STE #3 Flashcards
When is a radiological air sample required to be taken?
- During opening of a radioactive system which is known to cause airborne
activity,
and 2. Grinding on a contaminated surface
Air samples are required any time respiratory protection is being used for radiological purposes. True or False?
True
An air sample should be taken for which of the following…
Entry into an area with a known steam leak at a BWR
Air samples should always be taken in alpha level 1 areas. True or False?
False
Air sample should be taken in areas with removable contamination which could become suspended and airborne. Normally that would include areas with __________ dpm/100 cm2.
100,000
A significant spill of contaminated water is a reason to take a radiological air sample. True or False?
True
Grab samplers are used for the following purposes
- Determine peak airborne concentrations,
- Monitor air borne activity over short duration jobs.
and 3. Determine airborne activity when opening systems
A low volume air sampler should be used if the duration of the potentially airborne generating activity is going to last longer than _________.
60 min
When using sample heads attached to hose for remote sampling it is important to verify what?
That the unit has been calibrated with that length of sample hose
When using silver zeolite to sample for iodine the atmosphere cannot contain which of the following below?
Hydrogen
If cracks are noticed on the o-rings of an air sample head it should be removed from service or the o-rings replaced. True or False?
True
Do not place the air sampler on contaminated surfaces of __________ where the discharge from the air sampler could generated air borne activity.
10,000 dpm/100 cm2
The minimum sample volume for a personal air sample is
No limit
For sampling transuranic isotopes such as AM-241, a minimum sample volume of ___________ should be obtained
1000 liters
One method to sample noble gas is to run a high volume air sample with a silver zeolite cartridge inside. True or False?
False
To sample noble gas using the water displacement method, obtain a marinelli beaker full of water and take to the area suspected of having noble gas. Remove the lid and pour out the water into a floor drain and seal the container again with
the lid. Record the required information for the sample.
True