Mathematics

Question 1

What formula is used to find the area of a circle?

Answer 1

A=πɼ²

Question 2

What formula is sued to find the area of a rectangle?

Answer 2

A=LW

Question 3

What formula is used to find the area of the area of a triangle?

Answer 3

A=(BxH)/2

Question 4

What formula is used to find the volume of a cylinder?

Answer 4

V=πɼ²h

Question 5

What formula is used to find the volume of a rectangular solid?

Answer 5

V=LWH

Question 6

What is meant by the root of a number?

Answer 6

The root of a number is one of two or more equal numbers that, when multiplied together, will produce the number.

Question 7

What is an angle?

Answer 7

A figure formed by two lines radiating from a common point.

Question 8

What is an acute angle?

Answer 8

An angle between 0° and 90°.

Question 9

What is a quadrant?

Answer 9

One fourth of a circle.

Question 10

What is a sector?

Answer 10

The portion of a circle bounded by two radii and on of the intercepted arcs.

Question 11

What is an obtuse angle?

Answer 11

An angle greater than 90° but less than a straight line.

Question 12

What is meant by a right angle?

Answer 12

An angle of 90°.

Question 13

What is a polygon?

Answer 13

A closed figure having three or more sides.

Question 14

What is an acute triangle?

Answer 14

A triangle with three acute angles

Question 15

What is an obtuse triangle?

Answer 15

A triangle with one obtuse angle.

Question 16

What is a right triangle?

Answer 16

A triangle containing a 90° angle.

Question 17

What is an equilateral traingle?

Answer 17

A triangle with three equal sides.

Question 18

What is an isosceles triangle?

Answer 18

A triangle with two equal sides.

Question 19

What is a scalene triangle?

Answer 19

A triangle in which no two sides are equal.

Question 20

What is the hypotenuse of a right triangle?

Answer 20

The opposite the right angle.

Question 21

What is a quadrilateral?

Answer 21

A polygon having four sides.

Question 22

What is a parallelogram?

Answer 22

A closed four-sided in which the opposite sides are parallel.

Question 23

What is a trapezoid?

Answer 23

A closed four-sided figure in which only one pair of opposite side are parallel.

Question 24

What is a hexagon?

Answer 24

A closed figure with six equal sides.

Question 25

What is the significance of the constant π?

Answer 25

Pi is the constant amount the circumference of a circle is greater than its diameter.

Question 26

What is the value of the constant π?

Answer 26

π=3.1416

Question 27

What is meant by a proportion?

Answer 27

A statement of equality between two ratios.

Question 28

What is meant by a percentage?

Answer 28

A fraction having 100 and the denominator.

Question 29

What is meant by scientific notation?

Answer 29

A method of writing very large or very small numbers using powers of 10.

Question 30

What are the risks associated with incorrectly applying the precedence of operations when solving algebraic equations?

Answer 30

Incorrectly solving algebraic equations can have serious consequences. One example is incorrectly computing the center of gravity (CG) after weighing an aircraft. An incorrectly computed CG could lead to a catastrophic outcome if the aircraft is loaded outside of the actual allowable limits.

Question 31

What are the dangers of incorrectly applying the rules of adding and subtracting positive and negative integers?

Answer 31

When installing and removing equipment from an airplane, it is important that the calculations are correct. Components may be either ahead or behind the datum and thus the moments can be either positive or negative. Incorrectly applying the rules of positive and negative integers will cause the stated weight and balance of the airplane to be incorrect.

Question 32

What are the dangers of incorrectly rounding off calculations?

Answer 32

Rounding off calculations too far or incorrectly can lead to many dangerous situations. This can result in replacement wires that are to small, switches and circuit breakers that are not rated sufficiently for the load of the circuit, incorrectly sized alternators, and many other dangerous situations.