science & tech MCQ section 5 MCQ Questions & Answers Detailed Explanation

Answer: (c)

Contactless cards launched by ICICI Bank can be used to make electronic payments by waving the cards near the merchant terminal instead of dipping or swiping. These cards are based on Near Field Communication technology.

Answer: (d)

A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth’s rotation period. Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky that is typically some form of analemma.

Answer: (a)

While the Industrial Revolution meant that more goods could be produced for human consumption, it also meant that more pollution would be emitted into the sky and more natural resources would have to be exploited in the production process. Industrialization has resulted in pollution of water, air and

Answer: (b)

This scorching achievement happened inside the Relativistic Heavy Ion Collider (RHIC), which is a 2.4-mile (3.9 kilometres) underground track where particles smash into one another under conditions that existed about a millionth of a second after the Big Bang.

The new feat, at Brookhaven National Laboratory in Upton, N.Y., occurred when gold nuclei (the positively charged part of the atom made of protons and neutrons) were sent speeding around RHIC at near light-speed until they crashed into each other.

When the ions collide, the enormous energy released is so, intense it melts the neutrons and protons inside the gold nuclei into their constituent parts, namely quarks and gluons.

RHIC physicists have measured the temperature of this quark-gluon plasma, finding it reaches around 7.2 trillion degrees Fahrenheit (4 trillion degrees Celsius).

Answer: (c)

Interferons, Interleukins and Tumor necrosis factors are the proteins produced as a result of immune response to localized tissue damage.

Answer: (c)