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