Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'Scientific Officer - Chemical Examiners Laboratory' And exam conducted in the year 2021. And Question paper code was '040/2021'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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Statement -1: One of the primary technologies used to detect deception with
brain-based measures is Event-Related Potentials (ERPs).
Statement - Il: ERPs are derived from the Electroencephalogram (EEG).
A) Statement - | is true and Statement - II is false
8) Statement - | is false and Statement - || is true
C) Both Statement - | and Statement - || are false
0) Both Statement - | and Statement - || are true
A three-barrelled long firearm with a combination of smooth and rifled barrels is better
known as
A) Vierling B) Drilling
C) Machine gun D) Sub-machine gun
The most common calibre of tear-gas ammunition encountered is
A) 6mm B) 8mm ©) 9mm 0) 12mm
Velocity of recoil of a gun weighing 3 kilograms firing a 100 gram bullet at
300 metre/second is
A) 1 metre/second B) 3 metre/second
C) 6 metre/second D) 9 metre/second
Which of the following ASTM standards are for separation of ignitable liquid residue
from fire debris ?
1. ASTM E1386-00
2. ASTM E1412-00
3. ASTM E1413-00
4. ASTM E2388-00
A) 1, 2 810 4 only B) 2, 3 and 4 only
©) 1, 2 810 3 only 0) 1, 3 and 4 only
The common shapes of crystalline pigments are
1. Spherical
2. Cubic
3. Rectangular
4. Needle-shaped
A) 1, 2 and 3 only 8) 1, 2and 4 only
©) 1, 3 and 4 only D) 2, 3 and 4 only
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