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ASNT Study Guide - Industrial Radiography Radiation Safety Questions and Correct Answers

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ASNT Study Guide - Industrial Radiography Radiation Safety Questions and Correct Answers

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Uploaded on: November 24, 2025
Number of pages: 89
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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asnt study guide industrial radiography radiati

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ASNT Study Guide - Industrial Radiography
Radiation Safety Questions and Correct
Answers
The Symbol R means:

a. rem

b. rad

c. roentgen

d. radiation Ans: c. roentgen

The acronym rad means:

a. radiation absorbed dose

b. roentgen absorbed dose

c. roentgen acquired dose

d. radiation at death Ans: a. radiation absorbed dose

The roentgen (R) exposure is measured in:

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a. tissue

b. water

c. a lab

d. air Ans: d. air

The symbol mR means:

a. milliroentgen

b. microroentgen

c. megaroentgen

d. millirem Ans: a. milliroentgen

One roentgen or 1 R is equal to:

a. 100 milliroentgen

b. 1000 milliroentgen

c. 0.001 milliroentgen

d. 1 milliroentgen Ans: b. 1000 milliroentgen

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The acronym rem stands for:

a. radiation equivalent man

b. radiation effect man

c. roentgen effect man

d. roentgen equivalent man Ans: d. roentgen equivalent man

The initialism QF stands for:

a. quantity factor

b. quality frequency

c. quality factor

d. quality effective factor Ans: c. quality factor

The quality factor for X-rays and gamma rays is:

a. 1

b. 2

c. 10

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d. 20 Ans: a. 1

The quality factor for alpha (ray) particles is:

a. 1

b. 2

c. 10

d. 20 Ans: d. 20

Activity of radioactive material is measured in:

a. curies

b. roentgens

c. sieverts

d. grays Ans: a. curies

Becquerels and curies are units of measurement of:

a. physical size of the source

b. gray per hour

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