Free Mechanical Aptitude Test Practice Questions and Answers

Free Mechanical Aptitude Test Practice Questions and Answers

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Mechanical aptitude tests are designed to assess your understanding and ability to apply basic mechanical and physical principles. Below are some common question types you might encounter.

Or click on the relevant topic for instant access to sample questions:

• Electricity: Questions in this category will evaluate your basic understanding of electrical concepts.
• Maintenance: Includes Applied mechanics questions such as PLC, Hydraulics, and Pneumatics.
• Kinematics (Velocity): Kinematics questions focus on motion geometry.
• Quantitative: Quantitative questions include mechanical questions that involve numerical calculations.
• Thermodynamics: Test your understanding of the influences of forces and torques (rotational forces) that are exerted on various objects.
• Force and Movement: This type of question tests your understanding of how forces affect the motion of objects.
• Simple Machines: Questions about simple machines test your understanding of basic mechanical devices like levers, pulleys, gears, and inclined planes.

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This free test will cover questions from the more common Mechanical Aptitude tests. These tests include questions with varying difficulty, format, content, and time frame.

Free Mechanical Aptitude Test with Answers

Mechanical aptitude tests (also known as mechanical reasoning tests) assess your basic mechanical knowledge, i.e., your ability to understand basic mechanical concepts and apply them to various scenarios.

The mechanical test questions will usually contain one or more images followed by multiple-choice questions with a time limit, covering topics such as gears, thermodynamics, fluid mechanics, and more. Let’s review a few examples, solving tips, and common exams that require mechanical knowledge.

Electricity

1. A device used to store electrical energy is called a:

Answer:

The correct answer is C.

The question asks for the device that is used to store electrical energy. Let's go through the options one by one.

A. A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. It is primarily used to limit current and/or divide voltages in electrical circuits. It doesn't store energy but rather dissipates it in the form of heat.

B. A diode is a semiconductor device that allows current to flow in one direction but not another. It is commonly used for rectification (converting alternating current to direct current), among other applications. While it can be part of circuits that store energy, the diode does not.

C. A capacitor is an electrical component that stores and releases electrical energy in a circuit. It stores energy by accumulating an internal imbalance of electric charge between its plates, and it can release that stored energy when needed. Therefore, it is the device used to store electrical energy.

D. An inductor is an electrical component that stores energy in a magnetic field when an electrical current is passed through it. While it does store energy, it is not electrical energy per se but rather magnetic energy.

Moreover, it's commonly used to store energy temporarily and is often used in filtering applications and energy storage in inductive-based convertors but is not primarily designed for electrical energy storage in the way a capacitor is.

Based on the above explanations, the correct answer is C - Capacitor. This is the device that is specifically designed to store electrical energy in an electric field between its plates.