NMSU Radiation Safety Refresher Exam 

Instructions:  To receive credit for fulfilling the annual radiation safety refresher training requirement, print & complete the following exam. Then send the signed exam via campus mail to Rad Safety, MSC 3578 or scan the signed exam and e-mail to David Schoep (dschoep@nmsu.edu), Radiation Safety Manager.  Your test score will be e-mailed to you and the permit holder.  To pass the exam you must score 80% or higher.  This is an “open-book” exam meaning you can use any reference materials you choose including the NMSU Radiation Safety Manual.

Your Name: _______________________________________________________     E-mail_____________________________________________

(Last name, First name) [Print legibly]                

 Signature                                            _________________________________     Date__________________________________________


        1.       The acronym ALARA describes a fundamental principle in radiation protection and stands for:

a.        As Long As Required To Achieve

b.       As Low As Reasonably Achievable

c.        As Low As Radioactively Available

d.       As Long As Radio Active


2.       The annual regulatory dose limit to the “whole-body” of a radiation worker in New Mexico is:

a.        1 mrem

b.       10 mrem

c.        5 rem

d.       50 rem


3.       A unit that describes the amount of radioactive material is:

a.        mCi

b.       mrem

c.        keV

d.       rad


4.       A good portable laboratory radiation survey meter that can be used by a worker to detect beta/gamma contamination on their hands or shoes is:

a.        High-Purity Germanium Detector (HPGe)

b.       Liquid Scintillation Counter (LSC)

c.        Geiger-Mueller Meter (GM)

d.       Alpha Spectrometer

5.       The RSO must pre-approve all radioactive material orders coming to NMSU

a.        True

b.       False


6.       A unit used to describe dose rate is:

a.        dpm/hr

b.       mCi/hr

c.        MBq/hr

d.       mrem/hr


7.       External whole-body dosimeters should be worn on the front of the outer-most layer of clothing between the neck and waist.

a.        True

b.       False


8.       Name 3 types of ionizing radiation 1____________________ 2____________________ 3____________________


9.       When radioactive material is ordered the vendor should be directed to send the package to:

a.        Permit Holder’s Primary Lab

b.       NMSU Environmental Health & Safety Department (EH&S)

c.        Corbett Center

d.       Physical Science Lab (PSL)


10.    Three primary methods a worker can use to minimize their external exposure from a source of ionizing radiation are 1._______________________, 2.______________________ and 3.________________________.


11.    The document that describes the rules, procedures and guidelines for using radioactive material & radiation producing machines at NMSU is the ____________________   ____________________ manual.


12.    The primary purpose of signage and posting of radiological work areas is to:

a. prevent workers from entering radiological areas

b. inform workers of the radiological conditions and dangers

c. allow EHS Radiation Safety personnel to measure the dose

d. eliminate all occupational doses at NMSU


13.    To order, ship or transfer radioactive material at NMSU requires prior approval from the NMSU Radiation Safety.

a.        True

b.       False


14.    Radiation survey meters must be calibrated annually by a qualified vendor if they are used to perform contamination surveys

a.        True

b.       False


15.    The type of radiation that poses the greatest risk internally (ingested, inhaled, absorbed or injected) is:

a.        Alpha radiation

b.       Beta radiation

c.        Gamma radiation


16.    The primary goal of the Pregnant Worker Policy is to protect who from the potentially harmful effects of exposure to ionizing radiation?

a.        Mother

b.       Developing fetus


17.    Documentation of the use and disposal of all radioactive material must be  maintained by the Permit Holder until relinquished to Radiation Safety

a.        True

b.       False


18.    Basic Radiation Safety class training and annual radiation refresher safety training is required for all workers using unencapsulated radioactive material

a.        True

b.       False


19.    The annual administrative control dose limit to the “whole-body” of a radiation worker at NMSU is:

a.        1 mrem

b.       10 mrem

c.        500 mrem

d.       5 rem


20.    The most penetrating type of ionizing radiation is:

a.        Alpha radiation

b.       Beta radiation

c.        Gamma radiation