STE #6

Question 1

Which of the following should be classified as a Personal Contamination Event (PCE)

Answer 1

Contamination of 200 ccpm on skin

Question 2

When an individual alarms a contamination monitor the first time, which of the following actions should initially be taken?

Answer 2

1. Note the location of the alarm and the activity,

and 2.Instruct the individual to re-monitor

Question 3

After a valid contamination alarm, in a background area of ____________cpm or less, using a frisker or equivalent instrument, and maintaining a detector to surface distance of ____________ or less, slowly survey the individual.

Answer 3

200 cpm, ½ inch

Question 4

Which of the following is a method to determine if an individual should be surveyed for potential alpha contamination.

Answer 4

Individual was working in an area posted for controlling alpha contamination, e.g. Alpha Level 2 or Alpha Level 3 areas.

Question 5

For which of the following conditions are Personal Contamination Events (PCEs) not required to be documented?

Answer 5

1. Activity was caused by a medical radioisotope,
2. Activity was caused by noble gas,
   and 3. Activity was 80 ccpm on clothing

Question 6

Fire fighters responded to a fire inside a contaminated area. Due to the emergency conditions the fire fighters did not use any protective clothing other than their fire protection gear. Upon exit from the RCA the following conditions were detected; 400 ccpm on individual firefighting gloves and 200 ccpm on firefighting coat. This event should be classified as a Personal Contamination Event (PCE). True or False?

Answer 6

False

Question 7

After surveying an individual for contamination following a validated alarm, an individual was found to have 60,000 ccpm. This should be classified as a level ______ PCE.

Answer 7

Level 3

Question 8

Discrete Radioactive Particles (DPRs) can deliver a large dose to a small area and shall be captured and removed as quickly as possible. Discrete particles are greater than ___________ ccpm.

Answer 8

50,000

Question 9

If a discrete particle is indicated on an individual’s clothing, which of the following actions should be taken.

Answer 9

1. Document the survey results using a frisker, or if necessary, an open window ion chamber reading,
   and 2. If particle was found on clothing, survey and document the reading obtained on top and underneath the clothing.

Question 10

Which of the following conditions require notification of an RP Supervisor?

Answer 10

Individual has a 1 mrad/hr DPR on bottom of shoe

Question 11

Approximately equal number of counts on the front and back chest area could be indication of internal contamination. True or False?

Answer 11

True

Question 12

If internal contamination is suspected, prior to sending an individual for a whole body count, which of the following actions should be completed.

Answer 12

Have the individual shower and don a paper suit prior to reporting for whole body counting.

Question 13

Folds of clothing, layers of clothing, or clothing saturated with sweat, can act as shielding and reduce the counts seen during surveying. True or False?

Answer 13

True

Question 14

A Personal Contamination Event (PCE) that had a reading of 6000 ccpm when contamination was initially found on the individuals scrub top. Once the clothing was removed the reading was < 100 ccpm. This PCE should be classified as…

Answer 14

Level 2

Question 15

Naturally occurring radioactive materials have a half-life less than ______minutes.

Answer 15

30 minutes

Question 16

Individual can be conditionally released with radon or noble gas under which of the following conditions

Answer 16

1. RPM/Designee has approved the conditional release,
2. Individual was not working in a posted contaminated area,
   and 3. Individual was instructed to re-monitor prior to exiting site

Question 17

An individual was monitored in a beta personnel monitor and passed with no alarms, however, the individual cannot pass a gamma monitor. This could be an indication of which of the following.

Answer 17

Internal contamination

Question 18

Which of the following actions should be taken if multiple contamination events occur at the same time.

Answer 18

1. Maintain contamination control by keeping individuals suspected of contamination segregated in one area. Provide instructions to individuals on where they should be located and why.
2. Maintain the clean area clean, perform frequent surveys and decon as needed.
   and 3. If internal contamination is suspected then notify RP Supervision so that air samples can be obtained from the work area.

Question 19

Which of the following actions should be taken as soon as possible if contamination is found on an individual’s shoes?

Answer 19

Survey from the work location to monitoring location, to identify and control the spread of contamination.

Question 20

A level 3 PCE is which of the following

Answer 20

> 50,000 ccpm

Question 21

The RP Technician should ask questions of the individual to determine the cause of the PCE. Asking if there has been a change in work scope or work process, use of a different tool, or opening a system could obtain helpful information in determining the cause. True or False?

Answer 21

True

Question 22

When dealing with a contaminated individual, only an ANSI qualified individual can perform which of the following.

Answer 22

Perform decontamination activities

Question 23

It is important to always communicate professionally with individuals who have alarmed a monitor. Which of the following terms/statements is a good example of how to communicate with a worker.

Answer 23

Frisking has indicated you have 200 ccpm on the outside of your scrubs, just below your knee.

Question 24

Gloves should always be worn while surveying an individual who has alarmed a contamination monitor, or when assisting with any decontamination efforts. True or False?

Answer 24

True

Question 25

Dose assessment should be performed if which of the following criteria is met?

Answer 25

Skin contamination of 250,000 ccpm-hours