Science and Technology Questions & Answers for UPSC

Science and Technology is that segment of UPSC Civil Services Examination that scares most of the aspirants coming from non-technical backgrounds. One question is often asked that is, “How to prepare Science and Technology for UPSC?”

Along with answering how to prepare for Science and Technology for UPSC IAS Exam, BYJU’S Science Education Portal has answered questions from wide-ranging topics that are important for the exam.

The answers are tailored to aspirants’ needs. Not only from the static topics, questions are extracted even from the current affairs topics that are related to science and technology.

How will Science Questions & Answers help UPSC aspirants?

The Science and Technology Questions & Answers portal will help IAS aspirants in the following way:

  • Clarity of topics – A variety of topics from science are covered that will bring clarity on how to approach this subject for UPSC.
  • UPSC Syllabus is the source – Any topic that is important from the civil services examination point of view has been covered in the form of questions ans answers.
  • From NCERTs to Current Affairs – Each question from a key topic that has been covered either in school textbooks or newspapers and is important from the exam’s point of view will be answered here.
Ramjet engines are usually efficient when the vehicle is traveling at supersonic speeds of around Mach 3. You can read about the Hypersonic...
A hypersonic engine is an engine which helps a vehicle attain hypersonic speeds, i.e. at least Mach 4 - four times the speed of sound. You can...
In hypersonic engines, the air gets compressed through aerodynamics and forward velocity. It does not use rotating compressors. When airstream...
No, the scramjet engine does not have any moving parts.You can read about the Hypersonic Technology Demonstrator Vehicle (HSTDV) - unmanned...
A vehicle powered by a scramjet engine can travel in hypersonic speeds, upto a speed of 10 Mach.You can read about the Hypersonic Technology...
In a Ramjet engine the air flows through the combustion chamber of the engine at subsonic speeds. The incoming air is compressed using the...
Yes, Scramjet is faster than ramjet. Ramjet operates at supersonic speeds and scramjet operates at hypersonic speeds. You can read about the...
The upper stage is the cryogenic stage. There is 1 liquid core stage. GSLV has three solid strap on boosters which is the initial stage. These...
Turbojet engine will work even when the speed is zero whereas the ramjet won't function when the speed is zero. You can read about the Hypersonic...
There are 3 different stages in GSLV. You can read about the GSLV Mk III - A Comprehensive Overview of Heavy Lift Launch Vehicle in the given...
Ramjet can be used in missiles. You can read about the Hypersonic Technology Demonstrator Vehicle (HSTDV) - unmanned scramjet technology of DRDO...
GSLV Mk III has a total of three stages. The core stage of GSLV is named as L-110. The upper stage of GSLV is the cryogenic stage. Powerhouse of...
Russia, USA, China and India are the countries having scramjet technology.You can read about the Hypersonic Technology Demonstrator Vehicle...
GSLV Mark 3 belongs to the GSLV family of launch vehicles which is the heaviest launch vehicle built by ISRO. You can read about the GSLV Mk III...
Scramjet engines can be used for achieving hypersonic speeds.You can read about the Hypersonic Technology Demonstrator Vehicle (HSTDV) - unmanned...
There are different variants of GSLV launch vehicles - GSLV Mk 1, GSLV Mk II, GSLV Mk III. The GSLV Mk I variant is no longer in service. You can...
The four stages of PSLV are PS 1, PS 2, PS 3, and PS 4. PS 4 is the final stage and PS 1 is the first stage of PSLV. You can read about the GSLV...
There are 4 different stages in PSLV. You can read about the GSLV Mk III - A Comprehensive Overview of Heavy Lift Launch Vehicle in the given...
ISRO has built five different variants or types of PSLV. You can read about the GSLV Mk III - A Comprehensive Overview of Heavy Lift Launch...
The job of the 4th stage of the rocket is to put the satellite or payload in its intended orbit. The 4th stage is the last stage. You can read...