Examen
RADIATION SAFETY STATE TEST (LA) QUESTIONS WITH CORRECT ANSWERS
- Cours
- Établissement
RADIATION SAFETY STATE TEST (LA) QUESTIONS WITH CORRECT ANSWERS
[Montrer plus]
Vendeur
S'abonner
biggdreamer
Avis reçus
Aperçu du contenu
RADIATION SAFETY STATE TEST (LA)QUESTIONS WITH CORRECT ANSWERS
A person is standing in an area where they are exposed to 25 mrem during a 40 second
shot with a tube setting of 10 mA. If the milliamperage were changed to 5 mA with the
same exposure time, what would the person's new exposure be? - Answer-12.5 rem
At the completion of an X-ray exposure and turning the system to stand by: - Answer-
you must survey the tube assembly 360 degrees
An X-ray cabinet must comply with unrestricted area requirements. The maximum
amount of radiation emitted from the cabinet at 1.97 inches shall not exceed: - Answer-
0.5 mR/hr
The output equivalent to curies with an X-ray tube is controlled by the: - Answer-
Amperage rheostat
The parts of the Louisiana Administrative Code that pertain directly to radiographic are
chapters: - Answer-4,5, & 10
The storage vault cannot have more than which of the following readings at any external
surface? - Answer-2mR/hr
A radiographic was exposed to a dose of 100 Mr/hr for 30 minutes. What was the dose?
- Answer-50 mrem
Radiation arising directly from the target of an X-ray tube or an accelerator, or from a
radioactive source, is usually referred to as: - Answer-Primary Radiation
In accordance with DOT regulation, radioactive materials are classified into which two
categories? - Answer-Normal and Special form
The maximum radiation intensity level at the surface of a package with a Radioactive
Yellow III shipping label is: - Answer-200 mR/hr
Van De Graaff generators obtain their electrons through: - Answer-Electrostatic principle
In most cases, the standard anode material is: - Answer-Tungsten
The high-vacuum envelope is used to: - Answer-All of them
X-radiation is produced when a supply of: - Answer-High-speed electrons are
introduced from the cathode and strike the anode within a vacuum- sealed envelope.
,Increasing _______________across the filament expends more free electrons, thereby
increasing the numbers of free electrons able to across and strike the anode target
creating more X-radiation - Answer-Milliamperes
The structure known as the cathode serves as the ___________________source. -
Answer-Electron
Most of the energy used in producing X-ray converts to: - Answer-Heat
In most tubes______________________ is used as an exit port for the x-radiation
energy. - Answer-Beryllium
Raising the kilovolts on the control panel affects the: - Answer-Penetrating capabilities
of the X-ray produced.
Sources which have been double encapsulated to prevent the release of radioactive
material are called__________________. - Answer-Special Form
The reading for the Transport Index of a shipping container should be taken how far
from the surface? - Answer-1 Meter
The RQ label placed on a transport package identifies radioactive material package as:
- Answer-Reportable Quality
A radiographic exposure device that has a radiation level of 35 mR/hr at the surface and
less than 1 mR/hr at one meter should be labeled as: - Answer-Yellow II
Upon receiving a 100 curie Ir-192 source, you note that the reading at the surface of the
exposure device is 65 mR/hr and the Transport Index is 1. What label would you need
to affix to the exposure device? - Answer-Yellow III
What is the radiation intensity at 15 feet from a 30 curie Co-60 source while using a 4
HVL collimator?(Emissivity for Co-60 is 14 R/h/c@1') - Answer-116 mR/hr
If the intensity 20 feet from Iridium 192 source is 30 mR/hr, what is the activity of the
source? (Emissivity for Ir-192 is 5.2 R/h/c @1') - Answer-2.3 Curies
What dose would a person receive standing 50 feet from a 35 curie Iridium 192 source
during a 35 minute exposure? - Answer-42 mR
At what distance would you receive an exposure of 2 millirems if using a 90 curie Iridium
192 source with a 4 half- value layer collimator during a 10 minute shot? (Emissivity for
Ir-192 is 5.2 R/h/c @1)' (one foot). - Answer-49 feet
, You are working 15 feet away from a radioactive source and your survey meter reads
75mR/hr. How far away from the source would you have to be for your survey meter to
read 2 mR/hr? - Answer-92 feet
20 feet from the source, your survey meter reads 50mR/hr. How far do you need to be
from the source to achieve a 2mR/hr dose rate? - Answer-100 feet
You're receiving 177 mR/hr during a 4 minute exposure. What would your pocket
dosimeter read? - Answer-12 mR
If you used 1" of lead as shielding, with a cobalt-60 source, how much of the original
intensity of the beam would remain? (HVL for lead with Co-60 is.49") - Answer-1/4
A source of Ir-192 has an activity of 20 curies today. What will be its activity at the end
of 5 months? (Half- life of Ir-192=75 days or 2 1⁄2 months). - Answer-5 Curies
How long would it takes for a 10 curies Co-60 source to decay to 2- 1⁄2 curies? (Half-life
for Co-60 is 5.3 years) - Answer-10.6 Years
When must a vehicle be placarded? - Answer-When transporting Radioactive Yellow III
material
Any state with which the U.S Nuclear regulatory commission or the U.S. Atomic energy
commission has entered into an effective agreement is called a
(n)__________________. - Answer-Agreement State
How often should field audits for performance be performed on radiographers? -
Answer-At least every 6 months
What is the annual occupational dose limit for adult working radioactive material? -
Answer-5 REM
How often must leak tests be performed to detect leakage and contamination of source
material? - Answer-Every 6 months
Radioactive source are never to be stored____________________. - Answer-In a
residential area
Which of the following condition would not constitute a radiation emergency requiring
notification to the RSO? - Answer-A dose in one hour of 20 mrem to certified
radiographer
A collimator should be used, at all times, while performing radiography at a temporary
job site except when: - Answer-Physically impossible to do so
Les avantages d'acheter des résumés chez Stuvia:
Qualité garantie par les avis des clients
Les clients de Stuvia ont évalués plus de 700 000 résumés. C'est comme ça que vous savez que vous achetez les meilleurs documents.
L’achat facile et rapide
Vous pouvez payer rapidement avec iDeal, carte de crédit ou Stuvia-crédit pour les résumés. Il n'y a pas d'adhésion nécessaire.
Focus sur l’essentiel
Vos camarades écrivent eux-mêmes les notes d’étude, c’est pourquoi les documents sont toujours fiables et à jour. Cela garantit que vous arrivez rapidement au coeur du matériel.
Foire aux questions
Qu'est-ce que j'obtiens en achetant ce document ?
Vous obtenez un PDF, disponible immédiatement après votre achat. Le document acheté est accessible à tout moment, n'importe où et indéfiniment via votre profil.
Garantie de remboursement : comment ça marche ?
Notre garantie de satisfaction garantit que vous trouverez toujours un document d'étude qui vous convient. Vous remplissez un formulaire et notre équipe du service client s'occupe du reste.
Auprès de qui est-ce que j'achète ce résumé ?
Stuvia est une place de marché. Alors, vous n'achetez donc pas ce document chez nous, mais auprès du vendeur biggdreamer. Stuvia facilite les paiements au vendeur.
Est-ce que j'aurai un abonnement?
Non, vous n'achetez ce résumé que pour €18,06. Vous n'êtes lié à rien après votre achat.
Peut-on faire confiance à Stuvia ?
4.6 étoiles sur Google & Trustpilot (+1000 avis)
75632 résumés ont été vendus ces 30 derniers jours
Fondée en 2010, la référence pour acheter des résumés depuis déjà 14 ans