TSO X-Ray Image Analysis 2 — Questions and Answers
Question 1: On an X-ray image, organic materials such as food and paper typically appear in what color using standard TSA color coding?
- Orange (Correct answer)
- Blue
- Green
- Black
Correct answer: Orange
Standard X-ray color coding displays organic materials (plastics, food, paper) in shades of orange.
Question 2: What does it mean when an object appears dark or black on an X-ray image?
- The object is very dense and absorbs most X-rays
- The object is hollow or air-filled (Correct answer)
- The object is made of organic material
- The object is made of light metal
Correct answer: The object is hollow or air-filled
Black areas on X-ray images represent air or hollow spaces because X-rays pass through them almost entirely.
Question 3: A TSO notices a wire running along the interior edge of a laptop bag. What is the recommended first action?
- Immediately call law enforcement
- Resolve the anomaly by requesting the bag be opened for physical inspection (Correct answer)
- Clear the bag and allow it through
- Ask the passenger to remove the laptop only
Correct answer: Resolve the anomaly by requesting the bag be opened for physical inspection
Unresolved anomalies like suspicious wiring require a physical inspection to resolve the threat image before clearing.
Question 4: Which X-ray image characteristic best helps a TSO distinguish a firearm from other metal objects?
- Blue coloring and low density
- Recognizable shape profile including barrel, trigger guard, and grip (Correct answer)
- Bright orange glow on the screen
- Random scattered metallic fragments
Correct answer: Recognizable shape profile including barrel, trigger guard, and grip
Firearms have distinctive shape signatures including the barrel, trigger guard, and grip that are recognizable even in cluttered bags.
Question 5: When should a TSO use the 'zoom' function on an X-ray workstation?
- On every bag to improve accuracy
- Only on bags flagged by automated threat detection
- When a suspicious area needs closer examination to identify contents (Correct answer)
- Only when a supervisor requests it
Correct answer: When a suspicious area needs closer examination to identify contents
The zoom function is used to magnify specific areas of concern to better identify the shape and nature of suspicious items.
Question 6: What is the purpose of the 'Threat Image Projection' (TIP) system used at security checkpoints?
- To display passenger photos on the X-ray screen
- To automatically flag all bags containing metal
- To insert fictional threat images into real bag scans to test TSO alertness (Correct answer)
- To project a checklist onto the X-ray monitor
Correct answer: To insert fictional threat images into real bag scans to test TSO alertness
TIP inserts simulated threat images into actual bag X-rays to continuously evaluate and maintain TSO detection performance.
Question 7: Which of the following items would most likely appear as dense blue on a standard X-ray image?
- A plastic water bottle filled with water
- A steel knife (Correct answer)
- A cotton shirt
- A bag of chips
Correct answer: A steel knife
Metal objects like steel knives appear blue on X-ray images due to their high density and atomic number.
TSO X-Ray Image Analysis 2
On an X-ray image, organic materials such as food and paper typically appear in what color using standard TSA color coding?