ARRT Radiography Exam Review (200-300) || acknowledged
answers 100%.
A ________ is used to measure radiation in an area, storage areas for radioisotopes, doses
traveling through barriers, and patients who have radioactive sources within them. correct
answers Handheld Ionization Chamber
Handheld ionization chambers can measure exposure rates as low as ________ per hour. correct
answers 10 µGyᵃ
A ________ is used to detect radioactive particles in nuclear medicine facilities. correct answers
Geiger-Mueller Detector
Geiger-Mueller detectors read in ________ per minute. correct answers Counts
An autotransformer is also known as a ________ transformer. correct answers Variable
An autotransformer is constructed with: correct answers A single coil of wire with an iron core.
The autotransformer is the source for selecting ________. correct answers kVp
Autotransformers operate on the principle of ________. correct answers Self-Induction
The ________ is in the x-ray circuit to indicate the voltage that is selected. correct answers
Prereading Voltmeter
The prereading voltmeter is prereading because it indicates the ________ that will be flowing
through the tube once the exposure is made. correct answers Kilovoltage
,The prereading voltmeter is placed in the circuit between the ________ and the ________.
correct answers 1) Autotransformer
2) Step-Up Transformer
A ________ is used to regulate the duration of the x-ray exposure. correct answers Timer
The timer is wired in the circuit between the ________ and the ________. correct answers 1)
Autotransformer
2) Step-Up Transformer
Electronic timers allow exposures as low as ________. correct answers 1 ms or 1/1000 second.
The ________ provides the safest tube current in the shortest possible time. correct answers mAs
Timer
The mAs timer measures the total ________. correct answers Tube Current
The mAs timer is located ________ the secondary coil of the step-up transformer. correct
answers After
The mAs timer is generally used with ________ generators. correct answers Falling Load
________ is used to provide consistency of radiographic quality. correct answers Automatic
Exposure Control (AEC)
AEC consists of a flat ________ chamber that is located between the ________ and the
________. correct answers 1) Ionization
2) Patient
3) Image Receptor
, AEC uses a ________ kVp, while the machine controls the ________. correct answers 1) Fixed
2) mAs
The shortest exposure time possible with an AEC is ________. correct answers 1 ms or 1/1000
second.
A ________ is a modern generator that takes advantage of extremely short time capabilities and
tube heat-loading potential. correct answers Falling Load Generator
With a falling load generator, the radiographer sets ________ and ________, and the generator
calculates the most efficient method of obtaining the required ________. correct answers 1) kVp
2) mAs
3) mAs
A ________ transformer consists of primary coils and secondary coils. correct answers Step-Up
or High-Voltage
A step-up transformer requires ________ current in order to operate. correct answers Alternating
The ________ coil of a step-up transformer receives voltage from the autotransformer . correct
answers Primary
Step-up transformers operate on the principle of ________. correct answers Mutual Induction
The ________ describes the number of turns in the wire in the primary coil, compared to the
number of turns in the wire of the secondary coil. correct answers Turns Ratio
Turns Ratio Formula (Autotransformer Law): correct answers
answers 100%.
A ________ is used to measure radiation in an area, storage areas for radioisotopes, doses
traveling through barriers, and patients who have radioactive sources within them. correct
answers Handheld Ionization Chamber
Handheld ionization chambers can measure exposure rates as low as ________ per hour. correct
answers 10 µGyᵃ
A ________ is used to detect radioactive particles in nuclear medicine facilities. correct answers
Geiger-Mueller Detector
Geiger-Mueller detectors read in ________ per minute. correct answers Counts
An autotransformer is also known as a ________ transformer. correct answers Variable
An autotransformer is constructed with: correct answers A single coil of wire with an iron core.
The autotransformer is the source for selecting ________. correct answers kVp
Autotransformers operate on the principle of ________. correct answers Self-Induction
The ________ is in the x-ray circuit to indicate the voltage that is selected. correct answers
Prereading Voltmeter
The prereading voltmeter is prereading because it indicates the ________ that will be flowing
through the tube once the exposure is made. correct answers Kilovoltage
,The prereading voltmeter is placed in the circuit between the ________ and the ________.
correct answers 1) Autotransformer
2) Step-Up Transformer
A ________ is used to regulate the duration of the x-ray exposure. correct answers Timer
The timer is wired in the circuit between the ________ and the ________. correct answers 1)
Autotransformer
2) Step-Up Transformer
Electronic timers allow exposures as low as ________. correct answers 1 ms or 1/1000 second.
The ________ provides the safest tube current in the shortest possible time. correct answers mAs
Timer
The mAs timer measures the total ________. correct answers Tube Current
The mAs timer is located ________ the secondary coil of the step-up transformer. correct
answers After
The mAs timer is generally used with ________ generators. correct answers Falling Load
________ is used to provide consistency of radiographic quality. correct answers Automatic
Exposure Control (AEC)
AEC consists of a flat ________ chamber that is located between the ________ and the
________. correct answers 1) Ionization
2) Patient
3) Image Receptor
, AEC uses a ________ kVp, while the machine controls the ________. correct answers 1) Fixed
2) mAs
The shortest exposure time possible with an AEC is ________. correct answers 1 ms or 1/1000
second.
A ________ is a modern generator that takes advantage of extremely short time capabilities and
tube heat-loading potential. correct answers Falling Load Generator
With a falling load generator, the radiographer sets ________ and ________, and the generator
calculates the most efficient method of obtaining the required ________. correct answers 1) kVp
2) mAs
3) mAs
A ________ transformer consists of primary coils and secondary coils. correct answers Step-Up
or High-Voltage
A step-up transformer requires ________ current in order to operate. correct answers Alternating
The ________ coil of a step-up transformer receives voltage from the autotransformer . correct
answers Primary
Step-up transformers operate on the principle of ________. correct answers Mutual Induction
The ________ describes the number of turns in the wire in the primary coil, compared to the
number of turns in the wire of the secondary coil. correct answers Turns Ratio
Turns Ratio Formula (Autotransformer Law): correct answers
