ASNT Study Guide - Industrial Radiography Radiation
Safety | 225 Questions | 100% Correct Answers
In the early years of radiography, what caused the personnel to be overexposed? Correct Answer:
a. poor equipment design
b. lack of understanding
c. a lack and poor safety pratices
d. all of the above
In what year did Maria Curie discover radium? Correct Answer: The beginning of 1898
Who coined the term radioactivity? Correct Answer: Marie and Pierre Curie
In the early years of radiography from 1920-1930 the maximum thickness that could be
inspected via X-radiation was ____________of steel? Correct Answer: 3 in (7.62cm)
Historically, it has been proven that the predominant cause of overexposures is: Correct Answer:
a. improper surveys
b. the source being left in an uncontrolled state
c. the source not being locked once retracted to the shielded position.
d. all of the above
The responsibility to adhere to the regulations, license conditions and company policies falls to:
Correct Answer: a. radiographer
Alpha particles were discovered by Correct Answer: Ernest Ruthford
The first medical X-ray was conducted at: Correct Answer: Massachusetts General
Regulations from one state to the next are essentially the same for radioactive materials. Correct
Answer: True
The origins of industrial radiography can be attributed to Correct Answer: Wilhelm Rontgen
The Symbol R means:
a. rem
b. rad
c. roentgen
d. radiation Correct Answer: c. roentgen
The acronym rad means:
a. radiation absorbed dose
,b. roentgen absorbed dose
c. roentgen acquired dose
d. radiation at death Correct Answer: a. radiation absorbed dose
The roentgen (R) exposure is measured in:
a. tissue
b. water
c. a lab
d. air Correct Answer: d. air
The symbol mR means:
a. milliroentgen
b. microroentgen
c. megaroentgen
d. millirem Correct Answer: a. milliroentgen
One roentgen or 1 R is equal to:
a. 100 milliroentgen
b. 1000 milliroentgen
c. 0.001 milliroentgen
d. 1 milliroentgen Correct 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 Correct Answer: d. roentgen equivalent man
The initialism QF stands for:
a. quantity factor
b. quality frequency
c. quality factor
d. quality effective factor Correct Answer: c. quality factor
The quality factor for X-rays and gamma rays is:
a. 1
b. 2
c. 10
d. 20 Correct Answer: a. 1
,The quality factor for alpha (ray) particles is:
a. 1
b. 2
c. 10
d. 20 Correct Answer: d. 20
Activity of radioactive material is measured in:
a. curies
b. roentgens
c. sieverts
d. grays Correct 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 Correct Answer: c. decay rate
Atoms that have excess energy and are unstable are known as:
a. radioactive
b. radioactivity
c. balanced
d. weighted Correct 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 Correct 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 Correct Answer: b. protons
Uncharged elementary particles with a mass nearly equal to that of a proton are called:
, a. electrons
b. protons
c. neutrons
d. valence shells Correct Answer: c. neutrons
The area known as the center of an atom is called the:
a. electron
b. nucleus
c. proton
d. neutron Correct Answer: b. 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 Correct Answer: c. 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 Correct Answer: c. S tube
Survey meters must be calibrated at intervals not to exceed:
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 Correct Answer: b. six months
and/or after instrument servicing except for battery changes
A survey meter must be capable of measuring a range of:
a. 0 to 1000 mR/h (0 to 10 mSv/h)
b. 2 to 1000 R/h (0.02 to 10 Sv/h)
c. 0 to 1000 R/h (0 to 10 Sv/h)
d. 2 to 1000 mR/h (0.02 to 10 mSv/h) Correct Answer: d. 2 to 1000 mR/h (0.02 to 10 mSv/h)
Becquerels and curies are units of measurement of:
a. physical size of the source
Safety | 225 Questions | 100% Correct Answers
In the early years of radiography, what caused the personnel to be overexposed? Correct Answer:
a. poor equipment design
b. lack of understanding
c. a lack and poor safety pratices
d. all of the above
In what year did Maria Curie discover radium? Correct Answer: The beginning of 1898
Who coined the term radioactivity? Correct Answer: Marie and Pierre Curie
In the early years of radiography from 1920-1930 the maximum thickness that could be
inspected via X-radiation was ____________of steel? Correct Answer: 3 in (7.62cm)
Historically, it has been proven that the predominant cause of overexposures is: Correct Answer:
a. improper surveys
b. the source being left in an uncontrolled state
c. the source not being locked once retracted to the shielded position.
d. all of the above
The responsibility to adhere to the regulations, license conditions and company policies falls to:
Correct Answer: a. radiographer
Alpha particles were discovered by Correct Answer: Ernest Ruthford
The first medical X-ray was conducted at: Correct Answer: Massachusetts General
Regulations from one state to the next are essentially the same for radioactive materials. Correct
Answer: True
The origins of industrial radiography can be attributed to Correct Answer: Wilhelm Rontgen
The Symbol R means:
a. rem
b. rad
c. roentgen
d. radiation Correct Answer: c. roentgen
The acronym rad means:
a. radiation absorbed dose
,b. roentgen absorbed dose
c. roentgen acquired dose
d. radiation at death Correct Answer: a. radiation absorbed dose
The roentgen (R) exposure is measured in:
a. tissue
b. water
c. a lab
d. air Correct Answer: d. air
The symbol mR means:
a. milliroentgen
b. microroentgen
c. megaroentgen
d. millirem Correct Answer: a. milliroentgen
One roentgen or 1 R is equal to:
a. 100 milliroentgen
b. 1000 milliroentgen
c. 0.001 milliroentgen
d. 1 milliroentgen Correct 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 Correct Answer: d. roentgen equivalent man
The initialism QF stands for:
a. quantity factor
b. quality frequency
c. quality factor
d. quality effective factor Correct Answer: c. quality factor
The quality factor for X-rays and gamma rays is:
a. 1
b. 2
c. 10
d. 20 Correct Answer: a. 1
,The quality factor for alpha (ray) particles is:
a. 1
b. 2
c. 10
d. 20 Correct Answer: d. 20
Activity of radioactive material is measured in:
a. curies
b. roentgens
c. sieverts
d. grays Correct 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 Correct Answer: c. decay rate
Atoms that have excess energy and are unstable are known as:
a. radioactive
b. radioactivity
c. balanced
d. weighted Correct 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 Correct 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 Correct Answer: b. protons
Uncharged elementary particles with a mass nearly equal to that of a proton are called:
, a. electrons
b. protons
c. neutrons
d. valence shells Correct Answer: c. neutrons
The area known as the center of an atom is called the:
a. electron
b. nucleus
c. proton
d. neutron Correct Answer: b. 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 Correct Answer: c. 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 Correct Answer: c. S tube
Survey meters must be calibrated at intervals not to exceed:
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 Correct Answer: b. six months
and/or after instrument servicing except for battery changes
A survey meter must be capable of measuring a range of:
a. 0 to 1000 mR/h (0 to 10 mSv/h)
b. 2 to 1000 R/h (0.02 to 10 Sv/h)
c. 0 to 1000 R/h (0 to 10 Sv/h)
d. 2 to 1000 mR/h (0.02 to 10 mSv/h) Correct Answer: d. 2 to 1000 mR/h (0.02 to 10 mSv/h)
Becquerels and curies are units of measurement of:
a. physical size of the source
