Daily Quiz: UPSC Prelims Marathon – April 19, 2018

Alpha keratin is a protein , found in skin, hair, nail, claws and hooves of animals

the fuel value is defined as the amount of heat produced in calories or joules when one gram of a substance (fuel) is completely burnt.

Fuel                                                    Calorific Value (KJ/g)

Hydrogen                                         150

Natural gas                                       55

Gasoline                                             45

Charcoal                                             30

The individual atoms or ions or molecules of a paramagnetic material possess permanent dipole moment of their own. Oxygen at standard temperature and pressure is paramagnetic in nature. Other example are AI, Na and Ca.

A geostationary satellite is an earth orbiting satellite, placed at an altitude of approximately 35,800 kilometer (22,300 miles) directly over equator , that revolves in the same direction the earth rotate ( west to each) .At this time altitude , one orbit takes 24 hours , the same length of the as the earth

Require to rotate once on its axis .the term geostationary comes from the fact that such a satellite appears nearly stationary in the sky as seen by a ground base observer

Frequency modulate (FM) transmission has little or no harm from noise compared to amplitude Modulate (AM) transmission. Various electrical disturbance , such as those caused by thunderstorm and automobile ignition system create amplitude modulate radio signals that are received as noise by AM receivers

A-2 B-4  C-1 D-3

Indian institute of geomagnetism –                                     Mumbai

International advanced research Centre for powder metallurgy and   – Hyderabad New materials

Salim Ali Centre for Ornithology  & natural history – coimbatore

Tropical Forestry Research Institute  – Jabalpur

A smart  card is a plastic card about the size of a credit card , with an embedded microchip that can be loaded with the data , used for telephone calling, electronic cash payment , and other applications, and then periodically refreshed  for additional use,

Digital technology enables immense amount of information to be compressed on small storage device that can be easily preserved and transported. Digitalization also quickness data transmission speeds telecommunication had relied on digital method to transmit message. In the early 1980s, enhanced fibre optics enabled the development of digital  communication network . communication satellites known as the direct broadcast satellite (DBS) transmitted compressed digital signals for viewers the receive several hundred television programming choices.

A digital library is a collection of documents in organized electrons from, available on the Internet or on CD- ROM ( compact –disk –read-only memory ) disks. Depending on the specific library , a user may be able to access magazine article, books papers, image, sound files, and videos.

Statement 3 is wrong , sugar can be produced from Sugar Beet also. Sugarbeet is the major contributor for world’s sugar production than sugarcane. Brazil produces sugar from beet sugar.