STE #4

Question 1

Which of the following conditions would require an area to be posted as a Radiation Area.

Answer 1

30 cm dose rate of 5 mrem/hr

Question 2

Which of the following is the best definition of High Radiation Area?

Answer 2

Any area, accessible to individuals, in which the radiation levels could result in individual receiving a dose equivalent in excess of .1 rem (100 mrem) in
one hour 30 cm from the source or 30 cm from any source the radiation
penetrates.

Question 3

The boundary dose rate for an area posted as a Radiation Area should meet which of the following conditions?

Answer 3

< 4 mrem/hr

Question 4

Any area, where the dose rates at 30 cm from the source of radiation is 5 mrem/hr or greater, shall be posted with a sign bearing the radiation symbol and
the words “Caution, Radiation Area, RP brief required for Entry”.

Answer 4

False

Question 5

An area where the 30 cm dose rates from the source of radiation reads 480 mrem/hr should be posted as ___________ area.

Answer 5

High Radiation Area

Question 6

The criteria for posting an area as a Very High Radiation Area is ________.

Answer 6

An area >= 500 rads at 1 meter from the source

Question 7

An area should be posted as a neutron area if the general area neutron dose rates are greater than 2 mrem/hr.

Answer 7

False

Question 8

The locations for a radiation area boundary for radiography will be established by the shot plan and will be located at what projected dose rate?

Answer 8

< 2 mrem/hr

Question 9

An area with contamination levels of 60,000 dpm/100 cm2 should be posted as a contamination area?

Answer 9

True

Question 10

The definition for a discrete radioactive particle (DPR) is _________

Answer 10

1. Small, loose, highly radioactive > 500,000 dpm,

and 2. Small, loose, highly radioactive > 50,000 ccpm

Question 11

11. An area where the potential dose to an individual from inhalation of alpha contamination is estimated to be between 10-90 percent of the total dose should
    be posted as which of the following.

Answer 11

Alpha Level 2

Question 12

An area where the beta-gamma/alpha ratio is less than 300 should be posted as __________.

Answer 12

Alpha Level 3

Question 13

The criteria for posting an Airborne Radioactivity Area is which of the following?

Answer 13

1. > = 30% of DAC particulates,
2. > = 30% of DAC Iodine
   and 3. >= 1 DAC Noble gas

Question 14

The wording on the sign to post an Airborne Radioactive Area is which of the following?

Answer 14

A. Caution, Airborne Radioactivity Area, Notify RP Prior to Entry

Question 15

A hot spot should be posted where the contact dose rates are > 100 mrem/hr AND the ______________ general area dose at 30 cm.

Answer 15

> 5 times

Question 16

The hierarchy for posting radiological conditions is to always list the airborne hazard first.

Answer 16

False

Question 17

Dose rates are required to be listed on containers of radioactive material if the dose is _______________’

Answer 17

> = 2 mrem/hr

Question 18

Ensure the catch containment and drain tubing is conspicuously labeled for containing contamination if the containment is located in a non-contaminated
area.

Answer 18

True

Question 19

Containers of radioactive material are not required to be labeled under which of the following conditions below.

Answer 19

Container is attended by an individual who takes the precautions necessary

Question 20

A teletower, which is a device used to lift personnel for work, should be posted ______________.

Answer 20

Contact RP Prior to Working or Climbing above 7 feet

Question 21

An area where the 30 cm dose rates are 90 mrem/hr should be posted as ___________.

Answer 21

High Radiation Area

Question 22

An area that is posted as a High Radiation Area must have a barrier that completely encompasses the area except at the S.O.P, which can be open for
access.

Answer 22

False

Question 23

Which of the following is the correct wording for a High Radiation Area posting?

Answer 23

Caution, High Radiation Area, RP Brief Required for Entry

Question 24

An area with the surface contamination levels of 120,000 dpm/100 cm2 should be posted as which of the following

Answer 24

High Contamination Area

Question 25

If the beta-gamma/alpha ratio is < 50, what additional information must be added to the area posting.

Answer 25

Frisking/Monitoring Required Upon Exit