W/L Ch 17 Safety and Protection Quiz Flashcards Preview

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Flashcards in W/L Ch 17 Safety and Protection Quiz Deck (31)
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1
Q

Electrons have a quality factor (QF) of _____.

a. 1
b. 5
c. 10
d. 20

A

a. 1

2
Q

What is the radiation weighting factor for gamma-rays?

a. 1
b. 5
c. 10
d. 20

A

a. 1

3
Q

What is the radiation weighting factor for alpha particles?

a. 1
b. 5
c. 10
d. 20

A

d. 20

4
Q

X-rays have a quality factor of ________.

a. 1
b. 5
c. 10
d. 20

A

a. 1

5
Q

Slow neutrons have a quality factor of _________.

a. 1
b. 5
c. 10
d. 20

A

b. 5

6
Q

The annual dose equivalent limit to the whole body for occupationally exposed individuals is _____ mSv.

a. 50
b. 100
c. 150
d. 500

A

a. 50

p. 344, table 17-4

7
Q

The annual dose equivalent limit to the lens of the eye for occupationally exposed individuals is ____ mSv.

a. 50
b. 100
c. 150
d. 500

A

c. 150

8
Q

The annual dose equivalent limit to the heart for occupationally exposed individuals is ____ mSv.

a. 50
b. 100
c. 150
d. 500

A

d. 500

9
Q

The annual dose equivalent limit to the whole body for frequent nonoccupationally exposed individuals is ____ mSv.

a. 0.5
b. 1
c. 5
d. 50

A

b. 1

10
Q

The annual dose equivalent limit to the whole body for infrequent nonoccupationally exposed individuals is ____ mSv.

a. 0.5
b. 1
c. 5
d. 50

A

c. 5

11
Q

The annual dose equivalent limit to the lens of the eye for nonoccupationally exposed individuals is ____ mSv.

a. 0.5
b. 1
c. 5
d. 50

A

d. 50

12
Q

The annual dose equivalent limit to the whole body for educationally exposed individuals is ____ mSv.

a. 0.5
b. 1
c. 5
d. 50

A

b. 1

13
Q

The annual dose equivalent limit to the lens of the eye for educationally exposed individuals is ____ mSv.

a. 0.5
b. 1
c. 5
d. 50

A

d. 50

14
Q

The monthly dose equivalent limit to an embryo/fetus is ____ mSv.

a. 0.5
b. 1
c. 5
d. 50

A

a. 0.5

15
Q

The total gestational dose equivalent limit is ____ mSv.

a. 0.5
b. 1
c. 5
d. 50

A

c. 5

16
Q

Smoking cigarettes increases an individual’s radiation exposure by ____ mSv.

a. 0.2
b. 0.11
c. 13
d. 11

A

c. 13

17
Q

The average annual dose received by the general public from all naturally occurring radiation sources is ____ mSv.

a. 3
b. 2
c. 1
d. 0.5

A

a. 3

18
Q

The average annual dose received by the general public from radon is ____ mSv.

a. 3
b. 2
c. 1
d. 0.5

A

b. 2

19
Q

The average annual dose received by the general public from all medical radiation procedures is ____ mSv.

a. 3
b. 2
c. 1
d. 0.5

A

d. 0.5

20
Q

The average annual dose received by the general public from naturally occurring internal radiation is ____ mSv.

a. 0.2
b. 0.11
c. 13
d. 11

A

a. 0.2

21
Q

The current recommended negligible individual risk level is ____ mSv/yr.

a. 0.001
b. 0.01
c. 0.1
d. 1

A

b. 0.01

22
Q

Thermoluminescent dosimeters are composed of ____.

a. Ra
b. Al2O3
c. Ce
d. LiF

A

d. LiF

23
Q

Which of the following would not be helpful in a personnel radiation-monitoring program?

a. Film badges
b. Routine blood examinations
c. Pocket ionization chambers
d. TLDs

A

b. Routine blood examinations

24
Q
Which of the following materials are used in room shielding?
I.   Cerrobend
II.  Concrete
III. Lead
IV. Steel

a. I and III
b. I, II, and III
c. II, III, and IV
d. I, II, III, and IV

A

c. II, III, and IV

25
Q

Which of the following describes why filters are used in film badges?

a. To discriminate different directions of radiation
b. To discriminate different radiation energies and types
c. To correct for film fogging due to exposure
d. To increase the sensitivity of the measuring device

A

b. To discriminate different radiation energies and types

26
Q

Which agency provides information and recommendations in the public interest concerning radiation measurements and protection?

a. ACR
b. NCRP
c. ALARA
d. AER

A

b. NCRP

27
Q

Which particles have the highest linear energy transfer?

a. Alpha particles
b. Beta particles
c. X-rays
d. Gamma-rays

A

a. Alpha particles

28
Q

Which particles can be electrons?

a. Alpha particles
b. Beta particles
c. X-rays
d. Gamma-rays

A

b. Beta particles

29
Q

Which of the following is not a natural source of background radiation?

a. Cosmic rays
b. Radium and uranium
c. Carbon 14
d. Nuclear fallout

A

d. Nuclear fallout

30
Q

It is recommended that gestational dose be ________________________.

a. unequally shifted to the third trimester
b. unequally shifted to the first trimester
c. unequally shifted to the second trimester
d. evenly distributed throughout the gestational period

A

d. evenly distributed throughout the gestational period

It is recommended that the exposure be distributed uniformly with respect to time or trimester.

31
Q

One half-value layer thickness in concrete would be__________ one half-value layer thickness in lead for a Cobalt 60 beam.

a. less than
b. greater than
c. equivalent to

A

b. greater than