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

Answer: (b)

Bridgmanite makes up about 70 percent of the earth's lower mantle and 38 percent of the total volume of earth. It is made up of high-density magnesium iron silicate.

Answer: (d)

US engineers have developed the world’s fastest car with a top speed of an incredible 435 kilometres per hour. US firm Hennessey’s Venom GT set the new record for the fastest car in the world during a test run at the Kennedy Space Centre in Florida.

Venom beat the previous best record of 431km/h set by Bugatti Veyron Super Sport.

Answer: (d)

National Green Tribunal has banned the burning of tyres in open as harmful products are released while burning them.

Answer: (c)

Europe’s cargo-carrier, the ATV-4 accomplished its Mission. The Automated Transfer Vehicle (ATV) was burnt over the uninhabited zone of the southern Pacific Ocean after a five month mission on 2 November 2013.

Answer: (b)

Saras: the first Indian multi-purpose civilian aircraft.;

Bhishma: modified Russian T-90 main battle tank;

BrahMoS: a short-range ramjet supersonic cruise missile developed as an Indo-Russian joint venture;

INSAT–3C: a multipurpose satellite built by ISRO and launched by Arianespace in Jan 2002.