Most Important Questions For RRB Group D Exam https://www.testwale.com/test-series/14/rrb-group-d/ Getting job in the railways is really hard these days and a matter of pride. The exam of RRB Group D is going to be conducted from 17th August 2022. Many candidates are working so hard for the exam to get this prestigious job in the Indian Railways. If you are one of them, you should read these below-mentioned questions which will help you to know the difficulty level of the examination. 1. Which polymer is used in making floor tiles? Ans. Poly vinyl chloride 2. Where is the headquarters of the Board of Control for Cricket in India? Ans. Mumbai 3. What is the layer on the magnetic disc? Ans. Iron oxide 4. Which writ is issued to protect personal liberty? Ans. Habeas Corpus - It is a command to produce the prisoner in front of the body in a physical court within 24 hours. 5. Bannerghatta Biological Park (Bangalore) is famous for? Ans. For Butterfly (India's first butterfly garden) 6. What is the chemical name of Vitamin B3? Ans. Niacin 7. When did the first battle of Panipat take place? Ans. On 21 April 1526. (Between Babur and Ibrahim Lodi - Babur won). 8. In which region is the ozone layer found? Ans. In the stratosphere - [the unit of measurement of the ozone layer is the Dobson] 9. Which is the 193rd country of UNO? Ans. South Sudan 10. On which model was the first five year plan based? Ans. Harald-Domar model (related to agricultural development)