15 Science and Technology MCQs from the General Awareness section, with answers and short explanations.
Q1. Who is known as the father of the Indian space programme?A Vikram SarabhaiB A. P. J. Abdul KalamC C. V. RamanD Homi J. Bhabha
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Answer: A. Vikram Sarabhai
Dr Vikram Sarabhai is regarded as the father of the Indian space programme and led the founding of ISRO in 1969. The Vikram Sarabhai Space Centre bears his name.
Science and Technology · easy · Beginner Practice Set 1
Q2. What does 'WWW' stand for?A Wide World WebB World Wide WirelessC Web World WideD World Wide Web
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Answer: D. World Wide Web
WWW stands for World Wide Web, a system of linked web pages accessed over the internet. Tim Berners-Lee proposed it in 1989.
Science and Technology · easy · Beginner Practice Set 2
Q3. In ISRO's launch vehicle 'PSLV', what does 'PSLV' stand for?A Primary Satellite Launch VehicleB Polar Space Launch VehicleC Polar Satellite Launch VehicleD Planetary Satellite Launch Vehicle
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Answer: C. Polar Satellite Launch Vehicle
PSLV stands for Polar Satellite Launch Vehicle. It launched Chandrayaan-1 and the Mars Orbiter Mission.
Science and Technology · easy · Beginner Practice Set 4
Q4. What does 'ISRO' stand for?A Indian Science Research OrganisationB International Space Research OfficeC Indian Satellite Research OrganisationD Indian Space Research Organisation
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Answer: D. Indian Space Research Organisation
ISRO is the Indian Space Research Organisation, headquartered in Bengaluru.
Science and Technology · easy · Beginner Practice Set 8
Q5. What does 'CPU' stand for in computers?A Central Processing UnitB Control Power UnitC Computer Processing UnitD Central Program Unit
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Answer: A. Central Processing Unit
CPU stands for Central Processing Unit, which carries out a computer's instructions. It contains the arithmetic logic unit and the control unit.
Science and Technology · easy · Beginner Practice Set 9
Q6. How many bits make up one byte?A 10B 8C 16D 4
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Answer: B. 8
One byte is made up of 8 bits. A bit is the smallest unit of data and can be 0 or 1.
Science and Technology · easy · Beginner Practice Set 9
Q7. What was the name of India's first satellite?A AryabhataB RohiniC INSAT-1AD Bhaskara
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Answer: A. Aryabhata
Aryabhata, India's first satellite, was launched on 19 April 1975. It went up on a Soviet rocket.
Science and Technology · easy · Beginner Practice Set 10
Q8. ISRO's Aditya-L1 mission, launched in 2023, was designed to study:A Venus' cloudsB The Moon's polesC Mars' atmosphereD The Sun
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Answer: D. The Sun
Aditya-L1 is India's first solar observatory, placed in a halo orbit around the Sun-Earth L1 point. It studies the solar corona and solar wind.
Science and Technology · medium · Intermediate Practice Set 1
Q9. In which year was India's Mars Orbiter Mission (Mangalyaan) launched?A 2013B 2015C 2008D 2011
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Answer: A. 2013
Mangalyaan was launched on 5 November 2013 and entered Mars orbit in September 2014. India was the first country to reach Mars orbit on its first attempt.
Science and Technology · medium · Intermediate Practice Set 3
Q10. In which year was India's first satellite, Aryabhata, launched?A 1963B 1980C 1969D 1975
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Answer: D. 1975
Aryabhata was launched on 19 April 1975 on a Soviet rocket. India's first satellite launched on its own rocket was Rohini, in 1980.
Science and Technology · medium · Intermediate Practice Set 8
Q11. In web addresses, what does 'HTTP' stand for?A Hyperlink Text Transfer ProcessB HyperText Transfer ProtocolC High Transfer Text ProtocolD HyperText Transmission Program
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Answer: B. HyperText Transfer Protocol
HTTP stands for HyperText Transfer Protocol, the protocol web browsers and servers use to talk to each other. HTTPS is its encrypted version.
Science and Technology · medium · Intermediate Practice Set 10
Q12. The hexadecimal number system uses which base?A 8B 10C 16D 2
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Answer: C. 16
Hexadecimal is base 16. Binary is base 2 and octal base 8.
Science and Technology · hard · Advanced Practice Set 1
Q13. Which was the first satellite placed in orbit by an Indian-built launch vehicle (SLV-3, 1980)?A Bhaskara-IB AryabhataC Rohini RS-1D APPLE
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Answer: C. Rohini RS-1
SLV-3 placed Rohini RS-1 in orbit on 18 July 1980. Aryabhata and Bhaskara-I were launched on Soviet rockets and APPLE on the European Ariane.
Science and Technology · hard · Advanced Practice Set 1
Q14. ISRO's Chandrayaan-3 landed near which region of the Moon?A Far side equatorB EquatorC South poleD North pole
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Answer: C. South pole
Chandrayaan-3's Vikram lander touched down near the Moon's south pole on 23 August 2023.
Science and Technology · hard · Advanced Practice Set 5
Q15. Which type of computer memory loses its contents when power is switched off?A RAMB ROMC Hard diskD Flash memory
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Answer: A. RAM
RAM is volatile memory. ROM, hard disks and flash memory are non-volatile and keep data without power.
Science and Technology · hard · Advanced Practice Set 6
