LRA 222 FINAL EXAM (50 QUESTIONS) WELL ANSWERED!!

LRA 222 FINAL EXAM (50 QUESTIONS) WELL
ANSWERED!!
The first component to receive power in the x-ray circuit is the _____.
Answers :autotransformer
A step-down transformer is located in the _____ circuit.


Answers :Filament
Voltage across the x-ray tube is most constant with _____.


Answers :high frequency generators
The _____ circuit provides electrons for the x-ray tube current.


Answers :filament
The operating console contains circuits that are _____.


Answers :low voltage only
A single-phase waveform has _____ ripple.


Answers :100%
With half-wave rectification, the current flows through the x-ray tube during the
_____ part of the cycle.


Answers :positive
Full-wave rectified, three-phase units provide an x-ray beam at _____ pulse(es) per
second.

, Answers :360
The three main parts of the x-ray imaging system are the x-ray tube, _____, and
_____.


Answers :operating console, high voltage generator
The step-up transformer increases voltage _____ times.


Answers :500-1000
The x-ray beam generated by the circuit with the _____ voltage ripple has the
_____ quantity and quality.


Answers :lowest, highest
What is the industry standard formula for calculating high voltage generator
power?


Answers :power = max mA (@100 kVp and 100 ms) 100 kVp
Most mammography units operate with _____ generators.


Answers :high frequency
The principal disadvantage of three-phase equipment is _____.


Answers :cost
The high voltage generator contains the high voltage transformer, the _____, and
the _____.


Answers :timer, rectifiers