MEAGHAN PIRETTI STUDY GUIDE LATEST EXAMS WITH APPROVED
QUESTIONS AND CORRECT ANSWERS || AND WELL REVISED RATIONALES
||100% LATEST UPDATE || GUARANTEED PASS || BRANDNEW!!!!!!!!!!!
Which part of the x-ray tube is positively charged?
A. Cathode
B. Anode
C. Filament
D. Focusing cup
Answer: B
Rationale: The anode is the positive side of the x-ray tube. It attracts electrons emitted from
the negatively charged cathode. This attraction is essential for x-ray production because
when high-speed electrons strike the anode target, x-rays are produced. The cathode is
negative and serves as the electron source.
Which component of the x-ray tube is negatively charged?
A. Anode
B. Cathode
C. Glass envelope
D. Tube housing
Answer: B
Rationale: The cathode is negatively charged and contains the filament and focusing cup. It
is responsible for producing and directing electrons toward the anode. Without the
cathode’s negative charge, electron flow would not occur, and x-rays could not be generated.
What is the primary function of the glass envelope in an x-ray tube?
A. Produce electrons
B. Increase voltage
C. Maintain a vacuum and contain components
D. Convert AC to DC
Answer: C
Rationale: The glass envelope maintains a vacuum inside the x-ray tube, which is essential
because electrons must travel from cathode to anode without obstruction. It also contains
the internal components and prevents air interference, which would otherwise scatter
electrons and reduce efficiency.
,What is the main purpose of the tube housing?
A. Produce x-rays
B. Convert electrons into heat
C. Prevent leakage radiation and provide insulation
D. Focus the electron beam
Answer: C
Rationale: The tube housing protects the x-ray tube and prevents leakage radiation from
escaping. It also provides electrical insulation and cooling support. Without proper housing,
both patient and operator exposure to stray radiation would increase.
Which part of the x-ray tube contains the filament and focusing cup?
A. Anode
B. Cathode
C. Glass envelope
D. Rotor
Answer: B
Rationale: The cathode contains the filament (which produces electrons when heated) and
the focusing cup (which directs electrons into a narrow beam toward the anode). These
structures are essential for controlling the electron stream.
What are the two main types of anodes used in x-ray tubes?
A. Fixed and dynamic
B. Rotating and stationary
C. Positive and negative
D. Primary and secondary
Answer: B
Rationale: X-ray tubes use either stationary (fixed) anodes or rotating anodes. Rotating
anodes distribute heat over a larger surface area, allowing higher exposure techniques and
reducing damage to the target.
Which material is most commonly used for the anode target?
,A. Aluminum
B. Copper
C. Tungsten
D. Lead
Answer: C
Rationale: Tungsten is used because it has a very high atomic number and an extremely high
melting point. This makes it ideal for withstanding the intense heat and producing efficient x-
ray generation through bremsstrahlung and characteristic interactions.
Why is tungsten ideal for use in the anode?
A. It is lightweight
B. It conducts electricity poorly
C. It has a high atomic number and high melting point
D. It is magnetic
Answer: C
Rationale: Tungsten’s high atomic number increases x-ray production efficiency, while its
high melting point allows it to withstand extreme heat generated during x-ray exposure. This
makes it the standard material for x-ray targets.
What is the function of the induction motor in a rotating anode system?
A. Produces x-rays
B. Converts x-rays to images
C. Spins the anode using electromagnetic induction
D. Controls voltage output
Answer: C
Rationale: The induction motor rotates the anode using electromagnetic fields. This rotation
spreads heat over a larger area of the anode target, preventing overheating and allowing
higher exposure techniques.
What is the stator in an induction motor?
A. Rotating inner component
B. Stationary outer component that creates a magnetic field
C. Cooling system
D. Filament control device
, Answer: B
Rationale: The stator is the stationary outer part of the induction motor. When energized, it
creates a rotating magnetic field that causes the rotor to spin. This is essential for rotating
the anode efficiently.
What is the rotor responsible for in the x-ray tube?
A. Producing electrons
B. Converting AC to DC
C. Spinning the anode target
D. Cooling the tube housing
Answer: C
Rationale: The rotor is connected to the anode and spins it at high speed. This rotation
spreads heat over a larger surface area, reducing the risk of thermal damage during x-ray
production.
What is the function of bearings in the induction motor?
A. Produce electrons
B. Support and allow smooth rotation
C. Convert voltage
D. Focus the beam
Answer: B
Rationale: Bearings reduce friction and support the rotor, allowing smooth and stable
rotation of the anode. Without them, mechanical wear and heat buildup would quickly
damage the system.
What is the anode heel effect?
A. Increase in electron speed
B. Variation in x-ray intensity across the beam
C. Conversion of x-rays into light
D. Cooling of the anode
Answer: B
QUESTIONS AND CORRECT ANSWERS || AND WELL REVISED RATIONALES
||100% LATEST UPDATE || GUARANTEED PASS || BRANDNEW!!!!!!!!!!!
Which part of the x-ray tube is positively charged?
A. Cathode
B. Anode
C. Filament
D. Focusing cup
Answer: B
Rationale: The anode is the positive side of the x-ray tube. It attracts electrons emitted from
the negatively charged cathode. This attraction is essential for x-ray production because
when high-speed electrons strike the anode target, x-rays are produced. The cathode is
negative and serves as the electron source.
Which component of the x-ray tube is negatively charged?
A. Anode
B. Cathode
C. Glass envelope
D. Tube housing
Answer: B
Rationale: The cathode is negatively charged and contains the filament and focusing cup. It
is responsible for producing and directing electrons toward the anode. Without the
cathode’s negative charge, electron flow would not occur, and x-rays could not be generated.
What is the primary function of the glass envelope in an x-ray tube?
A. Produce electrons
B. Increase voltage
C. Maintain a vacuum and contain components
D. Convert AC to DC
Answer: C
Rationale: The glass envelope maintains a vacuum inside the x-ray tube, which is essential
because electrons must travel from cathode to anode without obstruction. It also contains
the internal components and prevents air interference, which would otherwise scatter
electrons and reduce efficiency.
,What is the main purpose of the tube housing?
A. Produce x-rays
B. Convert electrons into heat
C. Prevent leakage radiation and provide insulation
D. Focus the electron beam
Answer: C
Rationale: The tube housing protects the x-ray tube and prevents leakage radiation from
escaping. It also provides electrical insulation and cooling support. Without proper housing,
both patient and operator exposure to stray radiation would increase.
Which part of the x-ray tube contains the filament and focusing cup?
A. Anode
B. Cathode
C. Glass envelope
D. Rotor
Answer: B
Rationale: The cathode contains the filament (which produces electrons when heated) and
the focusing cup (which directs electrons into a narrow beam toward the anode). These
structures are essential for controlling the electron stream.
What are the two main types of anodes used in x-ray tubes?
A. Fixed and dynamic
B. Rotating and stationary
C. Positive and negative
D. Primary and secondary
Answer: B
Rationale: X-ray tubes use either stationary (fixed) anodes or rotating anodes. Rotating
anodes distribute heat over a larger surface area, allowing higher exposure techniques and
reducing damage to the target.
Which material is most commonly used for the anode target?
,A. Aluminum
B. Copper
C. Tungsten
D. Lead
Answer: C
Rationale: Tungsten is used because it has a very high atomic number and an extremely high
melting point. This makes it ideal for withstanding the intense heat and producing efficient x-
ray generation through bremsstrahlung and characteristic interactions.
Why is tungsten ideal for use in the anode?
A. It is lightweight
B. It conducts electricity poorly
C. It has a high atomic number and high melting point
D. It is magnetic
Answer: C
Rationale: Tungsten’s high atomic number increases x-ray production efficiency, while its
high melting point allows it to withstand extreme heat generated during x-ray exposure. This
makes it the standard material for x-ray targets.
What is the function of the induction motor in a rotating anode system?
A. Produces x-rays
B. Converts x-rays to images
C. Spins the anode using electromagnetic induction
D. Controls voltage output
Answer: C
Rationale: The induction motor rotates the anode using electromagnetic fields. This rotation
spreads heat over a larger area of the anode target, preventing overheating and allowing
higher exposure techniques.
What is the stator in an induction motor?
A. Rotating inner component
B. Stationary outer component that creates a magnetic field
C. Cooling system
D. Filament control device
, Answer: B
Rationale: The stator is the stationary outer part of the induction motor. When energized, it
creates a rotating magnetic field that causes the rotor to spin. This is essential for rotating
the anode efficiently.
What is the rotor responsible for in the x-ray tube?
A. Producing electrons
B. Converting AC to DC
C. Spinning the anode target
D. Cooling the tube housing
Answer: C
Rationale: The rotor is connected to the anode and spins it at high speed. This rotation
spreads heat over a larger surface area, reducing the risk of thermal damage during x-ray
production.
What is the function of bearings in the induction motor?
A. Produce electrons
B. Support and allow smooth rotation
C. Convert voltage
D. Focus the beam
Answer: B
Rationale: Bearings reduce friction and support the rotor, allowing smooth and stable
rotation of the anode. Without them, mechanical wear and heat buildup would quickly
damage the system.
What is the anode heel effect?
A. Increase in electron speed
B. Variation in x-ray intensity across the beam
C. Conversion of x-rays into light
D. Cooling of the anode
Answer: B
