GS Daily MCQs: 02.04.08

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Science & Tech 

 

Question 1

Polar Remotely Operated Vehicle (PROVe)  has been successfully deployed in
Priyadarshini Lake of Antarctica. Which of  the following is/are its benefits?
1. It will measure parameters like ocean currents, temperature, dissolved oxygen and salinity.
2. It will improve the Monsoon prediction.
3. It will help in understanding the biological activities taking place inside
the sea.
Select the correct answer using below given options
(a) 1 and 3
(b) 2 and 3
(c) Only 2
(d) All

Answer 1.
Solution D

India’s first Polar Remotely Operated Vehicle (PROVe) operationalized in North Antarctica
• It is an indigenously built by National Institute of Ocean Technology (NIOT) under Union Ministry of Earth Sciences
• It will measure parameters like ocean currents, temperature, dissolved oxygen and salinity in the Antarctic.
• It makes monsoon prediction and reading of pattern easier. It helps in capable of probing the sea bed under normal temperature and exploring up to 200 meters in inhospitable and tough regions. It is successfully deployed
in Priyadarshini Lake (Antarctica) by ESSO ­NIOT.
• The results and outcomes will help researchers in understanding the biological activities taking place inside the sea.
• ESSO­NIOT is an Indo­US initiative under the Monsoon Mission program of the Union Ministry of Earth Sciences.
 It will study science behind the monsoonal events of Bay of Bengal using
both Indian & US research ships. It will especially help scientist to move away from present Mathematical models for forecasting the Monsoon which many times vary from initial forecast.

 

Question 2

The National Optical Fibre Network (NOFN) aims to connect all the 2,50,000 Gram panchayats in the country and provide 100
Mbps connectivity to all gram panchayats (GPs). Which of the following advantages does Fiber optics has over traditional metal
communications lines?
1. Fiber optic cables have a much greater bandwidth than metal cables.
2. Fiber optic cables are less susceptible than metal cables to interference.
3. Data can be transmitted digitally rather than analogically.

(a) 1 and 3
(b) Only 2
(c) Only 1
(d) All

Answer 2
Solution – D

Fibre optics is a technology that uses glass (or plastic) threads (fibers) to transmit data. A fiber optic cable consists of a bundle of glass
threads, each of which is capable of transmitting messages modulated onto light waves.

Question 3

Which of the following statements is/are true about the newly developed instrument Bio Indicator Lidar Instrument?
1. It has been developed for use in space research jointly by ISRO and Europian Space Agency.
2. It uses sound waves to detect and analyze the composition of air.
3. It is used in detecting signatures of life on Mars.

(a) 1 and 3
(b) 2 and 3
(c) Only 3
(d) None

Answer 3 —
Solution — C

It has been developed for use in space research only by NASA. It uses light waves to detect and analyze the composition of air. It will be going to be used in detecting signatures of life on Mars.