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WorksheetsRAD: 1130 Study Guide Exam 1
Total questions: 40
Worksheet time: 25mins
What are the parts of the x-ray imaging system?
X-Ray Tube
High Voltage Generator
Operating Console
Table
What material is used to construct the x-ray table top?
Carbon Fiber
Aluminum
Vibranium
Hard Plastic
Carbon Fiber is radiopaque
(True or False)
(a)
What side of the x-ray circuit would the console be found on?
High Voltage
Low Voltage
Medium Voltage
Left Side
Based on the transformer law, potential
difference is directly proportional to what?
Turns Ratio
Cycles
Spurns Ratio
Current
Which type of transformer increases the current?
(a)
What are characteristics of the x-ray table (couch)?
Radiopaque or Radiolucent
Radiolucent
Radiopaque
What does mAs control?
Quality
Photons
Amperage
Which side of the x-ray circuit is
the high voltage side?
Primary Side
Secondary Side
Which type of transformer lowers voltage?
Step Up Transformer
Step Down Transformer
What ripple % would a 3-phase
6 pulse generator produce?
100%
86%
14%
1%
What type of tube attachment offers the largest range of movement?
Wall Mount
Ceiling Mount
Table Mount
Portable
What controls x-ray quality?
mA
kVp
The smaller the voltage ripple will mean the beam quality will be better.
True
False
When the tube is energized the electrons must travel from ___to ____?
Fast to slow
The cathode to the anode
The anode to the cathode
Slow to fast
What does a rectifier do?
Help electrons go in proper direction
Converts DC to AC current
Converts AC to DC current
Helps electrons go in a variety of directions
What type of current is required for x-ray production?
Direct Current
Alternating Current
Which type of transformer has more turns
on the secondary side vs the primary?
Primary Side
Secondary Side
Step up transformer
Step down transformer
How is the voltage coming to the
x-ray machine kept constant?
(a)
Where would we find the step-up
transformer in the x-ray circuit?
After the autotransformer and before the rectifiers
After the rectifiers and before the autotransformer
What are characteristics of a high frequency generator
when compared to the other types of generators?
Large Ripples
Minimal to no ripple
14%
What directly controls the quality of the x-ray beam?
(a)
What is the main function of the exposure switch?
Initiate Exposure
Terminate Exposure
If the input voltage is 20,000 volts, what would be the
output voltage at the secondary side of a step
down transformer with a turn ratio of 100:1?
20,000 v
200 v
20 v
2 v
What is the relationship b/t current (amperage )
and the transformer turns ratio?
Inversely proportional
proportional
What effect does a step-up transformer have on power?
Increases Power
No effect on Power
Decreases Power
What does the timer do in an x-ray circuit?
Terminates the exposure
Initiates exposure
What lock on the x-ray tube allows us to
set the SID for the table bucky?
Horizontal Lock
Vertical Lock
Transverse Lock
Fluoro/ tilting tables allows the table to
position in which directions?
0-35 degrees cephalic
0-30 degrees cephalic
0-90 degrees caudal
0-100 degrees caudal
An increase/decrease of the voltage as it passes
through a transformer is also a change in what?
Amplitude
Amps
Current
Volts
What is needed for mutual induction to work?
Alternating Current
Directional Current
Radiation quantity = x-ray intensity (T/F)?
(a)
Radiation quality = x-ray penetrability (T/F)?
(a)
What does the filament transformer
do to voltage and current?
Step down our voltage and step up the current
Step up our voltage and step up the current
Step down the voltage and step down the current
Automatic Exposure Control…is a type of
(a)
What side is the low voltage side?
Primary
Secondary
Tracery
An autotransformer can only step down?
(T or F)
(a)
With reference to the study guides diagram is
"E" the line meter in the diagram?
True
False
A full wave rectification has a ______ % ripple effect
100%
80%
14%
1%
What direction does the sine wave go?
Positive to Negative
Negative to Positive
North to South
East to West
