During routine service work, mechanics inspect, adjust, and replace vehicle parts. (The battery terminal has square bolts.) Relevance. One of the most versatile and interesting careers is commercial and residential HVAC (heating, ventilation, and air conditioning). Even the tires on the vehicle are inflated to a certain PSI, which is a mathematical equation in itself. Auto Mechanics use math in all kinds of ways... such as: Ratios, they use ratios when it comes to gears and weight. They also have to deal with two different numeric systems: metric and American (sometimes called British). The Recommended High School Classes for a Marine Engineer . It is even possible to have bolts that are 3/4, 1/2 or 9/16 inch in size. It really is not that difficult to comprehend, especially once you get some hands-on experience. Fluid mechanics is very math-intensive and requires an understanding of calculus and linear algebra. They work on engines, drive belts, transmissions, and electronic systems such as steering, brakes, and accident-avoidance systems. Just remember that a different set of tools is needed to work on each type of car. A List of Careers That Use Algebra. The Mechanics A-Level revision section of Revision Maths covers: Modelling, Acceleration, Newton's Laws, Vectors, Using Newton's Laws, Moments, Impulse and Momentum, Coefficient of Friction, Projectiles, Work, Energy & Power, Newton's Law of Restitution, Centre of Mass, Toppling, Elastic Strings, Simple Harmonic Motion, Motion in a Circle and Motion in a Vertical Circle. Derek Odom has freelanced since 2008 and is also an author of the macabre. The first and probably most obvious use of mechanic’s math is in the area of fractions. For instance, an engine idling at 600 rpm will need X amount of fuel and oil and coolant, whereas an engine racing along at 3,000 rpm will need much more, but still a specific amount. Diesel mechanics work with liquid engine components, so they need to be able to perform basic unit conversions like metric to imperial. Cashiers use basic maths, arithmetic to apply discount coupons, collect money from the customer, and giving back the correct amount of change to the customer. This process usually involves analysis of current parts, awareness of desired goals and performance standards, and use of both math and creativity to design a better part that fits within the construct of the car's engine. Numbers also come into play in many other ways, such as calculating torque, engine size and displacement, horsepower and firing sequence. In auto mechanics, this is a common occurrence, as most bolts that go into the making of a modern engine average around 1/2 inch to 5/8 inch. This is also called engine displacement. Fuel delivery systems such as fuel injection require mathematical precision in order to maintain the correct pressure and flow throughout the rpm (revolutions per minute) range. Mechanics must be quick and accurate when they are diagnosing mechanical problems. Without math, programmers wouldn’t be able to make objects in the game do even the simplest of things, including movement. If you have a bolt with a head that is less than 1cm, which is a common occurrence, instead of using a fraction to designate the size, you merely go to the next level, which is measured in millimeters. How Do Auto Mechanics Use Math? Economics. Being weak at math shouldn't really hurt you too much. Favourite answer. The water pump must flow a certain amount for each rpm, and the radiator must have a capacity that matches the needs of the engine throughout different weathers and loads--all these answers are reached using math. 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