Test: India: Science and Technology- 2 - Class 8 MCQ

India's multipurpose telecommunication satellite INSAT-2E was launched on 3nd April, 1999, from Kourou, French Guyana South America. It was launched by Ariane-42P vehicle of Arianespace. 

NuSTAR is a NASA-funded small explorer mission that carries the first focusing hard X-ray telescope to orbit. 
NuSTAR will carry out a two-year primary science mission that focuses on black holes. 
It will also offer opportunities for a broad range of science investigations, ranging from probing cosmic ray origins to studying the extreme physics around collapsed stars to mapping microflares on the surface of the sun. 

Joseph Priestley was hugely productive in research and widely notorious in philosophy. He invented carbonated water and the rubber eraser, identified a dozen key chemical compounds, and wrote an important early paper about electricity. 
He found that air is not an elementary substance, but a composition, or mixture, of gases. The world recalls Priestley best as the man who discovered oxygen, the active ingredient in our planet's atmosphere.

The Phunkee Duck personal transportation device is the next era of transportation. It is a futuristic skateboard-Segway hybrid that allows users to wheel around at up to 18 kilometer per hour with little to no effort, making it the new go-to gadget among celebrities.

The Mangalyaan mission is one of the cheapest interplanetary space missions ever launched and puts India on a par with the US, Russia and the European Space Agency, which have also sent spacecraft to Mars. 
By putting the Mars Orbiter Mission (MOM) in orbit around Mars, India became the first nation to successfully put a satellite into orbit around Mars on its first attempt. 
The objectives of the MOM are to study Mars’ surface features, mineral compositions and atmospheric conditions using indigenously developed instruments.

Central Processing Unit (CPU) is the brain of the computer where most calculations take place. It processes the data and produces output, which may be stored by an application or displayed on the screen. Most modern CPUs are microprocessors, where the CPU is contained in a single metal oxide semiconductor integrated circuit.

Convection currents transfer heat from one place to another by mass motion of a fluid such as water, air or molten rocks. If they occur naturally they are called natural convection or free convection. If convection is forced to occur, it is called forced convection.

MIPS stands for 'Million instructions per second'. It is a method of measuring the raw speed of a computer's processor. The MIPS measurement has been used by computer manufacturers like IBM to measure the "cost of computing".
However, there is no standard method for measuring MIPS.

Concorde was a passenger airplane that flew faster than the speed of sound. It was made by the French company Aerospatiale and the British company British Aircraft Corporation.

China became the second country after France to construct a solar highway. The photovoltaic highway can charge electric-powered vehicles. The highway is constructed using solar panels which have a thin sheet of transparent concrete on top of them, protecting the surface.