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107 exam 1

QuestionAnswer
What are disadvantages of three phase equipment ? Cost
What is the formula for calculating high voltage generator power? Power = max mA (@100 kVp and 100 ms) × 100 kVp
The rotating anode is turned by a: Magnetic field
Arcing is caused by: Aging tube, coated inside by vaporized tungsten
A tube rating chart shows: Maximum exposure times
What technical factors determine quality and quantity of x-ray beam? KVp=quality mAs=quantity
Allows high anode heating with small effective focal spots: Line focus principle
The step-down transformer is located in: The filament circuit
Autotransformer is located in: The control console
First component to receive power: Autotransformer
Components for rectification: Solid state semiconductors
FORTRAN: Oldest computer language for science and math equations
PSL: during read step: Emitted light is detected, measured.
PSL: during erase step: Residual metastable electrons moved to ground state by intense light.
UNVAC: Developed in 1951; 1st commercial successful general purpose stored-program electronic digital computer.
COBOL: Language developed for coding business data.
ADA: Official computer language of US Dept. of Defence.
Created by: evanlbates
 

 



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