Question 1

Technique charts are still needed when using AEC.

Accepted Answer

A) True 
 B)False  True

Question 2

The technique chart will provide information as to how to recognize and compensate for additive pathology.

Accepted Answer

A) True 
 B)False  False

Question 3

A variable kVp-fixed mAs chart may be most effective with:

Accepted Answer

A)  geriatric patients. 
B)  trauma patients. 
C)  patients imaged with mobile equipment. 
D)  pediatric patients. 
A)  geriatric patients. 
B)  trauma patients. 
C)  patients imaged with mobile equipment. 
D)  pediatric patients. D

Question 4

Newer x-ray units may keep you from making an exposure if you've selected the table Bucky on the control panel but there's no IR in the table Bucky.

Accepted Answer

A) True 
 B)False

Question 5

With a CR system,when using AEC to image a patient who is having difficulty holding still,increasing the mA (if the unit allows)will:

Accepted Answer

A)  be a bad idea because the patient will be overexposed. 
B)  be a bad idea because the patient will be underexposed. 
C)  be a good idea because the exposure time will increase. 
D)  be a good idea because the exposure time will decrease. 
A)  be a bad idea because the patient will be overexposed. 
B)  be a bad idea because the patient will be underexposed. 
C)  be a good idea because the exposure time will increase. 
D)  be a good idea because the exposure time will decrease.

Question 6

The most common cause for repeating images done with film-screen and AEC is inaccurate:

Accepted Answer

A)  kVp selection. 
B)  backup mAs selection. 
C)  centering. 
D)  alignment of the tube and image receptor. 
A)  kVp selection. 
B)  backup mAs selection. 
C)  centering. 
D)  alignment of the tube and image receptor.

Question 7

What is the appropriate change in kVp when using a variable kVp-fixed mAs technique chart for a 1 cm change in tissue thickness?

Accepted Answer

A)  2 kVp 
B)  4 kVp 
C)  6 kVp 
D)  10 kVp 
A)  2 kVp 
B)  4 kVp 
C)  6 kVp 
D)  10 kVp

Question 8

When doing a tabletop forearm study with CR,you should:

Accepted Answer

A)  use AEC. 
B)  set manual technique. 
C)  A and B. 
A)  use AEC. 
B)  set manual technique. 
C)  A and B.

Question 9

When using a fixed kVp-variable mAs technique chart,if part thickness increases by 5 cm,what needs to happen to the mAs?

Accepted Answer

A)  It should be halved. 
B)  It should be doubled. 
C)  It should be quartered. 
D)  It should be tripled. 
A)  It should be halved. 
B)  It should be doubled. 
C)  It should be quartered. 
D)  It should be tripled.

Question 10

When using AEC with film-screen,what should the radiographer adjust to manipulate the overall density of the image?

Accepted Answer

A)  kVp 
B)  Backup time 
C)  Focal spot size 
D)  Density control 
A)  kVp 
B)  Backup time 
C)  Focal spot size 
D)  Density control

Question 11

What kind of chart uses a kVp value that is high enough to adequately penetrate the part but does not diminish radiographic contrast?

Accepted Answer

A)  A variable kVp technique chart 
B)  A fixed kVp technique chart 
C)  A fixed mAs technique chart 
D)  A and B 
E)  A and C 
A)  A variable kVp technique chart 
B)  A fixed kVp technique chart 
C)  A fixed mAs technique chart 
D)  A and B 
E)  A and C

Question 12

Once a predetermined amount of radiation is transmitted through a patient to the AEC detector,which of the following occurs?

Accepted Answer

A)  The x-ray exposure increases. 
B)  The x-ray exposure decreases. 
C)  The x-ray exposure terminates. 
D)  A and B. 
A)  The x-ray exposure increases. 
B)  The x-ray exposure decreases. 
C)  The x-ray exposure terminates. 
D)  A and B.

Question 13

Which of the following terms does not belong in the list?

Accepted Answer

A)  Photodiode 
B)  Ion chamber 
C)  Ionization chamber 
D)  mAs readout 
A)  Photodiode 
B)  Ion chamber 
C)  Ionization chamber 
D)  mAs readout

Question 14

Exposure time will ______ using AEC when patient thickness decreases.

Accepted Answer

A)  decrease 
B)  remain the same 
C)  increase 
D)  double 
A)  decrease 
B)  remain the same 
C)  increase 
D)  double

Question 15

What are calipers used for?

Accepted Answer

A)  To measure the mA 
B)  To select the kVp 
C)  To select focal spot size 
D)  To measure the part 
A)  To measure the mA 
B)  To select the kVp 
C)  To select focal spot size 
D)  To measure the part

Question 16

Where is the sensor located in an automatic exposure device that converts light into an electrical signal?

Accepted Answer

A)  In front of the patient 
B)  Behind the image receptor 
C)  In front of the image receptor 
D)  On the tabletop 
A)  In front of the patient 
B)  Behind the image receptor 
C)  In front of the image receptor 
D)  On the tabletop

Question 17

With modern x-ray equipment,the AEC system's minimum response time is typically:

Accepted Answer

A)  1 ms. 
B)  10 ms. 
C)  50 ms. 
D)  100 ms. 
A)  1 ms. 
B)  10 ms. 
C)  50 ms. 
D)  100 ms.

Question 18

Where is the sensor located in an automatic exposure device with a gas-filled chamber?

Accepted Answer

A)  In front of the patient 
B)  Behind the Bucky tray 
C)  In front of the image receptor 
D)  On the tabletop 
A)  In front of the patient 
B)  Behind the Bucky tray 
C)  In front of the image receptor 
D)  On the tabletop

Question 19

Two identical rooms having the same generator and tube and installed at the same time do not require development of separate technique charts.The chart for one room can accurately be used in the other.

Accepted Answer

A) True 
 B)False

Question 20

Radiographic contrast would be standardized with the:

Accepted Answer

A)  variable kVp-fixed mAs technique chart design. 
B)  variable kVp-variable mAs technique chart design. 
C)  fixed kVp-variable mAs technique chart design. 
D)  fixed kVp-fixed mAs technique chart design. 
A)  variable kVp-fixed mAs technique chart design. 
B)  variable kVp-variable mAs technique chart design. 
C)  fixed kVp-variable mAs technique chart design. 
D)  fixed kVp-fixed mAs technique chart design.

Technique charts are still needed when using AEC.

The technique chart will provide information as to how to recognize and compensate for additive pathology.

A variable kVp-fixed mAs chart may be most effective with:

Newer x-ray units may keep you from making an exposure if you've selected the table Bucky on the control panel but there's no IR in the table Bucky.

With a CR system,when using AEC to image a patient who is having difficulty holding still,increasing the mA (if the unit allows)will:

The most common cause for repeating images done with film-screen and AEC is inaccurate:

What is the appropriate change in kVp when using a variable kVp-fixed mAs technique chart for a 1 cm change in tissue thickness?

When doing a tabletop forearm study with CR,you should:

When using a fixed kVp-variable mAs technique chart,if part thickness increases by 5 cm,what needs to happen to the mAs?

When using AEC with film-screen,what should the radiographer adjust to manipulate the overall density of the image?

What kind of chart uses a kVp value that is high enough to adequately penetrate the part but does not diminish radiographic contrast?

Once a predetermined amount of radiation is transmitted through a patient to the AEC detector,which of the following occurs?

Which of the following terms does not belong in the list?

Exposure time will ______ using AEC when patient thickness decreases.

What are calipers used for?

Where is the sensor located in an automatic exposure device that converts light into an electrical signal?

With modern x-ray equipment,the AEC system's minimum response time is typically:

Where is the sensor located in an automatic exposure device with a gas-filled chamber?

Two identical rooms having the same generator and tube and installed at the same time do not require development of separate technique charts.The chart for one room can accurately be used in the other.

Radiographic contrast would be standardized with the:

Radiation and Its Discovery

The X-Ray Beam

Image Formation and Radiographic Quality

Digital Imaging

Film-Screen Imaging

Exposure Technique Factors

Scatter Control

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters

Exam 8: Exposure Technique Selection

Technique charts are still needed when using AEC.

The technique chart will provide information as to how to recognize and compensate for additive pathology.

A variable kVp-fixed mAs chart may be most effective with:

Newer x-ray units may keep you from making an exposure if you've selected the table Bucky on the control panel but there's no IR in the table Bucky.

With a CR system,when using AEC to image a patient who is having difficulty holding still,increasing the mA (if the unit allows)will:

The most common cause for repeating images done with film-screen and AEC is inaccurate:

What is the appropriate change in kVp when using a variable kVp-fixed mAs technique chart for a 1 cm change in tissue thickness?

When doing a tabletop forearm study with CR,you should:

When using a fixed kVp-variable mAs technique chart,if part thickness increases by 5 cm,what needs to happen to the mAs?

When using AEC with film-screen,what should the radiographer adjust to manipulate the overall density of the image?

What kind of chart uses a kVp value that is high enough to adequately penetrate the part but does not diminish radiographic contrast?

Once a predetermined amount of radiation is transmitted through a patient to the AEC detector,which of the following occurs?

Which of the following terms does not belong in the list?

Exposure time will ______ using AEC when patient thickness decreases.

What are calipers used for?

Where is the sensor located in an automatic exposure device that converts light into an electrical signal?

With modern x-ray equipment,the AEC system's minimum response time is typically:

Where is the sensor located in an automatic exposure device with a gas-filled chamber?

Two identical rooms having the same generator and tube and installed at the same time do not require development of separate technique charts.The chart for one room can accurately be used in the other.

Radiographic contrast would be standardized with the:

Radiation and Its Discovery

The X-Ray Beam

Image Formation and Radiographic Quality

Digital Imaging

Film-Screen Imaging

Exposure Technique Factors

Scatter Control

Image Evaluation

Dynamic Imaging: Fluoroscopy

Filters