Question 1

It is easy, with AEC, to use image receptors with different speeds because the detectors can sense image receptor speed.

Accepted Answer

A) True 
 B)False

Question 2

A good time to use AEC is when the radiographer is not sure where the structure to be radiographed is located.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

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

Question 4

When doing a CR study using AEC, what will happen to the density in the area of interest when changing from the -1 to +1 density setting?

Accepted Answer

A)  Density will increase. 
B)  Density will decrease. 
C)  Density will not change.

Question 5

When exposure factors are selected using APR, the variables should not be adjusted.

Accepted Answer

A) True 
 B)False

Question 6

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.

Question 7

Which automatic exposure device works by using a gas-filled chamber?

Accepted Answer

A)  Phototimer 
B)  Diode sensor 
C)  Ionization chamber 
D)  Bucky proliferator

Question 8

When doing a film-screen study using AEC, what will happen to the density in the area of interest when changing from -1 to +1 density setting?

Accepted Answer

A)  Density will increase. 
B)  Density will decrease. 
C)  Density will not change.

Question 9

When doing a film-screen study using AEC, what will happen to the density in the area of interest when changing from 70 kVp to 90 kVp?

Accepted Answer

A)  Density will increase. 
B)  Density will decrease. 
C)  Density will not change.

Question 10

Which exposure variable is controlled by the automatic exposure control device?

Accepted Answer

A)  kVp 
B)  Focal spot size 
C)  Seconds 
D)  mA

Exam 11: Automatic Exposure Control

It is easy, with AEC, to use image receptors with different speeds because the detectors can sense image receptor speed.