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State PSC Science & Technology — practice questions — page 6

Explore 311 free Science & Technology questions in State PSC Science. Open each question or exercise to read its content, reference answers and available explanation.

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Science & Technology questions and exercises with answers

Showing questions 151–180 of 311.

Which nuclear power reactor is in Karnataka?Read the answer and worked solution →Nuclear fusion, the Sun's energy source, most commonly fuses hydrogen isotopes into:Read the answer and worked solution →The hydrogen bomb is based on:Read the answer and worked solution →Catch the renewable sourcesRead the answer and worked solution →Pop the nuclear reactor sitesRead the answer and worked solution →Run the energy numbersRead the answer and worked solution →Slice the energy wordsRead the answer and worked solution →Renewable or finiteRead the answer and worked solution →Sort the energy sourcesRead the answer and worked solution →Type the numberRead the answer and worked solution →Sources of energy bingoRead the answer and worked solution →Sunlight and air are examples of which kind of natural resource?Read the answer and worked solution →Coal, petroleum and natural gas are called fossil fuels because they formed from:Read the answer and worked solution →The dense wetland forests that became coal were buried about how many years ago?Read the answer and worked solution →The slow conversion of dead vegetation into coal is called:Read the answer and worked solution →Which coal product is an almost pure form of carbon used in steel making?Read the answer and worked solution →Coal tar is a mixture of about how many substances?Read the answer and worked solution →Naphthalene balls that repel moths are obtained from:Read the answer and worked solution →Which petroleum product has replaced coal tar for metalling roads?Read the answer and worked solution →Coal gas was first used for street lighting in 1810 in:Read the answer and worked solution →The word petroleum derives from petra and oleum, meaning:Read the answer and worked solution →Petroleum formed from the remains of organisms living in:Read the answer and worked solution →In underground deposits, the petroleum and gas layer lies above water because oil and gas are:Read the answer and worked solution →The world's first oil well was drilled in 1859 in:Read the answer and worked solution →Oil was first struck in India in 1867 at:Read the answer and worked solution →Which fossil fuel is stored at high pressure as CNG and is a cleaner transport fuel?Read the answer and worked solution →Hydrogen obtained from natural gas is used to make which fertiliser?Read the answer and worked solution →Because of its great commercial importance, petroleum is also called:Read the answer and worked solution →A CNG pipeline network supplying homes exists in parts of Delhi and which Gujarat city?Read the answer and worked solution →Natural gas in India has been found in Rajasthan, Maharashtra, the Krishna Godavari delta and:Read the answer and worked solution →

Worked practice questions

Which nuclear power reactor is in Karnataka?

  1. Trombay
  2. Kaiga
  3. Narora
  4. Tarapur
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Correct answer: B. Kaiga

1. Narora is in UP and Tarapur in Maharashtra. 2. Kaiga is in Karnataka. 3. Nuclear gives under 3 per cent of India's capacity. _Source: syllabus Science, Chapter 14, Sources of Energy._

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Nuclear fusion, the Sun's energy source, most commonly fuses hydrogen isotopes into:

  1. Carbon
  2. Oxygen
  3. Helium
  4. Lithium
Show answer and solution

Correct answer: C. Helium

1. Lighter nuclei join into a heavier one. 2. Hydrogen fuses into helium. 3. Extreme temperature and pressure are needed. _Source: syllabus Science, Chapter 14, Sources of Energy._

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The hydrogen bomb is based on:

  1. Controlled fission
  2. Chemical combustion
  3. Radioactive decay
  4. Thermonuclear fusion
Show answer and solution

Correct answer: D. Thermonuclear fusion

1. A fission bomb at its core raises the temperature. 2. Light nuclei then fuse. 3. It is thermonuclear fusion. _Source: syllabus Science, Chapter 14, Sources of Energy._

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