{"id":11419241,"date":"2020-09-13T22:48:20","date_gmt":"2020-09-13T17:18:20","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=11419241"},"modified":"2020-09-13T22:48:20","modified_gmt":"2020-09-13T17:18:20","slug":"general-science-questions-for-rrb-ntpc","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/general-science-questions-for-rrb-ntpc\/","title":{"rendered":"General Science Questions for RRB NTPC 2020"},"content":{"rendered":"

General Science is a very important part of various Railway Exams like RRB NTPC, RRB Group D, RRB JE, etc. In this section, basic questions on various sections of the General Science syllabus like Physics, Chemistry, Biology are asked. We will help you in preparation by providing you list of \u00a0<\/em>General Science Questions for RRB NTPC 2020.The general Science section of CBT 1 Exam is of 30 Marks and would cover topics from Physics, Chemistry and Life Sciences (up to 10th Standard CBSE syllabus). In this blog we will discuss about General Science Questions for RRB NTPC 2020.<\/p>\n

Click here to attempt a free RRB NTPC mock tests to ace your Preparations<\/strong><\/a><\/p>\n

List of General Science Questions for RRB NTPC 2020<\/strong><\/h2>\n

1. In Human beings the process of digestion of food begins in:<\/strong><\/p>\n

a)\u00a0\u00a0\u00a0\u00a0\u00a0 Stomach<\/p>\n

b)\u00a0\u00a0\u00a0\u00a0\u00a0 Food Pipe<\/p>\n

c)\u00a0\u00a0\u00a0\u00a0\u00a0 Mouth<\/p>\n

d)\u00a0\u00a0\u00a0\u00a0\u00a0 Small Intestine<\/p>\n

Answer: c)<\/strong><\/p>\n

Explanation:<\/strong>\u00a0Digestion of food starts as soon as we put food in our mouth. The mouth cavity contains teeth, tongue and salivary glands. The teeth cut the food into small pieces, chew and grind it. The teeth help in physical digestion. The salivary glands help in chemical digestion by secreting enzymes.<\/p>\n

2. Which of the following organism have parasitic mode of nutrition?<\/strong><\/p>\n

a)\u00a0\u00a0\u00a0\u00a0\u00a0 Penicillium<\/p>\n

b)\u00a0\u00a0\u00a0\u00a0\u00a0 Plasmodium<\/p>\n

c)\u00a0\u00a0\u00a0\u00a0\u00a0 Paramecium<\/p>\n

d)\u00a0\u00a0\u00a0\u00a0\u00a0 Parrot<\/p>\n

Answer: b)<\/strong><\/p>\n

Explanation:<\/strong>\u00a0In parasitic nutrition organism derives its food from the body of another living organism called host without killing it. Parasitic mode of nutrition is observed in several fungi, bacteria, few plants like Cucuta and some animals like Plasmodium and round worms. Plasmodium causes malarial disease.<\/p>\n

3. Name the first enzyme that mix with food in the digestive tract?<\/strong><\/p>\n

a)\u00a0\u00a0\u00a0\u00a0\u00a0 Pepsin<\/p>\n

b)\u00a0\u00a0\u00a0\u00a0\u00a0 Trypsin<\/p>\n

c)\u00a0\u00a0\u00a0\u00a0\u00a0 Amylase<\/p>\n

d)\u00a0\u00a0\u00a0\u00a0\u00a0 None of the above<\/p>\n

Answer: c)<\/strong><\/p>\n

Explanation:<\/strong>\u00a0The salivary glands present in mouth secrete salivary amylase enzyme which digests the starch present in food into sugar. Digestion of starch or carbohydrate starts in mouth itself. Therefore, amylase is the first enzyme that helps in the process of digestion.<\/p>\n

4. Which of the following statement is true about ionic compounds?<\/strong><\/p>\n

    \n
  1. Ionic compounds conduct electricity when dissolved in water.<\/li>\n
  2. Ionic compounds are not soluble in water.<\/li>\n
  3. Ionic compounds are crystalline solids.<\/li>\n<\/ol>\n

    Correct options are:<\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Both 1 and 3<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 Both 1 and 2<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Both 2 and 3<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 All the three<\/p>\n

    Answer: a)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0Ionic compounds conduct electricity when dissolved in water or melted. They are soluble in water and are also crystalline solids.<\/p>\n

    5. The solution of one of the following compounds will conduct electricity. This compound is:<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 CCl4<\/sub><\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 HCl<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 CaCl2<\/sub><\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 CH3<\/sub>Cl<\/p>\n

    Answer: c)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0CaCl2\u00a0<\/sub>form ionic bond and so will conduct electricity.<\/p>\n

    Click here to attempt a free RRB NTPC mock tests to ace your Preparations<\/strong><\/a><\/p>\n

    6. What is an ionic bond?<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Ionic bond is formed by sharing of electrons between two atoms.<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 It is a bond formed by the transfer of electrons from one atom to another.<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Both A and B are correct<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 None of the above<\/p>\n

    Answer: b)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0Ionic bond is formed by the transfer of electrons from one atom to another.<\/p>\n

    7. Which mission of NASA brought first human to moon?<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Apollo program<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 Gemini Program<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Mercury Program<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 None of the above<\/p>\n

    Answer: a)<\/strong><\/p>\n

    Explanation:\u00a0<\/strong>Apollo program is NASA mission which brought first human to moon.<\/p>\n

    8. Name the first Spacecraft to visit the Solar System?<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Pioneer 10 and Pioneer 11<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 Ranger 1 and Ranger 2<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Surveyor 6 and Surveyor 7<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 Viking 1 and Viking 2<\/p>\n

    Answer: a)<\/strong><\/p>\n

    Explanation:\u00a0<\/strong>Pioneer 10 and Pioneer 11 is the first Spacecraft to visit the Solar System.<\/p>\n

    9. Which of the following in biology is the energy currency of cells?<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 PDP<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 DTP<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 ATP<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 ADP<\/p>\n

    Answer: c)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0The process of releasing energy from food is called respiration. The energy is stored in the form of ATP (Adenosine tri phosphate) in the body cells which is used for various purposes like contraction of muscles, conduction of nerve impulses, synthesis of proteins and many other activities related to the functioning of cells. Therefore, ATP is known as the energy currency of cells.<\/p>\n

    10. In the stem of a plant respiration and breathing takes place through:<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Lenticels<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 Stomata<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Root hair<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 Air tubes<\/p>\n

    Answer: a)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0In woody stems of plants or trees have lenticels for the exchange of respiratory gases.<\/p>\n

    \n

    11. Which animal has three-chambered heart?<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Pigeon<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 Lizard<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Fish<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 Lion<\/p>\n

    Answer: b)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0Lizard has three-chambered heart. Except crocodilians all the reptiles have three-chambered heart. Crocodiles have four-chambered heart. Pigeons have four-chambered heart. Fish have two-chambered heart. Lion have four-chambered heart. Birds and mammals have four chambered heart i.e. 2 atria and 2 ventricles. Three-chambered consists of 2 atria and 1 ventricle and two-chambered heart consists of 1 atria and 1 ventricle.<\/p>\n

    12. Name the ions present in Sodium Oxide compound?<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Sodium ions<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 Oxide ions<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Both A and B<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 Neither A nor B<\/p>\n

    Answer: c)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0The ions present in Sodium Oxide compound are: Sodium ions and oxide ions.<\/p>\n

    13. Which of the following are electrovalent compounds?<\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 Copper sulphate<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 Calcium nitrate<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 Magnesium oxide<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 All of the above<\/p>\n

    Answer: d)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0Electrovalent compound are ionic compounds and so all the options given in the question forms ionic bond.<\/p>\n

    14. What is the electronic configuration of calcium ion (Ca2+<\/sup>)<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 2,8<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 2,8,2<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 2,8,4<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 2,8,8<\/p>\n

    Answer: d)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0The atomic number of calcium is 20 so its electronic configuration is 2,8,8,2 and so has 2 electrons in the outer most shell. Therefore to form calcium ion (Ca2+<\/sup>), calcium will lose 2 electrons and its configuration becomes 2,8,8.<\/p>\n

    15. Lunar Eclipse occur:<\/strong><\/p>\n

    a)\u00a0\u00a0\u00a0\u00a0\u00a0 When Sun is between Earth and Moon<\/p>\n

    b)\u00a0\u00a0\u00a0\u00a0\u00a0 When Earth is between Sun and Moon<\/p>\n

    c)\u00a0\u00a0\u00a0\u00a0\u00a0 When Moon is between Earth and Sun<\/p>\n

    d)\u00a0\u00a0\u00a0\u00a0\u00a0 When Earth is between Sun and other celestial bodies<\/p>\n

    Answer: b)<\/strong><\/p>\n

    Explanation:<\/strong>\u00a0A lunar eclipse occurs when Earth crosses between the moon and the sun, which casts a shadow of Earth onto the moon.<\/p>\n

    \n

    16. Select the correct option matching together about Earth shadows:<\/strong><\/p>\n

      \n
    1. Umbra \u2013 darker, central part<\/li>\n
    2. Penumbra \u2013 the outer part<\/li>\n
    3. Antumbra \u2013 partly shaded area beyond the umbra<\/li>\n<\/ol>\n

      Correct Options are:<\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 Only 1 and 2<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 Only 2 and 3<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Only 1<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 All 1, 2 and 3<\/p>\n

      Answer: d)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0Shadow of earth is divided into three parts:<\/p>\n

      Umbra is the innermost and darkest part of the shadow and an observer experiences total eclipse. Penumbra is the region in which only a portion of the light source is blocked by the body. Therefore, an observer experiences partial eclipse. Antumbra is the lighter area of a shadow that appears beyond umbra. An observer experiences annular eclipse.<\/p>\n

      17. What is Solar Eclipse?<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 When moon comes in between Earth and Sun<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 When Earth comes in between Moon and Sun<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 When Sun comes in between Earth and Moon<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 When Sun rays does not reach Earth.<\/p>\n

      Answer: a)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0When the moon orbits Earth, it moves between the sun and Earth. When this happens, the moon blocks the light of the sun from reaching Earth. During a solar eclipse, the moon casts a shadow onto Earth.<\/p>\n

      18. Transportation of food in plants takes place through:<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 Xylem<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 Phloem<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Companion cells<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 Tracheids<\/p>\n

      Answer: b)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0Plants have two tissues that help in transportation. Xylem transports water and solutes from the roots to the leaves while phloem transports food from the leaves to the rest of the plant.<\/p>\n

      19. Which salt is used as a raw material for making a large number of useful chemicals in industry?<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 Sodium Chloride<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 Ammonium Hydroxide<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Ammonium Chloride<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 Sodium Nitrate<\/p>\n

      Answer: a)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0Common Salt that is Sodium Chloride is used as a raw material for making a large number of useful chemicals in industry.<\/p>\n

      20. After wound or cut in a body blood coagulates through:<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 WBC<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 RBC<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Platelets<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 Plasma<\/p>\n

      Answer: c)<\/strong>\u00a0\u00a0\u00a0\u00a0\u00a0<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0After wound or cut in a body it starts to bleed. But within few seconds or minutes blood cells start to clump together and clot, preventing the further blood loss. These clots are created by a type of blood cell called platelet.<\/p>\n

      21. Name the salt when on dissolving in water give an acidic solution?<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 Potassium Chloride<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 Ammonium Chloride<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Sodium Carbonate<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 Sodium Acetate<\/p>\n

      Answer: b)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0Ammonium Chloride salt on dissolving in water gives an acidic solution.<\/p>\n

      22. When the same pattern of solar eclipse repeats every 18 years 11 days 8 hours are known as:<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 Nodes cycle<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 Saros cycle<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Saras cycle<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 Payan cycle<\/p>\n

      Answer: b)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0After one saros cycle of 18 years 11days 8 hours, the pattern of eclipses repeats.<\/p>\n

      23. Bleaching powder is formed by treating chlorine with…….<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 Calcium Hydroxide<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 Potassium Hydrogen carbonate<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Magnesium Hydroxide<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 None of the above<\/p>\n

      Answer: a)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0Bleaching powder is formed by treating chlorine with calcium Hydroxide.<\/p>\n

      24. What do you mean by Blood Moon?<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 It is total solar eclipse.<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 It is partial lunar eclipse with red glow<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 It is total lunar eclipse with deep red glow<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 None of the above<\/p>\n

      Answer: c)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0A Total Lunar Eclipse can get a deep red glow and is sometimes called a Blood Moon.<\/p>\n

      25. When blood is forced into the artery, wave like expansion takes place is called:<\/strong><\/p>\n

      a)\u00a0\u00a0\u00a0\u00a0\u00a0 Heart beat<\/p>\n

      b)\u00a0\u00a0\u00a0\u00a0\u00a0 Pulse<\/p>\n

      c)\u00a0\u00a0\u00a0\u00a0\u00a0 Flow<\/p>\n

      d)\u00a0\u00a0\u00a0\u00a0\u00a0 Ticking<\/p>\n

      Answer: b)<\/strong><\/p>\n

      Explanation:<\/strong>\u00a0The expansion of an artery each time the blood is forced into it is called pulse. The pulse rate of an adult person while resting is 70 to 72 per minute.<\/p>\n

      Click here to attempt a free RRB NTPC mock tests to ace your Preparations<\/strong><\/a><\/p>\n

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          General Science is a very important part of various Railway Exams like RRB NTPC, RRB Group D, RRB JE, etc. In this section, basic questions on various sections of the General Science syllabus like Physics, Chemistry, Biology are asked. We will help you in preparation by providing you list of \u00a0General Science Questions for RRB […]<\/p>\n","protected":false},"author":39,"featured_media":11420709,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[802,146,799],"tags":[],"class_list":["post-11419241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-rrb","category-rrb-ntpc"],"acf":[],"yoast_head":"\nGeneral Science Questions for RRB NTPC 2020 - Entri Blog<\/title>\n<meta name=\"description\" content=\"General Science is an important part of various Railway Exams like RRB NTPC, JE etc.Here we will discuss about General Science Questions for RRB NTPC 2020.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/entri.app\/blog\/general-science-questions-for-rrb-ntpc\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"General Science Questions for RRB NTPC 2020 - 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