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Jeppesen A&P General_ Oral exam (CCC).
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Jeppesen A&P General: Oral exam (CCC)Describe the result of adding a large positive number and a smaller negative
number - CORRECT ANSWER-result is smaller positive number, same as
ignoring the signs and subtracting smaller number
How do you convert a fraction into a decimal? - CORRECT ANSWER-Divide the
top number by bottom number
What is the key step in order to add or subtract unlike fractions - CORRECT
ANSWER-finding the lowest common denominator
How do you divide one fraction by another - CORRECT ANSWER-Invert divisor
(flip over the second fraction) and multiply both numerators and denominators
(top and bottom numbers)
How can you convert a decimal into a percent - CORRECT ANSWER-Multiply
decimal by 100 and add % sign, or move decimal TWO places to the RIGHT and
add %
How do you convert a fraction to a percent - CORRECT ANSWER-Convert to
decimal, move decimal two places to the right, add %
How do you change a decimal to nearest equivalent fraction - CORRECT
ANSWER-Multiply decimal by desired denominator, result becomes numerator of
fraction (try to get closest to whole number)
Two different ways a ratio can be expressed? - CORRECT ANSWER-1- as a
fraction
2- placing a colon between the numbers (5:54)
3- using the word "to" between the numbers
What is a proportion? - CORRECT ANSWER-a statement of equality (=) between
two or more ratios: 1/2 = 4/8, 45/90 = x/100
,What is meant by the root of a number? - CORRECT ANSWER-A root is two or
more equal smaller numbers that when multiplied equal the specified number:
the second (square) root of 9 is 3, the fifth root of 32 is 2
How do you find the square of a number? Give an example. - CORRECT
ANSWER-multiply the number times itself- 4 X 4=16, 10 X 10= 100
What is a common method of making computations involving very large or very
small numbers more manageable? - CORRECT ANSWER-Convert the numbers
into scientific notation by using powers of 10. (7,234,000= 7.234 X 10^6)
How is 100,000 expressed as a power of 10? - CORRECT ANSWER-10 to the
fifth
what formula is used to find the area of a rectangle? - CORRECT
ANSWER-A=L(length) X W(width)
Area of a triangle? - CORRECT ANSWER-1/2 X B (base) X H (height)
Define Pi - CORRECT ANSWER-A constant that expresses the relationship
between circumference and diameter of a circle, approximately 3.14159 (number
of times the diameter goes into the circumference)
Describe a trapezoid - CORRECT 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 the area of a circle? - CORRECT ANSWER-A = Pi X
Radius squared (radius is half diameter)
Define matter - CORRECT ANSWER-Any substance that occupies space and
has mass
Name three states of matter - CORRECT ANSWER-Solid, Liquid, gas
Define kinetic energy - CORRECT ANSWER-the energy of motion
, Work is the product of what two factors? - CORRECT ANSWER-Force and
distance moved (W = F X D)
What are the parts of a lever: - CORRECT ANSWER-A rigid bar and a pivot point
called the fulcrum
A wheelbarrow is what class of lever? - CORRECT ANSWER-second class (first
class: see-saw, third class: tweezers)
Are all three states of matter affected by thermal expansion? If so, which is
affected most? - CORRECT ANSWER-All three are affected, gases are affected
the most
What is a British Thermal Unit? - CORRECT ANSWER-The amount of heat
energy required to change the temperature of 1 pound of water 1 degree
Fahrenheit
Three methods of heat transfer? - CORRECT ANSWER-Conduction, convection,
radiation
What term defines the temperature at which all molecular activity stops? -
CORRECT ANSWER-Absolute zero
Can liquids be compressed? - CORRECT ANSWER-No, liquids are generally
considered incompressible
What are the units used to express hydraulic or pneumatic pressure - CORRECT
ANSWER-Pounds per square inch (PSI)
Describe how pressure is transmitted when a force is applied to a confined liquid
- CORRECT ANSWER-Pressure is transmitted equally in all directions
What formula expresses the relationship between force, pressure, and area -
CORRECT ANSWER-Force = Area X Pressure (F over A I P)
What is the approximate speed of sound at sea level on a standard day? -
CORRECT ANSWER-661 knots or 340 meters per second
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