IRRSP PRACTICE TEST |66 QUESTIONS AND ANSWERS.

CHAPTER 1 D. All the above 1. In the early years of Radiography, what caused personnel to be overexposed? A. Poor equipment design B. Lack of understanding C. Lack of and poor safety practices D. All the above D. Late in 1898 2. In what year did Marie Curie discover Radium? A. The beginning of 1896 B. The end of 1897 C. The beginning of 1898 D. Late in 1898 A. Marie and Pierre Curie 3. Who coined the term Radioactivity A. Marie and Pierre Curie B. Henry Becquerel C. Ernest Rutherford D. Wilhelm Roentgen C. 3 in (7.62 cm) 4. In the early years of radiography from , the maximum thickness that could be inspected via x-radiation was________ of steel? A. 1 in. (2.54cm) B. 2 in. (5.08 cm) C. 3 in. (7.62 cm) D. 10 in. (25.4 cm) D. All of the above 5. Historically, it has been proven that the predominant cause of overexposure is: A. Improper surveys B. Th source being left in an uncontrolled state C. The source not being locked once retracted to the shielded position. D. All of the above A. The radiographer 6. The responsibility to adhere to the regulations, license conditions and company policies falls to: A. The radiographer B. The assistant radiographer C. The Radiation Safety Officer D. All radiation workers C. Ernest Rutherford 7. Alpha particles were discovered by: A. Marie Curie B. Pierre Curie C. Ernest Rutherford D. Henri Becquerel D. Massachusetts General 8. The first medical X-ray was conducted at: A. Berlin Memorial Hospital B. Oslow General C. Boston General D. Massachusetts General A. True 9. Regulations from one state to the next are essentially the same for radioactive materials. A. True B. False B. Their radiation safety officer 10. A radiographer has several avenues to seek guidance and counsel. The first person he or she can turn to is? A. Their state or federal jurisdictions hotline B. Their program's radiation safety officer C. A senior technician D. The NRC B. Wilhelm Roentgen 11. The origins of industrial radiography can be attributed to: A. Henri Becquerel B. Wilhelm Roentgen C. Ernest Rutherford D. Pierre Curie C. Particulate and Electromagetic CHAPTER TWO 1. The two basic types of radiation are: A. Audible and Visible B. Sub-light and faster than light. C. Particulate and electromagnetic D. Energetic and prolific B. At the speed of light without regard to pressure, temperature or magnetic fields. 2. Wavelike radiation travels at: A. Just slightly below the speed of light as atmospheric conditions are not constant. B. At the speed of light without regard to pressure, temperature or magnetic fields. C. In a wavelike motion allowing it curve around objects D. At subsonic speeds nearly 3280.84 ft/s (1000 m/s) B. 186000 miles/s (299338 km/s) 3. Gamma rays travel in a wavelike motion at the speed of light which is: A. 3280.84 ft/s (1000 m/s) B. 186000 miles/s (299338 km/s) C. 610236.22 ft/s (186000 m/s) D. 1000 miles/s (1609.34 km/s) A. True 4. Matter can be turned into energy. A. True B. False A. Two protons and two neutrons 5. Alpha particles are much like a helium nucleus as they have: A. Two protons and two neutrons B. One proton and one neutron C. Two protons, two neutrons and two electrons D. One proton , one neutron and one electron A. Positive charge 6. Alpha particles have a/an: A. Positive charge B. Negative charge C. Neutral charge D. Alternating charge from positive to negative B. Negative charge 7. Beta particles have a/an: A. Positive charge B. Negative charge C. Neutral charge D. Alternating charge from positive to negative D. Much less than that of an alpha particle 8. Beta particles have a mass: A. Equal to 1840 times that of an alpha particle B. Equal to that of an alpha particle C. Much greater than that of an alpha particle D. Much less than that of an alpha particle C. They travel at sub-light speeds and as such are easily contained and shielded 9. In modern radiography the alpha and beta particles are of little concern because: A. They have very little mass and energy and thus they are not harmful B. They travel at sub-light speeds and as such pass right through us C. They travel at sub-light speeds and as such are easily contained and shielded D. Materials used in modern radiography do not emit alpha or beta particles D. High-voltage direct current across the cathode of a vacuum tube 10. X-radiation is created by applying a: A. Low voltage of direct current across the filament of a vacuum tube B. High-voltage alternating current across the cathode of a vacuum tube C. Low-voltage alternating current across the target of a vacuum tube D. High-voltage direct current across the cathode of a vacuum tube C. Passage of electrons across the tube striking the target 11. X-rays are produced by an X-ray tube by the: A. Radioactive source inside the tube B. Passage of electrons striking the radium target C. Passage of electrons across the tube striking the target D. Radioisotope inner chamber B. Nonionizing radiation 12. Radio waves, microwaves and infrared waves are types of: A. Ionizing radiation B. Nonionizing radiation C. Visible light waves D. Non-visible light waves A. 1 AMU 13. The neutron has an atomic mass of: A. 1 AMU B. 10 AMU C. 1000 AMU D. 1840 AMU A. Primary beams have greater penetrability than secondary beams 14. The shorter the wavelength or higher the frequency, the greater the penetration; as such: A. Primary beams have greater penetrability than secondary beams B. Secondary beams have greater penetrability than primary beams C. Scatter beams have greater penetrability than secondary beams D. All beams have the same wavelength and are essentially the same