CODA Exam Questions With 100% Correct Answers

CODA Exam Questions With 100% Correct Answers When periapical dental film is placed in an oral cavity, a pebbly surface is - answerPlaced away from the radiation positioning device ?When a film shows brown spots it is because - answerThe film came into contact with the sides of the tank Exhausted developer will - answerProduce thin, faded image The use of a fast film - answerWill help prevent blurring Air bubbles cling to the surface of the film in the developer - answerShows up as a white blotch Filters are used in the x-ray beam to - answerRemove low energy x-ray photons Intensifying screens are used to - answerReduce exposure time A radiograph with a thin image is difficult to interpret and may be caused by - answerInaccurate timer Too short developing time Developing solution too cold Results of careless angulation of the X-ray tube are - answerCone off Over fixation causes - answerBleaching of the radiograph to a thin, shiny image Fog always causes - answerA loss of radiographic contrast For extraoral films you may process under a safe flight of - answer15 watt bulb , 4 feet from working space The primary cause of radiation damage is - answerIonization The most usual cause of light radiographs is - answerUsing low kilovoltage At 90 kVp and 15 mA, with a target film distance of 8 inches, the exposure time for a film is 1/2 second. Under the same situation exposure time at 16 inches is - answer1 second