FAA GENERAL ORAL ACTUAL EXAM 250 QUESTIONS AND WELL ELABORATED ANSWERS 2023 -2024 UPDATE ALREADY A GRADED|BRAND NEW!!{REVISED} Describe the result of adding a large positive number and a smaller negative number. - ANSWER - The result is a smaller positive number, and is the same as ignoring the signs and subtracting the smaller number from the larger. How do you convert a fraction into a decimal? - ANSWER - Divide the top number (Numerator) by the bottom number (denominator). What is the key step that must be performed in order to add or subtract unlike fractions? - ANSWER - You must find the lowest (Least) common denominat or. How do you divide one fraction by another? - ANSWER - You invert the divisor and multiply the numerators together and the denominators together. How can you convert a decimal into a percent? - ANSWER - (1) Multiply the decimal by 100 and add the percen t sign. (2) Move the decimal point two places to the right and add the percent sign. How do you convert a fraction into a percent? - ANSWER - Convert it to a decimal, move the decimal point two places to the right and add the percent sign How do you chang e a decimal into the nearest equivalent fraction? - ANSWER - Multiply the decimal by the desired denominator. The result becomes the numerator in the traction . What are two different ways that a ratio may be expressed? - ANSWER - (1) As a fraction. (2) By p lacing a colon (s) between the two numbers. (3) By using the word '10" between the two numbers What is a proportion? - ANSWER - — A statement of equality between two or more ratios. What is meant by the root of a number? - ANSWER - A root is two or more equal smaller numbers that, when multiplied together, equal the specified number. How do you find the square of a number? Give an example. - ANSWER - Multiply the number by itself Examp les: 4 X 4 =16, 7 X 7 =49 What is a common method of making computations involving very large or very small numbers more manageable? - ANSWER - Convert the numbers into scientific notation by using powers of 10. How is 100.000 expressed as a power of 10? - ANSWER - 10^5 (10 to the 5'" power). What formula is used to find the area of a rectangle and of a triangle? - ANSWER - For a rectangle, A = L X W. For a triangle, A = 1/2(B X H). Define Pi (π) - ANSWER - Pi is a constant that expresses the relationship between the gigozngterence of a circle and its diameter and is approximately equal to Describe a trapezoid. - ANSWER - A trapezoid is a closed, four -sided figure having two parallel sides and two sides that are not parallel. What is the formula for compu ting the area of a circle? - ANSWER - A=πr^2 Define matter. - ANSWER - Any substance that occupies space and has mass. Matter may exist in what three states? - ANSWER - Solid, liquid, gas, (Plasma). Define kinetic energy. - ANSWER - Kinetic energy is the en ergy of motion, Work is the product of what two factors? - ANSWER - Force and the distance moved, What are the parts of a lever? - ANSWER - A rigid bar and a pivot point called the fulcrum. A wheelbarrow is an example of what class of lever? - ANSWER - A second -class lever. Are all three states of matter affected by thermal expansion and if so, which state is affected most? - ANSWER - All three states are affected, with gases being affected the most. What is a British Thermal Unit? - ANSWER - The amount of heat energy required to change the temperature of 1 pound of water 1 degree Fahrenheit. Name the three methods of heat transfer? - ANSWER - Conduction, convection and radiation. What term de fines the temperature at which all molecular motion ceases? - ANSWER - Absolute zero. Can liquids be compressed? - ANSWER - No, liquids are generally considered incompressihle. What are the customary units used to express hydraulic or pneumatic pressure in the United States? - ANSWER - Pounds per square inch (PSI) Describe how pressure is transmitted when a force is applied to a confined liquid. - ANSWER - Pressure is transmitted equally in all directions, What formula expresses the relationship between for ce, pressure and area? - ANSWER - Force equals area times pressure
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