CRI Radiographic Film Interpretation

Question 1

What is the primary purpose of radiographic film interpretation in welding?

Accepted Answer

To detect internal weld defects nondestructively.

Answer

To visually inspect weld surface only.

Answer

To test weld tensile strength.

Answer

To measure weld temperature.

Question 2

Which defect appears as a dark area on radiographic film?

Accepted Answer

Porosity.

Answer

Cracks.

Answer

Lack of fusion.

Answer

Undercut.

Question 3

What is the effect of weld overlap on radiographic film?

Accepted Answer

Appears as excess weld metal beyond fusion line.

Answer

Shows as a uniform weld bead.

Answer

Causes dark shadows everywhere.

Answer

No effect on film.

Question 4

Which interpretation technique uses density variations to identify weld defects?

Accepted Answer

Radiographic interpretation.

Answer

Magnetic particle inspection.

Answer

Visual inspection only.

Answer

Ultrasonic testing.

Question 5

How does lack of fusion appear on radiographic film?

Accepted Answer

Dark line or gap indicating poor fusion.

Answer

Continuous bright line.

Answer

Uniform density.

Answer

No visible defect.

Question 6

What is the recommended viewing distance for interpreting radiographic film?

Accepted Answer

Approximately arm’s length.

Answer

Close to the film surface.

Answer

Far from the film.

Answer

Any distance is fine.

Question 7

Which equipment is essential for radiographic film interpretation?

Accepted Answer

Light box.

Answer

Welding machine.

Answer

Magnetic probe.

Answer

Ultrasonic scanner.

Question 8

What is a common cause of film fogging in radiography?

Accepted Answer

Exposure to light before processing.

Answer

Proper shielding.

Answer

Correct storage.

Answer

Using fresh film.

Question 9

Why is experience important in radiographic film interpretation?

Accepted Answer

To accurately identify defects and avoid errors.

Answer

To speed up welding.

Answer

To avoid using safety equipment.

Answer

To ignore minor defects.