Dear Aspirants,
We are providing the most important General Science Previous year Questions for RRB NTPC 2019, RRB Group D 2019, SSC 2019 and all other competitive exams. These questions have very high chances to be asked in RRB NTPC 2019, RRB Group D 2019.
Set-5 General Science Previous Year Questions
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1.In which of the following processes is energy released?
1. Respiration
2. Photosynthesis
3. Ingestion
4. Absorption
Ans:1
2.The technique of collecting information about an object from a distance without making physical contact with it is –
1. Remote sensing
2. Remote control
3. Remote accessing
4. Space Shuttleg
Ans:1
3.“Curie” is the unit of –
1. Radioactivity
2. Temperature
3. Heat
4. Energy
Ans:1
4.The Source of the sun’s energy, is the process of –
1. Photoelectric emission
2. Nuclear fission
3. Nuclear fusion
4. Thermionic emission
Ans:3
5.The strongest force in nature is –
1. Electrical force
2. Gravitational force
3. Nuclear force
4. Magnetic force
Ans:3
6.In nuclear reactor, heavy water is used as –
1. Coolant
2. Fuel
3. Moderator
4. Atomic smasher
Ans:3
7.Electric current in a metal wire is due to the flow of –
1. Electrons
2. Protons
3. Ions
4. Holes
Ans:1
8.The nature of fuse wire is –
1. Low melting point
2. High melting point
3. High conductivity
4. None of these
Ans:1
9.A transformer –
1. converts DC to AC
2. is used to decrease or increase AC voltage
3. converts AC voltage to DC voltage
4. converts electrical energy into mechanical energy
Ans:2
10.Blood fails to clot, while flowing in the blood vessel because of the presence of –
1. Heparin
2. Prothrombin
3. Haemoglobin
4. Hirudin
Ans:1
11. Which one of the following is called the ‘digestive bag’ in the cell?
1. Golgi body
2. Mitochondrion
3. Ribosome
4. Lysosome
Ans:4
12. Which one of the following is also called the ‘power house’ of the cell ?
1. Golgi body
2. Mitochondrion
3. Ribosome
4. Lysosome
Ans:2
13. Which one of the following is not a part of small intestine?
1. Caecum
2. Duodenum
3. Jejunum
4. Ileum
Ans:1
14. Cell or tissue death within a living body is called as –
1. Neutrophils
2. Nephrosis
3. Necrosis
4. Neoplasia
Ans:3
15. Which of the following blood cells is compulsory for blood caogulation ?
1. Platelets
2. Red blood corpuscles
3. White blood corpuscles
4. Lymphocytes
Ans:1
16. Which is the largest living bird on Earth ?
1. Emu
2. Ostrich
3. Albatross
4. Siberian crane
Ans:2
17. Blood groups were discovered by –
1. Almann
2. Landsteiner
3. Losch
4. Ronald Ross
Ans:2
18. Transport of oxygen by blood takes place with the help of –
1. Hemoglobin
2. Thrombocytes
3. Lymphocytes
4. Leucocytes
Ans:1
19. In the human body, fats are stored in the –
1. Epidermis
2. Adipocytes
3. Liver
4. Epithelium
Ans:2
20. Stem cells which capable of developing into other types of cells come from the –
1. Roots
2. Stem
3. Embryo
4. Flower
Ans:3