Science and Technology MCQ Set 41
Showing question 201 to 205 of total 301 MCQs
MCQ Set: 41
Solve the question on your notebook and check it by clicking (Answer and Explanation) below question.
Question No: 201
What is India's first all weather tracked chassis QR-SAM missile stand for?
- Quick Reaction Surface-to-Air Missile
- Quotient Reaction Surface-to-Air Missile
- Quicker Reaction Surface-to-Air Missile
- None of the above
Answer and Explanation
Answer: A
Explanation
India on 4 June 2017 effectively test-fired indigenous first all weather tracked-chassis Quick Reaction Surface-to-Air Missile (QR-SAM).
The QR-SAM was test-fired from a mobile launcher at Integrated Test Range (ITR) at Chandipur in Odisha at around 12:39 p.m. local time.
This test of the QR-SAM was the first test of the indigenously developed sophisticated high-speed missile that is capable of destroying aerial targets, tanks, bunkers and short range missiles.
Official sources said the test was carried out for validating various parameters of the sophisticated weapon system to further strengthen its air defence system.
QR-SAM: Know More
The QR-SAM was jointly developed by the Defence Research Development Organisation (DRDO) and Bharat Electronics Limited.
Reports suggest that this missile system has the potential to engage multiple targets within a range of approximate 30 kilometres, with the configuration of two vehicles for area air defence.
It is equipped for quick reaction and the system is all weather enabled, a network-centric one, which is also capable of search-on-the-move.
It is a truck-mounted missile and is 360 degree rotatable, electronic-mechanically operated, turret-based launch unit.
The missile, which is a highly mobile air defence system, can also deceive enemy radars making it to be detected.
It can also be used as an anti-sea skimmer from a ship against low flying attacking missiles.
It employs dual thrust propulsion stage using high-energy solid propellant.
Question No: 202
Which communication satellite was successfully launched by India on June 5, 2017?
- GSAT-19
- GSAT-20
- FAT Boy
- Only a and c
- All the above
Answer and Explanation
Answer: D
Explanation
Indian Space Research Organisation (ISRO) on 5 June 2017 successfully launched the communication satellite GSAT-19 into a Geosynchronous Transfer Orbit (GTO).
The communication satellite was lifted by an indigenously developed launch vehicle named Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk- III) D-1 from the second launch pad of the spaceport at the Satish Dhawan Space Centre, Sriharikota at 5.28 pm.
The GSLV Mk-III is referred as FAT Boy of ISRO or India is ISRO’s its most powerful rocket.
The countdown to ISRO’s historic launch of GSLV Mark III D-1 was started on 4 June 2017 at the Satish Dhawan Space Centre, Sriharikota.
In a further advance of its space programme with this successful launch, India has managed to win a bigger share of the $300 billion global space industry.
This is the first ever developmental flight for the 4-ton class vehicle, powered by the indigenous cryogenic upper stage of 20 tonnes thrust.
In this test flight, the ISRO’s most powerful ever rocket is set to carry the satellite of 3136 kg lift off mass into space, the heaviest ever to be launched from Indian soil.
GSAT-19: Know More
At 3136 kgs (6914 lb) the GSAT-19 satellite will be the heaviest India has attempted to put in orbit.
The United States, Russia, China, Japan and European Space Agency have launched satellites weighing over three tonne.
Prime Minister Narendra Modi’s government has been promoting the home-grown space programme as a demonstration of low-cost technology and in February it launched 104 satellites in a single mission, most of them for foreign customers.
ISRO hopes that the launch will help it in attracting more foreign business in the heavier segment of the satellite business.
GSAT-19 satellite with a lift-off mass of 3136 kg is the communication satellite of India, configured around the ISRO’s standard I-3K bus.
The satellite carries Ka/Ku-band high throughput communication transponders. Besides, it carries a Geostationary Radiation Spectrometer (GRASP) payload to monitor and study the nature of charged particles and the influence of space radiation on satellites and their electronic components.
GSAT-19 also features certain advanced spacecraft technologies including miniaturised heat pipe, fibre optic gyro, Micro-Electro-Mechanical Systems (MEMS) accelerometer, Ku-band TTC transponder, as well an indigenous Lithium-ion Battery.
GSAT-19 was powered by indigenously-made Lithium-ion batteries.
This was the first time when ISRO has powered a satellite for the first time with Lithium-ion batteries. Similar batteries will be used in future to power electric vehicles like cars and buses.
Question No: 203
Chinese archaeologists have discovered a 1000 year old Fugan temple in _____ province.
- Xinjiang
- Urumqi
- Chengdu
- Sichuan
Answer and Explanation
Answer: D
Explanation
Chinese archaeologists have discovered the Fugan Temple, which had been lost for almost 1000 years in China’s south-western Sichuan province.
The Temple, located in downtown Chengdu, was a famous one that lasted from the Eastern Jin Dynasty (317- 420) to the Southern Song Dynasty (1127-1279).
The archaeologists have unearthed more than 1,000 tablets inscribed with Buddhist scriptures and over 500 pieces of stone sculpture along with glazed tiles with inscriptions.
Besides this, the archaeologists have also discovered around 80 ancient tombs scattered near the temple, dating back to Shang and Zhou dynasties (1600-256 BC).
In the temple’s surroundings, they have unearthed large amounts of household tools and utensils and building materials dating back to various periods from the Song to Ming dynasties.
Chengdu became an economic and cultural centre in western China during the Sui and Tang dynasties.
A famous Tang Dynasty monk, Daoxuan, once wrote that an official rite to pray for rain to end a persistent drought was held in front of the temple and it rained as if the prayers had been heard in heaven.
The Story Behind Fugan Temple: Know More
The story is how the Fugan Temple got its name Fugan, as it means ‘perceive the blessing’.
The popular Tang Dynasty poet Liu Yuxi left a poem to commemorate the temple’s renovation, describing its heavenly appearance.
The poem further noted the temple’s significant role at that time. The building was, however, worn down during the later period of the Tang and Song dynasties, with all traces of the temple disappearing during wars.
Question No: 204
Which state government has launched the first rural LED lighting scheme in India?
- Arunachal Pradesh
- Andhra Pradesh
- Madhya Pradesh
- Uttar Pradesh
Answer and Explanation
Answer: B
Explanation
Government will retrofit 10 lakh conventional street lights with LED lights in Gram Panchayats of 7 districts in Andhra Pradesh.
The project will be carried out by the Energy Efficiency Services Limited (EESL) functioning under the Ministry of Power.
This project will be the first rural LED street lighting project under the Government of India’s Street Lighting National Project (SLNP).
It will help gram panchayats to cumulatively save approximately 147 million units of electricity in a year. It will lead to a reduction of approximately 12 crore tonnes of CO2.
The EESL will be made responsible for carrying out annual maintenance and warranty replacement exercises in these gram panchayats for a period of 10 years.
Andhra Pradesh became the first state to get assistance from EESL to replace conventional street lighting with LED lighting after cyclone Hudhud caused extensive damage in Visakhapatnam. Since then, EESL has installed an approximate 5,90,000 LED street lights in the State.
These lights has helped the state to reduce over 65,000 tonnes of CO2 every year. Across the country, more than 23 lakh conventional street lights have been replaced by LED street lights in 21 States.
100 Cities National Programme and SLNP: Know More
Prime Minister Narendra Modi has launched ‘100 cities National Programme‘ on January 5, 2015 to replace conventional domestic lights with energy efficient LED lights.
Similarly, Under the Street Light National Programme (SLNP), the government has set a target of replacing 1.34 crore conventional street lights with LED lights across the country.
LED bulbs have a very long life, almost 50 times more than ordinary bulbs, and 8 to 10 times that of CFLs, and therefore provide both energy and cost savings in the medium term.
The benefits of LED lights are: (i) Electricity savings (ii) Reduction of load (iii) Reduction of consumer bills (iv) Greenhouse gas emission reductions.
Question No: 205
NASA is set to launch which rocket to release artificial clouds and support space studies?
- Terrier Improved Malemute
- Eagle Improved Malemute
- Terrain Improved Malemute
- None of the above
Answer and Explanation
Answer: A
Explanation
NASA will launch the Terrier-Improved Malemute sounding rocket into the space that will release blue-green and red artificial clouds.
The launch is expected to support space studies. The launch which was originally scheduled for May 31 eventually got delayed due to poor weather conditions.
The ground stations will require clear skies to clearly view blue-green and red artificial clouds that will be produced as part of the test.
These artificial clouds will be visible from New York to North Carolina.
The rocket will eject vapour canisters between 10 to 20 km from the rocket’s main payload. These canisters will release the vapour after launch. Ground cameras will be stationed to view the vapour tracers.
The vapour tracers will be formed due to the interaction of barium, strontium and cupric-oxide. The multi-canister or ampule ejection system will facilitate the scientists to gather information over a much larger area.
The total flight time of the mission will be around 8 minutes.
What Are Sounding Rockets?
Sounding rockets derive their name from the nautical term “to sound” that is to take measurements. The sounding rockets are short lived and follows a parabolic trajectory.
The significance of the launch lies in the fact that the vapour traces can be helpful in studying the ionosphere.
Since the 1950s, scientists are making use of the sounding rockets to study high-level winds and the Earth’s magnetic field.
Since these fields are invisible to the human eye, tracer elements like barium makes their movement visible.
It will help in the study of the motion of the charged particles in the ionosphere as well as the motion of the neutral particles in the upper atmosphere.