Question 1

Should you wait 30 seconds after making an exposure before entering the room?

Accepted Answer

No. X-rays travel at the speed of light and cease to exit the tube head within a fraction of a second after releasing the exposure button.

Question 2

What is the term for bundles of energy that travel through space at the speed of light?

Accepted Answer

Photons. The particle (or quantum) theory assumes that electromagnetic radiations are particles or quanta

Question 3

The total number of protons in the nucleus of an atom determines the atomic number.

Accepted Answer

A) True 
 B)False  True

Question 4

The inner-most electron shell in an atom is the K shell.

Accepted Answer

A) True 
 B)False

Question 5

People living on the Colorado plateau receive a higher dose of what type of radiation than people living in Philadelphia?

Accepted Answer

The answer of People living on the Colorado plateau receive...

Question 6

What are the positively charged particles in the nucleus of an atom called?

Accepted Answer

Protons. Positively

Question 7

The speed of a wave is its

Accepted Answer

A)  Wavelength 
B)  Velocity 
C)  Frequency 
D)  Photon 
A)  Wavelength 
B)  Velocity 
C)  Frequency 
D)  Photon

Question 8

Ionizing radiation is energy that is capable of producing ions.

Accepted Answer

A) True 
 B)False

Question 9

The Système International unit for measuring absorbed dose is the

Accepted Answer

A)  Gray 
B)  Sievert 
C)  Rad 
D)  Rem 
A)  Gray 
B)  Sievert 
C)  Rad 
D)  Rem

Question 10

Electrons have a positive charge.

Accepted Answer

A) True 
 B)False

Question 11

Which one of these is NOT a Système International (SI) unit of measurement?

Accepted Answer

A)  Sievert 
B)  Roentgen 
C)  Coulombs per kilogram 
D)  Gray 
A)  Sievert 
B)  Roentgen 
C)  Coulombs per kilogram 
D)  Gray

Question 12

The measure of the number of waves that pass a given point per unit of time is known as the:

Accepted Answer

A)  angstrom unit. 
B)  wavelength. 
C)  frequency. 
D)  velocity. 
A)  angstrom unit. 
B)  wavelength. 
C)  frequency. 
D)  velocity.

Question 13

What is the speed of a wave called?

Accepted Answer

Velocity. "Velocity"

Question 14

The majority of x-rays produced by dental x-ray machines are formed by:

Accepted Answer

A)  Characteristic radiation 
B)  Radionuclide decay 
C)  Bremsstrahlung radiation 
D)  Coherent scattering 
A)  Characteristic radiation 
B)  Radionuclide decay 
C)  Bremsstrahlung radiation 
D)  Coherent scattering

Question 15

Electromagnetic radiation is propelled through space as both a particle and a wave.

Accepted Answer

A) True 
 B)False

Question 16

The electromagnetic spectrum arranges energy types by decay rates.

Accepted Answer

A) True 
 B)False

Question 17

X-rays travel at the speed of sound.

Accepted Answer

A) True 
 B)False

Question 18

Dental x-rays do not involve the use of radioactivity.

Accepted Answer

A) True 
 B)False

Question 19

The sievert and rem are units of measurement for:

Accepted Answer

A)  the radiation exposure in the air. 
B)  the amount of energy absorbed by tissues. 
C)  the comparison of biological effects. 
D)  All of the above. 
A)  the radiation exposure in the air. 
B)  the amount of energy absorbed by tissues. 
C)  the comparison of biological effects. 
D)  All of the above.

Question 20

Each of the following is a form of energy EXCEPT one. Which one is the EXCEPTION?

Accepted Answer

A)  Heat 
B)  Water 
C)  Light 
D)  X-radiation 
A)  Heat 
B)  Water 
C)  Light 
D)  X-radiation

Exam 2: Characteristics and Measurement of Radiation

Should you wait 30 seconds after making an exposure before entering the room?

What is the term for bundles of energy that travel through space at the speed of light?

The total number of protons in the nucleus of an atom determines the atomic number.

The inner-most electron shell in an atom is the K shell.

People living on the Colorado plateau receive a higher dose of what type of radiation than people living in Philadelphia?

What are the positively charged particles in the nucleus of an atom called?

The speed of a wave is its

Ionizing radiation is energy that is capable of producing ions.

The Système International unit for measuring absorbed dose is the

Electrons have a positive charge.

Which one of these is NOT a Système International (SI) unit of measurement?

The measure of the number of waves that pass a given point per unit of time is known as the:

What is the speed of a wave called?

The majority of x-rays produced by dental x-ray machines are formed by:

Electromagnetic radiation is propelled through space as both a particle and a wave.

The electromagnetic spectrum arranges energy types by decay rates.

X-rays travel at the speed of sound.

Dental x-rays do not involve the use of radioactivity.

The sievert and rem are units of measurement for:

Each of the following is a form of energy EXCEPT one. Which one is the EXCEPTION?

Dental Radiography: Historical Perspective and Future Trends

The Dental X-Ray Machine: Components and Function

Factors Affecting Radiographic Quality

Effects of Radiation Exposure

Radiation Protection

Dental X-Ray Film and Processing Methods

Digital Radiography and Image Acquisition

Infection Control

Legal and Ethical Responsibilities

Patient Relations and Education

Introduction to Radiographic Examinations

The Periapical Examinationparalleling Technique

The Periapical Examinationbisecting Technique

The Bitewing Examination

The Occlusal Examination

The Panoramic Examination

Identifying and Correcting Undiagnostic Radiographs

Quality Control and Environmental Safety in Dental Radiography

Image Orientation and Introduction to Interpretation

Recognizing Normal Radiographic Anatomy Intraoral Radiographs

Recognizing Normal Radiographic Anatomy Panoramic Radiographs

Radiographic Appearance of Dental Materials and Foreign Objects

The Use of Radiographs in the Detection of Dental Caries

The Use of Radiographs in the Evaluation of Periodontal Diseases

Describing Radiographic Anomalies, Lesions, and Opportunistic Screening

Pediatric Radiographic Techniques

Radiographic Techniques for Patients With Special Needs

Radiographic Techniques for Specific Oral Conditions

Radiographic Techniques

Filters