Science, Technology and National Security Questions and Answers

Q: When Wilbur and Wright brothers made the first mechanical flight and created the aerial age ?

The first powered flight was made on 17 December, 1903.Orville and Wilbur Wright flew the Wright Flyer at Kill Devil Hills near Kitty Hawk, North Carolina. Orville piloted the first flight of 12 seconds and about 120 feet, and Wilbur made the longest of the day's four flights, about 59 seconds. It was the first sustained, controlled flight of a powered heavier-than-air machine.27 December 1903 changes the day, 1899 is when the brothers were still experimenting with kites, and 1906 is the year of Santos-Dumont's flight in Paris.

Q: "Different phases in the life of a particular technology" is called as :

The phases in the life of a technology are called the Technology Life Cycle.A technology typically passes through research and development, introduction, growth as it is adopted, maturity, and decline as a newer technology replaces it, a pattern often drawn as an S-curve of performance against effort. In defence planning the cycle governs when a weapon system should be upgraded or replaced.Extension of technology and technology upgradation describe single steps within the cycle, and application of science is the general process of using scientific knowledge, not the sequence of phases.

Q: When MIG project was transferred from the then USSR to India ?

The key places the MiG project transfer after 1962 Chinese Aggression.India agreed with the USSR in 1962 to acquire the MiG-21 and to manufacture it under licence. The aircraft reached the Indian Air Force from 1963, and Hindustan Aeronautics set up factories at Nasik, Koraput and Hyderabad to build the airframe, engine and avionics, so the transfer of technology took place in the years after the war with China, when India was rapidly expanding its forces.Before independence and after 1947-48 India relied on British aircraft, and by 1971 the MiG-21 was already in Indian service, so those options are too early or too late.

Q: The abbreviation HIMAT stands for :

HIMAT stands for Highly Manoeuvreable Aircraft Technology Vehicle.HiMAT was a NASA and US Air Force research programme of the late 1970s and early 1980s. Two remotely piloted, sub-scale aircraft built by Rockwell were flown from NASA's Dryden centre to test technologies for future fighters, such as composite materials, canards, winglets and relaxed static stability.The other expansions are invented phrases built from the same letters; none of them is the name of any real programme.

Q: K-15, SAGARIKA is a :

K-15 Sagarika is an SLBM, a submarine-launched ballistic missile.Developed by DRDO, the K-15 (also called B-05) has a range of about 750 km and is carried by India's nuclear-powered ballistic missile submarine INS Arihant, giving India the sea-based leg of its nuclear triad. The K-series missiles are named after Dr A.P.J. Abdul Kalam.An SRBM is a land-based short-range missile such as Prithvi, an IRBM an intermediate-range one such as Agni-II, and an ICBM an intercontinental one such as Agni-V; none of these is launched from a submarine.

Q: Which of the following is the common language in Artificial Intelligence ?

The key gives Python, the language now most commonly used in artificial intelligence.Python dominates AI and machine learning because of its simple syntax and its large libraries for the field, such as TensorFlow, PyTorch, scikit-learn and NumPy, so most AI research and development today is written in it.Lisp was the traditional language of AI research from the late 1950s, created by John McCarthy, but it is no longer the common language of the field. Java is used in enterprise software and PHP mainly for web servers; neither is the usual choice for AI work.

Q: "Improving the level or quality of technology" is known as :

Improving the level or quality of technology is Technology upgradation.Upgradation means raising the standard of technology already in use, for example modernising weapon systems or production processes.Technology acquisition is obtaining technology one does not have, transfer of technology is its movement from one party to another, and the technology life cycle describes the stages a technology passes through from development to obsolescence. In defence, fitting existing aircraft, tanks or ships with new avionics, engines or weapons is a common form of technology upgradation.

Q: When did Chandrayan 3 made the soft landing on moon ?

Chandrayaan-3 landed On 23rd August 2023.The Vikram lander of Chandrayaan-3 made a soft landing near the Moon's south pole at 6.04 pm IST on 23 August 2023, making India the first country to land near the lunar south pole and the fourth to make a soft landing on the Moon. The date is now celebrated as National Space Day.The other dates are a day or two off.

Q: India conducted ASAT test in the year :

India conducted its ASAT test in 2019.On 27 March 2019, under Mission Shakti, DRDO used a ballistic missile interceptor to destroy a live Indian satellite in low earth orbit at about 300 km altitude. India became the fourth country, after the United States, Russia and China, to demonstrate an anti-satellite capability.2018, 2020 and 2021 do not match the date of the test.

Q: 'Wings of Fire' is the biography of

'Wings of Fire' is the biography of A.P.J. Abdul Kalam.It is the autobiography of Kalam, written with Arun Tiwari in 1999, telling of his life from Rameswaram to his work at ISRO and DRDO and in the missile programme.Homi Bhabha, Raja Ramanna and Vikram Sarabhai were scientists of the atomic and space programmes but did not write this book.The book is also a story of the growth of India's missile programme, from the SLV-3 launch vehicle to the Agni and Prithvi missiles.

41.

When Wilbur and Wright brothers made the first mechanical flight and created the aerial age ?

A.on 17 December, 1903
B.on 27 December, 1903
C.on 7 December, 1906
D.on 17 December, 1899

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: A

The first powered flight was made on 17 December, 1903.

Orville and Wilbur Wright flew the Wright Flyer at Kill Devil Hills near Kitty Hawk, North Carolina. Orville piloted the first flight of 12 seconds and about 120 feet, and Wilbur made the longest of the day's four flights, about 59 seconds. It was the first sustained, controlled flight of a powered heavier-than-air machine.

27 December 1903 changes the day, 1899 is when the brothers were still experimenting with kites, and 1906 is the year of Santos-Dumont's flight in Paris.

Discuss in Forum

42.

"Different phases in the life of a particular technology" is called as :

A.Technology Life Cycle
B.Extension of Technology
C.Technology Upgradation
D.Application of Science

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: A

The phases in the life of a technology are called the Technology Life Cycle.

A technology typically passes through research and development, introduction, growth as it is adopted, maturity, and decline as a newer technology replaces it, a pattern often drawn as an S-curve of performance against effort. In defence planning the cycle governs when a weapon system should be upgraded or replaced.

Extension of technology and technology upgradation describe single steps within the cycle, and application of science is the general process of using scientific knowledge, not the sequence of phases.

Discuss in Forum

43.

When MIG project was transferred from the then USSR to India ?

A.After 1947-48 Kashmir Operation
B.After 1962 Chinese Aggression
C.After 1971 Indo-Pak War
D.Before independence

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: B

The key places the MiG project transfer after 1962 Chinese Aggression.

India agreed with the USSR in 1962 to acquire the MiG-21 and to manufacture it under licence. The aircraft reached the Indian Air Force from 1963, and Hindustan Aeronautics set up factories at Nasik, Koraput and Hyderabad to build the airframe, engine and avionics, so the transfer of technology took place in the years after the war with China, when India was rapidly expanding its forces.

Before independence and after 1947-48 India relied on British aircraft, and by 1971 the MiG-21 was already in Indian service, so those options are too early or too late.

Discuss in Forum

44.

The abbreviation HIMAT stands for :

A.Highly Made Tactical Weapons
B.Highest Manufacturing Technology
C.Highly Manoeuvreable Aircraft Technology Vehicle
D.Height Made Technology Vehicle

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: C

HIMAT stands for Highly Manoeuvreable Aircraft Technology Vehicle.

HiMAT was a NASA and US Air Force research programme of the late 1970s and early 1980s. Two remotely piloted, sub-scale aircraft built by Rockwell were flown from NASA's Dryden centre to test technologies for future fighters, such as composite materials, canards, winglets and relaxed static stability.

The other expansions are invented phrases built from the same letters; none of them is the name of any real programme.

Discuss in Forum

45.

K-15, SAGARIKA is a :

A.SLBM
B.SRBM
C.ICBM
D.IRBM

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: A

K-15 Sagarika is an SLBM, a submarine-launched ballistic missile.

Developed by DRDO, the K-15 (also called B-05) has a range of about 750 km and is carried by India's nuclear-powered ballistic missile submarine INS Arihant, giving India the sea-based leg of its nuclear triad. The K-series missiles are named after Dr A.P.J. Abdul Kalam.

An SRBM is a land-based short-range missile such as Prithvi, an IRBM an intermediate-range one such as Agni-II, and an ICBM an intercontinental one such as Agni-V; none of these is launched from a submarine.

Discuss in Forum

46.

Which of the following is the common language in Artificial Intelligence ?

A.Python
B.Java
C.Lisp
D.PHP

Exam Year(s)

MH SET - 2024, SET Exam - 2024,

Answer: A

The key gives Python, the language now most commonly used in artificial intelligence.

Python dominates AI and machine learning because of its simple syntax and its large libraries for the field, such as TensorFlow, PyTorch, scikit-learn and NumPy, so most AI research and development today is written in it.

Lisp was the traditional language of AI research from the late 1950s, created by John McCarthy, but it is no longer the common language of the field. Java is used in enterprise software and PHP mainly for web servers; neither is the usual choice for AI work.

Discuss in Forum

47.

"Improving the level or quality of technology" is known as :

A.Technology upgradation
B.Technology acquisition
C.Technology life cycle
D.Transfer of technology

Exam Year(s)

MH SET - 2025, SET Exam - 2025,

Answer: A

Improving the level or quality of technology is Technology upgradation.

Upgradation means raising the standard of technology already in use, for example modernising weapon systems or production processes.

Technology acquisition is obtaining technology one does not have, transfer of technology is its movement from one party to another, and the technology life cycle describes the stages a technology passes through from development to obsolescence. In defence, fitting existing aircraft, tanks or ships with new avionics, engines or weapons is a common form of technology upgradation.

Discuss in Forum

48.

When did Chandrayan 3 made the soft landing on moon ?

A.On 21st August 2023
B.On 22nd August 2023
C.On 23rd August 2023
D.On 24th August 2023

Exam Year(s)

MH SET - 2025, SET Exam - 2025,

Answer: C

Chandrayaan-3 landed On 23rd August 2023.

The Vikram lander of Chandrayaan-3 made a soft landing near the Moon's south pole at 6.04 pm IST on 23 August 2023, making India the first country to land near the lunar south pole and the fourth to make a soft landing on the Moon. The date is now celebrated as National Space Day.

The other dates are a day or two off.

Discuss in Forum

49.

India conducted ASAT test in the year :

A.2018
B.2019
C.2020
D.2021

Exam Year(s)

MH SET - 2025, SET Exam - 2025,

Answer: B

India conducted its ASAT test in 2019.

On 27 March 2019, under Mission Shakti, DRDO used a ballistic missile interceptor to destroy a live Indian satellite in low earth orbit at about 300 km altitude. India became the fourth country, after the United States, Russia and China, to demonstrate an anti-satellite capability.

2018, 2020 and 2021 do not match the date of the test.

Discuss in Forum

50.

'Wings of Fire' is the biography of

A.Homi J. Bhabha
B.Raja Ramanna
C.A.P.J. Abdul Kalam
D.Vikram Sarabhai

Exam Year(s)

UGC NET - 2012,

Answer: C

'Wings of Fire' is the biography of A.P.J. Abdul Kalam.

It is the autobiography of Kalam, written with Arun Tiwari in 1999, telling of his life from Rameswaram to his work at ISRO and DRDO and in the missile programme.

Homi Bhabha, Raja Ramanna and Vikram Sarabhai were scientists of the atomic and space programmes but did not write this book.

The book is also a story of the growth of India's missile programme, from the SLV-3 launch vehicle to the Agni and Prithvi missiles.

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