TSA CBT Practice Exam Study Guide

TSA CBT Practice Test

The Transportation Security Authority Computer Based Test, which can also be referred to as the Transportation Security Officer Computer Based Test (TSA CBT), is one of the early obstacles in the TSA hiring process. The TSA uses the results of the TSA testing to easily parse out quality candidates. A poor score on the TSA CBT will prevent you from moving on to the next stage in the application process. 

What Is the Transportation Security Administration (TSA) Exam?

The Transportation Security Administration Written Exam, often referred to as the TSA Exam, is the test applicants are required to take during their application process TSA inspector, manager, or Transportation Security Officer. The TSA test evaluates your competency with object recognition, screener awareness, and English language.

What Topics Are on the TSA Computer-Based Test (CBT)?

There are two components of the TSA's CBT: Image Interpretation or the X-Ray Test, and the Written Skills Assessment.

What Is on the TSA X-Ray Test?

The X-Ray test is the more difficult of the two assessments, primarily because this is content unique to the position. On the image interpretation test (also called "baggage scanner training" and the Object Recognition Test or ORT), you will be shown images of baggage that have gone through the X-Ray machine. You will be given only a few seconds to review the baggage and identify target objects. The target items will be forbidden items such as; weapons, bottles, shoes, drugs, or electronics. You will need to decide whether to pass, alarm, or hold a bag due to its content. If you pass the baggage, you decided the bag does not contain any harmful items. If you select alarm, you have indicated that the item has a prohibited item and you request police intervention. If you hold an item, you have identified a prohibited item which requires intervention by a TSO officer and further screening such as; physical search or use of Explosive Trace Technology (ETD).

How Do You Read an X-Ray?

Interpreting an X-Ray can be quite challenging. Understanding the different color combinations and finding harmful items can be trickier than one would expect.

TSA CBT Exam X-Ray Sample
CBT Test X-Ray Example. Photo Credit teledyneicm.com

Black and white images are quite sharp. Depending what you are looking for the items can be quite visible. You can easily parse out the gun, bullets and computers.

How Do You Interpret X-Ray Colors?

If the image is not so straight forward you can use color detection. The basics to understanding color principles in X-Rays is knowing that color highlights the difference in density of various materials. When an item is more dense it will be bluer. Conversely, less dense, lighter items will be on the red scale.


The color blue usually denotes hard materials including; metal, hard plastics, alloys etc. Any wires, batteries, sunglasses, guns, etc. will show up on the blue/ black scale.

TSA CBT X-Ray Sample Blue Color represents Plastic and Metal objects
Screenshot showing an X-Ray image of a passenger bag from the X-Ray OCNT with framed harmless everyday objects. Photo Credit researchgate.net


Green represents less dense plastics and alloys. The combination of plastic and metal will most likely be some kind of electronic device.

TSA CBT X-Ray Sample Orange Color represents Biological Material
CBT Test X-Ray Example. Photo Credit teledyneicm.com


The orange represents any biological material. This covers natural items and some other materials including; rubber, food, leather, non-plastic explosives, liquids, gels and organic powders (like flour, baking soda, ect.). These colored items are often important to pay attention to because explosives are often partly composed of organic materials like glycerin, potassium nitrate, and TNT. Additionally, drugs such as heroin, cocaine, and cannabis are all classified as organic products. That’s why identifying biological materials is extremely important.

Here is what an X-Ray of 11 kilos of cocaine bricks in a suitcase looks like to border agents at Toronto airport. Photo Credit: Adrian Humphreys
Here is what an X-Ray of 11 kilos of cocaine bricks in a suitcase looks like to border agents at Toronto airport. Photo Credit: Adrian Humphreys


Red zone indicates less dense items. This means the machine encountered little to no resistance when scanning the object. This object could be made out of light materials including; fabric, carton, or paper.

TSA CBT X-Ray Sample Red Color represents less dense items
CBT Test X-Ray Example. Photo Credit snallabolaget.com

How Do You Read the Airport X-Ray Image?

Now that you have a basic understanding of the materials categorized by color, it is important to identify the outline of a target object. Often items might be placed on the conveyor belt at an odd angle, keep this in mind when detecting the objects outline.

There will be slight differences in color depending on the machine and manufacturer. It is important to understand the basic principles and once you are hired as a TSO officer you will receive ample training on the subject.

What Is on the TSA Writing Skills Assessment?

The TSA Writing Skills Assessment test is a multiple choice test given with time constraints. This portion tests your understanding of basic principles of English grammar, word usage, syntax, sentence structure and paragraph organization.

Before taking the test make sure you are familiar with the following content areas:

  • Sentence Construction
  • Use of Phrases in Sentences
  • Use of Clauses in Sentences
  • Restrictive and Nonrestrictive Phrases and Clauses
  • Verb
  • Verb Voice
  • Verb Tense
  • Verb Mood
  • Infinitive
  • Gerund
  • Participle
  • Noun
  • Pronoun
  • Adjective and Adverb
  • Article
  • Preposition
  • Conjunction
  • Sentence Organization within Paragraphs
  • Tense Shifts
  • Punctuation
  • Capitalization

It is important that you answer every question and note that there is an option D which states "no correction is needed" and this is a viable answer. For most applicants this information is rusty in their minds. They would most likely benefit from reviewing a TSA writing skills assessment practice test.

Check out this free TSA CBT study guide and preparation for the TSA Writing Skills Assessment portion of the TSA computerized test.

How Is the TSO Test Scored?

Applicants will not be penalized for wrong answers. Scoring is based on correct answers only. This means that it works in your advantage to take educated guesses. Your results on this exam will help place you into one of three categories:

  • Best Qualified
  • Highly Qualified
  • Qualified

Scoring high is extremely important because those candidates placed in the best qualified category have the best chance of landing the job they want.

Don’t be afraid to prepare in advance and use TSA computer based test practice materials to help gain a competitive edge.

New FREE TSA Screener Practice Test

Get a taste of the actual exam with this free 10 questions TSA screener that is to be completed in five minutes. The free practice tests includes 5 object recognition screening questions and 5 writing skills assessment questions. This is a great window into what the actual test is going to be like. This TSA screener english test and screener object recognition test can be the first step to make sure you are on your way to landing that competitive TSA position. For more comprehensive practice take a look at the full practice pack which includes 13 object recognition practice tests and 18 writing skills assessment practice tests. This practice pack has a newly added diagnostic test which you can take to begin with and pinpoint your strengths and weaknesses.

How Can You Prepare for the TSA Test?

Take a TSA Computer Based Test practice screener in advance.

Is the TSA CBT Test Hard?

The test itself is not very hard. That being said, for most taking it the X-Ray section is a completely new playing field. It is extremely important to put in a little bit of effort to ensure that you pass the test. We partnered up with JobTestPrep to give you a X-Ray study guide and drills to help ensure you know what to expect.

What's Included in Jobtestprep's Transportation Security Administration Exam Preparation

  • 19 Reading comprehension tests, 3 Written communication tests & 3 English grammar tests
  • 2 Information presentation practice & 2 Paragraph organization practice
  • 8 Vocabulary tests & 2 Restatement tests
  • 1 Diagnostic test & guide
  • 1 Passage organization test
  • 2 Punctuation tests
  • 2 Restatement tests
  • 7 X-Ray drills & 1 Study guide

Learn more about this preparation pack here.

What Happens If You Fail the TSA CBT Test?

If you fail or do not attend your scheduled test time you will see an "X" on your application dashboard. This means you will be ineligible for any TSO openings for six months. Those who fail the CBT test or miss their scheduled time after two different CBT testing opportunities will no longer be eligible to take the TSA CBT test for the TSO position. It is important to try and pass the TSA CBT test on the first try. Even, if you pass the test immediately the hiring process can be quite lengthy. There are many applicants in the pool, and you want to ensure if a job opens in your area that you are eligible. Practice with this TSA CBT practice test.

TSO CBT Test Sample Questions and Explanations

Ensure you are prepared on the test day by knowing what to expect. These practice questions are similar to, but not the same as, the questions on the actual exam. The practice questions are followed by detailed explanations. Start preparing today to earn the job you want. Get an idea of the types of questions you will see on the TSA CBT test.

New! Practice with more TSA test prep free sample questions that include X-Ray pictures, Verbal Reasoning, Reading Comprehension, Vocabulary - Antonyms, Verbal - Sentence Completion exercises for free.

TSA CBT Test Sample Question 1

Writing Skills Test Instructions:
Choose the one answer that represents a correction that should be made to the sentence. If no correction is necessary, choose (D).

Once a request to bring firearms into a foreign country are approved, a Federal Air Marshal must send a notification to the Office of Foreign Operations to coordinate the request.

  1. change bring to brought
  2. change are to is
  3. change coordinate to coordination
  4. no correction is necessary
Answer + Explanation

The correct answer is B: change "are" to "is".

There must be subject/ verb agreement in number. The subject, "request," is singular and, therefore, the verb should be singular meaning "is" rather than "are".

TSA CBT Test Sample Question 2

Supervisor Jones understands that it is essential for his TSA inspectors to understand each of the fundamental principals that apply to all procedures relating to canine training.

  1. Change "understands" to "understands those"
  2. Change "each" to "each and every one"
  3. Change "principals" to "principles"
  4. No correction is necessary
Answer + Explanation

The correct answer is C: change "principals" to "principles".

The meaning of the word "PRINCIPLES" is a rule or code of conduct. Where as the word "PRINCIPAL" means someone with authority or first and foremost.

TSA CBT Test Sample Question 3

Writing Skills Test Instructions:
Choose the one answer that is the best revision to the underlined word(s) or phrase(s) in the sentence.

The TSO officer training program is long, grewling and fatieging.

  1. grueling/ fatieging
  2. grewling/ fatiguing
  3. grueling/ fatiguing
  4. grewling/ fateeging
  5. No correction is needed
Answer + Explanation

TSA CBT Test Sample Question 4

X-Ray Test Instructions:
Identify different types of guns found in X-Ray pictures of luggage. Each of the target items will be shown for 15 seconds. Then you will be presented with a set of questions. Determine if a gun appears in the questions that follow. If the item appears, press the number 1. If not, you should press the number 3.

Here are the items you will be given to study for 15 seconds:

TSA CBT Test Sample Question X-Ray
Source: https://idahonews.com/news/local/spokane-international-airport-sees-raise-in-firearms-going-through-security
Answer + Explanation

Here we see the clear presence of a gun. We see the clear blue/black outline with denotes the presence of metal. It is important to understand that the questions will get progressively harder.

TSA CBT Test Sample Question X-Ray
Source: https://i-hls.com/archives/85361
Answer + Explanation

We can see that there is no trace of a gun.

TSA CBT Test Sample Question X-Ray
Source: Simulscan & DailyMail
Answer + Explanation

Only the handle of the gun is visible in this picture. We can see the handle is presenting in blue/black which represents metal, hard plastics, alloys etc. With an outer shell of green which can be the handles coating which is made of a plastic where the density isn’t great enough to make it blue or black.

TSA CBT Test Sample Question X-Ray Answer

Full Disclosure
These X-Ray examples represent the most basic format of the question. The actual test will present pictures with much more complexity. Images are presented from an easier, canonical viewpoint, and also from more difficult, rotated, or obstructed viewpoint. If you want more practice for your TSA CBT Test including sample X-Ray questions take a look at this TSA CBT practice pack. Polish your reading comprehension, vocabulary, grammar, punctuation, learn how to reorganize texts, and most importantly how to read an X-Ray.

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