{"id":42854,"date":"2020-09-23T17:03:12","date_gmt":"2020-09-23T11:33:12","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=42854"},"modified":"2020-09-23T17:03:12","modified_gmt":"2020-09-23T11:33:12","slug":"rrb-ntpc-science-questions-pdf","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/rrb-ntpc-science-questions-pdf\/","title":{"rendered":"RRB NTPC Science Questions PDF"},"content":{"rendered":"

RRB NTPC Science Questions PDF<\/strong><\/span><\/h1>\n

Download RRB NTPC Top-15 Science Questions PDF. Questions based on asked questions in previous exam papers very important for the Railway NTPC exam.<\/p>\n

Download RRB NTPC Science Questions PDF <\/a><\/p>\n

Take a free mock test for RRB NTPC<\/a><\/p>\n

Download RRB NTPC Previous Papers PDF<\/a><\/p>\n\n

Question 1:\u00a0<\/b>In a hydro-power plant, which energy is converted into electrical energy ?<\/p>\n

a)\u00a0The potential energy of water stored in a tall reservoir<\/p>\n

b)\u00a0The chemical energy of water<\/p>\n

c)\u00a0The heat energy of water<\/p>\n

d)\u00a0The sound energy of water flow<\/p>\n

Question 2:\u00a0<\/b>The world’s first holographic screen phone has a holographic screen that produces 3-D visuals without needing special glasses.<\/p>\n

a)\u00a0Hydrogen One<\/p>\n

b)\u00a0Nitrogen One<\/p>\n

c)\u00a0Carbon One<\/p>\n

d)\u00a0Oxygen One<\/p>\n

Question 3:\u00a0<\/b>Scientist’s plan to build an elevator between Earth and the Moonto cut down ontherocket fuel needed for a trip between the Earth and the Moonis known as:<\/p>\n

a)\u00a0Space Line<\/p>\n

b)\u00a0Space Lift<\/p>\n

c)\u00a0Space Elevator<\/p>\n

d)\u00a0Space Bridge<\/p>\n

Question 4:\u00a0<\/b>Why is nichrome alloy used for making heating elements of electrical appliances such as electric iron, toaster, etc.?<\/p>\n

a)\u00a0All the options<\/p>\n

b)\u00a0Nichrome does not burn easily<\/p>\n

c)\u00a0Nichrome does not undergo oxidation easily<\/p>\n

d)\u00a0Nichrome has high resistivity<\/p>\n

Question 5:\u00a0<\/b>Which of the following sounds is pleasant to hear and is of rich quality?<\/p>\n

a)\u00a0Low pitch<\/p>\n

b)\u00a0Noise<\/p>\n

c)\u00a0High pitch<\/p>\n

d)\u00a0Music<\/p>\n

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RRB NTPC Previous Papers [Download PDF]<\/a><\/p>\n

Question 6:\u00a0<\/b>Which gas is used in LPG ?<\/p>\n

Question 7:\u00a0<\/b>Which device changes the alternating e.m.f. generated by the D.C. Generator in its armature coil to D.C. ?<\/p>\n

a)\u00a0Slip ring<\/p>\n

b)\u00a0Rectifier<\/p>\n

c)\u00a0Commutator<\/p>\n

d)\u00a0None of these<\/p>\n

Question 8:\u00a0<\/b>Boyles law states that :<\/p>\n

a)\u00a0The pressure of a gas varies directly with temperature at constant volume i.e. $P \\propto T$.<\/p>\n

b)\u00a0The product of pressure and volume of a given mass of a gas is constant at constant temperature i.e. PV= constant.<\/p>\n

c)\u00a0\u00a0The volume of a gas varies directly with temperature at constant pressure i.e. $V \\propto T$.<\/p>\n

d)\u00a0The pressure of a gas varies directly with volume at constant temperature i.e. $P \\propto V$.<\/p>\n

Question 9:\u00a0<\/b>The thermal diffusivity of a substance is given by :<\/p>\n

a)\u00a0$\\frac{K_p}{C}$<\/p>\n

b)\u00a0$\\frac{K}{p^C}$<\/p>\n

c)\u00a0$\\frac{KC}{p}$<\/p>\n

d)\u00a0$\\frac{p^C}{K}$<\/p>\n

Question 10:\u00a0<\/b>The scientist who invented the lift is?<\/p>\n

a)\u00a0Elisha Otis<\/p>\n

b)\u00a0Edison<\/p>\n

c)\u00a0William Gas Cogin<\/p>\n

d)\u00a0None of these<\/p>\n

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Download General Science Notes PDF<\/a><\/p>\n

Question 11:\u00a0<\/b>What is the Green Color in the Fireworks?<\/p>\n

Question 12:\u00a0<\/b>Burning of fossil fuels causes increased amounts of carbon dioxide in atmosphere and what is the name of the harmful effect caused due to this?<\/p>\n

a)\u00a0Greenhouse effect<\/p>\n

b)\u00a0Chemical effect<\/p>\n

c)\u00a0Carbon effect<\/p>\n

d)\u00a0Pollution effect<\/p>\n

Question 13:\u00a0<\/b>Which of the following works on the principle of \u201ctotal internal reflection\u201d?<\/p>\n

a)\u00a0mirror<\/p>\n

b)\u00a0camera<\/p>\n

c)\u00a0modem<\/p>\n

d)\u00a0optical fiber<\/p>\n

Question 14:\u00a0<\/b>
\nCryogenic engines are used in<\/p>\n

a)\u00a0Atomic reactors<\/p>\n

b)\u00a0Rockets<\/p>\n

c)\u00a0Defrost Refrigerators<\/p>\n

d)\u00a0Doing research connected with superconductivity<\/p>\n

Question 15:\u00a0<\/b>Which is the most ductile metal?<\/p>\n

FREE RRB NTPC YOUTUBE VIDEOS<\/a><\/p>\n

Answers & Solutions:<\/strong><\/span><\/p>\n

1)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

2)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

3)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

4)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

5)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

6)\u00a0Answer:\u00a0Butane and Propane<\/b><\/p>\n

7)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

8)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

9)\u00a0Answer\u00a0(E)<\/strong><\/p>\n

10)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

The scientist who invented the lift is Elisha Otis<\/p>\n

11)\u00a0Answer:\u00a0Barium<\/b><\/p>\n

12)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

13)\u00a0Answer\u00a0(D)<\/strong><\/p>\n

14)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

15)\u00a0Answer:\u00a0Platinum<\/b><\/p>\n

DOWNLOAD APP FOR RRB FREE MOCKS<\/a><\/p>\n\n

We hope this Science Questions pdf for RRB NTPC exam will be highly useful for your Preparation.<\/p>\n","protected":false},"excerpt":{"rendered":"

RRB NTPC Science Questions PDF Download RRB NTPC Top-15 Science Questions PDF. Questions based on asked questions in previous exam papers very important for the Railway NTPC exam. Download RRB NTPC Previous Papers PDF Question 1:\u00a0In a hydro-power plant, which energy is converted into electrical energy ? a)\u00a0The potential energy of water stored in a […]<\/p>\n","protected":false},"author":41,"featured_media":42865,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[3167,125,513,31,1679,1605,1603],"tags":[4117,1593,4191],"class_list":{"0":"post-42854","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-downloads-en","8":"category-featured","9":"category-general-science","10":"category-railways","11":"category-rrb-group-d","12":"category-rrb-je","13":"category-rrb-ntpc","14":"tag-railway-exams","15":"tag-rrb-ntpc","16":"tag-science"},"better_featured_image":{"id":42865,"alt_text":"RRB NTPC Science Questions PDF","caption":"RRB NTPC Science Questions 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