CRI Safety Standards & Quality Control 2

Question 1

What is the primary purpose of a penetrameter (IQI) in radiographic testing?

Accepted Answer

To indicate the sensitivity and quality of the radiograph

Answer

A penetrameter (Image Quality Indicator) is placed on the source side of the test object to verify that the radiograph meets minimum sensitivity requirements.

Question 2

According to ASME Section V, the minimum source-to-film distance (SFD) is primarily governed by which factor?

Accepted Answer

Geometric unsharpness limits

Answer

Minimum SFD is calculated to ensure geometric unsharpness (Ug) does not exceed the allowable limit specified in the applicable code.

Question 3

When using a wire-type IQI, the essential wire is the thinnest wire that must be:

Accepted Answer

Visible in the area of interest

Answer

The essential wire must be visible in the area of interest on the radiograph to confirm that the required sensitivity has been achieved in that specific region.

Question 4

Which ASTM standard governs the selection and use of radiographic film for industrial applications?

Accepted Answer

ASTM E1815

Answer

ASTM E1815 classifies industrial radiographic films into categories (Class I through IV) based on speed and grain characteristics.

Question 5

A radiographic procedure requires 2-2T hole-type IQIs. The '2T' designation means:

Accepted Answer

A hole diameter equal to 2× the IQI thickness

Answer

In the 2-2T designation, '2T' specifies that the essential hole has a diameter equal to twice the IQI plate thickness.

(CRI) Certified Radiographic Interpreter Practice Test

(CRI) Certified Radiographic Interpreter Practice Test

CRI Safety Standards & Quality Control 2