A&P - General Oral Exam (Jeppesen)
Describe the result of adding a large positive number and a smaller negative
number. - CORRECT ANSWER-The result is a smaller positive number.
How do you convert a fraction into a decimal? - CORRECT ANSWER-Divide the
numerator by the denominator.
What is the key step that must be performed in order to add or subtract unlike
fractions? - CORRECT ANSWER-Find the lowest common denominator.
How do you divide one fraction by another? - CORRECT ANSWER-Invert the
divisor and multiply.
How can you convert a decimal into a percent? - CORRECT ANSWER-Multiply
by 100 and add the % sign.
How do you convert a fraction into a percent? - CORRECT ANSWER-Convert
into a decimal and then multiply by 100 and adding the % sign.
How do you change a decimal into the nearest equivalent fraction? - CORRECT
ANSWER-Multiply by the desired denominator to get the numerator.
What are two different ways that a ratio may be expressed? - CORRECT
ANSWER-1. As a fraction
2. By placing a colon (:) between the two numbers
3. Use the word "to" between the two numbers.
What is a proportion? - CORRECT ANSWER-A statement of equality between
two or more ratios.
What is meant by the root of the number? - CORRECT ANSWER-A smaller
number that when multiplied by itself two or more times results in the specified
number.
How do you find the square of a number? - CORRECT ANSWER-Multiply the
number by itself.
,What is the common method of making computations involving very large or very
small numbers more manageable? - CORRECT ANSWER-Convert into scientific
notation using powers of 10.
How is 100,000 expressed as a power of 10? - CORRECT ANSWER-10 to the
5th power.
What formula is used to find the area of a rectangle and a triangle? - CORRECT
ANSWER-Rectangle = L x W
Triangle = 1/2 (B x H)
Define Pi. - CORRECT ANSWER-Pi is a constant that defines the relationship
between the circumference and the diameter of a circle. Approximately equal to
3.1416
Describe a trapezoid. - CORRECT ANSWER-A trapezoid is a closed, four sided
figure with two parallel sides.
What is the formula for computing the area of a circle? - CORRECT ANSWER-Pi
(r x r). Pi R squared!
Define matter. - CORRECT ANSWER-Anything that occupies space and has
mass.
Matter may exist in what three states? - CORRECT ANSWER-Solid, liquid, and
gas.
Define kinetic energy? - CORRECT ANSWER-Energy of motion.
Work is the product of what two factors? - CORRECT ANSWER-Force and
distance moved.
What are the parts of a lever? - CORRECT ANSWER-A rigid bar and a pivot
point called the fulcrum.
,A wheelbarrow is a example of what class of lever? - CORRECT ANSWER-A
second-class lever.
Are all three states of matter affected by thermal expansion and if so, which state
is affected most? - CORRECT ANSWER-All three states are affected, with gas
being affected the most.
What is a British Thermal Unit? - CORRECT ANSWER-The amount of heat
energy required to change the temp of 1 pound of water 1 degree Fahrenheit.
Name the three methods of heat transfer? - CORRECT ANSWER-Conduction,
convection and radiation.
What term defines the temperature at which all molecular motion ceases? -
CORRECT ANSWER-Absolute zero.
Can liquids be compressed? - CORRECT ANSWER-No, liquids are generally
considered incompressible.
What are the customary units used to express hydraulic or pneumatic pressure in
the U.S.? - CORRECT ANSWER-Pounds per square inch
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 expressed the relationship between force, pressure and area? -
CORRECT ANSWER-Force equals area times pressure.
What is the approximate speed of sound at sea level on a standard day? -
CORRECT ANSWER-661 knots or 340 meters per second.
What is the atmospheric pressure at sea level on a standard day? - CORRECT
ANSWER-29.92 inches of Mercury or 1013.2 millibars.
On a standard day at sea level, what is the value for temperature? - CORRECT
ANSWER-59 deg. F or 15 deg. C
, What are the factors that determine density altitude? - CORRECT
ANSWER-Temperature and atmospheric pressure.
What is the term to describe the ratio between the amount of moisture actually
present in the atmosphere as compared to the amount the air could hold if it were
completely saturated? - CORRECT ANSWER-Relative humidity.
What are the four principle forces acting on an airplane in flight? - CORRECT
ANSWER-Lift, drag, thrust, and gravity.
What is the term that describes the angle between the relative wind and the
chord line of airfoil? - CORRECT ANSWER-The Angle of Attack (AOA).
What are the factors that cause the airplane wing to stall? - CORRECT
ANSWER-Stall is caused when the angle of attack exceeds a critical value and
the airflow separates from the upper surface and becomes turbulent.
What are the principle effects that result from lowering the flaps while in flight? -
CORRECT ANSWER-Lift increases, drag increases, and stall speed decreases.
What is the function of a wing mounted vortex generator? - CORRECT
ANSWER-Vortex generators delay or keep the airflow from separating from the
upper surface of a wing during high speed flight.
How does blade flapping help to compensate for dissymmetry of lift in helicopter
main rotor systems? - CORRECT ANSWER-Flapping increases the angle of
attack and lift on the retreating blade and decreases the angle of attack and lift
on the advancing blade.
How does the airflow through the main rotor of a helicopter change during the
transition from normal flight to autorotation? - CORRECT ANSWER-During
normal flight the air moves downward and during autorotation the air moves
upward.
What is friction? - CORRECT ANSWER-The opposition to relative motion
between two objects in contact with each other.
Describe the result of adding a large positive number and a smaller negative
number. - CORRECT ANSWER-The result is a smaller positive number.
How do you convert a fraction into a decimal? - CORRECT ANSWER-Divide the
numerator by the denominator.
What is the key step that must be performed in order to add or subtract unlike
fractions? - CORRECT ANSWER-Find the lowest common denominator.
How do you divide one fraction by another? - CORRECT ANSWER-Invert the
divisor and multiply.
How can you convert a decimal into a percent? - CORRECT ANSWER-Multiply
by 100 and add the % sign.
How do you convert a fraction into a percent? - CORRECT ANSWER-Convert
into a decimal and then multiply by 100 and adding the % sign.
How do you change a decimal into the nearest equivalent fraction? - CORRECT
ANSWER-Multiply by the desired denominator to get the numerator.
What are two different ways that a ratio may be expressed? - CORRECT
ANSWER-1. As a fraction
2. By placing a colon (:) between the two numbers
3. Use the word "to" between the two numbers.
What is a proportion? - CORRECT ANSWER-A statement of equality between
two or more ratios.
What is meant by the root of the number? - CORRECT ANSWER-A smaller
number that when multiplied by itself two or more times results in the specified
number.
How do you find the square of a number? - CORRECT ANSWER-Multiply the
number by itself.
,What is the common method of making computations involving very large or very
small numbers more manageable? - CORRECT ANSWER-Convert into scientific
notation using powers of 10.
How is 100,000 expressed as a power of 10? - CORRECT ANSWER-10 to the
5th power.
What formula is used to find the area of a rectangle and a triangle? - CORRECT
ANSWER-Rectangle = L x W
Triangle = 1/2 (B x H)
Define Pi. - CORRECT ANSWER-Pi is a constant that defines the relationship
between the circumference and the diameter of a circle. Approximately equal to
3.1416
Describe a trapezoid. - CORRECT ANSWER-A trapezoid is a closed, four sided
figure with two parallel sides.
What is the formula for computing the area of a circle? - CORRECT ANSWER-Pi
(r x r). Pi R squared!
Define matter. - CORRECT ANSWER-Anything that occupies space and has
mass.
Matter may exist in what three states? - CORRECT ANSWER-Solid, liquid, and
gas.
Define kinetic energy? - CORRECT ANSWER-Energy of motion.
Work is the product of what two factors? - CORRECT ANSWER-Force and
distance moved.
What are the parts of a lever? - CORRECT ANSWER-A rigid bar and a pivot
point called the fulcrum.
,A wheelbarrow is a example of what class of lever? - CORRECT ANSWER-A
second-class lever.
Are all three states of matter affected by thermal expansion and if so, which state
is affected most? - CORRECT ANSWER-All three states are affected, with gas
being affected the most.
What is a British Thermal Unit? - CORRECT ANSWER-The amount of heat
energy required to change the temp of 1 pound of water 1 degree Fahrenheit.
Name the three methods of heat transfer? - CORRECT ANSWER-Conduction,
convection and radiation.
What term defines the temperature at which all molecular motion ceases? -
CORRECT ANSWER-Absolute zero.
Can liquids be compressed? - CORRECT ANSWER-No, liquids are generally
considered incompressible.
What are the customary units used to express hydraulic or pneumatic pressure in
the U.S.? - CORRECT ANSWER-Pounds per square inch
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 expressed the relationship between force, pressure and area? -
CORRECT ANSWER-Force equals area times pressure.
What is the approximate speed of sound at sea level on a standard day? -
CORRECT ANSWER-661 knots or 340 meters per second.
What is the atmospheric pressure at sea level on a standard day? - CORRECT
ANSWER-29.92 inches of Mercury or 1013.2 millibars.
On a standard day at sea level, what is the value for temperature? - CORRECT
ANSWER-59 deg. F or 15 deg. C
, What are the factors that determine density altitude? - CORRECT
ANSWER-Temperature and atmospheric pressure.
What is the term to describe the ratio between the amount of moisture actually
present in the atmosphere as compared to the amount the air could hold if it were
completely saturated? - CORRECT ANSWER-Relative humidity.
What are the four principle forces acting on an airplane in flight? - CORRECT
ANSWER-Lift, drag, thrust, and gravity.
What is the term that describes the angle between the relative wind and the
chord line of airfoil? - CORRECT ANSWER-The Angle of Attack (AOA).
What are the factors that cause the airplane wing to stall? - CORRECT
ANSWER-Stall is caused when the angle of attack exceeds a critical value and
the airflow separates from the upper surface and becomes turbulent.
What are the principle effects that result from lowering the flaps while in flight? -
CORRECT ANSWER-Lift increases, drag increases, and stall speed decreases.
What is the function of a wing mounted vortex generator? - CORRECT
ANSWER-Vortex generators delay or keep the airflow from separating from the
upper surface of a wing during high speed flight.
How does blade flapping help to compensate for dissymmetry of lift in helicopter
main rotor systems? - CORRECT ANSWER-Flapping increases the angle of
attack and lift on the retreating blade and decreases the angle of attack and lift
on the advancing blade.
How does the airflow through the main rotor of a helicopter change during the
transition from normal flight to autorotation? - CORRECT ANSWER-During
normal flight the air moves downward and during autorotation the air moves
upward.
What is friction? - CORRECT ANSWER-The opposition to relative motion
between two objects in contact with each other.
