Science – WBPSC Food SI Previous Year Question Paper

Science – WBPSC Food SI Previous Year Question Paper

Science - WBPSC Food SI Previous Year Question Paper

Food SI Question Paper – 2019

12. Consider the following statements:

(I) 2G spectrum uses bandwidth of 30-200 KHz.

(II) 3G spectrum uses bandwidth of 15-20 MHz.

(III) 4G spectrum uses bandwidth of at least 40 MHz.

Which of the statements given above is/are correct?

(A) All of these

(B) (I) and (II)

(C) (II) and (III)

(D) Only (III)


14. The largest flower in the world is

(A) Lotus

(B) Rafflesia

(C) Giant Cactus

(D) None of the above


15. Which of the following is a popular programming language for developing multimedia web pages?


(B) Java


(D) Assembler


17. The chemically inactive gas present in the atmosphere is

(A) Nitrogen

(B) Argon

(C) Water vapour

(D) Oxygen


20. Which of the following is responsible for the energy released by Sun?

(A) Fission

(B) Fusion

(C) Chemical section

(D) Gravitational collapse


21. Which of the following is not a source of renewable energy?

(A) Hydroelectricity

(B) Solar energy

(C) Fuel cell

(D) Wind energy


22. Solar eclipse occurs when

(A) Earth comes between Sun and Moon

(B) Moon is at right angle to the Sun

(C) Moon comes between Sun and Earth

(D) Sun comes between Moon and Earth


26. The vitamin which is generally excreted by humans in urine is

(A) Vitamin A

(B) Vitamin D

(C) Vitamin C

(D) Vitamin A and D


27. Which falls down fastest in vacuum—a feather, a wooden ball or a steel ball?

(A) a wooden ball

(B) a feather

(C) a steel ball

(D) All of them with same speed


30. Calcium content is maximum in

(A) Bajra

(B) Maize

(C) Sorghum

(D) Wheat


31. Dialysis is used for people with defective kidneys. It involves the process of

(A) Adsorption

(B) Osmosis

(C) Electrophoresis

(D) Diffusion


32. Which Scientist wrote a book called “A Brief History of Time”?

(A) Stephen Hawking

(B) Edward Jenner

(C) Meghnath Saha

(D) Pasteur


36. Shanti Swarup Bhatnagar Award is associated with

(A) Sports

(B) Science and Technology

(C) Agriculture

(D) Film


39. Which of the following pairs belongs to the category of cold-blooded animals?

(A) Birds and Monkeys

(B) Snakes and Birds

(C) Frogs and Snakes

(D) Rats and Lizards


42. Troposphere is the hottest part of the atmosphere because

(A) it is closest to the Sun

(B) there are charged particle in it

(C) it is heated by Earth’s surface

(D) heat is generated in it


49. The most malleable metal is

(A) Silver

(B) Gold

(C) Aluminium

(D) Sodium




Food SI Question Paper – 2014

51. The nonmetal that conducts heat and current

(A) Graphite

(B) Boron

(C) Silicon

(D) Phosphorus


52. The fourth state of matter

(A) Plasma

(B) Solid

(C) Viscous

(D) Super cooled


53. Pressure cooker cooks rice faster because

(A) It always lets the steam escape

(B) High pressure crushes the hard covering of rice grains

(C) It does not let the heat energy escape easily

(D) High pressure raises the boiling point of water


54. Which of the following foods is the best source of Protein?

(A) Butter

(B) Fish

(C) Lettuce

(D) Milk


55. DRDO stands for

(A) Department of Research and Development Organisations

(B) Dental Research and Developmental Organisation

(C) Documentary Reforms and Deployment Organisation

(D) Defence Research and Development Organisation


60. The gas present in the stratosphere which filters out some of the sun’s ultraviolet light and

provides an effective shield against radiation damage to living things is

(A) Helium

(B) Ozone

(C) Oxygen

(D) Methane


65. A body moving uniformly along a circular path has-

(A) Constant velocity

(B) Constant speed

(C) Variable speed

(D) Same direction of motion


71. Ecology is the study of interrelations among-

(A) Soil and water

(B) Man and environment

(C) Organisms and environment

(D) Members of a family


72. Ornithology is the study of

(A) Bones

(B) Birds

(C) Smells

(D) None of the above


73. Light energy is converted into chemical energy in

(A) Electrolysis

(B) Photosynthesis

(C) Respiration

(D) Photoelectric effect


78. If the mass and velocity of an object both are doubled, its kinetic energy becomes

(A) 4 times

(B) 8 times

(C) 12 times

(D) 16 times


79. Depletion of ozone layer is mainly caused by

(A) Chlorofluorocarbon (CFC)

(B) Oxygen

(C) Nitrogen

(D) Argon


82. The pale yellowish colour of the urine in a normal person is due to the presence of pigment-

(A) Bilirubin

(B) Biliverdin

(C) Lecithin

(D) Urochrome


83. Malfunctioning of which of the following organs causes jaundice?

(A) Stomach

(B) Pancreas

(C) Liver

(D) Kidney

88. Light year is related to

(A) Energy

(B) Speed

(C) Distance

(D) Intensity


93. Who invented Electric Generator?

(A) Sir Alexander Graham Bell

(B) Michael Faraday

(C) Alfred B Nobel

(D) Thomas Alva Edison


95. Smoke is a

(A) Solution of liquid in gas

(B) Solution of solid in gas

(C) Solution of gas in gas

(D) Solution of solid in liquid


97. If we add extra solvent to a solution, it becomes

(A) Super-saturated

(B) Saturated

(C) Non-saturated

(D) Colloidal solution


101. When heat is given to solid, its temperature

(A) Increases

(B) Decreases

(C) Either increases or remains same

(D) Remains same


102. Essential oils are purified by

(A) Fractional distillation

(B) Steam distillation

(C) Sublimation

(D) Simple distillation


103. The major constituent of Air is

(A) Nitrogen

(B) Carbon dioxide

(C) Oxygen

(D) Hydrogen


116. The main active constituent of tea and coffee is

(A) Nicotine

(B) Chlorophyll

(C) Caffeine

(D) Aspirin


117. To get three images of an object one should have to place two plane mirrors at an angle of

(A) 120°

(B) 30°

(C) 90°

(D) 60°


119. Atmosphere contains dust particles, salt grains, pollens grains, smoke etc. which are

collectively known as

(A) Water Vapour

(B) Ozone

(C) Aerosols



134. Potato is a modified form (outgrowth) of

(A) Stem

(B) Root

(C) Leaf

(D) Fruit


137. The mass of 1 litre of water at 4°C is

(A) 1 gm

(B) 1 mg

(C) 1 kg

(D) 1 quintal


138. Escape velocity of a rocket fired from the earth towards the moon is a velocity to get rid of


(A) Earth’s gravitational pull

(B) Moon’s gravitational pull

(C) Centripetal force due to the earth’s rotation

(D) Pressure of the atmosphere


145. Of the different blood groups A, B, AB and O which one can be given to a person whose

blood group is A?

(A) Group A only

(B) Group B only

(C) Group A and O

(D) Group A and B




Food SI Question Paper – 2006

37. Which chamber of the human heart receives oxygen-rich blood ?

(A) Right Atrium

(B) Right Ventricle

(C) Left Atrium

(D) Left Ventricle


43. Haemoglobin is

(A) Simple Protein

(B) Conjugated Protein

(C) Complex Protein

(D) Lipids


47. In human body urea is produced in

(A) Kidney

(B) Stomach

(C) Small intestine

(D) Liver


53. The main constituent of blood is

(A) Albumin

(B) Globulin

(C) Fibrinogen

(D) All of the above


57. A gas which expands in volume(liquid form) when cooled further into liquid state

(A) Liquid Ammonia

(B) Liquid Helium

(C) Liquid Hydrogen

(D) Liquid Oxygen


63. Which of the following is not an ore of magnesium ?

(A) Magnesite

(B) Carnallite

(C) Dolomite

(D) Gypsum


67. If the velocity ratio of a machine is 10 and the mechanical advantage is 5, then the efficiency of the machine is

(A) 100%

(B) 75%

(C) 50%

(D) 25%


69. When a liquid solidifies its volume increases by 10%. What is the volume when the solid melts ?

(A) 10%

(B) 11¹⁄₉%

(C) 9¹⁄₁₁%

(D) 20%


78. The maximum level of sound intensity beyond which it affects human hearing ?

(A) 25 decibel

(B) 45 decibel

(C) 65 decibel

(D) 80 decibel


80. The power of a lens is 2 Dioptre. What will be the focal length of the lens ?

(A) 100 cm

(B) 50 cm

(C) 30 cm

(D) 20 cm


88. Which of the following is an example of second class lever ?

(A) Spade

(B) Punching Machine

(C) Scissor

(D) General Cotton Machine


90. If a particle travels a circular path of radius r once in t seconds and reaches its destination, the velocity of the particle will be

(A) 2πrt

(B) Zero

(C) t/(2πr)

(D) (2πr/t)


91. Which of the following is a plant hormone ?

(A) Ascorbic Acid

(B) Indole Acetic Acid

(C) Folic Acid

(D) Fumaric Acid


94. Blood pressure is measured by which instrument ?

(A) Stethoscope

(B) Sphygmanometer

(C) Douglas Bag

(D) None of the above


98. The solubility of which of the following compounds decreases with increase in temperature?

(A) NH4Br

(B) Na2SO4

(C) CaSO4

(D) All of the above


100. Which of the following is not a polymer?

(A) Rubber

(B) Cellulose

(C) Fructose

(D) Protein



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