Tag: chemistry

Questions Related to chemistry

The degree and kind of damage due to radiation varies in which of the following ways?

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. kind of radiation

  2. duration of exposure

  3. amount of radiation

  4. All of the above

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Correct Option: D
Explanation:

All of the above 

The degree of damage due to radiation depends on kind of radiation, duration of exposure and amount of radiation. 

The wastes generated from hospitals and industry, as well as the nuclear fuel cycle are generally known as 

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. High-level waste

  2. Low-level waste

  3. Intermediate-level waste

  4. None of the above

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Correct Option: B
Explanation:

Low level waste 

Waste contaminated with radioactive material, from hospitals like needle, syringes, medical tubes etc and from industries comes under low level waste. 

Currently, nuclear power provides approximately ___ of the world's energy.

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. Less than 1%

  2. About 11%

  3. About one-third

  4. Nearly 75%

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Correct Option: B
Explanation:

Nuclear energy now provides about 11% of the worlds electricity from about 450 nuclear power reactors. 

Spent fuel rods and obsolete nuclear weapons are examples of 

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. decommissioned waste

  2. high-level nuclear waste

  3. low-level nuclear waste

  4. recycled nuclear waste

  5. itinerant nuclear waste

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Correct Option: B
Explanation:

High level nuclear waste 

High level radioactive waste are the highly radioactive materials that produced as a byproduct of the reactions that occur inside nuclear reactor. Spent fuel and obsolete nuclear weapons are example of high lever nuclear waste. 

Which type of bag is general waste put into?

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. Containers lined with black bags

  2. Containers lined with clear bags

  3. Sharp containers

  4. Containers lined with yellow bags

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Correct Option: A
Explanation:

Containers lined with black bags 

A typical black bin bag used for general waste. 

The various types of nuclear reactors that have been constructed to furnish heat for the production of steam differ from each other in what ways? 

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. In what kind of moderator is used

  2. How the reactor core is cooled

  3. How the heat energy is used to generate steam

  4. They can differ in all of the above ways

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Correct Option: D
Explanation:

They can differ in all the above ways 

A nuclear reactor can be classified depends on the moderator used, reactor core cooling method, use of heat energy and many more. 

The natural uranium ore is processed and enriched at the Nuclear Fuel complex at

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. Kolkata

  2. Mumbai

  3. Hyderabad

  4. none of these

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Correct Option: C
Explanation:

Nuclear fuel complex is located in Hyderabad. It was established in 1971 as a major industrial unit of India's Department of Atomic Energy.

Which of the following hazards is not associated with a liquid metal breeder reactor (LMFBR)?

chemistry nuclear physics hazards and safety measures of radiations harmful effects and safety precautions for radiations energy production

  1. little fissionable material is formed

  2. a sodium explosion occurs if it comes in contact with water

  3. the plutonium by-product can be made into nuclear weapons and, therefore, poses a security risk

  4. all of the above are hazards associated with the LMFBR

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Correct Option: A
Explanation:

A

Liquid Metal Fast brecedes reactor (LMFBR) is a nuclear reactor capable of producing more fissile product than it takes in. 

German silver is a mixture of :

chemistry d and f block elements solid solutions formation of complex compounds and constituent of catalysts general characteristics of first transition series

  1. copper and zinc

  2. copper and tin

  3. copper, nickel and zinc

  4. aluminium, copper and traces of Mg and Mn

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Correct Option: C
Explanation:

German silver is a mixture approximately 60% of Cu, 20% of Zn  and 20% of Ni.

Stainless steel contains:

chemistry d and f block elements solid solutions formation of complex compounds and constituent of catalysts general characteristics of first transition series

  1. Cu and Zn

  2. Cu and Sn

  3. Pb and Sn

  4. Fe, C, Cr and Ni

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Correct Option: D
Explanation:

Stainless steel is a metal alloy made up of steel mixed with elements such as chromium, nickel, molybdenum, silicon, aluminium, and carbon. 


Iron mixed with carbon to produce steel is the main component of stainless steel. Chromium is added to make it resistant to rust.