Mechanical Aptitude is one of three sections of the EIAT (Elevator Industry Aptitude Test), an important step on your way to becoming an elevator mechanic, alongside the math section and the verbal reasoning section. It contains 25-35 questions to be solved in around 30 minutes.
Answering the questions in this section requires understanding mechanical principles, functions, and applications.
It is important to know that only several mechanical topics are covered in the EIAT mechanical section, so it’ll be wise of you to focus on them rather than taking on a full mechanical aptitude prep course.
The following guide will provide you with all the information and practice you need to receive a high score on the EIAT Mechanical Aptitude section, with sample questions and tips for acing the test.
The EIAT Mechanical Aptitude section contains 25-35 questions that cover 3 main topics:
The entire EIAT test has a limited time of around 1.5, so it takes approximately 30 minutes to complete this section.
The Gears questions require basic knowledge of physical principles that work on gears.
To receive a high score in the Gears questions, you need to understand how the whole system works together and how each cog's movement affects the other parts of the system.
In which direction does the grey wheel turn? (If neither, mark C.)
Correct!
Wrong
Wrong
When contact is made between the rack (toothed belt) and the cogwheels, a conversion from a linear velocity to an angular velocity occurs. The location of the point of contact is critical.
The point of contact between the red cogwheel and the rack is in the lower part of the red cogwheel. The counterclockwise angular velocity induces a linear velocity to the right.
The point of contact between the grey cogwheel and the rack is in the grey cogwheel's upper part. The linear velocity to the right (determined by the rack) induces an angular velocity in a clockwise direction.
The Wheels and Pulleys questions require understanding the basic mechanism rules of these elements.
To answer these questions, you need to comprehend the relationships between speed and size, linear- rotational velocity, force reduction, etc.
In which direction will the wheel spin? (If neither, mark C.)
Wrong
Correct!
Wrong
A band connects the two wheels on the left. The clockwise rotation of the initial wheel (blue arrow) determines the movement of the band, which, in turn, rotates the top wheel counterclockwise. That is because the band is crossed.
The two wheels at the top are connected by a rod; thus, both rotate in the same direction. The wheel in question is connected by a straight band to the top right wheel, and will therefore rotate in the same direction - namely, counterclockwise.
Which bicycle wheel turns faster? If they both have the same turn rate then please select answer 3.
Correct!
Wrong
Wrong
Both bicycle wheels are connected to the same axis (the bicycle) and, therefore, the distance they must pass during the same amount of time is equal.
Yet, the speed at which they do it differs: The smaller the circumference of the wheel the more rotations it will have to complete in order to pass the same stretch of road. Since wheel 1 is the smaller wheel it must turn faster to 'keep up' with the bigger wheel (wheel 2).
The correct answer is 1
The Force and Torque questions require knowledge about things like force equilibrium, law of the lever, and (rarely) torque calculation. This is probably the most versatile part of the entire section. However, though coming in many shapes and sizes, the questions here are actually based on a very small number of physical principles.
In which direction should the acrobat move his body to balance the seesaw? (If neither, Mark C.)
Wrong
Correct!
Wrong
A seesaw is an example of a first-class lever, where the fulcrum is between the effort and load.
For the seesaw to be balanced, the torque applied by the acrobat must increase. Since the acrobat's weight is constant, the only way to increase the input torque is by increasing the distance from the fulcrum.
Moving in direction B will shift the acrobat’s center of gravity farther from the fulcrum, resulting in greater torque, thereby balancing it.
Preparedness is key when applying for any job, this one is no exception. Studying beforehand for the different sections of the aptitude test, as well as for the oral interview, will give you the edge over other candidates! Here are a few helpful tips:
Learn more tips on acing the Mechanical Aptitude Questions.
The Most Accurate EIAT Mechanical Aptitude Practice Tests with 2 full-length EIAT test simulations and 5 additional Mechanical Aptitude practice drills.
Study guide that cover all the topics of the EIAT Mechanical Aptitude section.
Detailed answers and explanations to all the Mechanical Aptitude practice questions.
You can also check out our Complete PDF EIAT Test and take a free EIAT sample test.
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