Physical Evidences-Paint [NTA-NET (UGC-NET) Forensic Science (82)]: Questions 1 - 6 of 11

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Question 1

Appeared in Year: 2013

Question MCQ▾

In paint examination, pyrolysis gas chromatography is useful for characterizing: (June)

Choices

Choice (4)Response

a.

Pigment

b.

Vehicle

c.

Binder

d.

Metal iron

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Question 2

Appeared in Year: 2005

Question MCQ▾

In case of examination of paints, Pyrolysis Gas Chromatography is useful for characterization of: (June)

Choices

Choice (4)Response

a.

Pigment

b.

Lacquer

c.

Binder

d.

Question does not provide sufficient data or is vague

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Question 3

Appeared in Year: 2012

Question MCQ▾

Preservation of footprint on snow can be done by: (December)

Choices

Choice (4)Response

a.

Sulphur casting

b.

Wax casting

c.

Plaster of paris cast

d.

Tracing

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Question 4

Appeared in Year: 2017

Question MCQ▾

In case of examination of paints, pyrolysis Gas Chromatography is useful for the characterization of: (November)

Choices

Choice (4)Response

a.

Binder

b.

Solvent

c.

Lacquer

d.

Pigment

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Question 5

Appeared in Year: 2018

Question MCQ▾

Which of the following instrumental techniques can be used for mapping of elements across the cross-section of multi-layer paint? (July)

Choices

Choice (4)Response

a.

AAS

b.

HPTLC

c.

SEM-EDS

d.

FTIR spectroscopy

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Question 6

Appeared in Year: 2018

Question Assertion-Reason▾

Assertion(Ꭺ)

Solvent and micro chemical tests have been used to discriminate between paint layers that are otherwise visually similar. (July)

Reason(Ꭱ)

Different paint layers have different chemical composition and will, therefore react differently with oxidizing, dehydrating and reducing agents.

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

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