ASNT Study Guide - Industrial Radiography Radiation Safety
1. The Symbol R means:
a. rem
b. rad
c. roentgen
d. radiation✔✔✔roentgen
2. The acronym rad means:
a. radiation absorbed dose
b. roentgen absorbed dose
c. roentgen acquired dose
d. radiation at death✔✔✔radiation absorbed dose
3. The roentgen (R) exposure is measured in:
a. tissue
b. water
c. a lab
d. air✔✔✔air
4. The symbol mR means:
a. milliroentgen
,b. microroentgen
c. megaroentgen
d. millirem✔✔✔milliroentgen
5. One roentgen or 1 R is equal to:
a. 100 milliroentgen
b. 1000 milliroentgen
c. 0.001 milliroentgen
d. 1 milliroentgen✔✔✔1000 milliroentgen
6. The acronym rem stands for:
a. radiation equivalent man
b. radiation effect man
c. roentgen effect man
d. roentgen equivalent man✔✔✔roentgen equivalent man
,7. The initialism QF stands for:
a. quantity factor
b. quality frequency
c. quality factor
d. quality effective factor✔✔✔quality factor
8. The quality factor for X-rays and gamma rays is:
a. 1
b. 2
c. 10
d. 20✔✔✔1
9. The quality factor for alpha (ray) particles is:
a. 1
b. 2
c. 10
d. 20✔✔✔20
10. Activity of radioactive material is measured in:
a. curies
b. roentgens
c. sieverts
d. grays✔✔✔curies
11. 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✔✔✔decay rate
12. Atoms that have excess energy and are unstable are known as:
a. radioactive
b. radioactivity
c. balanced
d. weighted✔✔✔radioactive
1. The Symbol R means:
a. rem
b. rad
c. roentgen
d. radiation✔✔✔roentgen
2. The acronym rad means:
a. radiation absorbed dose
b. roentgen absorbed dose
c. roentgen acquired dose
d. radiation at death✔✔✔radiation absorbed dose
3. The roentgen (R) exposure is measured in:
a. tissue
b. water
c. a lab
d. air✔✔✔air
4. The symbol mR means:
a. milliroentgen
,b. microroentgen
c. megaroentgen
d. millirem✔✔✔milliroentgen
5. One roentgen or 1 R is equal to:
a. 100 milliroentgen
b. 1000 milliroentgen
c. 0.001 milliroentgen
d. 1 milliroentgen✔✔✔1000 milliroentgen
6. The acronym rem stands for:
a. radiation equivalent man
b. radiation effect man
c. roentgen effect man
d. roentgen equivalent man✔✔✔roentgen equivalent man
,7. The initialism QF stands for:
a. quantity factor
b. quality frequency
c. quality factor
d. quality effective factor✔✔✔quality factor
8. The quality factor for X-rays and gamma rays is:
a. 1
b. 2
c. 10
d. 20✔✔✔1
9. The quality factor for alpha (ray) particles is:
a. 1
b. 2
c. 10
d. 20✔✔✔20
10. Activity of radioactive material is measured in:
a. curies
b. roentgens
c. sieverts
d. grays✔✔✔curies
11. 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✔✔✔decay rate
12. Atoms that have excess energy and are unstable are known as:
a. radioactive
b. radioactivity
c. balanced
d. weighted✔✔✔radioactive
