IRRSP Actual Exam IRRSP Exam

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The symbol R means:

• Rem
• Rad
• Roentgen
• Radiation -ANSWER-Roentgen

The acronym rad means:

• Radiation Absorbed Dose
• Roentgen Absorbed Dose
• Roentgen Acquired Dose
• Radiation At Death -ANSWER-Radiation Absorbed Dose

The roentgen (R) exposure is measured in:

• Tissue
• Water
• A lab
• Air -ANSWER-Air

The symbol mR means:

• Milliroentgen
• Microroentgen
• Megaroentgen
• Millirem -ANSWER-Milliroentgen

One roentgen or 1 R is equal to:

• 100 mR

• 1000 mR
• 0.001 mR
• 1 mR -ANSWER-1000 mR

The acronym rem stands for:

• Radiation Equivalent Man
• Radiation Effect Man
• Roentgen Effect Man
• Roentgen Equivalent Man -ANSWER-Roentgen Equivalent Man

The initialism QF stands for:

• Quantity factor
• Quality frequency
• Quality factor
• Quality effective factor -ANSWER-Quality factor

The quality factor for X-rays and gamma rays is:

• 1
• 2
• 10
• 20 -ANSWER-1

The quality factor for alpha(ray) particles is:

• 1
• 2
• 10
• 20 -ANSWER-20

Activity of radioactive material is measured in:

• Curies
• Roentgens
• Sieverts

• Grays -ANSWER-Curies

Becquerels and Curies are units of measurement of:

• Physical size of the source
• Gray per hour
• Decay rate
• Roentgen per hour -ANSWER-Decay rate

Atoms that have excess energy and are unstable are known as:

• Radioactive
• Radioactivity
• Balanced
• Weighted -ANSWER-Radioactive

Elementary particle units with a negative electrical charge and a mass

approximately equal to 1/1840 that of a proton are:

• Electrons
• Protons
• Neutrons
• Valence shells -ANSWER-Electrons

Positively charged elementary particles with a mass approximately

equal to 1840 times that of an electron, or 1 AMU, are known as:

• Electrons
• Protons
• Neutrons
• Valence shells -ANSWER-Protons

Unchanged elementary particles with a mass nearly equal to that of a

proton are called:

• Electrons
• Protons

• Neutrons
• Valence shells -ANSWER-Neutrons

The area known as the center of an atom is called the:

• Electron
• Nucleus
• Proton
• Neutron -ANSWER-Nucleus

Any byproduct material that is encased in a capsule designed to

prevent leakage or escape of the byproduct material is a:

• Drum
• Pig
• Sealed source
• Container -ANSWER-Sealed source

A tube through which the radioactive source travels when inside a

radiographic exposure device is a/an:

• Port tube
• Guide tube
• S tube
• Exit tube -ANSWER-S tube

Survey meters must be calibrated at intervals not to exceed: (Answer

with A, B, C, or D)

• Three months and/or after instrument servicing except for battery

changes

• Six months and/or after instrument servicing except for battery

changes

• Annually and after instrument servicing except for battery changes
• Daily and after instrument servicing except for battery changes -

ANSWER-B