LRA 221 CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◍ Conventional radiography consists of.
Answer: film and intensifying screens
◍ In a DR system, which of the following are needed to produce a
radiographic image?.
Answer: X-ray absorber and a CCD
◍ The two elements needed to convert light signals into an electrical signal
while using indirect capture DR are TFT and:.
Answer: Photodiodes and TFT
◍ The X-ray absorber typically used in direct capture DR is a.
Answer: Photoconductor
◍ Compared with a 90-second processing time found in conventional
radiography, image acquisition with DR has now been reduced to:.
Answer: 3-5 seconds
◍ Active element in a storage phosphor.
Answer: barium fluorohalide
◍ which of the following best describes the sequence for psp image capture?.
Answer: phosphor plate, focus laser light scanner, photomultiplier, ADC and
a review station
◍ The ____ converts x-ray energy directly to a digital electrical signal..
Answer: photoconductor
◍ With conventional radiography, optical density is primarily controlled by:.
Answer: mAs
◍ Present image annotation controls include all of the following except.
, Answer: date and time stamps
◍ Components of PACS.
Answer: Image acquisition, display workstations, archive servers
◍ When switching from a conventional to diagnostic radiography room to one
that incorporates CR, major equipment changes are to be expected.
Answer: False
◍ Similar to CR, DR can use the existing diagnostic equipment found in
today's imaging departments..
Answer: False
◍ Indirect capture DR converts absorbed x-ray energy into visible light..
Answer: False
◍ A Bucky apparatus is required for D
R. .
Answer: False
◍ Many PACS reading stations also have image-processing capabilities..
Answer: true
◍ Each square in a matrix is called a:.
Answer: pixel or picture element
◍ the numbers of bits per pixel is known as bit.
Answer: depth
◍ The size of the pixel is determined by the:.
Answer: matrix
◍ Which of the following statements is not true?.
Answer: Exposure index refers to the amount of exposure received by IR not
the patient.
◍ KIND.
Answer: the measurement for radiation that was incident on the image
receptor for a particular exposure
QUESTIONS WITH SOLUTIONS GRADED A+
◍ Conventional radiography consists of.
Answer: film and intensifying screens
◍ In a DR system, which of the following are needed to produce a
radiographic image?.
Answer: X-ray absorber and a CCD
◍ The two elements needed to convert light signals into an electrical signal
while using indirect capture DR are TFT and:.
Answer: Photodiodes and TFT
◍ The X-ray absorber typically used in direct capture DR is a.
Answer: Photoconductor
◍ Compared with a 90-second processing time found in conventional
radiography, image acquisition with DR has now been reduced to:.
Answer: 3-5 seconds
◍ Active element in a storage phosphor.
Answer: barium fluorohalide
◍ which of the following best describes the sequence for psp image capture?.
Answer: phosphor plate, focus laser light scanner, photomultiplier, ADC and
a review station
◍ The ____ converts x-ray energy directly to a digital electrical signal..
Answer: photoconductor
◍ With conventional radiography, optical density is primarily controlled by:.
Answer: mAs
◍ Present image annotation controls include all of the following except.
, Answer: date and time stamps
◍ Components of PACS.
Answer: Image acquisition, display workstations, archive servers
◍ When switching from a conventional to diagnostic radiography room to one
that incorporates CR, major equipment changes are to be expected.
Answer: False
◍ Similar to CR, DR can use the existing diagnostic equipment found in
today's imaging departments..
Answer: False
◍ Indirect capture DR converts absorbed x-ray energy into visible light..
Answer: False
◍ A Bucky apparatus is required for D
R. .
Answer: False
◍ Many PACS reading stations also have image-processing capabilities..
Answer: true
◍ Each square in a matrix is called a:.
Answer: pixel or picture element
◍ the numbers of bits per pixel is known as bit.
Answer: depth
◍ The size of the pixel is determined by the:.
Answer: matrix
◍ Which of the following statements is not true?.
Answer: Exposure index refers to the amount of exposure received by IR not
the patient.
◍ KIND.
Answer: the measurement for radiation that was incident on the image
receptor for a particular exposure
