Compre (Resto, Ortho, Roent) > Roent Compre > Flashcards

Roent Compre Flashcards

(41 cards)

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1
Q
  1. Filter is usually located in the end of the ___ which attaches to the tube head.
    A. Collimator
    B. Cathode
    C. Cone
    D. Anode
A

C. Cone

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2
Q
  1. These include the class wall of Xray tube, insulating oil and the metal housing
    A. Added Filter
    B. Inherent Filter
    C. Imminent Filter
    D. Total Filter
A

B. Inherent Filter

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3
Q
  1. Filters that can be removed and extended
    A. Added Filter
    B. Inherent filter
    C. Imminent filter
    D. Total Filter
A

A. Added Filter

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4
Q
  1. The thickness of filters varies according to the__ of the machine
    A. mAp
    B. Ram
    C. Kip
    D. Rem
A
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5
Q
  1. Device used to limit or restrict the size of an X-ray beam just to cover the film to produce desired image
    A. Filter
    B. Collimator
    C. Cone
    D. Transformer
A

B. Collimator

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6
Q
  1. Help in decrease diverging rays and almost increase more parallel rays which help increase quality of image
    A. Diaphragm
    B. Rectangular
    C. Tubular
    D. Triangular
A

C. Tubular

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7
Q
  1. A thin sheet of lead with an opening at the center
    A. Diaphragm
    B. Rectangular
    C. Tubular
    D. Triangular
A

A. Diaphragm

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8
Q
  1. Provides a beam larger than the periapical film
    A. Diaphragm
    B. Rectangular
    C. Tubular
    D. Triangular
A

B. Rectangular

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9
Q
  1. Maximum diameter of circular beam at PID
    A. 5 cm
    B. 7 cm
    C. 3 cm
    D. 10 cm
A

B. 7 cm

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10
Q
  1. Majorty of PID are made up of
    A. Metal
    B. Plastic
    C. Glass
    D. Silicone
A

B. Plastic

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11
Q
  1. PID which has more harmful effects that it acts as a source of scattered radiation as the ravs will hit its walls
    A. Open end
    B. Constricted end
    C. Pointed End
    D. The End
A

B. Constricted end

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12
Q
  1. Short PID measures at
    A. 5”
    B. 8”
    C. 10”
    D. 12”
A

B. 8”

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13
Q
  1. Long PID measures at
    A. 14”
    B. 16”
    C. 15”
    D. 18”
A

B. 16”

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14
Q
  1. It is that part of the primary radiation which is not absorbed by the housing but passes through the apparatus and affects the film
    A. Secondary radiation
    B. Useful beam
    C. Central ray
    D. Scattered Radiation
A

B. Useful beam

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15
Q
  1. It is the Radiation coming directly out of the target, most of it is absorbed by the tube housing
    A. Primary Radiation
    B. Stray Radiation
    C. Secondary Radiation
    D. Scattered Radiation
A

A. Primary Radiation

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16
Q
  1. It is that part occupying the central portion of the useful beam on which they rays are parallel to each other
    A. Secondary Radiation
    B. Useful Beam
    C. Central Ray
    D. Scattered Radiation
A

C. Central Ray

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17
Q
  1. Radiation generated from the patient’s surroundings, due to passage and interaction of the primary beam with these objects
    A. Primary Radiation
    B. Stray Radiation
    C. Secondary Radiation
    D. Scattered Radiation
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A

C. Secondary Radiation

18
Q
  1. They are of long wavelength and so increased absorption are more dangerous to the patient
    A. Primary Radiation
    B. Stray Radiation
    C. Secondary Radiation
    D. Scattered Radiation
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A

C. Secondary Radiation

19
Q
  1. A form of secondary radiation which have been deviated in direction during passage of Xrays through objects
    A. Primary Radiation
    B. Stray Radiation
    C. Secondary Radiation
    D. Scattered Radiation
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A

D. Scattered Radiation

20
Q
  1. The radiation that escapes through the protective housing of the X Ray tube
    A. Stray
    B. Leakage
    C. Remnant
    D. Scattered
21
Q
  1. Radiation that occurs when primary beam hits a metal heavier than aluminum
    A. Stray
    C. Remnanti
    B. Leakage
    D. Scattered
22
Q
  1. Radiation emerging from the object remains after passage of primary beam through it
    A. Stray
    B. Leakage
    C. Remnant
    D. Scattered
23
Q
  1. Produced by increased kilo-voltage, shorter wavelength, increased energy, increased penetration, decreased absorption and are the ones used to produce image
    A. Hard Radiation
    B. Primary Radiation
    C. Soft Radiation
    D. Secondary Radiation
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A

A. Hard Radiation

24
Q
  1. Radiation produce by decrease kilovoltage, are of longer wavelength, decrease penetration, increased absorption and have a more damaging effect
    A. Hard Radiation
    B. Primary Radiation
    C. Soft Radiation
    D. Secondary Radiation
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A

C. Soft Radiation

25
25. Resemble structures produced by passage of X radiation; visible only after processing the film A. Contrast B. Density C. Image D. Exposure
C. Image
26
26. Degree of darkening of exposed and processed x-ray film; expressed as the logarithm of the opacity of a given area of a film A. Contrast B. Density C. Image D. Exposure
B. Density
27
27. Differentiation between black, gray and white shades on the radiograph A. Contrast B. Density C. Image D. Exposure
A. Contrast
28
28. A measure of X radiation to which an object bare produced ionization A. Contrast B. Density C. Image D. Exposure
D. Exposure
29
29. The unit of biological damaging effect of radiation: amount of lonizing radiation that produces damaging effect in one gram of tissue A. RAM B. REM C. RIM D. ROM
B. REM
30
30. The unit of absorbed dose of lonizing radiation by one gram of tissue A. RAD B. REM C. RID D. ROD
A. RAD
31
31. Kilo-voltage potential of conventional Xray machine ranges from A. 50-80 B. 80-100 C. 65-90 D. 100-150
C. 65-90
32
31. Kilo-voltage potential of conventional Xray machine ranges from A. 50-80 B. 80-100 C. 65-90 D. 100-150
C. 65-90
33
32. Determines the quality of the Xray beam A. mA B. Ampere C. kvp D. Decibel
C. kvp
34
33. With extremely high kvp, penetration power increases, resulting in a nearly complete penetration of objects finally__ the film A. Whitening B. Reddening C. Bluing D. Blackening
D. Blackening
35
34. Graying of supposed to be opaque images by Long gray scale image result is because of A. High contrast B. Low Kvp C. Low contrast D. Low mA
A. High contrast
36
35. Affect quantity of Xray A. mA B. Ampere C. kvp D. Decibel
A. mA
37
36. Controlling mA, control the __ of the image A. Contrast B. Sharpness C. Density D. Brightness
C. Density
38
37. Normal Range of mA in a periapical xray machine A. 1-3 B. 10-15 C. 5-15 D. 20-30
C. 5-15
39
38. The higher it is, result will increase heating of coil, electron emitted and number of Xray photons A. mA B. Ampere C. kvp D. Decibel
A. mA
40
39. Most important constitute of the film A. Film Base B. Film Emulsion C. Adhesive Layer D. Protective Layer
B. Film Emulsion
41
40. Part of periapical film that is transparent and has a slight blue tint to make visualization of image A. Film base B. Film emulsion C. Adhesive Layer D. Protective layer
A. Film base
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