There are several different publishers that have created popular mechanical reasoning tests, in use around the world.
SHL Verify Mechanical Comprehension Test
SHL is one of the most well-known publishers of pre-employment assessments, and their mechanical comprehension test is a quick online assessment.
If you are taking the SHL test, you will have just ten minutes to answer 15 questions.
Bennett Test of Mechanical Comprehension (BMCT)
First published in 1940, the BMCT is one of the oldest mechanical reasoning assessments out there. Now there are two different versions of the assessment, the BMCT-I which is taken using a pencil and paper as well as the BMCT-II, which is an online test.
Usually, you will take the BMCT-II, where you will face 55 questions in just 25 minutes.
Wiesen Test of Mechanical Aptitude
The Wiesen Test is most often used in pre-employment screening for mechanical roles that have a focus on maintenance and repair. This test is similar in concept and content to other assessments, but it is longer than most others - with 60 questions that must be answered in 30 minutes.
Ramsay Mechanical Aptitude Test
This test was first developed in 2004 and is now in its fourth iteration. It is used by a number of engineering-specific firms and high-level technology firms that are looking for the best mechanical minds. The Ramsay MAT-4 can be taken in person using pencil and paper, or online and remotely.
The Ramsey test consists of 36 questions to be answered in just 20 minutes, so it is one of the shorter tests available.
Barron's Test of Mechanical Aptitude
This test is most often used in armed service recruitment, and it used to be considered the best assessment for mechanical skills.