Practice Questions and Answers Latest
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Which of the following is the best way to reduce radiation exposure?
A) Standing close to the radiation source
B) Removing protective equipment
✔✔C) Increasing distance, using shielding, and limiting time exposed
D) Ignoring safety procedures
Which type of radiation can penetrate the farthest?
A) Alpha
B) Beta
✔✔C) Gamma
D) Ultraviolet
What is the purpose of time, distance, and shielding in radiation protection?
A) To increase radiation exposure
✔✔B) To reduce radiation dose and exposure risk
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,C) To make radiation more effective
D) To measure radiation levels
Which type of radiation can be stopped by a thick sheet of lead?
A) Alpha
B) Beta
✔✔C) Gamma
D) Infrared
Why is personal protective equipment (PPE) important in radiation protection?
A) It increases exposure tolerance
B) It helps absorb radiation into the body
✔✔C) It reduces exposure to radiation hazards
D) It allows workers to ignore safety protocols
What does a dosimeter measure?
A) Body temperature
✔✔B) Radiation exposure levels
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,C) Blood pressure
D) Chemical contamination
Which type of radiation is most dangerous if inhaled or ingested?
✔✔A) Alpha
B) Beta
C) Gamma
D) X-rays
Why is shielding necessary when working around radiation?
A) It increases the energy of radiation
✔✔B) It helps absorb or block radiation to reduce exposure
C) It allows workers to ignore other safety measures
D) It prevents contamination from all hazardous materials
Which of the following is an example of natural background radiation?
✔✔A) Cosmic rays from space
B) Radiation from X-ray machines
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, C) Radiation from nuclear reactors
D) Radiation from medical imaging
What is the best way to monitor radiation exposure over time?
A) Estimating exposure based on work hours
✔✔B) Wearing a personal dosimeter
C) Checking for physical symptoms
D) Only measuring exposure when feeling unwell
How can you reduce internal radiation exposure?
✔✔A) Avoid inhaling or ingesting radioactive materials
B) Stand closer to the radiation source
C) Work without a respirator
D) Ignore safety training
Which of the following is NOT a source of man-made radiation?
A) Medical X-rays
B) Nuclear power plants
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