IRRSP - Study Guide Questions and Correct
Answers
Question 1
The high-vacuum envelope is used to reduce:
A. Scatter of the radiation produced
B. The problems of electrons colliding with, and being absorbed by, molecules of air
C. The loss of energy within the filters
D. The production of several X-Radiation energies when striking the anode target
Correct Answer
B. The problems of electrons colliding with, and being absorbed by molecules of air.
Question 2
A type of radiation that directly or indirectly displaces electrons from the original shell
belt of atoms is called _____________ radiation.
A. Ionizing
B. Non-ionizing
C. Electrostatic
D. Low Level
Correct Answer
A. Ionizing
Question 3
Historically, it has been proven that the predominant cause of overexposure is:
A. Improper surveys
B. The source being left in an uncontrolled state
C. The source not being locked once retracted to the shielded position.
D. All of the Above
Correct Answer
D. All of the Above
Page 1 of 22
,Question 4
When conducting radiographic operations, which of the following must those
individuals who are involved in the operation have with them at all times?
A. Pocket Dosimeter
B. Film Badge
C. Rate Alarm
D. Survey Meter
E. All of the Above
Correct Answer
E. All of the Above
Question 5
When may radiography be performed without posting the radiation area?
A. When direct Surveillance is maintained.
B. In an exposure room
C. Never.
D. During short exposures.
Correct Answer
C. Never.
Question 6
A high radiation area boundary needs to be posted at an area where no one could
receive a dose of more than _____________ in any one hour
A. 2 mrem
B. 5 mrem
C. 5 mR/hr
D. 100 mrem
Correct Answer
D. 100 mrem
Page 2 of 22
, Question 7
X-rays are produced by an x-ray tube by the:
A. Radioactive source inside the tube
B. Passage of electrons striking radium
C. Passage of electrons across the tube striking the target
D. Radioisotope inner chamber
Correct Answer
C. Passage of electrons across the tube striking the target.
Question 8
What is the unit of measure of ionization in air due to the passage of gamma or x-
radiation?
A. Inch
B. Pressure per square inch
C Roentgen
D. Protons per atom
Correct Answer
C. Roentgen
Question 9
Which of the following detects, measures or in some way records ionizing radiation?
A. Thermoluminescent dosimeter
B. Film Badge
C. Dosimeter
D. Survey Meter
E. Rate alarm
F. All of the above
Correct Answer
F. All of the above
Page 3 of 22
Answers
Question 1
The high-vacuum envelope is used to reduce:
A. Scatter of the radiation produced
B. The problems of electrons colliding with, and being absorbed by, molecules of air
C. The loss of energy within the filters
D. The production of several X-Radiation energies when striking the anode target
Correct Answer
B. The problems of electrons colliding with, and being absorbed by molecules of air.
Question 2
A type of radiation that directly or indirectly displaces electrons from the original shell
belt of atoms is called _____________ radiation.
A. Ionizing
B. Non-ionizing
C. Electrostatic
D. Low Level
Correct Answer
A. Ionizing
Question 3
Historically, it has been proven that the predominant cause of overexposure is:
A. Improper surveys
B. The source being left in an uncontrolled state
C. The source not being locked once retracted to the shielded position.
D. All of the Above
Correct Answer
D. All of the Above
Page 1 of 22
,Question 4
When conducting radiographic operations, which of the following must those
individuals who are involved in the operation have with them at all times?
A. Pocket Dosimeter
B. Film Badge
C. Rate Alarm
D. Survey Meter
E. All of the Above
Correct Answer
E. All of the Above
Question 5
When may radiography be performed without posting the radiation area?
A. When direct Surveillance is maintained.
B. In an exposure room
C. Never.
D. During short exposures.
Correct Answer
C. Never.
Question 6
A high radiation area boundary needs to be posted at an area where no one could
receive a dose of more than _____________ in any one hour
A. 2 mrem
B. 5 mrem
C. 5 mR/hr
D. 100 mrem
Correct Answer
D. 100 mrem
Page 2 of 22
, Question 7
X-rays are produced by an x-ray tube by the:
A. Radioactive source inside the tube
B. Passage of electrons striking radium
C. Passage of electrons across the tube striking the target
D. Radioisotope inner chamber
Correct Answer
C. Passage of electrons across the tube striking the target.
Question 8
What is the unit of measure of ionization in air due to the passage of gamma or x-
radiation?
A. Inch
B. Pressure per square inch
C Roentgen
D. Protons per atom
Correct Answer
C. Roentgen
Question 9
Which of the following detects, measures or in some way records ionizing radiation?
A. Thermoluminescent dosimeter
B. Film Badge
C. Dosimeter
D. Survey Meter
E. Rate alarm
F. All of the above
Correct Answer
F. All of the above
Page 3 of 22
