HPSC Haryana Civil Services General Science GS Study Material 2021: Haryana Public Service Commission (HPSC) will conduct HCS (Ex. Br.) & Other Allied Services Prelims Examination on 12th September 2021. Prelims Exam will consist of two papers: Paper-1 & Paper-2. This exam is only for short-listing candidates on the basis of marks obtained by them in the subject of General Studies (Paper - I) only, provided that the candidate has scored 33% marks in Civil Services Aptitude Test (Paper-II).
| HPSC Haryana Civil Services (HCS) 2021 Preliminary Examination (for screening only) | ||
| Paper | Number of Questions & Marks | Duration |
| Paper–I: General Studies (GS) | 100 Questions & 100 Marks | 2 Hours |
| Paper-II: Civil Services Aptitude Test (CSAT) | 100 Questions & 100 Marks | 2 Hours |
Check HPSC Haryana Civil Services 2021 Recruitment Exam Pattern & Syllabus
Remember, this exam is for the screening purpose only and the marks obtained in Preliminary Examination will not be counted towards the final selection. Both Paper 1 & 2 shall be of objective type (multiple choices) questions and each paper shall be of two hours duration. The paper will be set in English and Hindi Languages. There will be a negative marking of 0.25 marks for wrong answers.
Download Previous Year Papers of HPSC Haryana Civil Services Exam
HPSC Haryana Civil Services 2021 Prelims Exam - Important General Science Topics
Here are some important topics from the General Science Subject of the HPSC HCS 2021 Exam:
| Topics | Syllabus |
| General Science | Questions on General Science will cover general appreciation and understanding of science including matters of everyday observation and experience, as may be expected of a well-educated person who has not made a special study of any particular scientific discipline |
| Biology- Important and Interesting facts about human body parts, Nutrition in Animals and Plants, Diseases and their causes like Bacteria; | |
| Physics - S.I. units, Motion, Sound, Light, Wave, Energy, Electricity; | |
| Chemistry - Chemical Properties of Substance and their uses, Chemical Name of Important substances like Plaster of Paris, etc., Chemical Change and Physical Change, Properties of Gases, Surface Chemistry, Chemistry in Everyday Life; Daily Science |
HPSC Haryana Civil Services 2021 Exam - Important Questions for General Science with Answers
Below are some important questions covering the main concepts of General Science:
1. Pigment containing and light-reflecting cells are:
(A) Leucoplasts
(B) Chloroplasts
(C) Chromatophore
(D) Chlornatoplasts
Answer: C
Explanation: The pigment-containing and light-reflecting cells, or groups of cells are known as Chromatophores. They are found in bacteria and a wide range of animals like amphibians, fishes, reptiles, etc.
2. Blue Revolution refers to the great increase in which economic activity?
(A) Fertilizers
(B) Dairy
(C) Commercial Farming
(D) Aquaculture
Answer: D
Explanation: The term blue revolution refers to the remarkable emergence of aquaculture as an important and highly productive agricultural activity. Aquaculture refers to all forms of active culturing of aquatic animals and plants, occurring in marine, brackish, or freshwaters.
3. What does the earth do on its axis?
(A) Rotates
(B) Revolves
(C) Spins
(D) Circumnavigates
Answer: C
Explanation: Every day, the Earth spins once around its axis, making sunrises and sunsets a daily feature of life on the planet.
4. A geostationary satellite is positioned at a distance of how many kilometres above mean sea level?
(A) 35,880
(B) 37,880
(C) 35,786
(D) 32,000
Answer: C
Explanation: A satellite in such an orbit is at an altitude of approximately 35,786 km (22,236 mi) above mean sea level. It maintains the same position relative to the Earth's surface.
5. What kind of endosymbiotic microorganisms are there in nitrogen-fixing bacteria?
(A) Rhizobium
(B) Procaryoctic
(C) Azotobacter
(D) Cyanobacteria
Answer: B
Explanation: Nitrogen-fixing bacteria are prokaryotic microorganisms that are capable of transforming nitrogen gas from the atmosphere into “fixed nitrogen” compounds, such as ammonia, that are usable by plants.
6. Black Cotton Soils are also known as:
(A) Regur
(B) Khadar
(C) Bhabar
(D) Bhangar
Answer: A
Explanation: The black soil is also known as Regur soil or regular soil since cotton has been the most common traditional crop in areas where they are found.
7. The three major Kharif crops grown in Haryana are:
(A) Paddy, Sugarcane, Cotton
(B) Chillies, Wheat, Jowar
(C) Bajra, Wheat, Pulses
(D) Millet, Sunflower, Mustard
Answer: A
Explanation: The major Kharif crops of Haryana are rice, jawar, bajra, maize, cotton, jute, sugarcane, sesame and groundnut.
8. The oceanic current produced by the irregularly periodic variation in winds and sea surface temperatures over the tropical eastern Pacific Ocean is known as:
(A) Humboldt Current
(B) El Nino
(C) Canary Current
(D) Agulhas Current
Answer: B
Explanation: According to researchers, El Nino-Southern Oscillation (ENSO) is an irregularly periodic variation in wind and sea surface temperatures over the tropical eastern Pacific Ocean, affecting the climate of much of the tropics and subtropics.
9. A high molecular weight compound formed by combining large numbers of small molecules of low molecular weight is called:
(A) Polymer
(B) Alkali
(C) Acid
(D) Direct Eyes
Answer: A
Explanation: A high molecular weight compound formed by combining large numbers of small molecules of low molecular weight is called Polymer. A polymer is a large molecule composed of many repeated subunits, known as monomers.
10. A vector is a physical quantity that has:
(A) Mass and volume
(B) Density and Tension
(C) Inertia and Stress
(D) Magnitude and Direction
Answer: D
Explanation: Vector, in physics, is a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude.
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