NVCC RAD 105 Final
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. How does a radiographer maximize signal to digital image receptors? (Select
the three that apply.) - ANSWER Compression of the body part.
Shorter source to image receptor distance (SID).
Longer exposure time.
2. What results from utilizing a lower ratio grid? - ANSWER Lower contrast,
but greater error margin in central ray (CR) placement.
3. Why is it important for the radiographer to observe the milliampere
seconds (mAs) readout at the end of each exposure when using automatic
exposure control (AEC)? - ANSWER This value may be used as a basis for
calculating manual techniques.
4. How does emphysema impact radiographic imaging of the chest? - ANSWER
Emphysema is a destructive disease, meaning the chest tissue is more
radiolucent.
,5. If computed radiography (CR) imaging plates (IP) haven't been used, how
often should they be erased? - ANSWER 48 hours.
6. In which way can the radiographer minimize motion due to peristalsis? -
ANSWER Decrease exposure time.
7. Which best describes anode heel effect? - ANSWER A phenomenon
where x-ray intensity is greater under the cathode.
8. Which will increase the appearance of noise in a digital image, assuming
only the named factor in each response is changed? - ANSWER Large
matrix.
9. Which is the preferred method for indicating the correct anatomic side on a
radiographic image? - ANSWER Place a side marker directly on the
image receptor (IR) prior to exposure.
10.If a radiographer wanted to double image density without doubling the
patient's dose, which action should be taken? - ANSWER Increase
kilovolts peak (kVp) by 15%
11.Which statement is correct regarding the relationship of patient dose to
exposure index (EI)? - ANSWER EI gives an approximation of the
patient's dose.
,12.What is a method of electronic display resolution quality control testing? -
ANSWER Society of Motion Picture and Television Engineers (SMPTE)
test pattern.
13.A breathing technique is planned for a right anterior oblique (RAO) sternum
radiograph. The intended exposure is 50 milliampere-seconds (mAs) at 75
kilovolts peak (kVp) at 100 centimeter source to image receptor distance
(SID). Which milliampere (mA) station is preferred, assuming the
radiographer ensures exposure occurs during the act of inspiration? -
ANSWER 50
14.How much compensation is needed for a change to a small focal spot? -
ANSWER None.
15.If all the bucky digital images from one radiographic room seem to appear
excessively noisy, what might the radiographer suspect? - ANSWER The
automatic exposure control (AEC) is set at an inappropriate speed class.
16.How can the contrast scale be modified on a digital image? (Select the two
that apply.) - ANSWER Alter the window width.
Collimate more closely
17.Which computed radiography (CR) or digital radiography (DR) system
produces images with the highest spatial resolution? - ANSWER
Amorphous selenium - direct capture DR.
, 18.What could cause a computed radiography image with very noticeable lines
uniformly in the same direction over the entire image? (Select the three
that apply.) - ANSWER Grid used with grid frequency equal to the image
reader's laser scan lines.
Noise resulting from the plate reader electronics.
Grid utilized with grid lines running parallel to the laser scan lines of the image
reader device.
19.Which description best defines a histogram? - ANSWER Graph where x-
axis is the amount of exposure read, and the y-axis is the number of pixels.
20.Which is one function of a picture archiving and communication system
(PACS) network? - ANSWER Downloading images from different imaging
modalities.
21.Determine the file size for an image with a 512 x 512 matrix and 12 gray
scale bit depth. - ANSWER 393,216 bytes.
22.In order to increase the number of shades of gray displayed on a digital
image what should be done? - ANSWER Increase the window width.
23.Which component of a diagnostic x-ray tube restricts the primary beam to
the area of interest? - ANSWER Collimator.
Comprehensive Resource To Help You Ace 2026-2027
Includes Frequently Tested Questions With ELABORATED
100% Correct COMPLETE SOLUTIONS
Guaranteed Pass First Attempt!!
Current Update!!
1. How does a radiographer maximize signal to digital image receptors? (Select
the three that apply.) - ANSWER Compression of the body part.
Shorter source to image receptor distance (SID).
Longer exposure time.
2. What results from utilizing a lower ratio grid? - ANSWER Lower contrast,
but greater error margin in central ray (CR) placement.
3. Why is it important for the radiographer to observe the milliampere
seconds (mAs) readout at the end of each exposure when using automatic
exposure control (AEC)? - ANSWER This value may be used as a basis for
calculating manual techniques.
4. How does emphysema impact radiographic imaging of the chest? - ANSWER
Emphysema is a destructive disease, meaning the chest tissue is more
radiolucent.
,5. If computed radiography (CR) imaging plates (IP) haven't been used, how
often should they be erased? - ANSWER 48 hours.
6. In which way can the radiographer minimize motion due to peristalsis? -
ANSWER Decrease exposure time.
7. Which best describes anode heel effect? - ANSWER A phenomenon
where x-ray intensity is greater under the cathode.
8. Which will increase the appearance of noise in a digital image, assuming
only the named factor in each response is changed? - ANSWER Large
matrix.
9. Which is the preferred method for indicating the correct anatomic side on a
radiographic image? - ANSWER Place a side marker directly on the
image receptor (IR) prior to exposure.
10.If a radiographer wanted to double image density without doubling the
patient's dose, which action should be taken? - ANSWER Increase
kilovolts peak (kVp) by 15%
11.Which statement is correct regarding the relationship of patient dose to
exposure index (EI)? - ANSWER EI gives an approximation of the
patient's dose.
,12.What is a method of electronic display resolution quality control testing? -
ANSWER Society of Motion Picture and Television Engineers (SMPTE)
test pattern.
13.A breathing technique is planned for a right anterior oblique (RAO) sternum
radiograph. The intended exposure is 50 milliampere-seconds (mAs) at 75
kilovolts peak (kVp) at 100 centimeter source to image receptor distance
(SID). Which milliampere (mA) station is preferred, assuming the
radiographer ensures exposure occurs during the act of inspiration? -
ANSWER 50
14.How much compensation is needed for a change to a small focal spot? -
ANSWER None.
15.If all the bucky digital images from one radiographic room seem to appear
excessively noisy, what might the radiographer suspect? - ANSWER The
automatic exposure control (AEC) is set at an inappropriate speed class.
16.How can the contrast scale be modified on a digital image? (Select the two
that apply.) - ANSWER Alter the window width.
Collimate more closely
17.Which computed radiography (CR) or digital radiography (DR) system
produces images with the highest spatial resolution? - ANSWER
Amorphous selenium - direct capture DR.
, 18.What could cause a computed radiography image with very noticeable lines
uniformly in the same direction over the entire image? (Select the three
that apply.) - ANSWER Grid used with grid frequency equal to the image
reader's laser scan lines.
Noise resulting from the plate reader electronics.
Grid utilized with grid lines running parallel to the laser scan lines of the image
reader device.
19.Which description best defines a histogram? - ANSWER Graph where x-
axis is the amount of exposure read, and the y-axis is the number of pixels.
20.Which is one function of a picture archiving and communication system
(PACS) network? - ANSWER Downloading images from different imaging
modalities.
21.Determine the file size for an image with a 512 x 512 matrix and 12 gray
scale bit depth. - ANSWER 393,216 bytes.
22.In order to increase the number of shades of gray displayed on a digital
image what should be done? - ANSWER Increase the window width.
23.Which component of a diagnostic x-ray tube restricts the primary beam to
the area of interest? - ANSWER Collimator.
