#1
Which type of radiation is commonly used in diagnostic radiography?
Gamma rays
X-rays
Alpha particles
Beta particles
#2
What is the function of the X-ray tube in radiography?
To generate X-rays
To convert X-rays into electrical signals
To process and display the image
To focus the X-ray beam
#3
What is the purpose of a radiographic grid in X-ray imaging?
To increase patient comfort
To reduce scattered radiation reaching the image receptor
To enhance image contrast
To decrease exposure time
#4
Which imaging modality uses radiofrequency waves and strong magnetic fields for creating images?
CT scan
MRI
Ultrasound
PET scan
#5
What is the primary purpose of the lead apron worn by patients during X-ray examinations?
To protect against electromagnetic interference
To shield from ionizing radiation exposure to sensitive tissues
To enhance patient comfort
To reduce image artifacts
#6
Which radiographic view is commonly used to assess the alignment of long bones, such as the femur or tibia?
AP (Anteroposterior) view
Lateral view
Oblique view
AP Axial view
#7
Which imaging technique is commonly used to visualize blood vessels and assess blood flow?
CT angiography
Magnetic resonance angiography (MRA)
Positron emission tomography (PET)
Ultrasound
#8
In digital radiography, what is the role of the image receptor?
To emit X-rays
To convert X-rays into electrical signals
To process and display the image
To focus the X-ray beam
#9
What is the purpose of the collimator in radiography?
To focus X-rays onto the image receptor
To limit the X-ray beam size and shape
To amplify the X-ray intensity
To enhance image resolution
#10
In radiography, what does the term 'mAs' refer to?
Magnetic Absorption Strength
Milliampere-seconds
Magnification Adjustment Scale
Mammographic Analysis System
#11
What is the purpose of contrast media in fluoroscopy?
To improve image sharpness
To enhance visualization of structures by altering tissue density
To reduce radiation exposure to the patient
To shorten examination time
#12
In radiographic imaging, what does the term 'SID' stand for?
Source-to-Image Detector
Scattered Intensity Decay
Systematic Imaging Device
Secondary Ionization Density
#13
What is the purpose of the 'C-arm' in fluoroscopy?
To rotate the X-ray tube around the patient
To control the contrast media injection rate
To provide real-time imaging during procedures
To adjust the X-ray beam collimation
#14
What is the primary advantage of computed radiography (CR) over traditional film-screen radiography?
Higher spatial resolution
Reduced radiation dose to the patient
Faster image acquisition
Digital storage and post-processing capabilities