ASNT Study Guide - Industrial Radiography
Radiation Safety / Key Questions with
100%Correct Answers.
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:
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:
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
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
Radiation Safety / Key Questions with
100%Correct Answers.
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:
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:
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
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
