or rs. 1000 fine or both​
2.  Imprisonment of 2 years or rs. 1000 fine or both​
3.  Fine of rs. 5,000​
4.  Imprisonment of 24 hours​

ANSWER-2

6.       What is the initial action involved in the explosion of he-36 grenade ?​

1. Pull​
2. Pressure​
3. Pressure release​
4. Tension release​

ANSWER-1

7.       In connection with a crime scene sketch, which of the following is correct ?​

1. Distances can be measured by steps.​
2. Small distances, for example, distance between a fire arm and victim, can be guessed, whereas others can be measured by a measuring tape.​
3. Each distance should be accurately measured, accurately converted according to scale chosen and then marked on sketch.​
4. Each distance should be accurately measured, may be approximately converted to scale and then marked in sketch.​

ANSWER-3

8.       For decipherment of indented writing which of the following methods can be used ?​

1. Esda​
2.  oblique light​
3.  transmitted light​
4.  both esda and oblique light​

ANSWER-4

9.       At ph 6 glycine behaves as-​

1. Anion​
2.  cation​
3.  zwitterion​
4.  inorganic ion​

ANSWER-3

10.   In the manufacture of glass, sodium carbonate is added to sand to-​

1. Reduce its melting point​
2.  prevent glass from dissolving in water​
3.  give it greater durability​
4.  reduce viscosity​

ANSWER-1