Army Technical Selection Test (TST) Preparation (2026)

Our British Army TST PrepPack gives you focused preparation across all the mathematical question types assessed in the test, building speed, precision, and confidence under strict time limits.

• 2 Full Test Simulations: Realistic full-length TST assessments covering all question types across the complete 45-minute time limit.
• 27 Targeted Practice Tests & Drills: Including numerical reasoning, numeracy skills, number series, word problems, and rapid-fire drills, covering every mathematical area assessed in the TST.
• 3 Study Guides & Video Tutorials: Expert strategies and clear explanations for the most challenging TST question types.

Everything you need to prepare effectively and secure the technical trade you want. Here's a sneak peek:

The Army Technical Selection Test (TST) is a specialist maths assessment required for candidates applying to technical trades within the British Army, including the Royal Engineers, Royal Signals, Royal Electrical and Mechanical Engineers (REME), and the Royal Logistic Corps.

If you're unsure whether your chosen role requires the TST, speak to your local Army recruiter for confirmation.

The TST is designed to assess mathematical ability at approximately GCSE level, covering a broad range of question types across arithmetic, algebra, geometry, and data interpretation. All 55 questions are mathematical in nature and must be completed within 45 minutes (roughly 49 seconds per question), making speed and accuracy equally important.

The TST test format is as follows:

• Questions: 55 multiple-choice questions across 28 different question types
• Time limit: 45 minutes
• Materials: Pen or pencil and paper are provided. Check your assessment invitation for confirmation of whether a calculator will be available.
• Level: Broadly equivalent to GCSE maths

Unlike the Army Cognitive Test (ACT), which all candidates must sit, the TST is only required for those applying to technical trades. Your TST score directly determines which technical roles you're eligible for, and the higher your score, the more options available to you.

The following sample questions give you a sense of the mathematical skills and question types assessed in the Army Technical Selection Test.

These questions give you a taste of the mathematical skills assessed in the Army Technical Selection Test, from compound percentages and data interpretation to algebraic factorisation.

The TST is marked out of 55, with one mark per correct answer. There is no negative marking, so it's always worth making your best guess if you're unsure rather than leaving a question blank.

The minimum score required varies by trade, with thresholds ranging from 19 to 30 out of 55 depending on the role. The higher your score, the more technical trades become available to you, so aiming for the highest possible score, rather than just the minimum for your chosen trade, gives you the most flexibility

Your TST score is valid for 24 months from the date of the test. If you don't achieve the required score, you're permitted one resit, with a minimum of 28 days between attempts. If you're unsuccessful after two attempts, you may be offered an alternative role that does not require the TST.

There is less than one minute per question, so preparation should focus on both accuracy and speed. Regular Army Technical Test practice under timed conditions will help you build the speed and accuracy needed on the day.

For comprehensive TST preparation, our Army Technical Selection Test PrepPack gives you realistic practice tests, targeted drills, and in-depth study guides covering all question types - everything you need to prepare effectively for your technical trade assessment.

Founded in 1992, JobTestPrep has built over three decades of experience helping candidates navigate competitive recruitment processes, including thousands preparing for the British Armed Forces and army assessments like the Technical Selection Test. Our preparation materials are developed by experts and regularly updated to reflect the latest test formats, helping candidates approach every stage with greater confidence. With more than 220 preparation courses and over one million candidates supported worldwide, we offer professionally designed PrepPacks alongside advanced tools, including our AI-powered CV Analyser and Interview Prep platform. Together, these resources help candidates across the UK and globally strengthen their applications, improve their performance, and achieve outstanding results.