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1) The wavelength of the x-ray photons is determined by

One answer only.

   Kilovoltage

   Milliamperage

   Amount of heat supplied to the filament

   Quantity of the electrons in the cathode streams

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2) Sharpness of the radiographic image is increased by

One answer only.

   Decreasing filtration

   Increasing focal spot-object distance

   Decreasing Milliamperage

   Increasing object film distance

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3) The purpose of a step-up transformer in an x-ray machine is to increase the

One answer only.

   Heat to the filament

   Wavelength of the x-rays

   Voltage to the tube?s filament circuit

   Voltage to the tube?s anode-cathode circuit

   Milliamperage of the x-ray machine

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4) The quality of the x-ray beam can be described by stating the

One answer only.

   KV & MA

   MA & half value layer

   Exposure time & KV

   Half value layer & MA

   KV& half value layer

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5) The intensity of x-radiation at any given distance from the source of radiation varies

One answer only.

   Inversely with the square of the distance

   Directly with the square of the distance

   Inversely with kVp

   Directly with kVp

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6) Intensifying screens are used in radiology in order to

One answer only.

   Increase sharpness

   Decrease exposure time

   Improve image detail

   Increase the filtration

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7) To increase the penetrative quality of an x-ray beam the operator should increase

One answer only.

   Exposure time

   Kilovoltage

   Milliamperage

   Collimation

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8) All of the following anatomical landmarks on the maxilla appear radiolucent except

One answer only.

   Sinus

   Lateral fossa

   Zygoma

   Median maxillary suture

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9) All of the following anatomical landmarks on the mandible appear Radiopaque except

One answer only.

   Genial tubercules

   Mylohyoid ridge

   Submandibular fossa

   External oblique ridge

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10) Which of the following is not an exposure factor that can be varied in intraoral radiography

One answer only.

   KVp

   MA

   Exposure time

   Intensifying screens