100+ Free CID 311A Special Agent Practice Questions

Pass your Army CID 311A Special Agent Selection Exam (Phase I Cognitive/Logical Reasoning) exam on the first try — instant access, no signup required.

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A unit closed 12 cases in January, 18 in February, and 15 in March. What was the average number of cases closed per month?

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AFOSI Special Agent Selection Cognitive Exam (Air Force Office of Special Investigations)

Practice Questions100 questions

2026 Statistics

Key Facts: CID 311A Special Agent Exam

~3 hours

Phase I Battery Length

U.S. Army CID / Warrant Officer Recruiting

3 test types

Cognitive, Behavioral, Logical Reasoning

U.S. Army CID Phase I overview

Top Secret

Required Security Clearance (SSBI)

U.S. Army CID

MOS 311A

CID Special Agent Warrant Officer

U.S. Army Recruiting Command

15 weeks

CID Special Agent Course (Fort Leonard Wood)

U.S. Army Recruiting Command

Candidate Exam Fee

U.S. Army CID selection process

The Army CID 311A Special Agent Phase I exam is a proctored, computerized battery of about three hours combining cognitive ability, logical reasoning, and behavioral assessments for 311A applicants. It blends verbal, numerical, and abstract reasoning with reading comprehension, logic-based items, and situational-judgment and personality measures. There is no candidate exam fee, applicants need a Top Secret clearance, and selectees complete the 15-week CID Special Agent Course.

Sample CID 311A Special Agent Practice Questions

Try these sample questions to test your CID 311A Special Agent exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1All CID special agents must hold a Top Secret clearance. Warrant Officer Reyes is a CID special agent. Based only on this information, which conclusion must be true?

A.Warrant Officer Reyes holds a Top Secret clearance

B.Warrant Officer Reyes has completed 20 years of service

C.Everyone with a Top Secret clearance is a CID special agent

D.Warrant Officer Reyes investigates only fraud cases

Explanation: This is a valid categorical deduction: if all members of a group share a property and Reyes is a member, Reyes must have that property. Logic-based reasoning items reward conclusions that follow necessarily from the stated facts.

2A passage states: 'No evidence may be admitted at trial unless its chain of custody is documented. Item 7 lacks a documented chain of custody.' Which conclusion is valid?

A.Item 7 may not be admitted at trial

B.Item 7 is physical evidence

C.The chain of custody for Item 7 was destroyed

D.Item 7 proves the suspect's guilt

Explanation: Applying the rule (no documentation means not admissible) to Item 7, which lacks documentation, yields a necessary conclusion. This is a straightforward modus ponens deduction common on logic-based reasoning sections.

3If a report is incomplete, it is returned for revision. Detective Hahn's report was NOT returned for revision. Which conclusion follows logically?

A.Detective Hahn's report was not incomplete

B.Detective Hahn's report contained no errors

C.Detective Hahn is a senior agent

D.All complete reports are returned for revision

Explanation: This is valid modus tollens: if incompleteness leads to return, and the report was not returned, then it was not incomplete. Denying the consequent allows you to deny the antecedent.

4Some agents in the field office are polygraph examiners. All polygraph examiners completed advanced training. Which statement must be true?

A.Some agents in the field office completed advanced training

B.All agents in the field office are polygraph examiners

C.No agents completed advanced training

D.Every agent who completed advanced training is a polygraph examiner

Explanation: Combining 'some agents are examiners' with 'all examiners completed training' guarantees that at least those examiner-agents completed advanced training. The valid conclusion uses 'some,' matching the weaker premise.

5A briefing states: 'Whenever the duty agent is unavailable, the alternate agent responds. The alternate agent did not respond to the call.' What can be concluded?

A.The duty agent was available

B.The duty agent was unavailable

C.No call was received

D.The alternate agent was unavailable too

Explanation: By modus tollens: unavailability of the duty agent forces an alternate response; since the alternate did not respond, the duty agent must have been available. Denying the consequent yields denial of the antecedent.

6Passage: 'Every felony investigation with an Army nexus is reported to the chain of command. Some larceny cases are not reported to the chain of command.' Which conclusion is valid?

A.Some larceny cases are not felony investigations with an Army nexus

B.All larceny cases are felonies

C.No larceny case has an Army nexus

D.Every reported case is a larceny

Explanation: If all Army-nexus felonies are reported, any case that is not reported cannot be an Army-nexus felony. Therefore the unreported larceny cases fall outside that category. This is a valid contrapositive-style syllogism.

7Four agents (A, B, C, D) sit in a row. A is not at either end. B sits immediately left of A. C sits at the right end. Which arrangement, left to right, is possible?

A.B, A, D, C

B.A, B, D, C

C.D, C, B, A

D.B, A, C, D

Explanation: C must be at the right end, B must be immediately left of A, and A cannot be at an end. The order B, A, D, C places B left of A, keeps A off both ends, and puts C at the right end, satisfying every constraint.

8Statement: 'If a witness statement is sworn, it is executed under oath.' Which is logically equivalent (the contrapositive)?

A.If a statement is not executed under oath, it is not sworn

B.If a statement is executed under oath, it is sworn

C.If a statement is sworn, it may not be under oath

D.All statements under oath are unsworn

Explanation: The contrapositive of 'if P then Q' is 'if not Q then not P,' and it is always logically equivalent to the original. Negating and swapping 'sworn' and 'under oath' gives the correct equivalent.

9A report concludes: 'The suspect was at the scene because his fingerprints were found there.' This argument is weakest against which objection?

A.The fingerprints could have been left at another time

B.The suspect confessed to being present

C.Fingerprints can be transferred on moved objects

D.No timestamp links the prints to the offense

Explanation: An objection weakens an argument by offering an alternative explanation. A confession that the suspect was present actually supports the conclusion, so it is the weakest objection. The other choices each undercut the prints-equal-presence inference.

10Passage: 'All items logged before noon were photographed. Item 12 was not photographed.' What follows?

A.Item 12 was not logged before noon

B.Item 12 was logged after noon

C.Item 12 was lost

D.Item 12 was photographed twice

Explanation: By contrapositive reasoning, if every pre-noon item was photographed and Item 12 was not photographed, then Item 12 was not logged before noon. The valid conclusion only denies the antecedent condition.

About the CID 311A Special Agent Exam

The Army CID 311A Special Agent Selection Exam (Phase I) is a proctored, computerized battery of approximately three hours used to screen applicants for appointment as MOS 311A Criminal Investigation Division special agents. The Phase I battery combines cognitive-ability testing (verbal, numerical, and abstract/figural reasoning plus reading comprehension), a logic-based reasoning test, and behavioral assessments including personality, preferences and interests, and situational judgment. Passing Phase I is one early step in a multi-stage process that also includes a written and oral evaluation, a selection board, a Top Secret single scope background investigation, and completion of the 15-week CID Special Agent Course and the Warrant Officer Basic Course at Fort Leonard Wood, Missouri. With a 2025 update, the 311A program opened to applicants from all military occupational specialties, though non-31D applicants must be vetted through the CID proponent before submission.

Questions

100 scored questions

Time Limit

Approximately 3 hours

Passing Score

Not published

Exam Fee

No exam fee (in-service Army selection process) (U.S. Army Criminal Investigation Division (USACID), proctored)

CID 311A Special Agent Exam Content Outline

~30%

Logical Reasoning

Logic-based deduction and inference: conditional logic, syllogisms, analytical sequencing, and argument analysis from short fact sets

~21%

Cognitive: Numerical Reasoning

Percentages, ratios, rates, averages, time calculations, number series, and data interpretation

~18%

Situational Judgment

Work-scenario items on decision-making, prioritization, de-escalation, ethics, and leadership

~16%

Cognitive: Verbal Reasoning & Reading Comprehension

Analogies, vocabulary, grammar, report-writing clarity, and comprehension of investigative passages

~14%

Behavioral / Personality Assessment

Personality, preferences and interests, and core-values items measuring integrity, reliability, and resilience

~11%

Cognitive: Abstract/Figural Reasoning

Visual pattern recognition with shape sequences and matrices to complete the missing element

How to Pass the CID 311A Special Agent Exam

What You Need to Know

Passing score: Not published
Exam length: 100 questions
Time limit: Approximately 3 hours
Exam fee: No exam fee (in-service Army selection process)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CID 311A Special Agent Study Tips from Top Performers

1Master logic-based reasoning first: practice valid deductions, contrapositives, syllogisms, and spotting invalid inferences such as affirming the consequent.

2Build speed on numerical items: drill percentages, ratios, rates, averages, and number series so each calculation becomes automatic under time pressure.

3Train abstract/figural reasoning by isolating which elements change and which stay constant across a shape sequence or matrix.

4Anchor situational-judgment answers in integrity, sound judgment, de-escalation, and the rule of law rather than aggression or personal preference.

5On the personality and suitability portion, answer honestly and consistently — selection systems check for contradictions across sections.

6Practice clear, active-voice report writing; grammar and clarity items reward precise, unambiguous sentences.

7Begin clearance and fitness preparation early, since Phase I is only one step in a long, multi-stage selection process.

Frequently Asked Questions

What is the Army CID 311A Special Agent Phase I exam?

It is a proctored, computerized battery of approximately three hours used to screen applicants for appointment as MOS 311A Criminal Investigation Division special agents. It combines cognitive-ability tests, a logic-based reasoning test, and behavioral and situational-judgment assessments.

Who administers and oversees the 311A selection process?

The U.S. Army Criminal Investigation Division (USACID) oversees the 311A special-agent selection process. Applicants apply through the CID proponent and Warrant Officer Recruiting; non-31D applicants must be vetted through the CID proponent before submission.

How long is the Phase I exam and what does it cover?

Phase I takes approximately three hours and combines cognitive ability (verbal, numerical, and abstract/figural reasoning plus reading comprehension), a logical reasoning test, and behavioral assessments including personality, preferences and interests, and situational judgment.

Is there a fee to take the exam?

No. The Phase I battery is part of the in-service Army selection process, so there is no candidate-paid testing fee. Applicants invest time rather than money in preparation.

What is the passing score?

The U.S. Army Criminal Investigation Division does not publish a first-time pass rate or a single numeric cut score for the 311A Phase I battery. Performance is evaluated as part of the overall selection process and board review.

What are the basic eligibility requirements?

Applicants must be U.S. citizens able to obtain and maintain a Top Secret clearance based on a single scope background investigation, hold the required college credit (associate degree minimum, bachelor's preferred), apply before the 36th birthday, and meet medical, vision, and physical standards.

What training follows selection?

Selected applicants complete the 15-week CID Special Agent Course and the Warrant Officer Basic Course at Fort Leonard Wood, Missouri, to be awarded MOS 311A. Appointment is contingent on a favorable single scope background investigation.

Can applicants from any MOS apply?

Yes. With a 2025 update, the 311A program opened to applicants from all military occupational specialties. Non-31D applicants must be vetted through the CID proponent prior to submission.