IRRSP Actual Exam 2025 | IRRSP Exam
Update Latest 2025 Questions and
Correct Answers Rated A+
The symbol R means:
a. Rem
b. Rad
c. Roentgen
d. Radiation -ANSWER-Roentgen
The acronym rad means:
a. Radiation Absorbed Dose
b. Roentgen Absorbed Dose
c. Roentgen Acquired Dose
d. Radiation At Death -ANSWER-Radiation Absorbed Dose
The roentgen (R) exposure is measured in:
a. Tissue
b. Water
c. A lab
d. Air -ANSWER-Air
The symbol mR means:
a. Milliroentgen
b. Microroentgen
c. Megaroentgen
d. Millirem -ANSWER-Milliroentgen
One roentgen or 1 R is equal to:
a. 100 mR
,b. 1000 mR
c. 0.001 mR
d. 1 mR -ANSWER-1000 mR
The acronym rem stands for:
a. Radiation Equivalent Man
b. Radiation Effect Man
c. Roentgen Effect Man
d. Roentgen Equivalent Man -ANSWER-Roentgen Equivalent Man
The initialism QF stands for:
a. Quantity factor
b. Quality frequency
c. Quality factor
d. Quality effective factor -ANSWER-Quality factor
The quality factor for X-rays and gamma rays is:
a. 1
b. 2
c. 10
d. 20 -ANSWER-1
The quality factor for alpha(ray) particles is:
a. 1
b. 2
c. 10
d. 20 -ANSWER-20
Activity of radioactive material is measured in:
a. Curies
b. Roentgens
c. Sieverts
,d. Grays -ANSWER-Curies
Becquerels and Curies are units of measurement of:
a. Physical size of the source
b. Gray per hour
c. Decay rate
d. Roentgen per hour -ANSWER-Decay rate
Atoms that have excess energy and are unstable are known as:
a. Radioactive
b. Radioactivity
c. Balanced
d. Weighted -ANSWER-Radioactive
Elementary particle units with a negative electrical charge and a mass
approximately equal to 1/1840 that of a proton are:
a. Electrons
b. Protons
c. Neutrons
d. 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:
a. Electrons
b. Protons
c. Neutrons
d. Valence shells -ANSWER-Protons
Unchanged elementary particles with a mass nearly equal to that of a
proton are called:
a. Electrons
b. Protons
, c. Neutrons
d. Valence shells -ANSWER-Neutrons
The area known as the center of an atom is called the:
a. Electron
b. Nucleus
c. Proton
d. Neutron -ANSWER-Nucleus
Any byproduct material that is encased in a capsule designed to
prevent leakage or escape of the byproduct material is a:
a. Drum
b. Pig
c. Sealed source
d. Container -ANSWER-Sealed source
A tube through which the radioactive source travels when inside a
radiographic exposure device is a/an:
a. Port tube
b. Guide tube
c. S tube
d. Exit tube -ANSWER-S tube
Survey meters must be calibrated at intervals not to exceed: (Answer
with A, B, C, or D)
a. Three months and/or after instrument servicing except for battery
changes
b. Six months and/or after instrument servicing except for battery
changes
c. Annually and after instrument servicing except for battery changes
d. Daily and after instrument servicing except for battery changes -
ANSWER-B
Update Latest 2025 Questions and
Correct Answers Rated A+
The symbol R means:
a. Rem
b. Rad
c. Roentgen
d. Radiation -ANSWER-Roentgen
The acronym rad means:
a. Radiation Absorbed Dose
b. Roentgen Absorbed Dose
c. Roentgen Acquired Dose
d. Radiation At Death -ANSWER-Radiation Absorbed Dose
The roentgen (R) exposure is measured in:
a. Tissue
b. Water
c. A lab
d. Air -ANSWER-Air
The symbol mR means:
a. Milliroentgen
b. Microroentgen
c. Megaroentgen
d. Millirem -ANSWER-Milliroentgen
One roentgen or 1 R is equal to:
a. 100 mR
,b. 1000 mR
c. 0.001 mR
d. 1 mR -ANSWER-1000 mR
The acronym rem stands for:
a. Radiation Equivalent Man
b. Radiation Effect Man
c. Roentgen Effect Man
d. Roentgen Equivalent Man -ANSWER-Roentgen Equivalent Man
The initialism QF stands for:
a. Quantity factor
b. Quality frequency
c. Quality factor
d. Quality effective factor -ANSWER-Quality factor
The quality factor for X-rays and gamma rays is:
a. 1
b. 2
c. 10
d. 20 -ANSWER-1
The quality factor for alpha(ray) particles is:
a. 1
b. 2
c. 10
d. 20 -ANSWER-20
Activity of radioactive material is measured in:
a. Curies
b. Roentgens
c. Sieverts
,d. Grays -ANSWER-Curies
Becquerels and Curies are units of measurement of:
a. Physical size of the source
b. Gray per hour
c. Decay rate
d. Roentgen per hour -ANSWER-Decay rate
Atoms that have excess energy and are unstable are known as:
a. Radioactive
b. Radioactivity
c. Balanced
d. Weighted -ANSWER-Radioactive
Elementary particle units with a negative electrical charge and a mass
approximately equal to 1/1840 that of a proton are:
a. Electrons
b. Protons
c. Neutrons
d. 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:
a. Electrons
b. Protons
c. Neutrons
d. Valence shells -ANSWER-Protons
Unchanged elementary particles with a mass nearly equal to that of a
proton are called:
a. Electrons
b. Protons
, c. Neutrons
d. Valence shells -ANSWER-Neutrons
The area known as the center of an atom is called the:
a. Electron
b. Nucleus
c. Proton
d. Neutron -ANSWER-Nucleus
Any byproduct material that is encased in a capsule designed to
prevent leakage or escape of the byproduct material is a:
a. Drum
b. Pig
c. Sealed source
d. Container -ANSWER-Sealed source
A tube through which the radioactive source travels when inside a
radiographic exposure device is a/an:
a. Port tube
b. Guide tube
c. S tube
d. Exit tube -ANSWER-S tube
Survey meters must be calibrated at intervals not to exceed: (Answer
with A, B, C, or D)
a. Three months and/or after instrument servicing except for battery
changes
b. Six months and/or after instrument servicing except for battery
changes
c. Annually and after instrument servicing except for battery changes
d. Daily and after instrument servicing except for battery changes -
ANSWER-B
