Updated On : April 3, 2023
The examination and recruitment of engineers of the A & B group in the various central government departments are taken by the Union Public Service Commission (UPSC). As the UPSC CGS Exam is knocking at the door, we are bringing you with the UPSC Combined GEO Scientist Important Questions 2020 in this article that will help you to decide what topics to give more emphasis on. Go through the complete article to know all the important topics and all-important questions that might come in the upcoming 2020 exam.
The UPSC is an abbreviated form of the Union Public Service Commission, which is responsible for recruiting and conducting examinations for several Central Government A group and B group of central services. The UPSC CGS exams are conducted for hiring various A & B group officers like Geologist, Geophysicist, Chemist and Junior Hydrologist across multiple government departments of India. The aspirants need to practice the UPSC CGS Important Topics to clear the Prelims and Mains exam. The UPSC CGS Prelims and Mains serve as an important gateway for candidates preparing for different scientific positions.
The UPSC CGS Prelims Important Questions from General Studies mainly focuses on the General Knowledge and Current Affairs questions and are discussed in detail below.
Ans. S. Ramesh.
2. Which country’s women's cricket team has clinched the Asia Cup Twenty-20 tournament 2018?
Ans: Bangladesh.
3. Shantaram Laxman Naik, who passed away recently, was the former Congress chief of which state?
Ans: Goa.
4. Which of the following personalities is considered to be the originator of Sankhya philosophy?
(A) Adi Shankaracharya
(B) Bharat Muni
(C) Kapil Muni
(D) Agastya Rishi
Ans: (C) Kapil Muni.
5. Mahatma Gandhi founded the ______ newspaper in 1903 in South Africa.
Ans: Indian Opinion.
The UPSC CGS Prelims Important Topics for General Studies Section are as follows-
The UPSC CGS Important Questions for Geology and Hydrology includes basic concepts theories about evolution, formation, and history of the earth. Other topics incorporate Sedimentology, Palaeontology, Mineralogy and Metamorphic Petrology. Precious metals and elements are important topics that candidates must focus on Paper III from Geology. If aspirants are preparing for Hydrology then for Paper III vital chapters consist of Groundwater and Hydraulics. The questions are given in details below.
(b) Discuss the salient events of the fragmentation of the Gondwanaland during the Premium Cretaceous interval?
2. (a) describe the concept of equilibrium in the context of textual, mineralogical and chemical changes in metamorphic rocks?
(b) Comment on the Ultra High-Pressure metamorphism.
3. (a) Describe the geological characteristics and distribution of iron-ore deposits in India.
(b) Write about the distribution of some of the important gemstones in India.
(c.) Describe the evolution of mineral legislation in India.
4. (a) Explain how the hydrogeomorphic map is prepared and how it is used in delineating the groundwater potential zones.
(b) Describe the seismic refraction method of prospecting and how it is useful in groundwater exploration.
(c.) Discuss the different methods of interpretation of resistivity data with special reference to the curve matching techniques.
5. (a) Write about the buckling mechanism of folding. How does it explain the association of folds of different wavelengths and amplitudes?
(b) Draw a 3D diagram for normal, thrust and slip faults show the orientation of 𝞼1, 𝞼2, and 𝞼3 responsible for the generation of the faults.
The UPSC CGS Prelims Important Topics for Geology/Hydrogeology are as follows-
Geology/Hydrology Paper I
Geology/Hydrology Paper II
Geology Paper III
Hydrology Paper III
The UPSC CGS Important Questions for Geophysics revolves around topics like Seismology, Mathematical Calculations and Different Laws in physics, Magnetic Fields, Nuclear Particles, Ocean and Radar System. The questions are provided below.
(B) What is ionization potential? The ionization potentials of most of the gases in Earth’s atmosphere are around 15 eV. Will green light (𝞴=550mm) ionize these gases? Take ( 1J = 6.24x1018eV)
(C.) Verify Caley Hamilton theorem for the matrix
A=Also, calculate its eigenvalues and corresponding to any of these values, calculate the eigenvector.
(D) What is Brownian motion? State its three observed characteristics?
Sedimentation is a familiar example of Brownian motion. Obtain an expression for the variation of number density with the height under the influence of gravity and motion.
(B) Draw a neat sketch explaining the elements of Earth’s magnetic field. Express the magnetic potential V at any point on the surface of the Earth in its spherical coordinate system, signifying its internal and external origins.
(Aii) If a radar of 1 MW peak power and the antenna gain of 1000 irradiates a 1m2 target with a 10 𝞵sec pulse at 1000 km range, what energy density arrives at the radar and at how much elapsed time?
(Bi) Distinguish between active and passive satellites.
(Bii) What do you understand by an orbit, apogee, and perigee of a satellite?
(Ci) Explain the design and working principle of an optical fiber?
(Cii) A communication system uses 10km of an optical fibre having a loss of 2.3dB/km. Calculate the outpower of the receiving end, if the power at the input is 400𝞵W.
(Aii) List the four elements of the weather?
(Aiii) Explain the Stefan Boltzmann law of radiation?
(Bi)Describe the ghost and peg-leg in seismic data with a neat sketch diagram.
(Bii) Explain the principle of seismic reflection data acquisition in a marine environment with a neat sketch diagram.
(Ci) Discuss ocean basin, ocean ridge and ocean trench with suitable examples.
(Cii) What is radiometric age dating? How can you calculate the absolute age of a rock?
Geophysics Paper I (Part-A)
Geophysics Paper I (Part-B)
Geophysics Paper-II (Part-A)
Geophysics Paper-II (Part-B)
Geophysics Paper III (Part-A)
Geophysics Paper III (Part-B)
The UPSC CGS Important Questions for Chemistry incorporates three papers with topics like Periodic Table, Redox Titrations, Gas Laws, Catalysis Concepts and Electrochemistry, Reactions, Structural Bondings, and Spectroscopy.
(c ) Write down the products formed from the following reactions:
(b) Write down the expression of the Langmuir absorption isotherm in terms of the fraction of surface site covered (𝚹) and the equilibrium pressure (P) of the absorbed gas at a constant temperature. How would you determine the constant involvement in this equation?
2. A spherical water drops of radius 1.0mm is sprayed into millions of droplets of the same size. Find the work done in the process. Given that 𝜸 (surface tension) of water at the experimental temperature in 72.0 dyne cm-1.
3. (a) What are the characteristics of pericyclic reactions ? Give pi molecular orbital diagram of l,3,5<hexatriene. Indicate
(i) Ground state HOMO and LUMO, and
(ii) Excited state HOMO and LUMO of the system.
(b) Complete the following reactions :
(i) CH3 - CH2 - Cl
(ii) C6H5CHO
(c ) Arrange Vmax (C=O) of the following compounds in decreasing order. Give reasons in favor of your answer.
The following are the UPSC CGS Prelims Important Topics for Chemistry-
Chemistry Paper I (Inorganic Chemistry)
Chemistry Paper II (Physical Chemistry)
Chemistry Paper III (Part-A) (Analytical Chemistry)
Chemistry Paper III (Part- B) (Organic chemistry)
The candidates preparing for the UPSC CGS should clear all the three stages, including Personal Interview, to get a scientific job in Government Departments. If a candidate fails in any paper, then they are disqualified. Thus, aspirants should practice all the Important Questions provided subject-wise for the UPSC CGS exams.
April 3, 2023
The examination and recruitment of engineers of the A & B group in the various central government departments are taken by the Union Public Service Commission (UPSC). As the UPSC CGS Exam is knocking at the door, we are bringing you with the UPSC Combined GEO Scientist Important Questions 2020 in this article that will help you to decide what topics to give more emphasis on. Go through the complete article to know all the important topics and all-important questions that might come in the upcoming 2020 exam.
The UPSC is an abbreviated form of the Union Public Service Commission, which is responsible for recruiting and conducting examinations for several Central Government A group and B group of central services. The UPSC CGS exams are conducted for hiring various A & B group officers like Geologist, Geophysicist, Chemist and Junior Hydrologist across multiple government departments of India. The aspirants need to practice the UPSC CGS Important Topics to clear the Prelims and Mains exam. The UPSC CGS Prelims and Mains serve as an important gateway for candidates preparing for different scientific positions.
The UPSC CGS Prelims Important Questions from General Studies mainly focuses on the General Knowledge and Current Affairs questions and are discussed in detail below.
Ans. S. Ramesh.
2. Which country’s women's cricket team has clinched the Asia Cup Twenty-20 tournament 2018?
Ans: Bangladesh.
3. Shantaram Laxman Naik, who passed away recently, was the former Congress chief of which state?
Ans: Goa.
4. Which of the following personalities is considered to be the originator of Sankhya philosophy?
(A) Adi Shankaracharya
(B) Bharat Muni
(C) Kapil Muni
(D) Agastya Rishi
Ans: (C) Kapil Muni.
5. Mahatma Gandhi founded the ______ newspaper in 1903 in South Africa.
Ans: Indian Opinion.
The UPSC CGS Prelims Important Topics for General Studies Section are as follows-
The UPSC CGS Important Questions for Geology and Hydrology includes basic concepts theories about evolution, formation, and history of the earth. Other topics incorporate Sedimentology, Palaeontology, Mineralogy and Metamorphic Petrology. Precious metals and elements are important topics that candidates must focus on Paper III from Geology. If aspirants are preparing for Hydrology then for Paper III vital chapters consist of Groundwater and Hydraulics. The questions are given in details below.
(b) Discuss the salient events of the fragmentation of the Gondwanaland during the Premium Cretaceous interval?
2. (a) describe the concept of equilibrium in the context of textual, mineralogical and chemical changes in metamorphic rocks?
(b) Comment on the Ultra High-Pressure metamorphism.
3. (a) Describe the geological characteristics and distribution of iron-ore deposits in India.
(b) Write about the distribution of some of the important gemstones in India.
(c.) Describe the evolution of mineral legislation in India.
4. (a) Explain how the hydrogeomorphic map is prepared and how it is used in delineating the groundwater potential zones.
(b) Describe the seismic refraction method of prospecting and how it is useful in groundwater exploration.
(c.) Discuss the different methods of interpretation of resistivity data with special reference to the curve matching techniques.
5. (a) Write about the buckling mechanism of folding. How does it explain the association of folds of different wavelengths and amplitudes?
(b) Draw a 3D diagram for normal, thrust and slip faults show the orientation of 𝞼1, 𝞼2, and 𝞼3 responsible for the generation of the faults.
The UPSC CGS Prelims Important Topics for Geology/Hydrogeology are as follows-
Geology/Hydrology Paper I
Geology/Hydrology Paper II
Geology Paper III
Hydrology Paper III
The UPSC CGS Important Questions for Geophysics revolves around topics like Seismology, Mathematical Calculations and Different Laws in physics, Magnetic Fields, Nuclear Particles, Ocean and Radar System. The questions are provided below.
(B) What is ionization potential? The ionization potentials of most of the gases in Earth’s atmosphere are around 15 eV. Will green light (𝞴=550mm) ionize these gases? Take ( 1J = 6.24x1018eV)
(C.) Verify Caley Hamilton theorem for the matrix
A=Also, calculate its eigenvalues and corresponding to any of these values, calculate the eigenvector.
(D) What is Brownian motion? State its three observed characteristics?
Sedimentation is a familiar example of Brownian motion. Obtain an expression for the variation of number density with the height under the influence of gravity and motion.
(B) Draw a neat sketch explaining the elements of Earth’s magnetic field. Express the magnetic potential V at any point on the surface of the Earth in its spherical coordinate system, signifying its internal and external origins.
(Aii) If a radar of 1 MW peak power and the antenna gain of 1000 irradiates a 1m2 target with a 10 𝞵sec pulse at 1000 km range, what energy density arrives at the radar and at how much elapsed time?
(Bi) Distinguish between active and passive satellites.
(Bii) What do you understand by an orbit, apogee, and perigee of a satellite?
(Ci) Explain the design and working principle of an optical fiber?
(Cii) A communication system uses 10km of an optical fibre having a loss of 2.3dB/km. Calculate the outpower of the receiving end, if the power at the input is 400𝞵W.
(Aii) List the four elements of the weather?
(Aiii) Explain the Stefan Boltzmann law of radiation?
(Bi)Describe the ghost and peg-leg in seismic data with a neat sketch diagram.
(Bii) Explain the principle of seismic reflection data acquisition in a marine environment with a neat sketch diagram.
(Ci) Discuss ocean basin, ocean ridge and ocean trench with suitable examples.
(Cii) What is radiometric age dating? How can you calculate the absolute age of a rock?
Geophysics Paper I (Part-A)
Geophysics Paper I (Part-B)
Geophysics Paper-II (Part-A)
Geophysics Paper-II (Part-B)
Geophysics Paper III (Part-A)
Geophysics Paper III (Part-B)
The UPSC CGS Important Questions for Chemistry incorporates three papers with topics like Periodic Table, Redox Titrations, Gas Laws, Catalysis Concepts and Electrochemistry, Reactions, Structural Bondings, and Spectroscopy.
(c ) Write down the products formed from the following reactions:
(b) Write down the expression of the Langmuir absorption isotherm in terms of the fraction of surface site covered (𝚹) and the equilibrium pressure (P) of the absorbed gas at a constant temperature. How would you determine the constant involvement in this equation?
2. A spherical water drops of radius 1.0mm is sprayed into millions of droplets of the same size. Find the work done in the process. Given that 𝜸 (surface tension) of water at the experimental temperature in 72.0 dyne cm-1.
3. (a) What are the characteristics of pericyclic reactions ? Give pi molecular orbital diagram of l,3,5<hexatriene. Indicate
(i) Ground state HOMO and LUMO, and
(ii) Excited state HOMO and LUMO of the system.
(b) Complete the following reactions :
(i) CH3 - CH2 - Cl
(ii) C6H5CHO
(c ) Arrange Vmax (C=O) of the following compounds in decreasing order. Give reasons in favor of your answer.
The following are the UPSC CGS Prelims Important Topics for Chemistry-
Chemistry Paper I (Inorganic Chemistry)
Chemistry Paper II (Physical Chemistry)
Chemistry Paper III (Part-A) (Analytical Chemistry)
Chemistry Paper III (Part- B) (Organic chemistry)
The candidates preparing for the UPSC CGS should clear all the three stages, including Personal Interview, to get a scientific job in Government Departments. If a candidate fails in any paper, then they are disqualified. Thus, aspirants should practice all the Important Questions provided subject-wise for the UPSC CGS exams.