[Mission 2022] QUIZ – 2021: Insights Current Affairs Quiz , 25 April 2022

Solution: b)

Biogas is a renewable fuel produced by the breakdown of organic matter such as food scraps and animal waste by microorganisms in the absence of oxygen. It burns without smoke, leaves no residue like ash in wood, charcoal and coal burning. Its heating capacity is high.

Solution: a)

Differences between PSLV and GSLV:

• India has two operational launchers- Polar Satellite Launch Vehicle (PSLV) and Geosynchronous Satellite Launch Vehicle (GSLV).
• PSLV is the third generation launch vehicle of India and the first Indian launch vehicle which is equipped with liquid stages.
• GSLV, on the other hand, is the fourth generation launch vehicle and is a three-stage vehicle with four liquid strap-ons.
• PSLV was developed to launch low-Earth Orbit satellites into polar and sun synchronous orbits. It has since proved its versatility by launching geosynchronous, lunar and interplanetary spacecraft successfully.
• On the other hand, GSLV was developed to launch the heavier INSAT class of geosynchronous satellites into orbit. In its third and final stage, GSLV uses the indigenously developed cryogenic upper stage.
• PSLV is designed mainly to deliver the earth observation or remote sensing satellites, whereas, GSLV has been designed for launching communication satellites.
• GSLV delivers satellites into a higher elliptical orbit, Geosynchronous Transfer Orbit (GTO) and Geosynchronous Earth Orbit (GEO).
• PSLV can carry satellites up to a total weight of 2000 kgs into space and reach up to an altitude of 600-900 km. GSLV can carry weight up to 5000 kgs and reach up to 36,000 km.

Solution: d)

Parambikulam Dam is an embankment dam on the Parambikulam River. The Idukki Dam is a double curvature Arch dam constructed across the Periyar River. Aliyar Reservoir is a reservoir located in Aliyar village in Tamil Nadu.

Solution: b)

As per the official website of the National Cyber Crime Reporting Portal, the programme will help law enforcement agencies in identifying, reporting and in the removal of illegal/unlawful online content.

This form of surveillance, which enables citizens to “watch over” one another is called lateral surveillance.

This is not the first time state-sponsored lateral surveillance has been implemented in India. For example, the C-Plan App in Uttar Pradesh launched for keeping a tab on anti-social elements, is designed to receive inputs from certain identified individuals in villages across the State.

Solution: c)

The twinkling of a star is due to atmospheric refraction of starlight. The starlight, on entering the earth’s atmosphere, undergoes refraction continuously before it reaches the earth.