Radiography testing questions and answers pdf
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Radiology Interview Questions & Answers
The American Society for Nondestructive Tes. Views 2 Downloads 1 File size 2MB. ASNT is not responsible for the authenticity or accuracy of information herein.
Published opinions and statements do not necessarily reflect the opinion of ASNT. Products or services that are advertised or mentioned do not carry the endorsement or recommendation of ASNT. No part of this publication may be reproduced or transmitted in any form, by means electronic or mechanical including photocopying, recording or otherwise, without the expressed prior written permission of The American Society for Nondestructive Testing, Inc.
The following contributors assisted with the review of this book including updating old questions, writing new questions and updating references: Gary Alderson Gary E.
Light v Recommended References Radiographic Testing Method The following references were used in formulating the questions contained in this book. Iddings and G. Wheeler, tech. Moore, ed. Radiographic Testing Classroom Training Book. Radiography in Modern Industry, fourth edition. Latest edition. Reference numbers after the questions contain the standard number in them. Example: H. Although there may be other reasons for using calcium tungstate screens in industrial radiography, they are most often used to: 4.
An excellent radiograph is obtained under given conditions of exposure with the fUm located at a distance of If the film is now placed only If other conditions are not changed, what exposure time would be required if the X-ray tube current could be raised to 10 rnA? Ei 6. The penetrating ability of an X-ray beam is governed by: a. Co used in nondestructive testing emits: a. X-rays 24min 12 min 6 min 3 min A. As the kilovoltage applied to the X-ray tube is raised: a.
X-rays oflonger wavelength and more penetrating power are produced b. X-rays of shorter wavelength and more penetrating power are produced c. X-rays of shorter wavelength and less penetrating power are produced d.
X-rays oflonger wavelength and less penetrating power are produced Which of the following materials is suitable for use in containers used to mix processing soluti. Of the following, which would be especially sensitive to injury by excessive A. In order to increase the intensity of X-radiation: a. Film overexposure from X-ray radiography may be caused by: A.
Scattered radiation caused by any material, such as a wall or floor, on the film side of the specimen is referred to as: a. If a piece oflead Excessive exposure of film to light prior to development of the film will most likely result in: a. Reticulation resulting in a puckered or net-like film surface is probably caused by: a. One of the general rules concerning the application of geometric principles of shadow formation to radiography is: Frilling or loosening of the emulsion from the base of the film is most likely caused by: As a check on the adequacy of the radiographic technique, it is customary to place a standard test piece on the source side of the specimen.
This standard test piece is called: a. A fluoreScent intensifying screen will: The purpose of agitating an X-ray film during development is to: The three main steps in processing a radiograph are: A.
A fourth such exposure factor is: A. When the minute silver grains on which the X-ray film image is formed group together in relatively large masses, they produce a visual impression called: a. Water spots on films can be minimized by: a.
J-Sing a fresh fixer solution cascading water during the rinse cycle A. It is desired to increase the sharpness of detail in the image by increasing the source-to-film distance to mm 40 in. The correct milliamperage-1ninutes exposure to The small area in the X-ray tube from obtain the desired radiographic density at which the radiation emanates is called the increased distance is: the: a. The radiation quality of a gamma ray Very short wavelength electromagnetic radiation produced when electrons travelling at high speeds collide with source is: matter is called: a.
X-radiation b. The radiation intensity of a radioisotope: a. A curie is the equivalent of: 8. Assuming that a good radiograph is obtained at a setting of 10 rnA in 40 s, how much time would be necessary to A. A graph showing the relation between material thickness, kilovoltage and exposure is called: In order to achieve uniformity of development over the area of an X-ray film during manual processing: circulating pumps c. Short wavelength electromagnetic radiation produced during the A.
X- radiation gamma radiation scatter radiation backscatter radiation Such a device is called a: a. A sheet oflead with an opening cut in the shape of the part to be radiographed may A photographic image recorded by the passage of X-rays or gamma rays through a specimen onto a film is called a n : E.
Two X-ray machines operating at the a. Fluoroscopy differs from radiography in that: a. An advantage of the pocket dosimeter type of ionization chamber used to monitor radiation received by personnel is: a. Lead screens in intimate contact with the film during exposure: a. The accidental movement of the specimen or film during exposure or the use of a focus-film distance that is too small will: a.
When producing radiographs, if the kilovoltage is increased, the: unsharpness radiographic contrast specific activity subject density A. What would the unshielded dosage rate be at 9 m 30ft? The lead symbol "B" is attached to the back of the film holder to determine: a. E94 A. Which has the shortest wavelength? Beta particles are: a. Ei neutrons electrons positrons protons The purpose of a dated decay curve is to: a.
Image quality indicators for are considered Group I Materials and do not need to have an identification notch. The velocity of all electromagnetic radiation is: B. Unexposed boxes of X-ray film should be stored: a. The cause for poor image definition could be: a. During manual film processing, the purpose of the stop bath is to: A thin metallic sheet brass, copper, lead, etc.
The primary parts of an atom are: a. X-rays and gamma rays travel in: A. The reason a shim is used in a radiographic setup is to: a. A large source size can be compensated for by: A. The density of a radiograph image refers to the: a. Gamma radiation and X-radiation interact with matter and may be absorbed by: a. To produce X-rays, electrons are accelerated to a high velocity by an electrical field and then suddenly stopped by a collision with a solid body.
This body is called a: a. X-rays, gamma rays and alpha particles all have one thing in common; they are all: a. The term used to describe the loss of excess energy by the nucleus of radioactive atoms is called: The term used to express the number of curies of radioactivity per gram or ou.
In X-radiography, the ability to penetrate the test object is governed by: a. Which of the following types of radiation is emitted by Co and used in nondestructive testing? Low voltage X-ray tubes are generally fitted with windows made of: a. A Co gamma ray source has an approximate practical thickness limit of: The projected area of the target of an X-ray tube is called: A.
The absorption of gamma rays from a given source when passing through matter depends on the: E. Young's modulus value of the matter c. Poisson's ratio value of the matter d. The fact that gases, when bombarded by radiation, ionize and become electrical conductors makes them useful in: A.
If it were necessary to radiograph an Co b. Tm c.
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Preparing for the Radiography Certification exam? Bushong Bushong, Stewart C. Mosby, VitalBook file. The LET refers to the linear energy transfer, the amount of energy transferred by ionizing radiation per unit length of tissue traveled. LET is variable between radiation types. High-ionization radiation, including neutrons and alpha particles, cause more biological damage than radiation with a lower LET, including x-rays and gamma rays.
Have you ever had a fracture and needed to get an X-ray? What do you know about the study? May have a cumulative effect which must be considered when monitoring for maximum permissible dose. Directly by personnel equipped with special protective clothing with speciar protective clothing. There will be a tendency for each area of the film to affect the development of the areas immediately below it.
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Acces PDF Dental Radiography Questions Answers Radiology Test Oral Radiology Examination Practice Test! radiography level 1 and 2 ndt.
Rt Level 1 2 q a With Answers
Do you have medicine degree? Pursuing specialization in Radiology? Are you a person who has strong desire to become radiologist? Then log onto www. Radiology is a science that uses medical imaging to diagnose and sometimes also treat diseases within the body.
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Skin injuries are a result of the dose to the skin. Dose represents the energy deposited per gram of tissue, which can also be measured as Kerma kinetic energy released in matter. Kerma in air can be converted to dose in soft tissue using numerical constants.
Multiple-choice exams are used frequently in medical education. They are reliable and allow for rapid marking and immediate feedback for students. The three basic levels of learning are knowledge, combined comprehension and application, and problem solving.
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The American Society for Nondestructive Tes. Views 2 Downloads 1 File size 2MB. ASNT is not responsible for the authenticity or accuracy of information herein. Published opinions and statements do not necessarily reflect the opinion of ASNT. Products or services that are advertised or mentioned do not carry the endorsement or recommendation of ASNT. No part of this publication may be reproduced or transmitted in any form, by means electronic or mechanical including photocopying, recording or otherwise, without the expressed prior written permission of The American Society for Nondestructive Testing, Inc.
Powered by mwForum 2. Not logged in American Welding Society Forum. By travishttn Date I need anyone that can check my answers and if its wrong explain. Which of the following is an advantage of using an x-ray machine rather than a gamma ray source? Greater penetrating power b. Greater portability c.
Test your Dental Radiograph Knowledge! Phosphor plate receptors have greater latitude than traditional film and solid-state rigid-wired or wireless sensors. Latitude refers to the ability to capture a diagnostic image with a range of exposures. Advantages of phosphor plate receptors over solid-state sensors and traditional film are their flexible construction, greater active area of exposure, and lower retake frequency. These advantages help reduce exposure-related retakes. Disadvantages of phosphor plate receptors include the risk of creasing or scratching which can result in image artifacts and the need for replacement.