IRRSP Source Management and Security 2

Question 1

Where must exposure devices containing sealed sources be stored when not in use?

Accepted Answer

In a licensed, secured storage location meeting NRC physical security requirements

Answer

In any locked room at the facility

Answer

In a locked vehicle at the job site overnight

Answer

At the device manufacturer's facility between jobs

Question 2

Which isotope is most commonly used in portable industrial radiography exposure devices due to its appropriate half-life and gamma energy?

Accepted Answer

Iridium-192 (Ir-192)

Answer

Cobalt-60 (Co-60)

Answer

Cesium-137 (Cs-137)

Answer

Selenium-75 (Se-75)

Question 3

What is the required immediate action if a sealed source leak test yields removable contamination above the regulatory limit?

Accepted Answer

Remove the source from service immediately and notify the NRC

Answer

Increase the survey frequency and continue operations

Answer

Perform a second confirmatory leak test before taking action

Answer

Wait for additional activity decay before retesting

Question 4

What is a 'pig' in the context of industrial radiography source management?

Accepted Answer

A portable shielded container used to store or transport sealed sources

Answer

A contaminated source that cannot be used

Answer

The lead collimator attached to the front of an exposure device

Answer

The connecting cable between the control console and exposure head

Question 5

How frequently must radiographers physically account for all sealed sources in their possession to ensure source security?

Accepted Answer

Before and after each use

Answer

Daily at shift start

Answer

Weekly at minimum

Answer

Monthly inventory audits

Question 6

Which of the following is NOT required on a source inventory record under 10 CFR 34?

Accepted Answer

Name of the radiographer who used the source most recently

Answer

Identity of the isotope

Answer

Serial number of the sealed source

Answer

Estimated activity on a specified reference date

Question 7

What type of transport package is required for moving industrial radiography sources between job sites under DOT regulations?

Accepted Answer

A DOT Type A package meeting activity limits

Answer

Any container with posted radiation warning labels

Answer

A standard locked metal toolbox with a survey meter attached

Answer

A DOT Type B package regardless of source activity