{"id":33380,"date":"2019-08-12T13:49:25","date_gmt":"2019-08-12T08:19:25","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=33380"},"modified":"2019-08-12T14:51:45","modified_gmt":"2019-08-12T09:21:45","slug":"top-50-rrb-ntpc-science-and-technology-questions-part-2-pdf","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/top-50-rrb-ntpc-science-and-technology-questions-part-2-pdf\/","title":{"rendered":"Top-50 RRB NTPC Science And Technology  Questions Part-2 PDF"},"content":{"rendered":"<h1><span style=\"font-size: 18pt;\"><strong>Top-50 RRB NTPC Science And Technology Questions Part-2 PDF<\/strong><\/span><\/h1>\n<p>Download Top-50 Expected science and technology questions and answers for RRB NTPC Stage-1 exam. Go through the video of Repeatedly asked and most important RRB NTPC Politics and Governance questions. These questions are based on previous year questions in Railways and other Govt exams<\/p>\n<!-- Error, Advert is not available at this time due to schedule\/geolocation restrictions! -->\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/downloads\/5859\" target=\"_blank\" class=\"btn btn-danger  download\">Download RRB NTPC Science and Technology Questions Part &#8211; II PDF<\/a><\/p>\n<p><strong>Practice:<\/strong><\/p>\n<p>Take a <a href=\"https:\/\/cracku.in\/rrb-ntpc-mock-test\" target=\"_blank\" rel=\"noopener\">free mock test for RRB NTPC<\/a><\/p>\n<p>Practice 4500+\u00a0<a href=\"https:\/\/cracku.in\/rrb-study-material\" target=\"_blank\" rel=\"noopener\">Solved Questions for RRB NTPC<\/a><\/p>\n<p><strong>Download:<\/strong><\/p>\n<p>Download <a href=\"https:\/\/cracku.in\/railways-ntpc-previous-papers\" target=\"_blank\" rel=\"noopener\">RRB NTPC Previous Papers PDF<\/a><\/p>\n<p>Download <a href=\"https:\/\/cracku.in\/blog\/rrb-ntpc-study-material-important-questions-pdf\/\" target=\"_blank\" rel=\"noopener\">RRB NTPC Study Material PDF<\/a><br \/>\n<iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/oRHZD9hXXtI\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3><strong>Read This Post In <a href=\"https:\/\/cracku.in\/blog\/te\/top-50-rrb-ntpc-science-and-technology-questions-in-telugu-part-2-pdf\/\">Telugu<\/a>\u00a0<\/strong><\/h3>\n<p><b>Question 1:\u00a0<\/b>Echo is heard when the reflecting surface is<\/p>\n<p>a)\u00a0Of Less Volume<\/p>\n<p>b)\u00a0Of Large Area<\/p>\n<p>c)\u00a0Of Less Area<\/p>\n<p>d)\u00a0Of Large Volume<\/p>\n<p><b>Question 2:\u00a0<\/b>The Swine Flu virus is denoted by<\/p>\n<p>a)\u00a0$H_{1}N_{5}$<\/p>\n<p>b)\u00a0$N_{1}H_{2}$<\/p>\n<p>c)\u00a0$H_{1}N_{1}$<\/p>\n<p>d)\u00a0$H_{5}N_{1}$<\/p>\n<p><b>Question 3:\u00a0<\/b>For the Implantation of Ovum in the ovaries, the hormone produced is<\/p>\n<p>a)\u00a0Oxytocin<\/p>\n<p>b)\u00a0Prolactin<\/p>\n<p>c)\u00a0Progesterone<\/p>\n<p>d)\u00a0None of these<\/p>\n<p><b>Question 4:\u00a0<\/b>If the length of a simple pendulum is doubled, its time period will<\/p>\n<p>a)\u00a0Increase<\/p>\n<p>b)\u00a0Decrease<\/p>\n<p>c)\u00a0Remain Constant<\/p>\n<p>d)\u00a0None of these<\/p>\n<p><b>Question 5:\u00a0<\/b>Which type of agriculture in India is called eco &#8211; friendly ?<\/p>\n<p>a)\u00a0Carbonic Cultivation<\/p>\n<p>b)\u00a0High yield agriculture<\/p>\n<p>c)\u00a0Shift Cultivation<\/p>\n<p>d)\u00a0Glass house agriculture<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/rrb-ntpc-mock-test\" target=\"_blank\" class=\"btn btn-danger \">RRB NTPC Free Mock Test<\/a><\/p>\n<!-- Error, Advert is not available at this time due to schedule\/geolocation restrictions! -->\n<p><b>Question 6:\u00a0<\/b>The process of manufacturing of soap is called<\/p>\n<p>a)\u00a0Ion Exchange<\/p>\n<p>b)\u00a0Alphonation<\/p>\n<p>c)\u00a0Saponification<\/p>\n<p>d)\u00a0Steam Distillation<\/p>\n<p><b>Question 7:\u00a0<\/b>Enzymes are &#8230;&#8230;&#8230;.. that act as catalysts within the living cells.<\/p>\n<p>a)\u00a0vitamins<\/p>\n<p>b)\u00a0proteins<\/p>\n<p>c)\u00a0carbohydrates<\/p>\n<p>d)\u00a0calcium<\/p>\n<p><b>Question 8:\u00a0<\/b>Which electrode acts as anode in a Daniell cell?<\/p>\n<p>a)\u00a0Zinc<\/p>\n<p>b)\u00a0Copper<\/p>\n<p>c)\u00a0Aluminium<\/p>\n<p>d)\u00a0Carbon<\/p>\n<p><b>Question 9:\u00a0<\/b>Which cell organelle has its own DNA?<\/p>\n<p>a)\u00a0Mitochondria<\/p>\n<p>b)\u00a0Lysosomes<\/p>\n<p>c)\u00a0Centrosomes<\/p>\n<p>d)\u00a0Plastids<\/p>\n<p><b>Question 10:\u00a0<\/b>The metal which can be deformed permanently by heat and pressure is called a<\/p>\n<p>a)\u00a0Thermoplastic<\/p>\n<p>b)\u00a0Thermoset<\/p>\n<p>c)\u00a0Chemical compound<\/p>\n<p>d)\u00a0Polymer<\/p>\n<p><b>Question 11:\u00a0<\/b>In the field of information and communication technology, what is the full form of FDD ?<\/p>\n<p>a)\u00a0Folder Disk Drive<\/p>\n<p>b)\u00a0Floppy Disk Drive<\/p>\n<p>c)\u00a0Folder Data Drive<\/p>\n<p>d)\u00a0Floppy Data Drive<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/railways-ntpc-previous-papers\" target=\"_blank\" class=\"btn btn-primary \">RRB NTPC Previous Papers [Download PDF]<\/a><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/rrb-study-material\" target=\"_blank\" class=\"btn btn-danger \">RRB NTPC Study Material &#8211; 4500+ Questions<\/a><\/p>\n<p><b>Question 12:\u00a0<\/b>&#8230;&#8230;&#8230;.. is called \u2018the power house of the cell\u2019.<\/p>\n<p>a)\u00a0Cell membrane<\/p>\n<p>b)\u00a0Nucleus<\/p>\n<p>c)\u00a0Mitochondria<\/p>\n<p>d)\u00a0Golgi bodies<\/p>\n<p><b>Question 13:\u00a0<\/b>The Bacille Calmette-Guerin vaccine (popularly called BCG vaccine) is a vaccine to prevent which of these diseases?<\/p>\n<p>a)\u00a0Polio<\/p>\n<p>b)\u00a0Tuberculosis<\/p>\n<p>c)\u00a0Jaundice<\/p>\n<p>d)\u00a0Typhoid<\/p>\n<p><b>Question 14:\u00a0<\/b>Mushrooms and other micro organisms feed on dead plant and animal tissues and convert them into &#8230;&#8230;&#8230;..<\/p>\n<p>a)\u00a0Sod<\/p>\n<p>b)\u00a0Peat<\/p>\n<p>c)\u00a0Clod<\/p>\n<p>d)\u00a0Humus<\/p>\n<p><b>Question 15:\u00a0<\/b>Which of the following animals hibernates?<\/p>\n<p>a)\u00a0Tiger<\/p>\n<p>b)\u00a0Bat<\/p>\n<p>c)\u00a0Jackal<\/p>\n<p>d)\u00a0Deer<\/p>\n<p><b>Question 16:\u00a0<\/b>Name the tissue that transports food to various parts of a plant.<\/p>\n<p>a)\u00a0Parenchyma<\/p>\n<p>b)\u00a0Sclerenchyma<\/p>\n<p>c)\u00a0Xylem<\/p>\n<p>d)\u00a0Phloem<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/rrb-online-test\" target=\"_blank\" class=\"btn btn-danger \"> Daily Free RRB Online Tests for RRB Exams<\/a><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/railways-ntpc-previous-papers\" target=\"_blank\" class=\"btn btn-primary \">RRB NTPC Previous Papers [Download PDF]<\/a><\/p>\n<!-- Error, Advert is not available at this time due to schedule\/geolocation restrictions! -->\n<p><b>Question 17:\u00a0<\/b>Which element is used for making solar cells?<\/p>\n<p>a)\u00a0Silicon<\/p>\n<p>b)\u00a0Sodium<\/p>\n<p>c)\u00a0Silver<\/p>\n<p>d)\u00a0Sulphur<\/p>\n<p><b>Question 18:\u00a0<\/b>Nettle plants which grow in the wild protect themselves using:<\/p>\n<p>a)\u00a0hair<\/p>\n<p>b)\u00a0thorns<\/p>\n<p>c)\u00a0smell<\/p>\n<p>d)\u00a0Spray<\/p>\n<p><b>Question 19:\u00a0<\/b>Histology is the study of :<\/p>\n<p>a)\u00a0Bones<\/p>\n<p>b)\u00a0Coins<\/p>\n<p>c)\u00a0Tissues<\/p>\n<p>d)\u00a0History<\/p>\n<p><b>Question 20:\u00a0<\/b>Small-pox is a deadly and highly contagious<\/p>\n<p>a)\u00a0Bacterial disease<\/p>\n<p>b)\u00a0Viral disease<\/p>\n<p>c)\u00a0fungal disease<\/p>\n<p>d)\u00a0Vitamin deficiency disease<\/p>\n<p><b>Question 21:\u00a0<\/b>VU2SAT is also called as?<\/p>\n<p>a)\u00a0EDUSAT<\/p>\n<p>b)\u00a0HAMSAT<\/p>\n<p>c)\u00a0CARTOSAT &#8211; 2<\/p>\n<p>d)\u00a0METSAT<\/p>\n<p><b>Question 22:\u00a0<\/b>The first Indian communication satellite was<\/p>\n<p>a)\u00a0Aryabhatta<\/p>\n<p>b)\u00a0Bhaskara-I<\/p>\n<p>c)\u00a0Apple<\/p>\n<p>d)\u00a0Chandrayaan-I<\/p>\n<p><b>Question 23:\u00a0<\/b>INSAT-3D the meteorological Satellite with advanced weather monitoring payloads was launched in<\/p>\n<p>a)\u00a02012<\/p>\n<p>b)\u00a02013<\/p>\n<p>c)\u00a02014<\/p>\n<p>d)\u00a02015<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/railways-ntpc-previous-papers\" target=\"_blank\" class=\"btn btn-primary \">RRB NTPC Previous Papers [Download PDF]<\/a><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/blog\/rrb-ntpc-study-material-important-questions-pdf\/\" target=\"_blank\" class=\"btn btn-danger \">RRB NTPC Study Material (Download PDF)<\/a><\/p>\n<p><b>Question 24:\u00a0<\/b>_____ gases trap heat in the atmosphere which makes the Earth warmer, causing global warming.<\/p>\n<p>a)\u00a0Greenhouse<\/p>\n<p>b)\u00a0Nobel<\/p>\n<p>c)\u00a0Elemental<\/p>\n<p>d)\u00a0Compound<\/p>\n<p><b>Question 25:\u00a0<\/b>During photosynthesis, green plants use energy from sunlight to synthesise _____ from carbon dioxide and water<\/p>\n<p>a)\u00a0fructose<\/p>\n<p>b)\u00a0sucrose<\/p>\n<p>c)\u00a0galactose<\/p>\n<p>d)\u00a0glucose<\/p>\n<p><b>Question 26:\u00a0<\/b>Which cell organelle does the function muscular contraction in animals?<\/p>\n<p>a)\u00a0Ribosome<\/p>\n<p>b)\u00a0Centrosome<\/p>\n<p>c)\u00a0Vacoule<\/p>\n<p>d)\u00a0Myofibril<\/p>\n<p><b>Question 27:\u00a0<\/b>The green plants in a terrestrial ecosystem capture about &#8230;&#8230;&#8230;. of the energy of sunlight.<\/p>\n<p>a)\u00a04%<\/p>\n<p>b)\u00a02%<\/p>\n<p>c)\u00a01%<\/p>\n<p>d)\u00a03%<\/p>\n<p><b>Question 28:\u00a0<\/b>In humans, each cell normally contains &#8230;&#8230;&#8230;.. pairs of chromosomes.<\/p>\n<p>a)\u00a022<\/p>\n<p>b)\u00a024<\/p>\n<p>c)\u00a023<\/p>\n<p>d)\u00a021<\/p>\n<p><b>Question 29:\u00a0<\/b>Which non-nucleated cells in plants transport nutrients?<\/p>\n<p>a)\u00a0Sieve cells<\/p>\n<p>b)\u00a0Guard cells<\/p>\n<p>c)\u00a0Transfer cells<\/p>\n<p>d)\u00a0Epidermal cells<\/p>\n<p><b>Question 30:\u00a0<\/b>&#8230;&#8230;&#8230;&#8230; are called suicidal bags of the cell.<\/p>\n<p>a)\u00a0Ribosomes<\/p>\n<p>b)\u00a0Golgi Apparatus<\/p>\n<p>c)\u00a0Lysosomes<\/p>\n<p>d)\u00a0Mitochondria<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/blog\/general-science-questions-answers-competitive-exams-pdf-mcq-quiz\/\" target=\"_blank\" class=\"btn btn-info \">Download General Science Notes PDF<\/a><\/p>\n<!-- Error, Advert is not available at this time due to schedule\/geolocation restrictions! -->\n<p><b>Question 31:\u00a0<\/b>Which of the following are flowerless plants that produce cones and seeds in which seeds are not encased within an ovary?<\/p>\n<p>a)\u00a0Bryophytes<\/p>\n<p>b)\u00a0Gymnosperms<\/p>\n<p>c)\u00a0Hydrophytes<\/p>\n<p>d)\u00a0Angiosperms<\/p>\n<p><b>Question 32:\u00a0<\/b>The name of the space shuttle, which carried the Indian born Kalpana Chawla into space was<\/p>\n<p>a)\u00a0Columbia<\/p>\n<p>b)\u00a0Challenger<\/p>\n<p>c)\u00a0Atlantis<\/p>\n<p>d)\u00a0Endeavour<\/p>\n<p><b>Question 33:\u00a0<\/b>The following metal is used in storage batteries&#8211;<\/p>\n<p>a)\u00a0Iron<\/p>\n<p>b)\u00a0Copper<\/p>\n<p>c)\u00a0Zinc<\/p>\n<p>d)\u00a0Lead<\/p>\n<p><b>Question 34:\u00a0<\/b>Coins are studied in which of the following subjects ?<\/p>\n<p>a)\u00a0Archaeology<\/p>\n<p>b)\u00a0Historiography<\/p>\n<p>c)\u00a0Numismatics<\/p>\n<p>d)\u00a0Epigraphy<\/p>\n<p><b>Question 35:\u00a0<\/b>Which of the following human hormones contains iodine ?<\/p>\n<p>a)\u00a0Oxytocin<\/p>\n<p>b)\u00a0Progesterone<\/p>\n<p>c)\u00a0Adrenalin<\/p>\n<p>d)\u00a0Thyroxine<\/p>\n<p><b>Question 36:\u00a0<\/b>A body is floating in water at 4\u00b0C If temperature reaches 100\u00b0C then the body will ?<\/p>\n<p>a)\u00a0sink fully<\/p>\n<p>b)\u00a0float freely<\/p>\n<p>c)\u00a0have some more part of itself submerged under water<\/p>\n<p>d)\u00a0have no change in its position<\/p>\n<p><b>Question 37:\u00a0<\/b>How much water is contained in our body by mass?<\/p>\n<p>a)\u00a065%<\/p>\n<p>b)\u00a070%<\/p>\n<p>c)\u00a060%<\/p>\n<p>d)\u00a0None of these<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/rrb-online-test\" target=\"_blank\" class=\"btn btn-danger \"> Daily Free RRB Online Tests for RRB Exams<\/a><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/rrb-ntpc-mock-test\" target=\"_blank\" class=\"btn btn-primary \">RRB NTPC Free Mock Test<\/a><\/p>\n<p><b>Question 38:\u00a0<\/b>When sun-light passe through a glass prism, which of the following colours refracts the most?<\/p>\n<p>a)\u00a0Blue<\/p>\n<p>b)\u00a0Red<\/p>\n<p>c)\u00a0Orange<\/p>\n<p>d)\u00a0Green<\/p>\n<p><b>Question 39:\u00a0<\/b>Colour blindness is related to<\/p>\n<p>a)\u00a0heredity<\/p>\n<p>b)\u00a0blood pressure<\/p>\n<p>c)\u00a0digestive system<\/p>\n<p>d)\u00a0respiratory system<\/p>\n<p><b>Question 40:\u00a0<\/b>The angle subtended at the center of a circle by a major arc will be<\/p>\n<p>a)\u00a0Right Angle<\/p>\n<p>b)\u00a0Acute Angle<\/p>\n<p>c)\u00a0Obtuse Angle<\/p>\n<p>d)\u00a0Complementary Angle<\/p>\n<p><b>Question 41:\u00a0<\/b>The model of DNA structure was founded by<\/p>\n<p>a)\u00a0Priestley<\/p>\n<p>b)\u00a0Morgan<\/p>\n<p>c)\u00a0Hargobind Khurana<\/p>\n<p>d)\u00a0Watson and Crick<\/p>\n<p><b>Question 42:\u00a0<\/b>Which of the following gases is chiefly found in biogas ?<\/p>\n<p>a)\u00a0Nitrogen<\/p>\n<p>b)\u00a0Hydrogen<\/p>\n<p>c)\u00a0Methane<\/p>\n<p>d)\u00a0Ethane<\/p>\n<p><b>Question 43:\u00a0<\/b>Which of the following crops does need water during sowing it ?<\/p>\n<p>a)\u00a0Wheat<\/p>\n<p>b)\u00a0Barley<\/p>\n<p>c)\u00a0Paddy<\/p>\n<p>d)\u00a0Maize<\/p>\n<p><b>Question 44:\u00a0<\/b>Which of the following soils is suitable for the production of cotton<\/p>\n<p>a)\u00a0Laterite Soil<\/p>\n<p>b)\u00a0Red Soil<\/p>\n<p>c)\u00a0Black Soil<\/p>\n<p>d)\u00a0Alluvial Soil<\/p>\n<p><b>Question 45:\u00a0<\/b>Which is India&#8217;s first defense satellite?<\/p>\n<p>a)\u00a0INSAT 2B<\/p>\n<p>b)\u00a0GSAT-7<\/p>\n<p>c)\u00a0GSAT 6<\/p>\n<p>d)\u00a0IRS-1A<\/p>\n<p><b>Question 46:\u00a0<\/b>The other term for genetic engineering is:<\/p>\n<p>a)\u00a0DNA fingerprinting<\/p>\n<p>b)\u00a0DNA editing<\/p>\n<p>c)\u00a0Recombinant DNA technology<\/p>\n<p>d)\u00a0Gene therapy<\/p>\n<p><b>Question 47:\u00a0<\/b>What is the technology used in a compact disc?<\/p>\n<p>a)\u00a0Electrical<\/p>\n<p>b)\u00a0Laser<\/p>\n<p>c)\u00a0Electro magnetic<\/p>\n<p>d)\u00a0Aeronautical<\/p>\n<p><b>Question 48:\u00a0<\/b>Who designed the world\u2019s lightest satellite \u2018Kalamsat\u2019, which NASA launched and set a<br \/>\nnew world record?<\/p>\n<p>a)\u00a0Riyaz Sharook<\/p>\n<p>b)\u00a0Shawna Pandya<\/p>\n<p>c)\u00a0Rifath Sharook<\/p>\n<p>d)\u00a0Madhav Dhekane<\/p>\n<p><b>Question 49:\u00a0<\/b>The waves used in radar systems are _______ waves.<\/p>\n<p>a)\u00a0ultraviolet<\/p>\n<p>b)\u00a0infrared<\/p>\n<p>c)\u00a0micro<\/p>\n<p>d)\u00a0radio<\/p>\n<p><b>Question 50:\u00a0<\/b>The atmosphere of Mars is mostly composed of &#8230;&#8230;&#8230;..<\/p>\n<p>a)\u00a0Ammonia<\/p>\n<p>b)\u00a0Carbon dioxide<\/p>\n<p>c)\u00a0Oxygen<\/p>\n<p>d)\u00a0Hydrogen<\/p>\n<p class=\"text-center\"><a href=\"https:\/\/cracku.in\/rrb-study-material\" target=\"_blank\" class=\"btn btn-info \">RRB NTPC Free Study Material &#8211; 4500 Questions<\/a><\/p>\n<p><span style=\"text-decoration: underline;\"><strong>Answers &amp; Solutions:<\/strong><\/span><\/p>\n<p><strong>1)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>2)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>3)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>4)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>5)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>6)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>7)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>8)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>9)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>10)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>11)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>12)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>13)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>14)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p><strong>15)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>16)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p><strong>17)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>18)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>19)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>20)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>21)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>22)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>23)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>24)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>25)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p><strong>26)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p><strong>27)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>28)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>29)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>30)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>31)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>32)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>33)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p>Lead is most commonly used in storage batteries<\/p>\n<p><strong>34)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>35)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>36)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>37)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>38)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>39)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>40)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>41)\u00a0Answer\u00a0(D)<\/strong><\/p>\n<p><strong>42)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>43)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>44)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>45)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>46)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>47)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p><strong>48)\u00a0Answer\u00a0(A)<\/strong><\/p>\n<p><strong>49)\u00a0Answer\u00a0(C)<\/strong><\/p>\n<p><strong>50)\u00a0Answer\u00a0(B)<\/strong><\/p>\n<p class=\"text-center\"><a href=\"https:\/\/play.google.com\/store\/apps\/details?id=in.cracku.app&amp;hl=en_US\" target=\"_blank\" class=\"btn btn-danger \">DOWNLOAD APP FOR RRB FREE MOCKS<\/a><\/p>\n<p>We hope this very important science and technology Questions will be very helpful to you.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Top-50 RRB NTPC Science And Technology Questions Part-2 PDF Download Top-50 Expected science and technology questions and answers for RRB NTPC Stage-1 exam. Go through the video of Repeatedly asked and most important RRB NTPC Politics and Governance questions. These questions are based on previous year questions in Railways and other Govt exams Practice: Take [&hellip;]<\/p>\n","protected":false},"author":30,"featured_media":33403,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[31,1701,1679,1603],"tags":[1593,2400],"class_list":{"0":"post-33380","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-railways","8":"category-rpf-si-and-constable","9":"category-rrb-group-d","10":"category-rrb-ntpc","11":"tag-rrb-ntpc","12":"tag-rrb-ntpc-science-and-technology-questions-en"},"better_featured_image":{"id":33403,"alt_text":"RRB NTPC science and technology questions","caption":"RRB NTPC  science and technology questions","description":"RRB NTPC  science and technology questions","media_type":"image","media_details":{"width":1280,"height":720,"file":"2019\/08\/RRB-NTPC-.png","sizes":{"thumbnail":{"file":"RRB-NTPC--150x150.png","width":150,"height":150,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--150x150.png"},"medium":{"file":"RRB-NTPC--300x169.png","width":300,"height":169,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--300x169.png"},"medium_large":{"file":"RRB-NTPC--768x432.png","width":768,"height":432,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--768x432.png"},"large":{"file":"RRB-NTPC--1024x576.png","width":1024,"height":576,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--1024x576.png"},"tiny-lazy":{"file":"RRB-NTPC--30x17.png","width":30,"height":17,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--30x17.png"},"td_80x60":{"file":"RRB-NTPC--80x60.png","width":80,"height":60,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--80x60.png"},"td_100x70":{"file":"RRB-NTPC--100x70.png","width":100,"height":70,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--100x70.png"},"td_218x150":{"file":"RRB-NTPC--218x150.png","width":218,"height":150,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--218x150.png"},"td_265x198":{"file":"RRB-NTPC--265x198.png","width":265,"height":198,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--265x198.png"},"td_324x160":{"file":"RRB-NTPC--324x160.png","width":324,"height":160,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--324x160.png"},"td_324x235":{"file":"RRB-NTPC--324x235.png","width":324,"height":235,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--324x235.png"},"td_324x400":{"file":"RRB-NTPC--324x400.png","width":324,"height":400,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--324x400.png"},"td_356x220":{"file":"RRB-NTPC--356x220.png","width":356,"height":220,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--356x220.png"},"td_356x364":{"file":"RRB-NTPC--356x364.png","width":356,"height":364,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--356x364.png"},"td_533x261":{"file":"RRB-NTPC--533x261.png","width":533,"height":261,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--533x261.png"},"td_534x462":{"file":"RRB-NTPC--534x462.png","width":534,"height":462,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--534x462.png"},"td_696x0":{"file":"RRB-NTPC--696x392.png","width":696,"height":392,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--696x392.png"},"td_696x385":{"file":"RRB-NTPC--696x385.png","width":696,"height":385,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--696x385.png"},"td_741x486":{"file":"RRB-NTPC--741x486.png","width":741,"height":486,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--741x486.png"},"td_1068x580":{"file":"RRB-NTPC--1068x580.png","width":1068,"height":580,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--1068x580.png"},"td_1068x0":{"file":"RRB-NTPC--1068x601.png","width":1068,"height":601,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--1068x601.png"},"td_0x420":{"file":"RRB-NTPC--747x420.png","width":747,"height":420,"mime-type":"image\/png","source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC--747x420.png"}},"image_meta":{"aperture":"0","credit":"","camera":"","caption":"","created_timestamp":"0","copyright":"","focal_length":"0","iso":"0","shutter_speed":"0","title":"","orientation":"0"}},"post":33382,"source_url":"https:\/\/cracku.in\/blog\/wp-content\/uploads\/2019\/08\/RRB-NTPC-.png"},"yoast_head":"<!-- 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