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WorksheetsFinal Review
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
In the x-ray circuit, this device adjusts voltage to 220 volts.
a)
Line voltage monitor
b)
Line voltage compensator
c)
Main switch
d)
Rectifier
2.
What helps to limit leakage radiation and decreases the risk of electrical shock?
a)
Collimator
b)
Cathode
c)
Step down transformer
d)
Tube housing
3.
To ensure that electrons travel from cathode to anode, the tube needs to have:
a)
Direct current
b)
High current
c)
Alternating current
d)
Rheostat
4.
Which tube interaction involves a K shell electron to be ejected?
a)
Photoelectric absorption
b)
Bremsstrahlung
c)
Characteristic interaction
d)
Compton interaction
5.
One of the main events to happen at the cathode is:
a)
Thermionic cloud
b)
Photoemission
c)
Rectification
d)
Mutual induction
6.
Which of the following can be found in the filament circuit?
a)
Main switch
b)
Rectifier
c)
Step down transformer
d)
None of the answers are correct
7.
Which of the following is a function of filtration?
a)
Increase patient dose
b)
Absorb high energy photons
c)
Even out differences in tissue
d)
Absorb low energy photons
8.
Which device converts AC to DC in the tube circuit?
a)
Rectifier
b)
Step up transformer
c)
Auto transformer
d)
Rheostat
9.
If the distance is changed to 80 inches what is the beam's intensity if it was 100 mR at 40 inches?
a)
400 mR
b)
200 mR
c)
50 mR
d)
25 mR
10.
The filament can be found in what part of the tube construction?
a)
Anode
b)
Cathode
c)
Rotor
d)
Induction motor
11.
Which of the following is an example of inherent filtration
a)
Collimator
b)
Mirror
c)
Glass envelope
d)
Compensating filter
12.
What helps to direct electrons to the anode?
a)
Filament
b)
Focusing cup
c)
Induction motor
d)
Rectifier
13.
Which side of a step up transformer will have fewer windings?
a)
Primary side
b)
Secondary side
c)
Both sides are equal
d)
Depends on the type of transformer
14.
If the kVp is below 70, which interactions will happen at the anode?
a)
Bremsstrahlung
b)
Characteristic
c)
Photoelectric
d)
Compton
15.
How much total filtration is required for unit operating above 70 kVp?
a)
1 mm Al equivalent
b)
2.5 mm Al equivalent
c)
1 mm Pb equivalent
d)
2.5 mm Pb equivalent
16.
Which of the following generators will produce only a 1% voltage ripple?
a)
Single phase 2 pulse
b)
Three phase 6 pulse
c)
High frequency
d)
Capacitor discharge
17.
The quantity of the x-ray beam is:
a)
Intensity
b)
X-ray number
c)
Quality
d)
Intensity and x-ray number
18.
What function does the autotransformer serve in the x-ray circuit?
a)
Increase volts to kilovolts
b)
Adjust incoming voltage
c)
Enable the kVp selection
d)
Convert AC into DC
19.
The distance from the peak of one wave to the peak of the next wave is called:
a)
Amplitude
b)
Frequency
c)
Velocity
d)
Wavelength
20.
If a photon gets created outside of the focal spot, what is this photon referred to as:
a)
Off focus radiation
b)
Leakage radiation
c)
Primary radiation
d)
Anode radiation
21.
What helps determine which focal spot will be used during the exposure?
a)
kVp selection
b)
mA station
c)
SID
d)
Image receptor size
22.
What charge does the anode have in an x-ray tube?
a)
Positive
b)
Negative
c)
Neutral
23.
What does the atomic number tell us about the chemical element?
a)
Number of protons and neutrons
b)
Number of neutrons
c)
Number of protons
d)
Number of electron shells
24.
When doing an abdomen x-ray, which part of the body should be placed on the cathode side of the tube?
a)
Lower abdomen
b)
Upper abdomen
c)
Doesn't matter
25.
What helps to rotate the anode?
a)
Induction motor
b)
Generator
c)
Rheostat
d)
None of the answers are correct
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