ASNT IRRSP STUDY GUIDE -INDUSTRIAL RADIOGRAPHY RADIATION
SAFETY|QUESTIONS AND VERIFIED ANSWERS|GRADED A+|PASS
ON FIRST ATTEMPT|BRAND NEW 2026/2027 UPDATE!!!!!
The Symbol R means:
a. rem
b. rad
c. roentgen
d. radiation - ANSWER c. roentgen
The acronym rad means:
a. radiation absorbed dose
b. roentgen absorbed dose
c. roentgen acquired dose
d. radiation at death - ANSWER a. radiation absorbed dose
The roentgen (R) exposure is measured in:
a. tissue
b. water
c. a lab
d. air - ANSWER d. air
The symbol mR means:
1
,a. milliroentgen
b. microroentgen
c. megaroentgen
d. millirem - ANSWER a. milliroentgen
One roentgen or 1 R is equal to:
a. 100 milliroentgen
b. 1000 milliroentgen
c. 0.001 milliroentgen
d. 1 milliroentgen - ANSWER b. 1000 milliroentgen
The acronym rem stands for:
a. radiation equivalent man
b. radiation effect man
c. roentgen effect man
d. roentgen equivalent man - ANSWER d. roentgen equivalent man
The initialism QF stands for:
a. quantity factor
b. quality frequency
c. quality factor
d. quality effective factor - ANSWER c. quality factor
The quality factor for X-rays and gamma rays is:
2
,a. 1
b. 2
c. 10
d. 20 - ANSWER a. 1
The quality factor for alpha (ray) particles is:
a. 1
b. 2
c. 10
d. 20 - ANSWER d. 20
Activity of radioactive material is measured in:
a. curies
b. roentgens
c. sieverts
d. grays - ANSWER a. 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 c. decay rate
3
, Atoms that have excess energy and are unstable are known as:
a. radioactive
b. radioactivity
c. balanced
d. weighted - ANSWER a. radioactive
Elementary particles 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 a. 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 b. protons
Uncharged elementary particles with a mass nearly equal to that of a proton are called:
a. electrons
b. protons
c. neutrons
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SAFETY|QUESTIONS AND VERIFIED ANSWERS|GRADED A+|PASS
ON FIRST ATTEMPT|BRAND NEW 2026/2027 UPDATE!!!!!
The Symbol R means:
a. rem
b. rad
c. roentgen
d. radiation - ANSWER c. roentgen
The acronym rad means:
a. radiation absorbed dose
b. roentgen absorbed dose
c. roentgen acquired dose
d. radiation at death - ANSWER a. radiation absorbed dose
The roentgen (R) exposure is measured in:
a. tissue
b. water
c. a lab
d. air - ANSWER d. air
The symbol mR means:
1
,a. milliroentgen
b. microroentgen
c. megaroentgen
d. millirem - ANSWER a. milliroentgen
One roentgen or 1 R is equal to:
a. 100 milliroentgen
b. 1000 milliroentgen
c. 0.001 milliroentgen
d. 1 milliroentgen - ANSWER b. 1000 milliroentgen
The acronym rem stands for:
a. radiation equivalent man
b. radiation effect man
c. roentgen effect man
d. roentgen equivalent man - ANSWER d. roentgen equivalent man
The initialism QF stands for:
a. quantity factor
b. quality frequency
c. quality factor
d. quality effective factor - ANSWER c. quality factor
The quality factor for X-rays and gamma rays is:
2
,a. 1
b. 2
c. 10
d. 20 - ANSWER a. 1
The quality factor for alpha (ray) particles is:
a. 1
b. 2
c. 10
d. 20 - ANSWER d. 20
Activity of radioactive material is measured in:
a. curies
b. roentgens
c. sieverts
d. grays - ANSWER a. 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 c. decay rate
3
, Atoms that have excess energy and are unstable are known as:
a. radioactive
b. radioactivity
c. balanced
d. weighted - ANSWER a. radioactive
Elementary particles 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 a. 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 b. protons
Uncharged elementary particles with a mass nearly equal to that of a proton are called:
a. electrons
b. protons
c. neutrons
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