Exam (elaborations)
ASNT Industrial Radiography Radiation Safety Questions And Answers 100% Correct
- Course
- Institution
ASNT Industrial Radiography Radiation Safety Questions And Answers 100% Correct
[Show more]
Content preview
ASNT Industrial Radiography Radiation Safety Questions And Answers 100% Correct In the early years of radiography, what caused personnel to be overexposed? - Poor equipment design, lack of understanding, lack of and poor safety practices. In what year did Marie Curie discover radium? - Late 1898 Who coined the term radioactivity? - Marie and Pierre Curie In the early years of radiography from 1920 -1930, the maximum thickness that could be inspected via X-radiation was of steel? - 3" (7.62 cm) Historically, it has been proven that the predominant cause of overexposures is: - Improper surveys, the source being left in an uncontrolled state, the source not being locked once retracted to the shielded position The responsibility to adhere to the regulations, license conditions and company policies fal ls to: - The radiographer Alpha particles were discovered by: - Henri Becquerel The first medical X -ray was conducted at: - Massachusetts General Regulations from one state to the next are essentially the me for radioactive materials - True A radiograp her has several avenues to seek guidance and counsel. The first person he or she can turn to is? - their program's radiation safety officer (RSO) The origins of industrial radiography can be attributed to: - Wilhelm Rontgen The two basic types of radiati on are: - particulate and electromagnetic Wavelike radiation travels at: - at the speed of light without regard to pressure, temperature or magnetic fields Gamma rays travel in a wavelike motion at the speed of light, which is: - 186 000 miles/s (299 338 km/s) Matter can be turned into energy. - True Alpha particles are much like a helium nucleus as they have: - two protons, two neutrons and two electrons Beta particles have a/an: - Negative charge Alpha particles have a/an: - Positive charge Beta particles have a mass: - much less than that of an alpha particle In modern radiography the alpha and beta particles are of little concern because: - They travel at sub-light speeds and as such are easily ontained or shielded X-radiation is created by applying a: - high voltage direct current acros s the cathode of a vacuum tube X-rays are produced by an X -ray tube by the: - passage of electrons across the tube striking the target Radio waves, microwaves and infrared waves are types of: - Nonionizing radiation The neutron has an atomic mass of: - 1 AMU · The shorter the wavelength or higher the frequency, the greater the penetration; as such: - primary beams have greater penetrability than secondary beams Elementary particles with a unit negative electrical charge and a mass approximately equal to 1/1840 that of - Electrons The atomic weight of an atom is the combination of the total number of protons and neutrons held in the nucleus. This is also known as the: - "A" number Gamma rays are affected by magnetic fields. - False As a radioisotope decays, the elements return to a stab' state by undergoing several steps; once complete the material continues to produce radiation: - false After 148 days, Ir -192 would have undergone how m half lives? - 2 Activation is the process of bombarding material with: - excess neutrons The total number of _________ identifies an element. - protons Gamma radiation has a shorter wavelength than visible light, therefore mak ing it: - More penetrating Overexposures to personnel can result in: - cancer, genetic defects carried into further generations, and death All radiation exposures are equally serious and can result - False Ionizing radiation passes through the entire bo dy; as such, damage can occur to the: - skin, internal organs and musclesThe benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Boffin. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78600 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now