ASVAB – Mechanical Comprehension – MC

To become a successful military person, one needs to have thorough knowledge of the mechanics of various objects like cars, pulleys, levers etc. Although, these do not form a part of your high school curriculum, they are an extension of Physics and Chemistry. The Mechanical Comprehension (MC) questions of the ASVAB evaluate your knowledge and interest in the workings of objects and the principles behind them.


  • If you will take the computer-based version of the ASVAB, you will find 16 questions here that you need to answer in 20 minutes.
  • If you will take the pen and paper version, then you will find 25 questions that you have to answer in 19 minutes.
  • You need to make sure that you are fast in answering these questions because you will not be given any extra time if you are unable to complete this subtest.

ExamFocus’ Practice Support

The information mentioned above provides an insight into the nature of the sub-test. However, if you want to ace the examination, you must know the topics covered under the Mechanical Comprehension (MC) sub-test. Ensure that you have practiced this section well before you decide to take the test. A perfect score can be achieved only if you practice and prepare well. Use ExamFocus’ sample practice questions to get your skills sharpened.

Testing & Scoring Scheme

  • Mechanical Comprehension (MC) is an essential skill that you must develop if you are keen to work on the field. Otherwise if you want to join the maintenance section of the military, the knowledge of machines becomes mandatory.
  • The sub-test’s score shall account for the Mechanical Aptitude Score.
  • If you get a low score, you may not be able to qualify to join the U.S Armed Forces.

CAT ASVAB: Candidates taking the computerized version of the ASVAB will have to solve 16 questions in this sub-test in 20 minutes. This format of the examination is a computer adaptive one.Pencil and paper ASVAB: In this traditional format of ASVAB you will have to solve 25 Mechanical Comprehension (MC) questions in 19 minutes.

Question Modeling & Syllabi Brief

The following are the concepts from which you shall have to face questions in this sub-test:

  • Type of questions that are asked in this sub-test of the ASVAB: The questions usually comprise of a diagram, a question framed on the diagram and a choice of four possible answers.
  • Topics covered under the Mechanical Comprehension (MC) sub-test of ASVAB: Most of the questions that you will come across in this sub-test are based on preliminary principles of physics. The questions pertaining to the different types of lever, methods employed to reduce friction, maximization of efficiency etc.
  • Basic concepts regarding the working of machines: Most military personnel have to get acquainted with the workings of various vehicles and it helps if you join with some prior concept of them.

How to Improve Your Skills

Survival skills are essential for any military personnel, because during service all military personnel have to face situations, which might be dangerous and life threatening. It has often been observed that Mechanical Comprehension (MC) comes in handy during such scenarios.However, it is difficult to learn the set pattern of Mechanical Comprehension (MC), because the questions are quite unique and covering quite a few subjectsExamFocus brings to you hundreds of Mechanical Comprehension (MC) practice questions that are designed to cover all the topics concerning ASVAB to help you increase your skills. On clicking the following five links, you shall go to the page that offers hundreds of sample questions for your practice.