MCQ Bank

Existing exposure refers to radiation exposure that already exists when a decision on the need for control has to be taken, such as exposure to natural background radiation.

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Q41

Exposure due to fallout from past testing of nuclear weapons and generation of electricity in nuclear power plants constitutes less than ________.

A) 0.4%
B) 0.3%
C) 0.2%
D) 0.5%

AI Explanation

Radiation exposure resulting from historical nuclear weapons fallout and nuclear power generation typically constitutes less than 0.5% of the total public exposure.

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Q42

In the case of antibody-antigen binding the inverted dissociation constant is used and is called ____________ constant.

A) Antigen
B) Affinity
C) Antibody
D) Diffinity

AI Explanation

The affinity constant is defined as the reciprocal or inverse of the dissociation constant for an antibody-antigen binding reaction, reflecting the strength of the interaction.

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Q43

Short-lived electrical events called ____________occur in several types of animal cells.

A) Plain potentials
B) Mechanical Potentials
C) Action potentials
D) Electrical potentials

AI Explanation

Action potentials are brief, rapid electrical impulses generated across the cell membranes of excitable animal cells, such as neurons and muscle cells.

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Q44

__________is a protein visualization technique applied in combination with affinity chromatography.

A) Western Blotting
B) Northern Blotting
C) Immunoblotting
D) Southern Blotting

AI Explanation

Western blotting is a common protein detection technique frequently paired with affinity chromatography to identify specific target proteins from a complex mixture.

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Q45

In ____________ relatively large nuclei of uranium or plutonium, are split.

A) Nuclear fission
B) Nuclear energy
C) None of these
D) Nuclear fusion

AI Explanation

Nuclear fission is the nuclear reaction in which heavy atomic nuclei, such as those of uranium or plutonium, split into smaller fragments accompanied by a large release of energy.

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Q46

ICRP stands for_______________

A) International Committee on Radiation Protection
B) International Committee on Radiation Production
C) International Committee on Radius Protection
D) International Committee on Rodon Protection

AI Explanation

ICRP stands for the International Commission on Radiological Protection (commonly referenced as the International Committee on Radiation Protection), an independent organization that provides recommendations and guidance on radiation safety.

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Q47

Radiation arising from human activities typically accounts for about _________ of public exposure.

A) 90%
B) 70%
C) 20%
D) 50%

AI Explanation

Human-made sources of radiation, including medical procedures and industrial activities, typically contribute about 20% of the total public radiation exposure.