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Radiography Test

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Zachariah Atteberry
Quiz by Zachariah Atteberry, updated more than 1 year ago
Zachariah Atteberry
Created by Zachariah Atteberry over 8 years ago
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Resource summary

Question 1

Question
The distance between two consecutive corresponding points on a wave is?
Answer
  • Frequency
  • Cycles
  • Wave
  • Wavelength

Question 2

Question
X-rays are?
Answer
  • Visible with ultraviolet light
  • Visible while in the dark room
  • Only visible when it is being shot
  • They are like JOHN CENA and you cant see them

Question 3

Question
The higher that the frequency of x-ray waves are...
Answer
  • The higher the penetration
  • The lower the penetration

Question 4

Question
Wave length is?
Answer
  • Variable
  • Does not change since it goes in only a straight line

Question 5

Question
X-ray penetration depends on atomic number, x-ray energy, and density
Answer
  • True
  • False

Question 6

Question
Waves that are longer have___?
Answer
  • Lower frequency
  • Higher frequency

Question 7

Question
The lower the frequency the _____ the penetration power
Answer
  • Lower
  • Higher

Question 8

Question
The cathode is?
Answer
  • Negative
  • Positive

Question 9

Question
The anode is?
Answer
  • Positive
  • Negative

Question 10

Question
Which consists of the wire filament and focusing cup?
Answer
  • Anode
  • Cathode

Question 11

Question
X-rays are?
Answer
  • 90% heat and 9% X-rays
  • 99% heat and 1% X-rays
  • 1% heat and 99% X-rays
  • 50% heat and 50% X-rays

Question 12

Question
What provides and houses the vacuum environment?
Answer
  • Anode
  • Cathode
  • Glass envelope
  • Focusing cup
  • Wire filament
  • Aluminum filter

Question 13

Question
Produces electrons when heated
Answer
  • Anode
  • Cathode
  • Wire filament
  • Focusing cup

Question 14

Question
What is the wire filament made of and why?
Answer
  • Tungsten; high atomic number and high melting point
  • Molybdenum; low atomic number and high melting point
  • Copper; high atomic number and low melting point necessary for electron production
  • Aluminum; high atomic number, high melting point

Question 15

Question
mA is?
Answer
  • How many electrons
  • Speed of the electrons

Question 16

Question
kVp is?
Answer
  • Speed of electrons
  • How many electrons

Question 17

Question
The higher that an atomic number is....
Answer
  • The more dense it is
  • The less dense it is

Question 18

Question
If x-ray beams went all the way to the film..
Answer
  • You would see black
  • You would see white

Question 19

Question
If you see white on the finished radiograph, this tells you?
Answer
  • The x-ray beams were absorbed
  • The x-rays beams penetrated and reached the film

Question 20

Question
What is the wire filament heated by?
Answer
  • Low energy circuit
  • High energy circuit

Question 21

Question
X-rays beams can cause cataracts in humans
Answer
  • True
  • False

Question 22

Question
Objects that fluoresce or emit light after an x-ray has been shot indicates that the x -ray machine wire filament is faulty
Answer
  • True
  • False

Question 23

Question
The focusing cup is made of what material and why?
Answer
  • Molybdenum; high melting point and poor conductor of heat
  • Tungsten; high melting point and great conductor of heat

Question 24

Question
The target of the anode is made of what material and why?
Answer
  • Tungsten; dissipates heat
  • Molybdenum; high melting point

Question 25

Question
What would tell you that heat damage have occurred in a dental anode?
Answer
  • Cathode will not make a cloud of electrons
  • Finished radiograph is too light
  • There will be no radiograph made
  • You will hear a loud machinery noise inside of the anode side

Question 26

Question
The heel effect is more prominent in?
Answer
  • Rotating anodes
  • Stationary anodes

Question 27

Question
What is the heel effect?
Answer
  • causes increased absorption of x-ray photons by target before can reach patient due to decreased intensity at anode side
  • causes increased absorption of x-ray electrons by the cathode
  • Results in crazing which is when glass pieces fall and can "arch" the current
  • Results in decreased absorption of quanta at the target before can reach patient and image receptor due to increased intensity on cathode side

Question 28

Question
The most common focal spot in a veterinary machine is?
Answer
  • 2mm squared
  • 3mm squared
  • 7-8mm squared
  • 10mm squared

Question 29

Question
In regards to x-ray, pneumbra is?
Answer
  • 1996 band formed in France and wrote the song "Tragical Memories"
  • Lighter than normal x-ray phenomon
  • Larger focal spots that form halo effect on finished radiograph
  • Darker than normal x-ray phenomon

Question 30

Question
During the heel effect, there is?
Answer
  • Decreased intensity at anode side
  • Decrease intensity at cathode side
  • Increased intensity at cathode side
  • Increased intensity at anode side

Question 31

Question
In most situations, larger focal spots produce images with?
Answer
  • Greater detail
  • Reduction of detail

Question 32

Question
The ____ the anode, the more severe that the heel effect becomes
Answer
  • faster
  • slower
  • larger
  • steeper

Question 33

Question
Which would have the larger focal spot to dissipate heat?
Answer
  • Rotating anode
  • Stationary anodes

Question 34

Question
Is a tightly focused x-ray beam that exits the tube window
Answer
  • Effective focal spot
  • Focal spot
  • Line focus principle
  • Anode beam
  • Focusing cup

Question 35

Question
Which is larger?
Answer
  • Actual focal spot
  • Effective focal spot

Question 36

Question
In an x-ray, the dog's head is usually towards the?
Answer
  • Cathode
  • Anode

Question 37

Question
Outer edges of focal spot become so hot that the size of the focal spot is enlarged, a phenomenon referred to as?
Answer
  • Line focus principle
  • Focal spot bloom
  • Effective focal spot
  • Heel effect

Question 38

Question
Net result of focal spot bloom is?
Answer
  • Increase in quality
  • Loss in sharpness
  • Loss in sharpness and definition
  • increase in sharpness

Question 39

Question
Most tube failures happen because of?
Answer
  • Cathode failure
  • Anode failure
  • Filament failure
  • Focusing cup failure

Question 40

Question
The x-ray does not have to cool between x-rays
Answer
  • True
  • False

Question 41

Question
Which is not true of the standby current?
Answer
  • Prolongs life of the tube
  • Produces an electron cloud prior to an actual x-ray (good for inhalation and exhalation)
  • Preheats filament to a low temperature when X-ray machine is turned on

Question 42

Question
You are going to take an x-ray of the abdomen with the use of the preexposure button. You are waiting until?
Answer
  • Expiration
  • Inspiration

Question 43

Question
You are going to take an x-ray of the thorax with the use of the preexposure button. You are waiting until?
Answer
  • Expiration
  • Inspiration

Question 44

Question
If the film is transparent or light after processing, there is most likely an issue with the?
Answer
  • Anode
  • Cathode
  • Filament
  • Preexposure button

Question 45

Question
Firm blackness that is not uniform could be due to?
Answer
  • Anode target failure
  • Anode bearings failure
  • Glass envelop damage
  • Filament failure
  • Cathode failure

Question 46

Question
Which is most likely to fail with the use of preexposure button over an extended period of time?
Answer
  • Anode bearings
  • Anode target
  • Cathode
  • Glass envelope
  • Filament

Question 47

Question
The mAs meter on the machine is stuck. You suspect?
Answer
  • Filament failure
  • Anode target failure
  • Cathode failure
  • Preexposure button failure
  • Anode bearings failure

Question 48

Question
You should use ___ mAs techniques when possible
Answer
  • high
  • low

Question 49

Question
What may cause arcing?
Answer
  • Glass envelop damage
  • Cathode failure
  • Anode failure
  • Effective focal spot bloom

Question 50

Question
Provides the electrical potential to drive the electron cloud in stream from cathode to anode
Answer
  • high voltage circuit
  • Low voltage circuit

Question 51

Question
Provides electricity to heat the filament
Answer
  • High voltage circuit
  • Low voltage circuit

Question 52

Question
Reduces voltage of incoming line to about 10 volts
Answer
  • Autotransformer
  • Step-up transformer
  • Step-down transformer
  • Biotransformer

Question 53

Question
In general, what part of the x-ray dissipates heat for the entire machine?
Answer
  • Oil
  • Glass envelope
  • Anode
  • Focusing cup
  • Filament

Question 54

Question
Controls amount of kVP across the x-ray tube
Answer
  • Autotransformer
  • Step-up transformer
  • Step-down transformer
  • Biotransformer

Question 55

Question
Which circuit is connected to the mA control on the console
Answer
  • Low voltage circuit
  • High voltage circuit
  • Autotransformer
  • Step-up transformer

Question 56

Question
You want to keep exposure times of 1/30 second or longer
Answer
  • True
  • False

Question 57

Question
Which is used for portable units
Answer
  • Half wave rectification
  • Full wave rectification

Question 58

Question
If you want to decrease potential of x-ray exposure to the technician, use a timer switch
Answer
  • True
  • False

Question 59

Question
Which only uses the positive part of the electrical current in regards to half way rectification?
Answer
  • Dental units
  • Stationary units

Question 60

Question
Why are rectifiers used?
Answer
  • When anode gets too hot, electrons can flow back to filament and damage it
  • When cathode gets too hot, electrons can cause damage to the glass envelope
  • "crazing" and "arcing" can both occur
  • X-rays that are constantly used can result in anode bearing damage which results in lighter x-rays

Question 61

Question
What does a colimator do?
Answer
  • Controls size of x-ray
  • Controls heat of x-ray
  • Controls strength of x-ray
  • Helps prevent focal spot blooming

Question 62

Question
Scatter radiation is a negative result of an uncontrolled beam that can result in?
Answer
  • Cathode damage and failure
  • Anode bearing failure
  • Oil leakage and overheating
  • Fogs the film

Question 63

Question
Coning down prevents?
Answer
  • Damage to the cathode
  • Damage to personnel
  • Damage to the filament
  • Overheating

Question 64

Question
You are working in California and the X-ray machine you are using has an output of 75 kVp. The state law in California says that you are required to have which of the following on your x-ray machine?
Answer
  • 2.5mm aluminum filter
  • Collimator (AKA: Coning down)
  • Focusing cup
  • Filament

Question 65

Question
What is the #1 cause of artifacts on a radiograph?
Answer
  • Motion
  • Filament failure
  • Cathode failure
  • Glass window cracking (crazing and arcing)

Question 66

Question
What does the control panel not include?
Answer
  • Warning light
  • kVp and mA selector
  • voltage compensator
  • Exposure button
  • Timer
  • Emergency turn off switch

Question 67

Question
Which is not a factor of X-ray tube rating?
Answer
  • Focal spot size
  • Target angle
  • Anode speed
  • Electrical current
  • Alloy composition

Question 68

Question
What do X-ray tube ratings determine?
Answer
  • kVP
  • mA
  • How long can be used without overloading the tube
  • All of the above

Question 69

Question
What adjusts the transformer if needed when electrical output from incoming line is inconsistent?
Answer
  • Rectification
  • Voltage compensator
  • Aluminum filter
  • Colimator

Question 70

Question
A three phase generator is more powerful than a single phase generator because there is an almost always constant current between anode and cathode since it superimposes three single phase currents out of phase with each other
Answer
  • True
  • False

Question 71

Question
The mA cannot be controlled when air molecules interfere with the electron flow following glass envelope damage because there is less x-rays produced at the target area
Answer
  • True
  • False

Question 72

Question
The negatively charged particle of an atom is?
Answer
  • Electron
  • Proton

Question 73

Question
A radiograph is synonymous with an x-ray
Answer
  • True
  • False

Question 74

Question
Frequency is measured how?
Answer
  • Cycles of the wave that pass stationary point per second
  • Cycles of the wave that pass stationary point per minute
  • Cycles of the wave that pass stationary point per hour

Question 75

Question
Atoms consist of?
Answer
  • Particles
  • Electrons
  • Neutrons
  • All of the above

Question 76

Question
X-ray machine rays can bend and turn corners as needed which is why safety glasses are required
Answer
  • True
  • False

Question 77

Question
The actual beam from a machine is called?
Answer
  • X-ray
  • Radiograph

Question 78

Question
X-rays can excite or ionize atoms which can be a source of tumors and tissue damage if precautions are not taken
Answer
  • True
  • False

Question 79

Question
The guy that discovered x-rays and documented them in 1895 is: [blank_start]Wilhelm Conrad Roentgen[blank_end]
Answer
  • Wilhelm Conrad Roentgen

Question 80

Question
Which of the following do we need to produce an x-ray
Answer
  • Source of electrons
  • Way to accelerate electrons from one side of the tube to the other
  • Vacuum environment to remove air molecules and prevent oxidation
  • Target for electrons to collide with and interact with to produce x-rays
  • All of the above

Question 81

Question
A mammography machine is likely to be made of?
Answer
  • Tungsten
  • Molybdenum

Question 82

Question
Why is the base of the anode copper?
Answer
  • Draws heat away from target
  • Used to help make electrons and shoot them forward
  • Prevent scatter radiation as a result of stray electrons on their way from the cathode side
  • All of the above are true

Question 83

Question
Which of the following anodes will rotate on its axis through the center of the tube
Answer
  • Stationary anode
  • Portable anode
  • Dental anode
  • Disk shaped anode
  • Portable units and dental units both rotate on their axis

Question 84

Question
What is the red arrow pointing to?
Image:
f2cc348d-5aa4-4d9f-9f3c-ccb8d812d775 (image/png)
Answer
  • Cathode
  • Anode

Question 85

Question
What is the red arrow pointing to?
Image:
2c43fef2-ea3c-4fa5-8ad9-ad70d3c292f0 (image/png)
Answer
  • Cathode
  • Anode

Question 86

Question
What is the red arrow?
Image:
2b1bc054-74ef-4eb1-8d95-067730780650 (image/png)
Answer
  • Oil
  • Glass envelope
  • Window
  • Filter

Question 87

Question
What is the red arrow pointing to?
Image:
f03bc47d-3ff4-407a-aa16-8832f2d8839b (image/png)
Answer
  • Filament
  • Focusing cup
  • Window
  • Filter
  • Both Filament and focusing cup

Question 88

Question
The red arrow is pointing towards?
Image:
4cf9aef7-3940-4572-bf6f-b16c1d879961 (image/png)
Answer
  • Target
  • Cathode filament and focusing cup
  • Glass envelope
  • Window
  • Filter

Question 89

Question
Radiation is emitted from the target area in a ___ shape with the heel effect
Answer
  • Conical
  • Square

Question 90

Question
Which is the most limited in mA and has limited use on large body parts?
Answer
  • Portable anodes
  • Disk shaped anodes

Question 91

Question
How do you get mAs?
Answer
  • mA x time
  • mA x kVp
  • mA x time divided by kVp

Question 92

Question
Waves from high frequency generators are usually?
Answer
  • Square
  • Circular
  • Conical

Question 93

Question
Watery with lots of air require?
Answer
  • Higher mA
  • Lower mA

Question 94

Question
Which is a normal mA setting?
Answer
  • 100
  • 44

Question 95

Question
Which is a normal Kvp setting?
Answer
  • 46
  • 200

Question 96

Question
The primary purpose of the x-ray tube is to stop stray radiation AND prevent damage to internal components
Answer
  • True
  • False

Question 97

Question
Do shorter or longer wave lengths have better penetration?
Answer
  • Shorter
  • Longer

Question 98

Question
Bundles of energy that are carried by the wave in an x-ray beam are called?
Answer
  • Photons
  • Quanta
  • Neutrons
  • Both Quanta and Photons

Question 99

Question
Specific target angle that produces effective focal spot that will be square and much smaller than the actual focal spot
Answer
  • Heel effect
  • Line focus principle
  • Focal spot zoom
  • Focal spot bloom

Question 100

Question
Which produces more heat?
Answer
  • 500 mA
  • 300 mA

Question 101

Question
The kilovoltage applied between the anode and cathode will later translate into penetrating power
Answer
  • True
  • False

Question 102

Question
If anode bearings fail completely in a machine, you will hear a loud noise almost like a machinery noise from the anode side when attempting to use the exposure or pre-exposure button
Answer
  • True
  • False

Question 103

Question
Aluminum filters help to?
Answer
  • Remove low energy photons
  • Remove high energy photons
  • Remove high energy electrons
  • Remove low energy electrons

Question 104

Question
If the warning light turns on during the x-ray exposure, this indicates an issue with the machine and requires immediate technical support
Answer
  • True
  • False

Question 105

Question
Which has more filaments
Answer
  • Portable machines
  • Floor models

Question 106

Question
The heel effect is the result of?
Answer
  • X-ray emission that is nearly parallel to the target itself
  • X-ray emission that is nowhere near the target but is actually arced away
  • X-ray emission that is nearly perpendicular to the target itself

Question 107

Question
What kind of anode would you choose to decrease the heel effect?
Answer
  • 25 degrees angled anode
  • 15 degrees angled anode
  • 18 degrees angled anode

Question 108

Question
To withstand heat from electron bombardment, focal spot has to be larger than what is perfect for great detail so you find a medium between detail and size
Answer
  • True
  • False

Question 109

Question
IS the rotating anode, the filament is angled to direct electrons toward the beveled target area of the rotating disk to distribute heat
Answer
  • True
  • False

Question 110

Question
In stationary anodes, the face of the target is angled toward the window and cannot withstand high heats
Answer
  • true
  • false

Question 111

Question
Which will better absorb photons
Answer
  • More dense
  • Less dense

Question 112

Question
Rotating anodes can have smaller focal spots than stationary anodes
Answer
  • True
  • False

Question 113

Question
Anode bearing failure is most often seen in?
Answer
  • Rotating anodes
  • Stationary anodes

Question 114

Question
The majority of tube failure is user error
Answer
  • True
  • False

Question 115

Question
Rectifiers are placed in series in high voltage part of circuit to prevent conduction during negative phase
Answer
  • true
  • false

Question 116

Question
High-frequency generators often have hills and valleys
Answer
  • True
  • False

Question 117

Question
Full wave rectification current pulses 120 times/second and is twice the x-ray production and decreased exposure times
Answer
  • True
  • False

Question 118

Question
Which does not use tungsten?
Answer
  • Wire filament
  • Focusing cup
  • Anode
  • Target

Question 119

Question
The spindle which dissipates heat for the rotating anode is made up?
Answer
  • Tungsten
  • Molybdenum

Question 120

Question
Which is a poor conductor of heat?
Answer
  • Molybdenum
  • Tungsten

Question 121

Question
Which is better at dissipating heat?
Answer
  • Tungsten
  • Molybdenum

Question 122

Question
If the anode bearings are just starting to go bad, you will hear a machinery like noise and target will overheat
Answer
  • True
  • False
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