Mosby 100 Review Questions for X-ray Equipment Operation Correctly Solved
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Course
Mosby
Institution
Mosby
Three-phase, 12 pulse full- wave rectification produces - ️️Direct current with 4% ripple
Three-phase, 6 pulse full-wave rectification produces - ️️Direct current with 13% ripple
Total brightness gain achieved using an image intensifer equals - ️️Flux gain x minification gain
Voltage...
Mosby 100 Review Questions for X-ray
Equipment Operation
Three-phase, 12 pulse full- wave rectification produces - ✔ ✔ Direct current with 4% ripple
Three-phase, 6 pulse full-wave rectification produces - ✔ ✔ Direct current with 13% ripple
Total brightness gain achieved using an image intensifer equals - ✔ ✔ Flux gain x minification gain
Voltage coming to the x-ray machine is kept constant through the use of a - ✔ ✔ Line voltage
compensator
Wavelength and frequency are - ✔ ✔ Inversely proportional to each other
Wavelength is defined as the distance from - ✔ ✔ Peak to peak of the wave
Waves of radiation are called - ✔ ✔ Sine waves
What changes AC to DC? - ✔ ✔ Rectifier
What device always delivers the shortest exposure time possible? - ✔ ✔ Falling load generator
What device increases voltage approximately 500 times? - ✔ ✔ Step-up transformer
What device is turned by a rotor? - ✔ ✔ Anode
What device may be used to ensure consistency of radiographic quality from one exposure to the next? -
✔ ✔ Automatic exposure control
What device spins at 10,000-12,000 rpm? - ✔ ✔ Anode
What device uses maximum heat storage ability of the tube to deliver mAs? - ✔ ✔ Falling load
generator
What is atomic mass? - ✔ ✔ The number of protons plus the number of neutrons
What is located in the x-ray circuit between the high-voltage transformer and the x-ray tube? - ✔ ✔
Rectifier
What is the most commonly used AEC? - ✔ ✔ Ionization chamber
What is the smallest particle of an element that retains the characteristics of the element? - ✔ ✔
Atom
What is the source of bremsstrahlung and characteristic rays? - ✔ ✔ Anode
, What is the transformer used to boost voltage to kilovoltage levels called? - ✔ ✔ Step-up
transformer
What percentage of energy in the x-ray tube is converted to x-rays? - ✔ ✔ 1%
A step-down transformer - ✔ ✔ Steps down voltage
A transformer that has more turns in the secondary coil than in the primary coil is called a - ✔ ✔
Step-up transformer
A variable transformer that is used to select kVp for the x-ray circuit is the - ✔ ✔ Autotransformer
Activating the rotor - ✔ ✔ reduces tube life
AECS may be tested using - ✔ ✔ Phantoms
An image intensifier's conversion factor is expressed as the ratio of - ✔ ✔ The luminance of the
output phosphor to the exposure rate at the input phosphor
As radiation strikes matter - ✔ ✔ The energy is transferred to the atoms according to the law of
conservation of energy
At what speed do x-rays travel? - ✔ ✔ The speed of light 186,000 miles per second
Calculating heat units for three-phase, 12-pulse equipment requires the use of _________ as a constant
Calculating heat units for single-phase equipment requires the use of ________ as a constant
Calculating heat units for three-phase, 6-pulse equipment requires the use of _______ as a constant - ✔
✔ 1.41
1.0
1.35
Choose all of the following statements that are accurate regarding electrostatic charges. - ✔ ✔
Electrostatics is the study of electric charges at rest.
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