IRRSP - Industrial Radiography Radiation Safety Personnel Radiographic Equipment Operation Questions and Answers

Question 1

A radiographer is cranking out a source and feels significant, unusual resistance in the drive cable. Forcing the crank is unsuccessful. What is the most appropriate immediate action?

Accepted Answer

Attempt to retract the source, and if it retracts, investigate the guide tube for blockages.

Answer

Disconnect the drive cable from the exposure device to relieve pressure.

Answer

Continue to apply steady, forceful pressure to crank the source out.

Answer

Immediately run to the exposure head to see what is blocking the source.

Question 2

What is the primary safety function of the locking mechanism on a radiographic exposure device?

Accepted Answer

To prevent unauthorized use and secure the source in its shielded position.

Answer

To prevent the drive gear from wearing out.

Answer

To indicate if the device has been tampered with.

Answer

To provide a secondary method of retracting the source.

Question 3

According to 10 CFR Part 34, which of the following is a required daily operability check that must be performed on a radiographic exposure device before its first use of the day?

Accepted Answer

A visual check of the drive cable for kinks and fraying.

Answer

A leak test of the sealed source.

Answer

Verification of the source's activity using a calibration certificate.

Answer

Disassembly and lubrication of the crank mechanism.

Question 4

After retracting a source, a radiographer's survey meter shows readings significantly above background along the guide tube and at the exposure device. This indicates the source is not properly shielded. After securing the restricted area, what is the radiographer's NEXT step?

Accepted Answer

Immediately notify the Radiation Safety Officer (RSO) and follow the established emergency procedure.

Answer

Attempt to crank the source out and back in again quickly.

Answer

Use long-handled tongs to disconnect the guide tube from the device.

Answer

Replace the battery in the survey meter and re-survey the equipment.

Question 5

In a gamma radiography setup, what is the primary purpose of using a collimator?

Accepted Answer

To narrow the primary radiation beam to the area of interest, reducing scatter and dose.

Answer

To increase the activity of the radioactive source.

Answer

To filter out alpha and beta radiation from the beam.

Answer

To connect the source guide tube to the exposure device.

Question 6

Which of the following actions is a mandatory and critical safety step that must be performed *immediately* after the source has been retracted into the exposure device and before approaching it?

Accepted Answer

Performing a thorough survey of the exposure device and guide tube.

Answer

Locking the crank assembly.

Answer

Disconnecting the guide tube.

Answer

Recording the exposure time in the logbook.