State radio practice test

How must a shipping package containing radioactive materials be positioned in a company vehicle during transit?

A) In a manner to prevent immediate access

B) Blocked and brace to prevent shifting

C) Away from the sides of the vehicle

D) Away from film processing chemicals

B) Blocked and brace to prevent shifting

The process by which the direction of incident radiation is changed is called ______________.

A) Attenuation

B) Deflection

C) Reflection

D) Scatter

D) Scatter

Which of the following processes do x-rays and gamma rays lose their energy to atoms?

A) Compton scatter

B) Pair production

C) Photoelectric effect

D) All the above

D) All the above

Which of the following is not true about the performance requirements of industrial radiographic equipment?

A) The outlet fittings, lock box, and drive cable fittings on each radiographic exposure device must be equipped with safety plugs or covers which must be installed during storage and transportation to protect the source assembly from water, mud, sand or other foreign matter.

B) The coupling between the source assembly and the control cable must be designed in such a manner that the source assembly will not become disconnected if cranked outside the guide tube. The coupling must be such that it cannot be unintentionally disconnected under normal and reasonably foreseeable abnormal conditions.

C) The device must automatically secure the source assembly when it is cranked back into the fully shielded position within the device. This securing system may only be released by means of a deliberate operation on the

D) The exposure device must be able to with stand a drop from 220 feet on to a non-moveable surface.

D) The exposure device must be able to with stand a drop from 220 feet on to a non-moveable surface.

The half value layer thickness of lead for Co-60 is approximately 0.5 inch. If the radiation level on th source side of a 1.5 inch lead plate is 64 R/hr, the radiation level on the opposite side is:

A) 8 R/hr

B) 16 R/hr

C) 21 R/hr

D) 32 R/hr

A) 8 R/hr

What personnel monitoring devices are required, by regulations, to be worn by individuals performing the functions of radiographer or assistant radiographer/radiographer trainee during the operation of exposure devices?

A) Electronic pocket dosimeter

B) Survey meter

C) 0 - 100 milliroentgen range dosimeters

D) NAVLP approved dosimetry, pocket dosimeter and alarming rate meter

D) NAVLP approved dosimetry, pocket dosimeter and alarming rate meter

Return of a radioactive source to the fully shielded position by any means other than normal operation of the equipment is considered

A) Source retrieval

B) A job for the Assistant Radiographer/Radiographer Trainee

C) Unique radiographic technique

D) Standard operating practice

A) Source retrieval

What is the approximate dose a radiographer working 18 feet from a 60 Ci Ir-192 source during a 4 minute exposure?

A) 58.2 mR

B) 64.2 mR

C) 88.3 mR

D) 70.7 mR

B) 64.2 mR

Radiographic equipment exhibiting defects or malfunctions during the daily maintenance inspection shall be __________________.

A) Reported to the FRSO

B) Recorded on the survey report

C) Removed from service and tagged until repairs are made.

D) All the above

D) All the above

The highest dose rate at the surface of a package radioactive material is 25 mR/hr and the highest dose rate at 1 meter from the surface is 2.5 mR/hr. The proper radioactive warning label to apply on two opposite sides (excluding bottom) of the package would be:

A) A radioactive Yellow III label

B) A radioactive Yellow II label

C) A radioactive White I label

D) No label is required; the dose rate is too low

A) A radioactive Yellow III label

Radiography sources are:

A) Special form radioactive material

B) Provided for the general public

C) Safe radioactive material

D) Normal form radioactive material

A) Special form radioactive material

A source has a radiation intensity of 5 R/hr at 3 feet. What is the intensity at 20 feet from the source?

A) 1.25 R/hr

B) 11.25 mR/hr

C) 112.5 mR/hr

D) 11.25 mR/hr

C) 112.5 mR/hr

Exposure devices may be temporarily stored at job sites provided:

A) The area is properly posted, site management is notified, and the radiographer maintains control of the keys.

B) The device is locked and secured to prevent use or removal by unauthorized personnel.

C) The device is placed and locked in an enclosure or room and radiation levels are maintained at the outside perimeter of the storage area.

D) All of the above

D) All of the above

The radiation rate in your work area is 750 mR/hr. Your task will keep you in the area for 5 minutes. What would be your estimated exposure?

A) 15 mR

B) 62.5 mR

C) 0.100 R

D) 0.150 R

B) 62.5 mR

When a sealed source is leak tested, what is the maximum allowable removable activity?

A) < 0.01 microcuries

B) < 0.001 microcuries

C) < 0.0005 microcuries

D) < 0.005 microcuries

D) < 0.005 microcuries

Survey instruments measure:

A) Dose rate

B) Exposure period

C) Exposure time

D) Dose

A) Dose rate

What reading is indicated on the survey meter illustrated below? [Scale reads 0-10, multiplier at x100, selector switch at OFF]

A) 10 mR/hr

B) 0 mR/hr

C) Meter off

D) Low battery

C) Meter off

Any radiation that directly or indirectly displaces electrons from the original shell of atoms is called ____ radiation.

A) Low level

B) Electrostatic

C) Ionizing

D) Non-ionizing

C) Ionizing

Alpha particles have:

A) A net charge of +2

B) A net charge of -1

C) No charge

D) A net charge of -2

A) A net charge of +2

Daily inspection of exposure equipment:

A) Isn't really necessary, only required each quarter.

B) Is recommended by the manufacturer but not required

C) Must be done each day prior to performing radiography

D) Is required at the beginning and end of radiographic operations.

C) Must be done each day prior to performing radiography

Which document takes precedence in the event the Company Operating and Emergency Procedures and the applicable regulations conflict?

A) The most stringent of the two

B) The regulations

C) Neither of the two

D) The Operating and Emergency Procedures

A) The most stringent of the two

Guide tubes are primarily used to:

A) Provide a means for which the source may be transitioned from and to a shield position.

B) Secure the collimator for exposure control.

C) Protecting the encapsulated sealed source.

D) Added shielding for the radiography crew.

A) Provide a means for which the source may be transitioned from and to a shield position.

What reading is indicated on the survey meter illustrated below? [Needle points to 5, multiplier set to x100]

A) 500 mR

B) 50 mR/hr

C) 500 mR/hr

D) 5 mR/hr

C) 500 mR/hr

What is the maximum radiation level permitted during a survey of an exposure device:

A) 200 mR/hr at 2 inches from the surface

B) 50 mR/hr at the surface

C) 200 mR/hr at the surface

D) 10 mR/hr at 1 meter from the surface

C) 200 mR/hr at the surface

Your survey instrument is reading 130 mR/hr at 1 foot. How much distance is needed to achieve a 2 mR/hr dose rate?

A) 8 ft

B) 16 ft

C) 10 ft

D) 11 ft

A) 8 ft

You are using an exposure device licensed for a maximum of 100 curies Iridium 192. What is the maximum activity that may be placed in the device provided no more than 100 curies was ordered?

A) 132 curies

B) 120 curies

C) 110 curies

D) 100 curies

C) 110 curies

Which of the following are required during radiographic operations?

A) Direct surveillance of the high radiation area

B) Maintaining control of the restricted area

C) Posting the area

D) All of the above

D) All of the above

Which of the following represent possible results of nuclear disintegrations?

A) Gamma radiation

B) Alpha particle radiation

C) Beta particle radiation

D) All of the above

D) All of the above

The maximum exposure rate limits for storage containers and source changers are __________ per hour at any exterior surface, and ______ per hour at 1 meter from any exterior surface with the sealed source in the shielded position.

A) 10 mR/hr and 1 mR/hr

B) 10 mR/hr and 0.1 mR/hr

C) 100 mR/hr and 1 mR/hr

D) 200 mR/hr and 10 mR/hr

D) 200 mR/hr and 10 mR/hr

Where shall the shipping papers be placed when the vehicle contains a radioactive material package and you are not at the controls?

A) Glove compartment

B) Driver's seat

C) Holder mounted on the inside of the driver's door

D) b and c

D) b and c

What is the preset dose rate to activate the alarm on an alarming ratemeter?

A) 500 R/hr

B) 100 mR/hr

C) 100 mR/hr

D) 500 mR/hr

D) 500 mR/hr

What is the unit of measurement for the effect of any type of radiation on man that is equivalent to the effect of one roentgen of gamma radiation to man?

A) RAD

B) Curie

C) Roentgen

D) REM

D) REM

Before working with a radioactive source, you must have which of the following with you:

A) Operating and Emergency Procedures

B) Current radiation safety certification

C) Self-reading pocket dosimeter, survey meter, alarming rate meter and NAVLP approved dosimeter

D) All of the above

D) All of the above

The requirements for placarding a vehicle used for transport of sealed sources is determined by __________________.

A) Location of the shipping container within the vehicle

B) Transportation index

C) Location of the radioactive source

D) Type of shipping container

B) Transportation index

If you arrive at a jobsite and find that your survey instrument is not operating properly, what should you do?

A) Get a properly operating survey instrument.

B) Send an assistant to obtain a new instrument while you complete the first exposure.

C) Use past experience to judge where the restricted area boundary should be and complete the job.

D) Complete the job quickly while keeping close check on your pocket dosimeter.

A) Get a properly operating survey instrument.

________________ must be requested if proposed work extends beyond the territorial jurisdiction of the license issued to you location.

A) Reciprocity

B) Assistance

C) Nothing

D) Certification

A) Reciprocity

When performing radiography the ____________ and ______________ area must be posted.

A) Hallway and doorway

B) Restricted and unrestricted

C) Radiation and high radiation

D) None of the above

C) Radiation and high radiation

How many half-value layers would be required to reduce 4 R/hr to a value of approximately 2 mR/hr?

A) 16

B) 18

C) 11

D) 9

C) 11

Alpha particles consist of:

A) Two electrons and two neutrons

B) Two protons and two neutrons

C) Two protons

D) Two protons and two electrons

B) Two protons and two neutrons

The cells of the human body have varying degrees of radiosensitivity. The ________ cells are the most sensitive to radiation.

A) Gastro-intestinal

B) White blood

C) Red blood

D) All the above

B) White blood

Any area accessible to personnel in which there exists radiation levels such that a major portion of the body could receive a dose in excess of 100 millirem in any one hour is defined as a ________ ?

A) Restricted area

B) High radiation area

C) Radiation area

D) None of the above

B) High radiation area

How is time related to accumulated dose?

A) Accumulated dose is directly proportional to time

B) Accumulated dose is inversely proportional to time

C) They are not related

D) No relation at all

A) Accumulated dose is directly proportional to time

You note that your pocket dosimeter has picked up 3 mR after 5 minutes. What would your exposure be after 1 hour?

A) 36 millirem

B) 1.5 millirem

C) 20 millirem

D) 12 millirem

A) 36 millirem

When is it permitted to leave an exposure device without maintaining constant surveillance and not in storage?

A) When the device is chained to prevent unauthorized removal

B) Never

C) When you momentarily do darkroom work

D) During field radiography

B) Never

Permanent radiographic installations (exposure cells) using gamma radiographic equipment must be equipped with what type of functioning alarm system?

A) Visible alarms actuated when the source is exposed

B) Audible alarms actuated when an attempt is made to enter the high radiation area

C) None of the above

D) a and b

D) a and b

You are using a 55 curie Iridium 192 source. What is the dose rate at 67 feet from the source? (Note: Emissivity is 5.2 R/hr/curie @ 1 foot)

A) 88 mR/hr

B) 72 mR/hr

C) 155 mR/hr

D) 64 mR/hr

D) 64 mR/hr

What is the limit on the number of guide tube extensions that can be attached to an exposure device? (This is not considering O&E or regulatory requirements - only physical limitations)

A) 8

B) 4

C) 2

D) The number of guide tubes is limited by the length of the control cable.

D) The number of guide tubes is limited by the length of the control cable.

Exposure devices and related equipment exhibiting manufacturer's defects that could result in increased risk to users or the general public shall be immediately reported to the __________________ and ______________________.

A) Manager and QC monitor

B) Company President and Vice President

C) Reporting of manufacturers defects is not required

D) Manufacturer and Corporate RSO/FRSO

D) Manufacturer and Corporate RSO/FRSO

What is the maximum radiation level allowed on the exterior surface of Team authorized vehicles?

A) 5 mR/hr

B) 10 mR/hr

C) 1 mR/hr

D) 2 mR/hr

D) 2 mR/hr

Personnel dosimetry badges must be issued and returned monthly. Teams goal for return is within how many days after the end of the wear period?

A) 10 days or as required by jurisdictional requirements.

B) 14 days or as required by jurisdictional requirements.

C) 60 days or as required by jurisdictional requirements.

D) 30 days or as required by jurisdictional requirements.

B) 14 days or as required by jurisdictional requirements.

How often must you receive refresher HAZMAT training?

A) Al least every 3 years

B) Refresher training is not required

C) At least every two years

D) Once each year

A) Al least every 3 years

When must you inspect the exposure cell alarm system(s) for proper operation?

A) Semi-annually

B) Daily

C) Monthly

D) Prior to each scheduled use

D) Prior to each scheduled use

Any radioactive material (except special nuclear material) yielded in or made radioactive by exposure to the radiation incident to the process of producing or utilizing special nuclear material is called __________ ?

A) By product material

B) Natural occurring radioactive material

C) Low level waste

D) Fissionable material

A) By product material

The quantity of x or gamma radiation which will produce, by means of ionization, one electrostatic unit (esu) of charge in one cubic centimeter of dry air at standard temperature and pressure is ______________ ?

A) Curie

B) Millicurie

C) Roentgen

D) None of the above

C) Roentgen

Which of the following is produced by radioactive decay?

A) Light rays

B) Gamma rays

C) Beta rays

D) X-rays

B) Gamma rays

The maximum permissible dose for individual members of the public (unrestricted areas) shall not exceed ________ millirem in any one hour and ______ millirem in a year.

A) 5 and 100

B) 2 and 100

C) 2 and 500

D) 5 and 200

B) 2 and 100

Gamma radiation consists of:

A) Energy that emits radiation ranging from 2 to 50 MeV.

B) Particles similar to high speed electrons.

C) Particles that can be stopped by a half-value layer thickness of steel.

D) Short wavelength, high frequency electromagnetic waves.

D) Short wavelength, high frequency electromagnetic waves.

The radiation intensity from a gamma source is 50 mR/hr at a distance of 1 foot. How far away from the source must you be to receive 2 mR/hr?

A) 5 feet

B) 50 feet

C) 2.5 feet

D) 25 feet

A) 5 feet

Assuming the same thickness of each material is being used, which provides the best shielding?

A) Wood

B) Steel

C) Water

D) Concrete

B) Steel

During the daily maintenance inspection of an exposure device, the ________________ must be inspected to assure the equipment is in proper working order.

A) Labels, tags and source tubes and source tips

B) Lock, drive cable, handle, source connector

C) Drive cable connections, crank handle

D) All of the above

D) All of the above

What reading is indicated on the survey meter illustrated below? [Needle points to 5, multiplier set to x1]

A) 5 mR

B) 50 mR/hr

C) 5 mR/hr

D) Low battery

D) Low battery

One roentgen is equal to:

A) 10,000 milliroentgen

B) 1,000,000 milliroentgen

C) 10 milliroentgen

D) 1,000 milliroentgen

D) 1,000 milliroentgen

The activity of a radioactive source can be expressed in what units?

A) Amu's

B) Rem's

C) Millicuries

D) All of the above

C) Millicuries

Assuming that you are working within the NRC's jurisdiction, which of the following should be posted?

A) The license

B) Notice to Employee's

C) Operating and Emergency Procedures

D) All of the above

D) All of the above

Column 4 of the Hazardous Material Table lists the ________ assigned to the hazardous material.

A) Packing group

B) 4-digit identification number

C) Proper shipping name

D) Hazard class

B) 4-digit identification number

Exposure room alarm systems may be used to provide assurance that the source has been returned to the shielded position.

A) Never

B) Only after the last exposure

C) Only if calibrated

D) At any time

A) Never

Exposure to radiation which is not necessary is:

A) Acceptable if less than 10 mR.

B) Acceptable if less than 5 mR.

C) Acceptable as long as standard Members of the Public dose's are not exceeded.

D) Improper use of ALARA

D) Improper use of ALARA

The required basic description on an shipping paper must be in the following sequence:

A) Proper shipping name, Hazard class or Division, ID Number, Packaging Group

B) ID Number, Packaging Group, Hazard Class or Division, Proper Shipping Name

C) Hazard Class or Division, Proper Shipping Name, ID Number, Packing Group

D) Proper shipping name, ID Number, Packaging Group, Hazard Class or Division

A) Proper shipping name, Hazard class or Division, ID Number, Packaging Group

Who is responsible for controlling the restricted radiation area, high radiation area, and completion of the survey reports?

A) The assistant radiographer/radiographer trainee

B) The Radiation Safety Officer

C) The radiographer

D) No one

C) The radiographer

The Team Operating and Emergency Procedure

A) Is a document that is seldom used

B) Must be memorized

C) Must be immediately available for reference during use of ionizing radiation producing equipment and materials

D) Is only needed to get a license

C) Must be immediately available for reference during use of ionizing radiation producing equipment and materials

You are in an area where your survey meter instrument is reading 20 mR/hr. You could receive a dose of 2 millirem in ________ minutes?

A) 10

B) 4

C) 6

D) 8

C) 6

Radiation survey meters are required for use in radiographic operations must have an operating range of at least:

A) 1 mR/hr - 500 mR/hr

B) 2 mR/hr - 1 R/hr

C) 2 mR/hr - 2000 mR/hr

D) 0 mR/hr - 200 mR/hr

B) 2 mR/hr - 1 R/hr

What Team document provides instruction for the safe operation of ionizing radiation producing equipment and materials?

A) Test and Inspection Procedure 20.A.100

B) Operating and Emergency Procedures

C) Job Safety Analysis

D) Quality Systems Manual

B) Operating and Emergency Procedures

What is the reading of the pocket dosimeter noted below? [Needle aligns at 33]

A) 33 mR

B) 40 mR

C) 30 mR/hr

D) 28 mR

A) 33 mR

A ____________ is the amount of any radioisotope that gives 3.7 x 1010 disintegrations per second.

A) Millicurie

B) Roentgen

C) REM

D) Curie

D) Curie

What are the items that must be checked concerning survey meters at the beginning of each day or shift of use to ensure it is operating properly?

A) Operational response, calibration, solar activation, and battery

B) calibration, physical integrity, battery, response to radiation

C) maintenance, response to radiation, calibration and structure

D) calibration, battery, color, and maintenance

B) calibration, physical integrity, battery, response to radiation

When may radiography be performed without posting the radiation area?

A) Never

B) When direct surveillance is maintained

C) During short exposures

D) In an exposure room

A) Never

How are energy, wavelength, and penetrating power related when referring to x-rays and gamma rays?

A) The higher the energy, the longer the wavelength and the lower the penetrating power

B) They are not related

C) The lower the energy, the shorter the wavelength and the greater the penetrating power

D) The higher the energy, the shorter the wavelength and the greater the penetrating power

D) The higher the energy, the shorter the wavelength and the greater the penetrating power

The length of time it takes for an isotope to lose one-half of its strength as measured from any given time is called:

A) Half-life

B) Dwell time

C) Decay

D) None of the above

A) Half-life

You are using a 55 curie Iridium 192 source. At what distance would the dose rate be 2 mR/hr (Note: Emissivity is 5.2 R/hr/curie at 1 foot)?

A) 378 feet

B) 505 feet

C) 403 feet

D) 267 feet

A) 378 feet

The transport index of a shipping package containing radioactive materials is:

A) the packaging group of the package

B) The radiation level on the surface of the package

C) A package content indentification number

D) A number equivalent to the radiation level measured at one meter from the package

D) A number equivalent to the radiation level measured at one meter from the package

Select the following which can be used for posting an area where radioactive materials are stored.

A) Caution (or Danger) Radioactive Materials

B) Caution Radiation Area

C) Caution (or Danger) High Radiation Area

D) a and c

A) Caution (or Danger) Radioactive Materials

By definition in the regulations, a Radiographer is:

A) An employee who is certified to ASNT Level II in radiography

B) A person with extensive training in the use of x-ray equipment

C) An individual who performs or who in attendance at the site where sealed source(s) are being used, personally supervises radiographic operations and is responsible to the licensee for assuring compliance with the regulations and license conditions.

D) An individual who under personal supervision used radiographic exposure devices, sealed sources or radiation survey instruments

C) An individual who performs or who in attendance at the site where sealed source(s) are being used, personally supervises radiographic operations and is responsible to the licensee for assuring compliance with the regulations and license conditions.

Which of the following hazard classes use a transport index?

A) Explosives

B) Radioactive

C) Posion gas

D) Flammable

B) Radioactive

Most incidents of radiation overexposures to industrial radiographers can be attributed to:

A) Failure to perform required equipment maintenance.

B) Failure to perform adequate radiation surveys and follow Operating and Emergency Procedures.

C) Failure to properly connect the source drive cable.

D) Failure to properly post the radiation areas.

B) Failure to perform adequate radiation surveys and follow Operating and Emergency Procedures.

What is the proper description of controls for a transport package containing an exposure device with 38 curies of Iridium 192?

A) Radioactive Material, Type B(U), UN2916

B) Radioactive Material, Iridium 192, Special Form, UN2916

C) Radioactive Material, Special Form, N.O.S. UN2916

D) RQ, Radioactive material, Special Form, N.O.S. 7 UN 2916

A) Radioactive Material, Type B(U), UN2916

Most incidents of radiation overexposures to industrial radiographers can be attributed to:

A) Failure to perform adequate radiation surveys and follow Operating and Emergency Procedures.

B) Failure to properly post the radiation areas.

C) Failure to properly connect the source drive cable

D) Failure to perform required equipment maintenance.

A) Failure to perform adequate radiation surveys and follow Operating and Emergency Procedures.

In accordance with TCM procedures, how much radiation may a person under the age to 18 receive in a restricted area?

A) None

B) 200 millirem per week

C) 5.0 REM per year

D) 1.25 REM per quarter

A) None

Which of the following is not required to be attached by a durable, legible, clearly visible label to a radiographic exposure device?

A) Date the device was manufactured and when the next leak test is required

B) Licensee's name, address and telephone number

C) Chemical symbol and mass number of the radionuclide in the device

D) Activity and date which the activity was last measured and model number and manufacturer's identity of the sealed source

A) Date the device was manufactured and when the next leak test is required

What is the reading of the pocket dosimeter noted below? [Needle aligns at 180]

A) 150 mR

B) 160 mR

C) 180 mR

D) None of the above

C) 180 mR

A tungsten collimator 1.55" thick is used during a radiographic operation utilizing a 65 curie Cobalt 60 source. At what distance will the radiation level be 2 mR/hr? Use an emissivity factor of 14.0 R/hr/Ci at 1 foot. The half-value layer thickness of tungsten for Co-60 is 0.31 inches.

A) 675 feet

B) 119 feet

C) 234 feet

D) 169 feet

B) 119 feet

Maintenance on radiographic exposure devices and associated equipment (guide tubes, extensions, and survey meters to name a few) needs to be conducted:

A) Annually

B) Each day it is used

C) Each quarter

D) Both a and b

D) Both a and b

Why isn't a source designed for one model of exposure device and remote controls always compatible with another model exposure device and remote controls?

A) The source connection may not be compatible with the remote controls.

B) The source pigtail dimensions may be different

C) The shielding may not be adequate in the exposure device.

D) All of the above.

D) All of the above.

Which Code of Federal Regulations outlines proper packaging and transportation of radioactive material?

A) 10 CFR Part 34

B) 10 CFR Part 49

C) 10 CFR Part 71

D) 10 CFR Part 19

C) 10 CFR Part 71

Isotopes are atoms with the same atomic number but ______________________.

A) More electrons

B) Different atomic weights

C) More protons

D) Less protons

B) Different atomic weights

In the event that the whole body film badge is dropped or becomes free from the control of the individual to which it was assigned, during the performance of operations that result in occupational exposure, and there is any doubt to whether the badge had received exposure, it is the wearer's responsibility to inform the FRSO within ________. (Failure to perform notification may result in suspension of authorization to conduct radiographic operations)

A) 3 days

B) 24 hours

C) 8 hours

D) 4 days

B) 24 hours

What is the basic difference between x-rays and gamma rays?

A) The origin

B) The biological effectiveness

C) The energy level

D) The ionization properties

A) The origin

What are the methods a radiographer can utilize to reduce his/her exposure to radiation?

A) Shielding

B) Distance

C) Time

D) All the above

D) All the above

The acronym ALARA means:

A) All levels are restricted areas

B) All levels are reasonable activity

C) As long as radiography allows

D) As low as reasonably achievable

D) As low as reasonably achievable

"RAD" is the abbreviation for:

A) Radiation

B) Relative Accumulated Dose

C) Radiation Absorbed Dose

D) None of the above

C) Radiation Absorbed Dose