science & tech MCQ section 3 MCQ Questions & Answers Detailed Explanation

Answer: (b)

Bharat Heavy Electricals Limited (BHEL) has commissioned a 660 MW unit of Prayagraj Super Thermal Power Project at Bara town in Allahabad district of Uttar Pradesh.

Answer: (a)

The Supernova is a stellar explosion that is more energetic than a nova. The explosion expels much or all of a star’s material. Supernovae can be triggered in one of two ways: by the sudden re-ignition of nuclear fusion in a degenerate star; or by the collapse of the core of a massive star. The core of an ageing massive star may undergo sudden gravitational collapse, releasing gravitational potential energy that can create a supernova explosion.

Alternatively, a white dwarf star may accumulate sufficient material from a stellar companion (either through accretion or via a merger) to raise its core temperature enough to ignite carbon fusion, at which point it undergoes runaway nuclear fusion, completely disrupting it.

Answer: (d)

The Vikram Sarabhai Space Centre (VSSC) is located in Thiruvananthapuram. The centre had its beginnings as the Thumba Equatorial Rocket Launching Station (TERLS) in 1962. It was renamed in honor of Dr. Vikram Sarabhai, the father of the Indian space program.

Answer: (d)

It will provide services like mobile, internet, video and other communications services to expand its reach into the Americas.

Answer: (a)

A communication satellite is basically a selfcontained communications system with the ability to receive signals from Earth and to retransmit those signals back with the use of a transponder—an integrated receiver and transmitter of radio signals.

Answer: (c)

First Climate Change theatre was opened at Pushpa Gujral Science City in Kapurthala, Punjab on 16 January 2014. The theatre will educate people on climate change. This is the second theatre in the world to be opened after Canada.