General Knowledge Question Answer: Science And Technology GK Questions and Answers

General Knowledge Science And Technology Questions, Science And Technology Quiz for Competitive Exams, Important Science And Technology MCQs for GK

Q. What is the difference between Bluetooth and Wi-Fi devices?
1) Bluetooth uses 2.4 GHz radio frequency band, whereas-Wi-Fi can use 2.4 GHz or 5 GHz frequency band.
2) Bluetooth is used for Wireless Local Area Networks (WLAN) only, whereas Wi-Fi is used for Wireless Wide Area Networks (WWAN) only.
3) When information is transmitted between two devices using Blue-tooth technology, the devices have to be in the line of sight of each other, but when Wi-Fi technology is used the devices need not be in the line of sight of each other
4) The statements (A) and (B) given above are correct in this context

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Q. What is the difference between a CFL and an LED lamp? (2011)
1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semiconductor material.
2. The average life span of a CFL is much longer than that of an LED lamp.
3. A CFL is less energy-efficient as compared to an LED lamp.
Which of the statements given above is/ are correct?

1) 1 only
2) 2 and 3 only
3) 1 and 3 only
4) 1, 2 and 3

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Q. What is Aditya-L1 that is often mentioned in news?
1) Rover sent to Mars by Indian Space Research Organisation (ISRO)
2) Half-humanoid developed by ISRO for mission Gaganyaan.
3) ISRO's first scientific expedition to study the Sun.
4) ISRO's first telescope to study the outer atmosphere of Sun.

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Q. You buy a bottle of packed water on a street and end up emptying the bottle. What will you do?
1) Will keep the bottle and dispose in a garbage bin
2) Will throw it as you go along
3) Will throw it in a drain
4) Will find a dirty place and throw it there

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Q. Energy conservation is very important today because -
1) Sources of conventional energy are fast debleting
2) Electrical energy has become more expensive
3) Electrical energy consumption is increasing
4) None of the above

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Q. Which one of the following is known as Earth Summit?
1) United Nations Framework Convention on Climate change
2) United Nations Conference on Environment and Development
3) Convention on Biological Diversity
4) None of the above

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Q. First World climate conference was organised in -
1) 1978 in Geneva
2) 1979 in Geneva
3) 1980 in Geneva
4) 1977 in Geneva

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Q. Which of the following gas has highest contribution in global warming?
1) Carbon-di-oxide
2) Chlorofluorocarbon
3) Nitro us oxide
4) Methane

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Q. Who was the father of Indian Space Programme?
1) Dr. Vikram Ambalal Sarabhai
2) Dr. Satish Dhawan
3) Dr. Homi J. Bhabha
4) Dr. Krishnaswami Kasturirangan

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Q. Which of the following is Academic Institute Satellite?
1) CARTOSAT-2B
2) KALPANA-1
3) INSAT-2E
4) SATYABAMASAT

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Career Scope in Interior Design

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Commonwealth of Independent States (CIS)

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What is Bitcoin?

In 2009, an unknown programmer by the name of Satoshi Nakamoto put forward a whitepaper that proposed a creation of new form of digital currency - cryptocurrency. Cryptocurrency functions the same way as regular currencies do in that its used as a means of exchange, unit of account and a store of va →

Food Safety and Standards Authority of India (FSSAI)

Headquarter: New Delhi Function and Objective of the Organization: The Food Safety and Standards Authority of India (FSSAI)has been established under Food Safety and Standards Act, 2006 which consolidates various acts & orders that have hitherto handled food-related issues in various Ministries →