Tag: hazards and safety measures of radiations

Questions Related to hazards and safety measures of radiations

The rad is the correct unit used to report the measurement of 

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

  1. the rate of decay of radioactive source

  2. the ability of a beam of gamma ray photons to produce ions in a target

  3. the energy delivered by radiation to a target.

  4. the biological effect of radiation

Show answer
Correct Option: D
Explanation:

Rad is the unit of absorbed dose of ionizing radiation. One rad is equal approximately to the absorbed dose delivered when soft tissue is exposed to one-roentgen of medium-voltage radiation.  Thus this is the bilogical effect of radiation. 

Radiation exposure comes from

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

  1. Background Sources

  2. Manmade sources

  3. Medical processes

  4. All of the above

Show answer
Correct Option: D
Explanation:

Because of Man made processes , there will be radiation exposure. For example we can take bricks , it causes radiation

Because of Medical processes , we will get several radiation exposures . For example X ray radiation etc
Background sources also causes radiation
Therefore option $D$ is correct

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

Show answer
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

Show answer
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

Show answer
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. 

The effective area of a black body is 0.1 $m^2$ and its temperature is 1000 K. The amount of radiations emitted by it per min is -

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

  1. 1.34 k-cal

  2. 81 k-cal

  3. 5.63 k-cal

  4. 1.34 k-J.

Show answer
Correct Option: B
Explanation:

$\begin{array}{l} \dfrac { { d\emptyset  } }{ { dt } } =A6T{ Y^{ 4 } } \ =81\, \, kcal \end{array}$

India's first atomic power station is

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

  1. BARC

  2. Tarapur atomic power station

  3. Narora atomic power station

  4. none of these

Show answer
Correct Option: B
Explanation:

Tarapur Atomic Power Station (T.A.P.S) was the first nuclear power plant in India. The construction of the plant was started in 1962 and the plant went operation in 1969. It is the world's oldest nuclear power plant in commercial operation. It was build for the departments of Atomic Energy by General Electric and Bechtel.

In India, uranium is found in

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

  1. U.P.

  2. M.P.

  3. Bihar

  4. Orissa

Show answer
Correct Option: C
Explanation:

Bihar 

 The earliest reference to a uranium mineral in India appeared in a German publication in 1860 in which Emil Stoehr recorded its occurrence at Lapso hill Singhbhum District, Bihar. The most important minerals of uranium has been located around Jadugora, Singbhum District of BIhar.






What percentage of energy requirement of India is met by nuclear power stations?

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

  1. 3%

  2. 5%

  3. 10%

  4. 20%

Show answer
Correct Option: A
Explanation:

3%

Nuclear reactor provide 3 per cent of the total electricity generation. Despite its rather meagre contribution, nuclear energy holds sustantive promise from the perspective of meeting India's humbingous energy needs in a secure, sustainable low carbon way.

Identify the correct statement/statements :
a) Radiation causes genetic mutation
b) Restriction in blood circulation can be detected using radio-iodine
c) Hydrocarbon plastics are used as moderators in a nuclear reactor
d) The damage caused due to $\alpha$-radiation is small due to its small penetrating power

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

  1. a,b,c

  2. a,c,d

  3. b,c,d

  4. a,b,d

Show answer
Correct Option: B
Explanation:

a]  is true
c]  fast neutrons produced collides with the particles of
     moderator to slow down
d]  penetration power of $\alpha$ particle is smallest