Question 1

A three-phase, rectified current produces a voltage ripple of ____ pulses per Hz.

Accepted Answer

A)  3
B)  6
C)  9
D)  24E) C) and D)
F) All of the above

Question 2

Match the terms related to a typical x-ray circuit with the correct statement or definition.
-produces two pulses of electricity in 0.008 sec

Accepted Answer

A)  autotransformer
B)  rotor stator
C)  filament current
D)  three-phase power
E)  single-phase powerF) AECG) exposure switchH) rectification circuitI) A) and G)
J) F) and H) E

Question 3

When comparing the power rating between two different x-ray generators, it is important to know the type: single phase vs.three-phase.An exposure of 110 kV and 400 mA using a single-phase unit would yield a power rating of what?

Accepted Answer

30.8 kW

Question 4

Match the following choices with regard to x-ray equipment design and functionality.
-excellent x-ray tube positioning flexibility with patients on carts

Accepted Answer

A)  overhead tube suspension system
B)  C-arm tube suspension
C)  panoramic dental and facial system
D)  footboard
E)  floor-to-ceiling suspension systemF) shoulder supportsG) upright Bucky unitH) simulator systemsI) A) and E)
J) D) and G)

Question 5

When using AEC at 80 kVp, backup times

Accepted Answer

A)  must not exceed 600 mAs.
B)  are of no concern due to the AEC reliability.
C)  may range from 600 to 2000 mAs.
D)  should be manually set at 300% of the expected manual mAs.E) B) and D)
F) A) and B)

Question 6

Match the following choices with regard to x-ray equipment design and functionality.
-required for myelography procedures with the table tilted Trendelenburg

Accepted Answer

A)  overhead tube suspension system
B)  C-arm tube suspension
C)  panoramic dental and facial system
D)  footboard
E)  floor-to-ceiling suspension systemF) shoulder supportsG) upright Bucky unitH) simulator systemsI) C) and H)
J) D) and F)

Question 7

When compared to single-phase electrical current, three-phase power

Accepted Answer

A)  permits shorter exposures.
B)  produces 360 pulses per second.
C)  produces less voltage ripple.
D)  all of the aboveE) A) and C)
F) All of the above

Question 8

What is the approximate rms voltage of a single-phase sine wave with a kVp of 75?

Accepted Answer

The answer of What is the approximate rms voltage of...

Question 9

The kVp control is found between the

Accepted Answer

A)  incoming line and the exposure switch.
B)  autotransformer and the timer circuit.
C)  exposure switch and the step-up transformer.
D)  incoming line and the step-down transformer.E) A) and B)
F) None of the above

Question 10

The electrical device used to adjust the mA selection is a/an

Accepted Answer

A)  autotransformer.
B)  stator.
C)  diode.
D)  variable resistor.E) None of the above
F) A) and B)

Question 11

Where is the stator of the anode induction motor located?

Accepted Answer

A)  inside the glass envelope but outside the rotor
B)  outside the glass envelope and outside the rotor
C)  inside the glass envelope and inside the rotor
D)  outside the glass envelope but inside the rotorE) All of the above
F) B) and C)

Question 12

Match the following choices with regard to x-ray equipment design and functionality.
-used by orthodontists to assess the alignment of teeth and jaw disorders

Accepted Answer

A)  overhead tube suspension system
B)  C-arm tube suspension
C)  panoramic dental and facial system
D)  footboard
E)  floor-to-ceiling suspension systemF) shoulder supportsG) upright Bucky unitH) simulator systemsI) A) and F)
J) G) and H)

Question 13

Match the terms related to a typical x-ray circuit with the correct statement or definition.
-yields approximately 40% higher average energy per exposure

Accepted Answer

A)  autotransformer
B)  rotor stator
C)  filament current
D)  three-phase power
E)  single-phase powerF) AECG) exposure switchH) rectification circuitI) A) and E)
J) C) and D) D

Question 14

The diagnostic x-ray range is approximately

Accepted Answer

A)  10 to 1,200 mA.
B)  0.001 to 10 seconds.
C)  25 to 150 kVp.
D)  all of the aboveE) A) and B)
F) A) and C)

Question 15

Radiographic rooms equipped with a tilting table are primarily designed for performing ____ procedures.

Accepted Answer

A)  extremity
B)  surgical x-ray
C)  fluoroscopic
D)  C-armE) B) and C)
F) A) and C)

Question 16

At what point in the x-ray circuit is the rectification circuit located?

Accepted Answer

A)  between the semiconductors and the valve tubes
B)  between the step-down transformer and the rheostat
C)  between the step-up transformer and the x-ray tube
D)  between the thermionic diode tubes and the x-ray machinesE) All of the above
F) A) and B)

Question 17

Match the following choices with regard to x-ray equipment design and functionality.
-X-ray tube and image receptor are fixed to opposite ends of an arc design.

Accepted Answer

A)  overhead tube suspension system
B)  C-arm tube suspension
C)  panoramic dental and facial system
D)  footboard
E)  floor-to-ceiling suspension systemF) shoulder supportsG) upright Bucky unitH) simulator systemsI) A) and C)
J) A) and F)

Question 18

Present-day AEC technology utilizes

Accepted Answer

A)  ionization chamber technology.
B)  minimum reaction times as short as 1 ms.
C)  a pre-detector AEC chamber position.
D)  all of the aboveE) A) and C)
F) A) and D)

Question 19

The mA control is found between the

Accepted Answer

A)  incoming line and the exposure switch.
B)  autotransformer and the timer circuit.
C)  exposure switch and the step-up transformer.
D)  incoming line and the step-down transformer.E) B) and C)
F) All of the above

Question 20

Match the following choices with regard to x-ray equipment design and functionality.
-inexpensive tube support design typically seen in small clinics

Accepted Answer

A)  overhead tube suspension system
B)  C-arm tube suspension
C)  panoramic dental and facial system
D)  footboard
E)  floor-to-ceiling suspension systemF) shoulder supportsG) upright Bucky unitH) simulator systemsI) A) and D)
J) A) and C)

Exam 5: X-Ray Equipment

A three-phase, rectified current produces a voltage ripple of ____ pulses per Hz.

Correct AnswerverifiedShow Answer

Match the terms related to a typical x-ray circuit with the correct statement or definition. -produces two pulses of electricity in 0.008 sec

Correct AnswerverifiedE

When comparing the power rating between two different x-ray generators, it is important to know the type: single phase vs.three-phase.An exposure of 110 kV and 400 mA using a single-phase unit would yield a power rating of what?

Correct Answerverified30.8 kW

Match the following choices with regard to x-ray equipment design and functionality. -excellent x-ray tube positioning flexibility with patients on carts

Correct AnswerverifiedShow Answer

When using AEC at 80 kVp, backup times

Correct AnswerverifiedShow Answer

Match the following choices with regard to x-ray equipment design and functionality. -required for myelography procedures with the table tilted Trendelenburg

Correct AnswerverifiedShow Answer

When compared to single-phase electrical current, three-phase power

Correct AnswerverifiedShow Answer

What is the approximate rms voltage of a single-phase sine wave with a kVp of 75?

Correct AnswerverifiedShow Answer

The kVp control is found between the

Correct AnswerverifiedShow Answer

The electrical device used to adjust the mA selection is a/an

Correct AnswerverifiedShow Answer

Where is the stator of the anode induction motor located?

Correct AnswerverifiedShow Answer

Match the following choices with regard to x-ray equipment design and functionality. -used by orthodontists to assess the alignment of teeth and jaw disorders

Correct AnswerverifiedShow Answer

Match the terms related to a typical x-ray circuit with the correct statement or definition. -yields approximately 40% higher average energy per exposure

Correct AnswerverifiedD

The diagnostic x-ray range is approximately

Correct AnswerverifiedShow Answer

Radiographic rooms equipped with a tilting table are primarily designed for performing ____ procedures.

Correct AnswerverifiedShow Answer

At what point in the x-ray circuit is the rectification circuit located?

Correct AnswerverifiedShow Answer

Match the following choices with regard to x-ray equipment design and functionality. -X-ray tube and image receptor are fixed to opposite ends of an arc design.

Correct AnswerverifiedShow Answer

Present-day AEC technology utilizes

Correct AnswerverifiedShow Answer

The mA control is found between the

Correct AnswerverifiedShow Answer

Match the following choices with regard to x-ray equipment design and functionality. -inexpensive tube support design typically seen in small clinics

Correct AnswerverifiedShow Answer

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30.8 kW

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D

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