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ASNT Study Guide (2nd Edition 2023) Chapter 3 X-RAYS questions and answers.
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ASNT Study Guide (2nd Edition 2023) Chapter 3 X-RAYS questions and answers.
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ASNT Study Guide (2nd Edition 2023)Chapter 3 X-RAYS
A rod anode X-ray machine will emit X-rays:
A: out one side of the X-ray machine
B: straight out the end of the X-ray machine
C: in a 360 degree direction
D: back toward the operator - correct answer-C: in a 360 degree direction
Applied amperage across the filament in an X-ray tube has a direct bearing on:
A: producing more or less radiation
B: producing more or fewer protons
C: the inherent shielding required
D: penetration - correct answer-A: producing more or less radiation
Applied voltage in an X-ray tube has a direct bearing on producing more or less:
A: penetration
B: radiation
C: electrons
D: heat - correct answer-A: penetration
For a safety device or interlock to be bypassed, permission must be obtained from:
A: the radiation safety officer
B: the radiographer
C: the level III
D: the Nuclear Regulatory Commission - correct answer-A: the radiation safety officer
High-speed electrons striking a target produce primarily what?
A: Gamma radiation
B: X-radiation
C: Heat
D: Alpha and beta particles - correct answer-C: Heat
Most of the energy used in producing X-rays converts to:
A: photon fields
B: heat
C: X-ray production
D: a phenomenon known as leakage fields - correct answer-B: heat
Most X-ray tubes are fitted with a window made of:
A: boron
B: tungsten
C: molybdenum
D: beryllium - correct answer-D: beryllium
, Penetrating a thicker or denser material would require a source with:
A: more curies
B: more activity
C: more energy (shorter wavelength)
D: less energy (longer wavelength) - correct answer-C: more energy (shorter wavelength)
Scatter radiation from the different types of X-ray tubes will be:
A: greater from a directional X-ray tube than a 360 degree emitter
B: greater from a 360 degree emitter than a directional X-ray tube
C: the same for both types of X-ray tubes
D: not able to determine as the two types of tubes emit in different directions - correct
answer-B: greater from a 360 degree emitter than a directional
the filament of an X-ray tube is energized by electrical current. The difference in electrical
potential draws the free electrons to the ____________. As they strike at such a high speed,
X-rays are produced.
A: focusing cup
B: target
C: anode
D: filament - correct answer-B: target
The following wording (or something similar) shall be labeled on an X-ray machine:
A: Caution - light rays produced when energized
B: Caution - gamma rays produced when energized
C: Caution - beta rays produced when energized
D: Caution - X-rays produced when energized - correct answer-D: Caution - X rays produced
when energized
The kilovoltage of an X-ray machine is mainly adjusted to change the:
A: penetrating ability of the radiation
B: quantity of radiation produced
C: amount of heat created by the filament
D: amount of cooling needed for the target - correct answer-A: penetrating ability of the
radiation
The milliamperage of an X-ray machine is:
A: directly proportional to the quantity of X-rays produced
B: inversely proportional to the quantity of X-rays produced
C: directly proportional to the penetration of X-rays produced
D: inversely proportional to the penetration of X-rays produced - correct answer-A: directly
proportional to the quantity of X-rays produced
The process of an electron slowing down as it travels around the nucleus of an atom and
creating an X-ray is called:
A: bremsstrahlung
B: characteristic X-rays
C: polychromatic radiation
D: monochromatic radiation - correct answer-A: bremsstrahlung
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