science & tech MCQ section 6 MCQ Questions & Answers Detailed Explanation

Answer: (a)

A geostationary satellite is an earth-orbiting satellite, placed at an altitude of approximately 35,800 kilometres (22,300 miles) directly over the equator, that revolves in the same direction the earth rotates (west to east).

At this altitude, one orbit takes 24 hours, the same length of time as the earth requires 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-based observer.

Answer: (b)

Swine flu/influenza is caused by virus. There are several types of swine influenza such as influenza C and influenza A (includes H1N1, H1N2, H2N1, H3N1, H3N2, and H2N3). Malaria is caused by protozoa, plasmodium.

Answer: (d)

ARussian Capsule Bion-M craft that was filled with 45 mice and 15 newts along with other animals returned from a month’s long mission in Orbit on 19 May 2013.

Answer: (b)

Dactylogram is simply a fingerprint. The word originates from the Greek word 'daktylos' which loosely translates to 'something written'. The study of fingerprints for identification purposes is called dactylography.

Answer: (c)

At present, for 900 MHz, permissible Power Density is 4.5 Watt per Square meter, whereas for 1800 MHz permissible Power Density is 9 Watt per Square meter.

Answer: (a)

Adnan Z. Amin was elected as the Director General of the International Renewable Energy Agency (IRENA) in April 2011. Helene Pelosse was the earlier Directorate General of IRENA. She served in this position for 15 months, from June 30, 2009 until October 21, 2010.