Railway Science (Science and Technology – Miscellaneous)

Total Questions: 27

21. National Technology Day is observed every year to commemorate: [RRB NTPC CBT - I (01/04/2021) Morning]

Correct Answer: (d) Pokhran II
Solution:

National Technology Day - Observed every year in India to commemorate the successful nuclear tests conducted under the codename "Operation Shakti" or Pokhran II (11 May 1998).
Operation Meghdoot - The military operation conducted by the Indian Army to capture the Siachen Glacier (1984).
Operation Blue Star - The military operation conducted by the Indian Army in 1984 to remove militants from the Golden Temple in Amritsar.

22. Which of the following does a Bandicoot refer to? [RRB NTPC CBT - I (01/04/2021) Morning]

Correct Answer: (d) A drainage-cleaning robot
Solution:

Bandicoot - A type of robot designed specifically for cleaning and maintaining drainage systems. It is used to access and clean underground pipes and culverts, reducing the need for manual labor and improving efficiency in drainage maintenance operations. Developed by - Kerala based GenRobotics.

23. Who has produced the indigenous LCA fighter jets Tejas? [RRB NTPC CBT - I (01/04/2021) Morning]

Correct Answer: (a) Hindustan Aeronautics Limited
Solution:

Hindustan Aeronautics Limited - It is an Indian state-owned aerospace and defense company. Founded - 23 December 1940 (as Hindustan Aircraft), 1964 (Hindustan Aeronautics).
Headquarters - Bangalore (Karnataka). Founder - Shri Walchand Hirachand. Bharat Dynamics : Founded - 1970. Headquarters - Hyderabad.

24. Which of the following technologies has been used by China for its ‘Artificial Sun’ ? [RRB NTPC CBT - I (03/04/2021) Morning]

Correct Answer: (d) Nuclear fusion
Solution:

In a fusion reaction, two light nuclei merge to form a single heavy nucleus. Gravitational force - Every object in the universe attracts every other object with a force.
Nuclear fission - The process of splitting of a heavy nucleus into two nuclei of comparable size and release of large energy.
Electromagnetic induction - The phenomenon in which electric current is generated by varying magnetic fields.

25. Which of the following spacecraft was used for orbiting Venus from the year 1990 to 1994 ? [RRB NTPC CBT - I (05/04/2021) Evening]

Correct Answer: (a) Magellan spacecraft
Solution:

Magellan spacecraft (Venus Radar Mapper) - NASA’s mission that was launched in 1989. It arrived at Venus in 1990 and spent the next four years orbiting the planet and mapping its surface using synthetic aperture radar (SAR). It spacecraft successfully completed its mission in 1994.
Hayabusa - Japanese spacecraft that was primarily used for asteroid sample return missions. Atlantis spacecraft - Space Shuttle orbiter that was part of NASA's Space Shuttle program. Dawn spacecraft - NASA mission that explored two asteroids, Vesta and Ceres.

26. Which of the following about the TIFAC (Technology Information, Forecasting and Assessment Council) is INCORRECT? [RRB NTPC CBT - I (26/07/2021) Morning]

Correct Answer: (a) Recovery in manufacturing and construction.
Solution:

TIFAC is an autonomous organization set up in 1988 under the Department of Science & Technology to look ahead in technology domain, assess the technology trajectories, and support innovation by networked actions in select areas of national importance.

27. The Shanti Swarup Bhatnagar Prize is annually awarded for outstanding achievement in which area? [RRB ALP Tier - I (17/08/2018) Evening]

Correct Answer: (b) Science and Technology
Solution:

Shanti Swarup Bhatnagar (SSB) Prize : instituted in the year 1957, in the memory of Dr (Sir) Shanti Swarup Bhatnagar. 1st Winner - KS Krishnan. Shanti Swarup Bhatnagar award consists of a citation, a plaque and a cash prize of ₹5 lakh.
Other Science Awards:- India Science Award, Aryabhata Award, G. D. Birla Award for Scientific Research, H. K. Firodia Awards, National Bioscience Award for Career Development, Swarnajayanti Fellowship etc.