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BPSC 2023 — Science & Technology Questions with Answers
All 73 Science & Technology previous-year questions from BPSC 2023, each with the correct answer and a full explanation. Practise them as a free, timed mock test with instant scoring.
Practice Science & Technology as a timed test →- Q1.Space
How does India's growing status as an emerging space power align with its ambitions and achievement in space exploration, particularly in the context of the Chandrayaan-3 mission by ISRO? Discuss the mission's goals and its role in India's journey towards becoming a prominent player in the global space arena.
- Q2.Information Technology
Write short answer: What is the role of computer in modern society?
- Q3.Technology and Society
Write short answer: With suitable examples, discuss the relationship between technology and social development.
- Q4.Applied Science and Technology
Write short answer: Discuss the role of science and technology in industrial development of Bihar.
- Q5.Technology Applications
Write short answer: Discuss how modern technology helped us during corona pandemic.
- Q6.Technology and Environment
Write short answer: Write a note on the role of technology in sustainable development.
- Q7.Technology and Environment
Misuse of technology and its wrong application lead to pollute the environment and cause climatic changes. Discuss with suitable examples, how misuse of technology has become a cure to the environment of India.
- Q8.Nanotechnology
Nanotechnologies have a huge potential to revolutionise our life. Discuss the emerging applications of nanotechnology in human health.
- Q9.Health
Which animal has been approved as a food animal by the Food Safety and Standards Authority of India (FSSAI) in November 2022?
- a)Himalayan Yak
- b)Mountain Goat
- c)Himalayan Tahr
- d)More than one of the above
- Q10.Information Technology
The President of India inaugurated the 'Param Kamrupa' supercomputer facility at which of the following IITs?
- a)Kharagpur
- b)Bombay
- c)Guwahati
- d)More than one of the above
- e)None of the above
- Q11.Space Technology
What is the name of the final module recently launched for China's Tiangong space station?
- a)Tianhe
- b)Wentian
- c)Mengtian
- d)More than one of the above
- e)None of the above
- Q12.Space
What was the theme of World Space Week, 2022?
- a)Women in Space
- b)Satellites make life better
- c)Space and Sustainability
- d)More than one of the above
- e)None of the above
- Q13.Nuclear Energy
Which of the following laboratories claimed a historic nuclear fusion success in December 2022?
- a)Lawrence Livermore National Laboratory
- b)Oak Ridge National Laboratory
- c)Los Alamos National Laboratory
- d)More than one of the above
- e)None of the above
- Q14.Space Technology
Which of the following space agencies announced that it has successfully used steam to propel its EQUULEUS spacecraft?
- a)NASA
- b)SUPARCO
- c)JAXA
- d)More than one of the above
- e)None of the above
- Q15.Artificial Intelligence
What is the name of the Tesla humanoid robot launched in October 2022?
- a)Optimus
- b)Atlas
- c)Pepper
- d)More than one of the above
- e)None of the above
- Q16.Physics
The atmosphere is mainly heated by which of the following?
- a)Short-wave solar radiation
- b)Reflected solar radiation
- c)Long-wave terrestrial radiation
- d)More than one of the above
- e)None of the above
- Q17.Chemistry
A form of matter has no definite shape, but it has a definite volume. An example of this form of matter is
- a)Krypton
- b)Kerosene oil
- c)Carbon steel
- d)More than one of the above
- e)None of the above
- Q18.Chemistry
Some metal oxides react with acids and bases to form salt and water. They are called amphoteric oxides. Examples of amphoteric oxides are
- a)Al2O3 and ZnO
- b)Al2O3 and CuO
- c)CuO and ZnO
- d)More than one of the above
- e)None of the above
- Q19.Chemistry
Acids react with metal carbonates to release ______ gas.
- a)CO2
- b)CO
- c)H2
- d)More than one of the above
- e)None of the above
- Q20.Chemistry
What acid is HOOCCOOH called?
- a)Oxalic acid
- b)Acetic acid
- c)Carbonic acid
- d)More than one of the above
- e)None of the above
- Q21.Chemistry
You are given three test tubes. One of them contains distilled water, and the other two contain an acidic solution and a basic solution respectively. In which of these will red litmus turn blue?
- a)Acid
- b)Base
- c)Distilled water
- d)More than one of the above
- e)None of the above
- Q22.Chemistry
The smell of acetic acid is similar to that of?
- a)Tomato
- b)Kerosene oil
- c)Vinegar
- d)More than one of the above
- e)None of the above
- Q23.Chemistry
Why does dry HCl gas not change the color of dry litmus paper?
- a)In the presence of dry HCl gas, blue litmus dries up.
- b)No H3O+ ions will be present. Litmus changes color only in the presence of H3O+ ions.
- c)HCl gas acts as a dehydrating agent.
- d)More than one of the above
- e)None of the above
- Q24.Chemistry
Which of the following statements about diamond and graphite is true?
- a)They have the same crystal structure.
- b)They have the same degree of hardness.
- c)Their electrical conductivity is the same.
- d)More than one of the above
- e)None of the above
- Q25.Biology — Botany
Due to changes in what do stomata open or close?
- a)Protein structure of cells
- b)Amount of water in cells
- c)Position of nucleus in cells
- d)More than one of the above
- e)None of the above
- Q26.Biology
Chlorophyll absorbs ______ wavelengths of sunlight.
- a)Green and blue
- b)Green and red
- c)Red and blue
- d)More than one of the above
- e)None of the above
- Q27.Biology
Which of the following pairs is not correctly matched?
- a)Thick, hard stem with branches near the base : Tree
- b)Weak stem that cannot stand upright : Creeper
- c)Petiole : Connects leaf to stem
- d)More than one of the above
- e)None of the above
- Q28.Biology — Botany
Due to suction pull, water reaches great heights in trees, the reason for which is
- a)Absorption
- b)Transpiration
- c)Evaporation
- d)More than one of the above
- e)None of the above
- Q29.Biology — Molecular Biology
Which of the following is a characteristic of chloroplasts that makes them capable of self-replication?
- a)Presence of only DNA
- b)Absence of RNA
- c)Presence of both DNA and RNA
- d)More than one of the above
- e)None of the above
- Q30.Biology — Human Physiology
The parts of the skeleton that are not as hard as bones and can be bent are
- a)Carpals
- b)Cartilage
- c)Vertebrae
- d)More than one of the above
- e)None of the above
- Q31.Biology — Ecology
In lichens, a chlorophyll-containing partner, lives together with a partner.
- a)Fungi and bacteria
- b)Algae and viruses
- c)Algae and fungi
- d)More than one of the above
- e)None of the above
- Q32.Biology
Female Anopheles can be distinguished from female Culex because it sits
- a)at an angle with the substrate
- b)parallel to the surface of the substrate
- c)perpendicular to the surface of the substrate
- d)More than one of the above
- e)None of the above
- Q33.Biology — Immunology
The most important cell type associated with the body's immune response is
- a)Platelet
- b)Lymphocyte
- c)R.B.C.
- d)More than one of the above
- e)None of the above
- Q34.Biology — Human Physiology
Which of the following statements about human body muscles is incorrect?
- a)Muscles work in pairs.
- b)When contracting, muscles become short, hard, and thick.
- c)Muscles can only push bones.
- d)More than one of the above
- e)None of the above
- Q35.Physics — Optics
To form an image of a white horse on the surface of a convex lens with a focal length of 20 cm, a large number of thin black strips are made. How will that image be?
- a)A zebra of black strips
- b)A horse of black strips
- c)A horse with reduced brightness
- d)More than one of the above
- e)None of the above
- Q36.Physics
The sharpness (pitch) of sound is determined by?
- a)Amplitude of sound
- b)Wavelength of sound
- c)Velocity of sound
- d)More than one of the above
- e)None of the above
- Q37.Information Technology
Which of the following photoelectric devices is most suitable for digital applications?
- a)Photo-voltaic cell
- b)Photo-emitter
- c)Photo-diode
- d)More than one of the above
- e)None of the above
- Q38.Physics
Ball bearings are used to convert static friction into which of the following?
- a)Drag
- b)Sliding friction
- c)Rolling friction
- d)More than one of the above
- e)None of the above
- Q39.Physics
In the game of football, a goalkeeper pulls his hands backward after catching the ball in the goal. How does this make it easier for the goalkeeper?
- a)To apply more force on the football
- b)To increase the force applied by the football on the hands
- c)To reduce the rate of change of momentum
- d)More than one of the above
- e)None of the above
- Q40.Physics — Modern Physics
Which one of the following is a positively charged particle emitted by a radioactive element?
- a)Beta ray
- b)Alpha ray
- c)Cathode ray
- d)More than one of the above
- e)None of the above
- Q41.Physics
Centripetal force is responsible for:
- a)Keeping an object in a circular path
- b)Keeping an object in a straight line
- c)Free movement of an object in space
- d)More than one of the above
- e)None of the above
- Q42.Physics — Energy
Which of the following energy conversions involves friction?
- a)Potential energy to sound energy
- b)Chemical energy to heat energy
- c)Kinetic energy to heat energy
- d)More than one of the above
- e)None of the above
- Q43.Physics
A bus is moving on a straight road and suddenly takes a sharp right turn. The passengers sitting in the bus will:
- a)Fall forward
- b)Lean to the left
- c)Lean to the right
- d)More than one of the above
- e)None of the above
- Q44.Physics
Before playing an orchestra in a musical program, a sitar player tries to adjust the tension of the string and ties the string appropriately. What is he trying to adjust by doing this?
- a)Amplitude of sound
- b)Loudness of sound
- c)Frequency of the sitar string with other instruments
- d)More than one of the above
- e)None of the above
- Q45.Telecommunications
Which of the following technologies will be enabled by the 5G mobile communication networks? 1. Internet of Things 2. Edge Computing 3. Network Slicing. Select the correct answer using the codes given below.
- a)Only 1 and 2
- b)Only 2 and 3
- c)Only 1 and 3
- d)1, 2 and 3
- Q46.Space Missions
Match List-I (Space Mission) with List-II (Exploration): a. Cassini-Huygens b. Juno c. Artemis d. VERITAS ; 1. Jupiter 2. Saturn and its rings 3. Venus 4. Human Space-flight — Moon to Mars. Select the correct answer using the codes given below.
- a)a-2, b-1, c-4, d-3
- b)a-3, b-1, c-4, d-2
- c)a-2, b-3, c-4, d-1
- d)a-3, b-1, c-2, d-4
- Q47.Biology — Health
Consider the following statements: 1. Taeniasis is an intestinal infection caused by three species of tapeworm — Taenia solium, Taenia saginata and Taenia asiatica. 2. When cysts develop in the brain, the condition is referred to as neurocysticercosis (NCC). Which of the above statements is/are correct?
- a)Only 1
- b)Only 2
- c)Both 1 and 2
- d)None of the above
- Q48.Computer Science
Which of the following are computer languages? 1. Cobra 2. Python 3. Squirrel 4. Java. Select the correct answer using the codes given below.
- a)Only 1 and 2
- b)Only 3 and 4
- c)Only 1, 2 and 3
- d)All of the above
- Q49.Artificial Intelligence
What is the full form of GPT in ChatGPT, recently seen in the news?
- a)Glutamic Pyruvic Transaminase
- b)GUID Partition Table
- c)Grooved Pegboard Test
- d)Generative Pre-Trained Transformer
- Q50.Biology — Human Physiology
Which of the following are not the tastes of the tongue? 1. Sweet 2. Bitter 3. Salty 4. Spicy 5. Umami 6. Sour 7. Pungent. Select the correct answer using the codes given below.
- a)2, 5 and 7
- b)1, 3 and 4
- c)4 and 7
- d)3 and 6
- Q51.Biology — Health
Which of the following pairs are correctly matched? 1. Anorexia : Sleep disorder 2. Insomnia : Eating disorder 3. Dyspnoea : Shortness of breath 4. Anosmia : Partial or full loss of smell. Select the correct answer using the codes given below.
- a)Only 1 and 2
- b)Only 2 and 3
- c)Only 3 and 4
- d)All of the above
- Q52.Astronomy
In the universe, what are pulsars?
- a)A group of stars
- b)Rotating neutron stars
- c)Explosion of a star
- d)Radio waves emitted by a star
- Q53.Materials
In the context of lab-grown diamonds (LGDs), what is used as a diamond seed?
- a)White sapphire
- b)Moissanite
- c)Graphite
- d)Cubic zirconia (CZ)
- Q54.Materials
What is the 'fibre' used to make bulletproof jackets?
- a)Nylon
- b)Terylene
- c)Tweed
- d)Kevlar
- Q55.Robotics
What is the name of Tesla's humanoid robot launched in October 2022?
- a)Sophia
- b)Atlas
- c)Pepper
- d)Optimus
- Q56.Physics — Optics
The image formed by a concave mirror is real, inverted and of the same size as that of the object. The position of the object should be
- a)at the focus
- b)at the centre of curvature
- c)between the focus and centre of curvature
- d)beyond the centre of curvature
- Q57.Physics — Modern Physics
A photoelectric cell is a device which
- a)converts light energy into electric energy
- b)converts electric energy into light energy
- c)stores light energy
- d)None of the above
- Q58.Chemistry — Solutions
The amount of solute present per unit volume or per unit mass of the solution/solvent is known as ____ in Chemistry.
- a)composition of solute
- b)concentration of solvent
- c)concentration of solute
- d)concentration of solution
- Q59.Biology — Immunology
How do COVID vaccines stimulate an immune response?
- a)By introducing live attenuated SARS-CoV-2 virus
- b)By introducing a real SARS-CoV-2 virus
- c)By introducing a harmless piece of SARS-CoV-2 virus
- d)By introducing antibodies against SARS-CoV-2 virus
- Q60.Physics — Electricity
Which of the following liquids is a bad conductor of electricity?
- a)Salted water
- b)Orange juice
- c)Lemon juice
- d)None of the above
- Q61.Biology — Molecular Biology
The DNA double helix structure was discovered by
- a)James Watson and Francis Crick
- b)Rosalind Franklin and Maurice Wilkins
- c)Linus Pauling
- d)Gregor Mendel
- Q62.Physics — Gravitation
Two objects of different masses falling freely near the surface of the Moon would
- a)have different accelerations
- b)undergo a change in their inertia
- c)have same velocity at any instant
- d)experience forces of same magnitude
- Q63.Biology — Immunology
How do vector vaccines work to provide immunity?
- a)By introducing a weakened or inactivated virus into the body
- b)By directly attacking and destroying pathogens in the body
- c)By placing the virus in a modified version of a different virus
- d)By entering directly into the cells and enabling them to create spike proteins
- Q64.Geography — Geomorphology
The process that continually adds new crust is
- a)subduction
- b)earthquake
- c)seafloor spreading
- d)convection
- Q65.Geography — Geomorphology
The theory that states "pieces of the Earth's crust are in constant, slow motion driven by movement in the mantle" is called
- a)the theory of continental drift
- b)the theory of Pangaea
- c)the theory of plate tectonics
- d)the theory of plate boundaries
- Q66.Biology — Molecular Biology
What is the expanded form of the term 'mRNA' that has been widely discussed since the beginning of the pandemic?
- a)Messenger Ribonucleic Acid
- b)Mutant Ribonucleic Acid
- c)Modified Ribonucleic Acid
- d)Mnemonic Ribonucleic Acid
- Q67.Physics — Electricity
An AC current can be produced by
- a)choke coil
- b)dynamo
- c)transformer
- d)None of the above
- Q68.Physics — Electricity
Current density is
- a)a scalar quantity
- b)a vector quantity
- c)dimensionless
- d)None of the above
- Q69.Chemistry — Medicinal
What is the basis of most useful classification of medications in medical chemistry?
- a)Pharmacological effect
- b)Molecular targets
- c)Chemical structure
- d)None of the above
- Q70.Chemistry — Chemical Kinetics
Which of the following slows down the reaction rate?
- a)Catalytic promoter
- b)Homogeneous catalyst
- c)Heterogeneous catalyst
- d)None of the above
- Q71.Biology — Human Physiology
Input and output nerves meet at
- a)liver
- b)central nervous system
- c)heart
- d)None of the above
- Q72.Colours
Match List-I (Colour) with List-II (Combination): a. Magenta b. Teal c. Mauve d. Cyan ; 1. Green and blue 2. Red and blue 3. Blue, green and white 4. Blue, red and white. Select the correct answer using the codes given below.
- a)a-2, b-3, c-4, d-1
- b)a-2, b-4, c-3, d-1
- c)a-4, b-2, c-1, d-3
- d)a-3, b-4, c-2, d-1
- Q73.Palaeontology
Tillyardembi Fossils of the world's first plant pollinators, called Tillyardembiids, were discovered recently in which country?
- a)Greece
- b)India
- c)Russia
- d)China
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