science & tech MCQ section 7 MCQ Questions & Answers Detailed Explanation

Answer: (a)

More than 3.8 billion people worldwide used the Global System for Mobile Communications (GSM) family of technologies as of May 2009. GSM is the most widely used wireless technology in the world.

GSM has a straightforward, cost-effective migration path to 3G through GPRS, EDGE and UMTS-HSPA, as well as beyond 3G via the HSPA Evolution (HSPA+). LTE and System Architecture Evolution (SAE) initiatives.

Answer: (a)

Space Pioneer Award is conferred by the National Space Society (NSS), an American educational and scientific organization.

Answer: (d)

Scientists genetically engineered Tulsi or basil to produce eugenol, having pharmaceutical value which controls the breast cancer. Tulsi is a medicinal plant and has anti-cancerous compounds.

Answer: (b)

Subrahmanyan Chandrasekhar was an Indian-American astrophysicist who, with William A. Fowler, won the 1983 Nobel Prize for Physics for key discoveries that led to the currently accepted theory on the later evolutionary stages of massive stars. The Chandrasekhar limit is named after him.

Chandrasekhar was the nephew of Sir Chandrasekhara Venkata Raman, who won the Nobel Prize for Physics in 1930. Chandrasekhar in distinct periods worked in various areas including stellar structure, theory of white dwarfs, stellar dynamics, theory of radiative transfer, quantum theory of the negative ion of Hydrogen, hydrodynamic and hydromagnetic stability, equilibrium and the stability of ellipsoidal figures of equilibrium, general relativity. the mathematical theory of black holes and the theory of colliding gravitational waves.

Answer: (a)

Facebook on 4 April 2013 released the software called Home, which puts the feeds from Facebook on Android phones’ home screen. Software would become the wrapper for Android operating system. It will become the primary way of handling the phone.

Answer: (c)

In the wake of large number of deaths due to viral disease Ebola, the use of drug ZMapp was approved to combat the disease.