science & tech MCQ section 5 MCQ Questions & Answers Detailed Explanation

Question : 1

Which one of the following pairs is incorrect?

a) Cosmid - A vector for carrying large DNA fragments into host cells

b) Plasmid - small piece of extrachromosomal DNA in bacteria

c) Interferon - an enzyme that interferes with DNA replication

d) Myeloma - antibody producing tumour cells.

Question : 2

The US Department of Energy’s Brookhaven National Laboratory in New York an attempt to understand cosmic history used a giant atom smasher and has generated a temperature of

a) 85 billion degrees celsius

b) 4 trillion degrees celsius

c) 2.5 trillion degrees celsius

d) 52 billion degrees celsius

Question : 3

Consider the following statements.

1. 45th Navy Day was observed on 4th December 2015.
2. Chief of Naval staff Robin K Dhowan along with Air Chief Marshal Arup Raha and Army Chief General Dalbir Singh Suhag paid tributes to martyrs at the Amar Jawan Jyoti in New Delhi.
3. Every year Indian Navy celebrates Navy Day on December 4 to commemorate the success of the Operation Talwar of 1971 India-Pakistan War.

a) 3 only

b) 2 only

c) 1 only

d) None of them

Question : 4

Consider the following Statements:

1. China has launched Yaogan-26 a remote sensing satellite.
2. It will mainly be used for scientific experiments, land surveys, crop yield estimates and disaster prevention.
3. China launched Yaogan-1, first satellite in the Yaogan series in 2006.

a) 1 and 3 only

b) 2 and 3 only

c) 1 and 2 only

d) All of the above

Question : 5

ISRO launched the world’s first satellite dedicated to education, the EDUSAT in the month of

a) July 2004

b) September 2004

c) August 2004

d) June 2004

Question : 6

In the case of the nuclear disaster which of the following options for cooling the nuclear reactors may be adopted?

1. Pumping of water to the reactors.
2. Use of boric acid.
3. Taking out the fuel rods and keeping them in a cooling pond.

a) 1 and 2

b) 2 and 3

c) 1, 2 and 3

d) 3 only