36500+ Important MCQs for RAILWAY

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36500+ MCQs for RAILWAY are available here. You can learn these questions for your better preparation. Questions are available with its correct answer. You can check the correct answer of any questions by clicking the option or show answer button.
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📊 Physics
Q. Which of the following statements related to principal quantum number (n) is not correct?
  • (A) Energy of the orbital increases with increase of n
  • (B) Size of an orbital increases with increase of n
  • (C) The shell M is represented by principal quantum number 2
  • (D) Total number of allowed orbitals in Shell K is 1
💬 Discuss
✅ Correct Answer: (C) The shell M is represented by principal quantum number 2

Explanation: Statement 3 is incorrect. The shell M is represented by principal quantum number 3. Size of an orbital increases with increase of principal quantum number ‘n’. The energy of the orbital also increases with increase of n. Total number of allowed orbitals in Shell K is 1.

📊 Chemistry
Q. What will be the number of neutrons in an atom having atomic number 35 and mass number 80?
  • (A) 35
  • (B) 45
  • (C) 55
  • (D) 80
💬 Discuss
✅ Correct Answer: (B) 45

Explanation: The total number of nucleons is termed as mass number (A) of the atom. In this case, mass number is 80. Therefore, sum of the number of neutrons and protons is 80. As atomic number is 35, we know that number of protons is 35. Hence, number of neutrons = 80-35 = 45.

📊 Chemistry
Q. Which of these methods can be used to prevent rancidity?
  • (A) Adding antioxidants to the food
  • (B) Storing food at low temperature
  • (C) Replace the air with nitrogen in the packing material
  • (D) All of the above
💬 Discuss
✅ Correct Answer: (D) All of the above

Explanation: When food containing fats and oils are exposed to the atmosphere, the oxidation of fat and oil occurs, this is called as Rancidity.

📊 Reasoning
Q. A man is facing towards west and turns through 45° clockwise, again 180° clockwise and then turns through 270° anti - clockwise. In which direction is he facing now?
  • (A) West
  • (B) North - West
  • (C) South
  • (D) South - West
💬 Discuss
✅ Correct Answer: (D) South - West
📊 Reasoning
Q. I am facing east. I turn 100° in the clockwise direction and then 145° in the anti - clockwise direction. Which direction am I facing now?
  • (A) East
  • (B) North - East
  • (C) North
  • (D) South - West
💬 Discuss
✅ Correct Answer: (B) North - East
📊 Reasoning
Q. I am standing at the centre of a circular field. I go down south to the edge of the field and then turning left I walk along the boundary of the field equal to three - eighths of its length. Then I turn west and go right across to the opposite point on the boundary. In which direction am I from the starting point?
  • (A) North - West
  • (B) North
  • (C) South - West
  • (D) West
💬 Discuss
✅ Correct Answer: (D) West
📊 Reasoning
Q. Gopal starts from his house towards West. After walking a distance of 30 meters, he turned towards right and walked 20 meters. He then turned left and moving a distance of 10 meters, turned to his left again and walked 40 meters. He now turns to the left and walks 5 meters. Finally he turns to his left. In which direction is he walking now?
  • (A) North
  • (B) South
  • (C) East
  • (D) South - West
💬 Discuss
✅ Correct Answer: (A) North
📊 Reasoning
Q. A rat runs 20' towards East and turns to right, runs 10' and turns to right, runs 9' and again turns to left, runs 5' and then turns to left, runs 12' and finally turns to left and runs 6'. Now, which direction is he now from the starting point?
  • (A) North - East
  • (B) East
  • (C) South - East
  • (D) South
💬 Discuss
✅ Correct Answer: (C) South - East
📊 Computer
Q. In order to use cable for browsing web you will need:
  • (A) A cable modem
  • (B) Network Interface Card (NIC)
  • (C) Both of Above
  • (D) None of These
💬 Discuss
✅ Correct Answer: (C) Both of Above
📊 Computer
Q. Most World Wide Web pages contain commands in the language __________.
  • (A) NIH
  • (B) URL
  • (C) HTML
  • (D) IRC
💬 Discuss
✅ Correct Answer: (C) HTML

Explanation:

HTML (HyperText Markup Language) is the standard language used to create and structure content on the World Wide Web.

  • Most web pages are written in HTML to define elements like headings, paragraphs, links, images, etc.

Other options:

  • (A) NIH – Stands for National Institutes of Health; not related to web page coding.
  • (B) URL – Uniform Resource Locator; it's the address of a web page, not a language.
  • (D) IRC – Internet Relay Chat; a protocol for chat, not web development.

So, the correct answer is HTML.

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