# FREE WTMA Mechanical Comprehension Questions and Answers

#### What distinguishes a capacitor from a cell, specifically?

The entire topic of symbols and circuit element applications is covered in detail in Module 10: Electrical Circuits.

#### One or more benefits of a series circuit over a parallel one are as follows:

The benefits and drawbacks of various electric circuit configurations are covered in Module 12: Series and Parallel Circuits.

#### Which type of lever is used by the hydraulic crane in the illustration?

Third Class Levers are exemplified by this. Module 1: Levers contains all the pertinent information about levers and their classes.

#### What is the ratio of the pulling force F to the load L if the weight of each pulley is equal to the load? (F / L =?)

Module 4: Pulley Systems goes into great detail regarding pulleys.

#### A force of 1200 N is used to hold a 300 N load. What is the lever's length in meters if the force is acting at a location 25 cm from the fulcrum?

Module 1: Levers provides an explanation of all aspects of levers and their classes, including mathematical computations.

#### Which process DOES NOT involve using a magnet?

Module 14: Magnetism provides an explanation of magnets and their characteristics. You will also learn how to manufacture a magnet in this subject.

#### What is the number of rotations and direction of the little wheel (B) if the larger wheel (A) rotates three times in a clockwise manner?

In Module 3: Wheel and Belts, you will learn how to determine the number of turns and rotational direction of a given wheel.

#### A fixed pulley can only change the direction of force; a movable pulley is a basic contraption that reduces the force required to lift a load in half. It is unable to alter the force's size. Compute the mechanical advantage of the system depicted in the following figure in this regard.

In Module 4: Pulley Systems, you will learn how to compute the mechanical advantage of a combined system of pulleys.

#### Which of these claims is TRUE?

This inquiry relates to circular motion. As a result, after reviewing Module 7: Circular Motion, the problem is resolved.

#### When a liquid doubles in density and an object submerged in it half as deep, the liquid's pressure will also half.

When a liquid doubles in density and an object submerged in it half as deep, the liquid's pressure will also half.

#### If one wants to raise the load in the figure by 28 inches, how many inches does one need to draw the rope down?

There are multiple pulleys involved in this scenario. Take a look at Module 4: Pulley System to see how to solve it.