Question 1

Which of the following units of measure are not SI units?
1)Roentgens
2)Coulombs per kilogram,grays,sieverts
3)Rads and rems

Accepted Answer

A) 1 only 
B) 2 only 
C) 3 only 
D) 1 and 3 only 
A) 1 only 
B) 2 only 
C) 3 only 
D) 1 and 3 only D

Question 2

Cataract formation,fibrosis,reduced fertility and sterility are classified as

Accepted Answer

A) early tissue reactions of ionizing radiation. 
B) late tissue reactions of ionizing radiation. 
C) hereditary effects of ionizing radiation. 
D) stochastic effects of ionizing radiation. 
A) early tissue reactions of ionizing radiation. 
B) late tissue reactions of ionizing radiation. 
C) hereditary effects of ionizing radiation. 
D) stochastic effects of ionizing radiation. B

Question 3

Which of the following types of ionizing radiation produce virtually the same biologic effect in body tissue for equal absorbed doses?

Accepted Answer

A) X-rays,beta particles,and gamma rays 
B) Alpha particles,beta particles,and gamma rays 
C) X-rays,neutrons,and gamma rays 
D) X-rays,alpha particles,and fast neutrons 
A) X-rays,beta particles,and gamma rays 
B) Alpha particles,beta particles,and gamma rays 
C) X-rays,neutrons,and gamma rays 
D) X-rays,alpha particles,and fast neutrons A

Question 4

Which of the following is essentially the sum total of air kerma over the exposed area of the patient's body surface?

Accepted Answer

A) Absorbed dose 
B) Dose area product 
C) Effective dose 
D) Equivalent dose 
A) Absorbed dose 
B) Dose area product 
C) Effective dose 
D) Equivalent dose

Question 5

In therapeutic radiology what SI units are now routinely used to specify absorbed dose?

Accepted Answer

A) Coulomb per kilogram and roentgen 
B) Air kerma and microgray 
C) Gray and centigray 
D) Sievert and millisievert 
A) Coulomb per kilogram and roentgen 
B) Air kerma and microgray 
C) Gray and centigray 
D) Sievert and millisievert

Question 6

Who discovered x-rays on November 8,1895?

Accepted Answer

A) Thomas A.Edison 
B) Clarence Madison Dally 
C) Louis Harold Gray 
D) Wilhelm Conrad Roentgen 
A) Thomas A.Edison 
B) Clarence Madison Dally 
C) Louis Harold Gray 
D) Wilhelm Conrad Roentgen

Question 7

What theory relates the ionization produced in a small cavity within an irradiated medium or object to the energy absorbed in that medium as a result of its radiation exposure?

Accepted Answer

A) Air kerma 
B) Bragg-Gray 
C) Committed dose 
D) Tissue kerma 
A) Air kerma 
B) Bragg-Gray 
C) Committed dose 
D) Tissue kerma

Question 8

The whole-body TEDE regulatory limit for exposed personnel is _____________ and ______________ for the general public.

Accepted Answer

A) 0.05 Sv;0.001 Sv 
B) 0.15 Sv;0.015 Sv 
C) 0.25 Sv;0.025 Sv 
D) 0.5 Sv;0.1 Sv 
A) 0.05 Sv;0.001 Sv 
B) 0.15 Sv;0.015 Sv 
C) 0.25 Sv;0.025 Sv 
D) 0.5 Sv;0.1 Sv

Question 9

Which of the following are early tissue reactions of ionizing radiation that were experienced by early radiation workers?
1)Diffuse redness of skin
2)Blood disorders
3)Organ atrophy
4)Intestinal disorders

Accepted Answer

A) 1,2,and 3 only 
B) 2,3,and 4 only 
C) 1,2,and 4 only 
D) 1,2,3,and 4 
A) 1,2,and 3 only 
B) 2,3,and 4 only 
C) 1,2,and 4 only 
D) 1,2,3,and 4

Question 10

1 gray equals

Accepted Answer

A) 10 J/kg. 
B) 100 J/kg. 
C) 100 cGy. 
D) 1000 cGy. 
A) 10 J/kg. 
B) 100 J/kg. 
C) 100 cGy. 
D) 1000 cGy.

Question 11

How is dose area product usually specified?

Accepted Answer

A) In coulomb per kilogram 
B) In ergs per gram 
C) In subunits of millisievert 
D) In units of mGy-cm2 
A) In coulomb per kilogram 
B) In ergs per gram 
C) In subunits of millisievert 
D) In units of mGy-cm2

Question 12

Who was the first American radiation worker to die from radiation-induced cancer in October of 1904?

Accepted Answer

A) Thomas A.Edison 
B) Wilhelm C.Roentgen 
C) Clarence Madison Dally 
D) Marie Curie 
A) Thomas A.Edison 
B) Wilhelm C.Roentgen 
C) Clarence Madison Dally 
D) Marie Curie

Question 13

For x-ray and gamma ray photons with energies up to 3 million electron volts (MeV),which of the following radiation quantities may be defined as the measure of the total electric charge of one sign,either all pluses or all minuses,per unit mass that these two types of radiation generate in dry air at standard temperature and pressure (760 mm Hg or 1 atmosphere at sea level and 22° C)?

Accepted Answer

A) Absorbed dose 
B) Equivalent dose 
C) Exposure 
D) Collective effective dose 
A) Absorbed dose 
B) Equivalent dose 
C) Exposure 
D) Collective effective dose

Question 14

Among physicians,cancer deaths attributed to x-ray exposure were reported as early as

Accepted Answer

A) 1910. 
B) 1930. 
C) 1937. 
D) 1945. 
A) 1910. 
B) 1930. 
C) 1937. 
D) 1945.

Question 15

Alpha particles have a radiation weighting factor (WR)that is numerically equal to

Accepted Answer

A) 1. 
B) 5. 
C) 10. 
D) 20. 
A) 1. 
B) 5. 
C) 10. 
D) 20.

Question 16

Which of the following formulas is used to calculate effective dose?
1. EfD =(D x WR)1 + (D x WR)2 + (D x WR)3
2. EfD =D x WR x WT
3. EfD=D ÷ WR x WT

Accepted Answer

A) 1 only 
B) 2 only 
C) 3 only 
D) 1,2,and 3 
A) 1 only 
B) 2 only 
C) 3 only 
D) 1,2,and 3

Question 17

Which of the following is the SI unit of electric current?

Accepted Answer

A) Ampere 
B) Coulomb per kilogram 
C) Erg 
D) Sievert 
A) Ampere 
B) Coulomb per kilogram 
C) Erg 
D) Sievert

Question 18

Beta particles are actually

Accepted Answer

A) gamma rays. 
B) high-speed electrons. 
C) protons. 
D) x-rays. 
A) gamma rays. 
B) high-speed electrons. 
C) protons. 
D) x-rays.

Question 19

What instrument can be calibrated to read air kerma?

Accepted Answer

A) Amp meter 
B) Coulomb counter 
C) Standard,or free-air,ionization chamber 
D) Voltmeter 
A) Amp meter 
B) Coulomb counter 
C) Standard,or free-air,ionization chamber 
D) Voltmeter

Question 20

As the intensity of x-ray exposure of the air volume increases,the number of electron-ion pairs produced

Accepted Answer

A) also increases. 
B) decreases considerably. 
C) decreases slightly. 
D) remains the same. 
A) also increases. 
B) decreases considerably. 
C) decreases slightly. 
D) remains the same.

Which of the following units of measure are not SI units? 1)Roentgens 2)Coulombs per kilogram,grays,sieverts 3)Rads and rems

Cataract formation,fibrosis,reduced fertility and sterility are classified as

Which of the following types of ionizing radiation produce virtually the same biologic effect in body tissue for equal absorbed doses?

Which of the following is essentially the sum total of air kerma over the exposed area of the patient's body surface?

In therapeutic radiology what SI units are now routinely used to specify absorbed dose?

Who discovered x-rays on November 8,1895?

What theory relates the ionization produced in a small cavity within an irradiated medium or object to the energy absorbed in that medium as a result of its radiation exposure?

The whole-body TEDE regulatory limit for exposed personnel is _ and __ for the general public.

Which of the following are early tissue reactions of ionizing radiation that were experienced by early radiation workers? 1)Diffuse redness of skin 2)Blood disorders 3)Organ atrophy 4)Intestinal disorders

1 gray equals

How is dose area product usually specified?

Who was the first American radiation worker to die from radiation-induced cancer in October of 1904?

Among physicians,cancer deaths attributed to x-ray exposure were reported as early as

Alpha particles have a radiation weighting factor (WR)that is numerically equal to

Which of the following formulas is used to calculate effective dose? 1. EfD =(D x W_R)₁ + (D x W_R)₂ + (D x W_R)₃ 2. EfD =D x W_R x W_T 3. EfD=D ÷ W_R x W_T

Which of the following is the SI unit of electric current?

Beta particles are actually

What instrument can be calibrated to read air kerma?

As the intensity of x-ray exposure of the air volume increases,the number of electron-ion pairs produced

Introduction to Radiation Protection

Radiation: Types, sources, and Doses Received

Interaction of X-Radiation With Matter

Radiation Monitoring

Overview of Cell Biology

Molecular and Cellular Radiation Biology

Early Tissue Reactions and Their Effects on Organ Systems

Stochastic Effects and Late Tissue Reactions of Radiation in Organ Systems

Dose Limits for Exposure to Ionizing Radiation

Equipment Design for Radiation Protection

Management of Patient Radiation Dose During Diagnostic X-Ray Procedures

Special Considerations on Safety in Computed Tomography and Mammography

Management of Imaging Personnel Radiation Dose During X-Ray Procedures

Radioisotopes and Radiation Protection

Filters

Exam 4: Radiation Quantities and Units

Which of the following units of measure are not SI units? 1)Roentgens 2)Coulombs per kilogram,grays,sieverts 3)Rads and rems

Cataract formation,fibrosis,reduced fertility and sterility are classified as

Which of the following types of ionizing radiation produce virtually the same biologic effect in body tissue for equal absorbed doses?

Which of the following is essentially the sum total of air kerma over the exposed area of the patient's body surface?

In therapeutic radiology what SI units are now routinely used to specify absorbed dose?

Who discovered x-rays on November 8,1895?

What theory relates the ionization produced in a small cavity within an irradiated medium or object to the energy absorbed in that medium as a result of its radiation exposure?

The whole-body TEDE regulatory limit for exposed personnel is _____________ and ______________ for the general public.

Which of the following are early tissue reactions of ionizing radiation that were experienced by early radiation workers? 1)Diffuse redness of skin 2)Blood disorders 3)Organ atrophy 4)Intestinal disorders

1 gray equals

How is dose area product usually specified?

Who was the first American radiation worker to die from radiation-induced cancer in October of 1904?

Among physicians,cancer deaths attributed to x-ray exposure were reported as early as

Alpha particles have a radiation weighting factor (WR)that is numerically equal to

Which of the following formulas is used to calculate effective dose? 1. EfD =(D x WR)1 + (D x WR)2 + (D x WR)3 2. EfD =D x WR x WT 3. EfD=D ÷ WR x WT

Which of the following is the SI unit of electric current?

Beta particles are actually

What instrument can be calibrated to read air kerma?

As the intensity of x-ray exposure of the air volume increases,the number of electron-ion pairs produced

Introduction to Radiation Protection

Radiation: Types, sources, and Doses Received

Interaction of X-Radiation With Matter

Radiation Monitoring

Overview of Cell Biology

Molecular and Cellular Radiation Biology

Early Tissue Reactions and Their Effects on Organ Systems

Stochastic Effects and Late Tissue Reactions of Radiation in Organ Systems

Dose Limits for Exposure to Ionizing Radiation

Equipment Design for Radiation Protection

Management of Patient Radiation Dose During Diagnostic X-Ray Procedures

Special Considerations on Safety in Computed Tomography and Mammography

Management of Imaging Personnel Radiation Dose During X-Ray Procedures

Radioisotopes and Radiation Protection

Filters

The whole-body TEDE regulatory limit for exposed personnel is _ and __ for the general public.

Which of the following formulas is used to calculate effective dose? 1. EfD =(D x W_R)₁ + (D x W_R)₂ + (D x W_R)₃ 2. EfD =D x W_R x W_T 3. EfD=D ÷ W_R x W_T