Science – Kolkata Police SI Previous Year Question Paper
Contents
Science – Kolkata Police SI Previous Year Question Paper
Kolkata Police SI Question Paper – 2024
8. Nephridium is the excretory organ of
(A) Rat
(B) Earthworm
(C) Planaria
(D) Cockroach
10. Locomotion of Euglena is done by
(A) Fin
(B) Cilia
(C) Pseudopodia
(D) Flagella
17. Which enzyme converts protein into peptone?
(A) Pepsin
(B) Trypsin
(C) Erypsin
(D) Renin
21. In respect of which of the following, when converted into solid from liquid, its volume does not increase?
(A) Ice
(B) Antimony
(C) Aluminium
(D) Bismuth
24. In standard temperature and pressure which of the following is not an amorphous?
(A) Wood
(B) Chalk
(C) Coal Tar
(D) Common Salt
32. Which of the following is not an ore of Aluminium?
(A) Bauxite
(B) Feldspar
(C) Dolomite
(D) Gibbsite
37. Mirage is an example of which of the following?
(A) Reflection
(B) Total internal reflection
(C) Spectrum
(D) Refraction
46. Hertz is unit of
(A) Energy
(B) Density
(C) Wavelength
(D) Frequency
48. How many sex chromosomes are there in every human cell?
(A) 2
(B) 46
(C) 23 pair
(D) 4
52. Which of the following smells like rotten fish?
(A) Acetylene Gas
(B) Ozone
(C) Chlorine
(D) Phosphine
57. Name the acid present in the sting of an ant.
(A) Formic Acid
(B) Tartaric Acid
(C) Hydrobromic Acid
(D) Muriatic Acid
66. While lifting anything with the help of the hand, the hand performs as which class of Lever?
(A) 1st
(B) 3rd
(C) 4th
(D) 2nd
68. Which portion of human brain maintains the body balance?
(A) Thalamus
(B) Cerebellum
(C) Medulla Oblongata
(D) Mid Brain
72. In human body which hormone is secreted from α (alpha) cell of pancreas?
(A) Oestrogen
(B) Insulin
(C) Glucagon
(D) Progesterone
78. Which of the following scientists explained the structure of atom with the help of Quantum Theory?
(A) Albert Einstein
(B) Niels Bohr
(C) Oppenheimer
(D) Rutherford
81. Three of the following four are alike in a certain way and so form a group. Which is the one that does not belong to that group?
(A) Mica
(B) Iron
(C) Chlorine
(D) Zinc
85. Brass is an alloy of which metals?
(A) Copper, Nickel & Zinc
(B) Nickel & Zinc
(C) Copper & Nickel
(D) Copper & Zinc
93. Which hormone is synthesized in the ripened seed of a plant?
(A) Auxin
(B) Cytokinin
(C) Auxitocin
(D) Gibberellin
96. Which of the following acid is regulated as Aqua Fortis?
(A) Sulphuric Acid
(B) Hydrochloric Acid
(C) Acetic Acid
(D) Nitric Acid
98. Which Scientist invented the law of use and disuse of organs?
(A) Lamarck
(B) Mendel
(C) Weismann
(D) Darwin
Kolkata Police SI Question Paper – 2022
- Which of the following is not an example of Living Fossil?
(A) Sea-urchins
(B) Limulus
(C) Sphenodon
(D) Coelacanth
- Which of the following is not an example of non-flowering plants?
(A) Pinus
(B) Algae
(C) Spirogyra
(D) Agaricus
- What is the name of the sulphur naturally found in nature?
(A) Gypsum
(B) Cinnabar
(C) Brickstone
(D) Brimstone
- What is the name of the outermost membrane of Axon?
(A) Synapse
(B) Axoplasm
(C) Dendrite
(D) Neurolemma
- Rickets disease is caused due to deficiency of :
(A) Vitamin D
(B) Vitamin B
(C) Vitamin A
(D) Vitamin C
- Which one of the following is an example of chemical change?
(A) Preparation of ice cubes from water
(B) Magnetization of soft iron
(C) Burning of paper
(D) Dissolution of cane sugar in water
- Which hormone controls the tropic movement in plants?
(A) Heteroauxin
(B) Gibberellin
(C) Cytokinin
(D) Auxin
- What is the unit of electromotive force of a cell?
(A) Dyne
(B) Volt
(C) Ampere
(D) Joule
- Which scientist among the names given below is associated with the discovery of the radioactive element ‘Radium‘?
(A) Michael Faraday
(B) Albert Einstein
(C) Issac Newton
(D) Marie Curie
- Who is the inventor of ‘Barometer‘?
(A) Amidio Avogadro
(B) Torricelli
(C) Priestley
(D) Alexander Graham Bell
- Full form of RNA is :
(A) Rare Nucleic Acid
(B) Remote Nuclear Activity
(C) Ribonucleic Acid
(D) Random Nuclear Acid