Font size
WorksheetsAtmospheric Science Quiz
Total questions: 75
Worksheet time: 56mins
Which condition is the actual amount of water vapor in a mixture of air and water?
Relative humidity.
Dewpoint.
Absolute humidity.
Which is the ratio of the water vapor actually present in the atmosphere to the amount that would be present if the air were saturated at the prevailing temperature and pressure?
Absolute humidity.
Relative humidity.
Dewpoint.
The speed of sound in the atmosphere
varies according to the frequency of the sound.
changes with a change in temperature.
changes with a change in pressure.
Which atmospheric conditions will cause the true landing speed of an aircraft to be the greatest?
Low temperature with low humidity.
High temperature with low humidity.
High temperature with high humidity.
What is absolute humidity?
The temperature to which humid air must be cooled at constant pressure to become saturated.
The actual amount of the water vapor in a mixture of air and water.
The ratio of the water vapor actually present in the atmosphere to the amount that would be present if the air were saturated at the prevailing temperature and pressure.
An airplane wing is designed to produce lift resulting from
positive air pressure below and above the wing's surface along with the downward deflection of air.
positive air pressure below the wing's surface and negative air pressure above the wing's surface along with the downward deflection of air.
negative air pressure below the wing's surface and positive air pressure above the wing's surface along with the downward deflection of air.
The purpose of aircraft wing dihedral is to
increase lateral stability.
increase longitudinal stability.
increase lift coefficient of the wing.
Aspect ratio of a wing is defined as the ratio of the
wingspan to the wing root.
square of the chord to the wingspan.
wingspan to the mean chord.
A wing with a very high aspect ratio (in comparison with a low aspect ratio wing) will have
increased drag at high angles of attack.
a low stall speed.
poor control qualities at low airspeeds.
The desired effect of using winglets on an aircraft's wingtips is to
increase the lift to drag ratio.
reduce the aspect ratio.
optimize wing dihedral and improve lateral stability.
The earth’s atmosphere is composed of which of the following gases?
78% nitrogen and 21% oxygen.
78% argon and 21% oxygen.
21% nitrogen and 78% oxygen.
At sea level, the air exerts a pressure of
14.69 PSI.
7.34 PSI.
15.69 PSI.
Select from the following the standard temperature for all aerodynamic computations?
15 degrees Celsius.
59 degrees Fahrenheit.
All the above.
During flight, there are four forces acting on an airplane.
Lift, Weight, Thrust, Drag
Lift, Gravity, Thrust, Friction
Lift, Weight, Thrust, Resistance
Lift, Gravity, Thrust, Resistance
Which of the following states Bernoulli’s principle?
As the velocity of a fluid (air) increases, its internal pressure decreases.
As the velocity of a fluid (air) increases, its internal pressure increases.
As the velocity of a fluid (air) decreases, its internal pressure stays the same.
The cord line of an aircraft airfoil is an imaginary straight line drawn through an airfoil from the leading edge to the trailing edge.
True
False
The three axes of an aircraft are?
Longitudinal, vertical, and lateral.
Horizontal, left, and right.
Pitch, roll, and he-haw.
Which of the following are considered the primary flight controls of an aircraft?
Ailerons, rudder, and flaps.
Ailerons, spoilers, and flaps.
Ailerons, rudder, and elevator.
Which of the following flaps not only increases camber of the wing but also wing area?
1
2
3
4
A small low aspect ratio airfoil mounted ninety degrees to the surface of the wing, that produces a strong vortex or flow of controlled air that moves high energy air from the air stream into the boundary layer is called what?
Vortex generator.
Double wedge.
Biconvex.
Gyroscopic precession is the characteristic of all rotating bodies, which of the following defines gyroscopic precession?
When a force is applied to the outside of a rotating body, parallel to its axis of rotation, the rotating body tilts 90 degrees in the direction of rotation from the point where the force was applied.
When a force is applied nothing happens.
Which of the following controls of a helicopter controls forward, aft, left, and right movement of a helicopter in flight by changing the plane path of the main rotor blades?
Collective control.
Cyclic control.
Anti-torque peddles.
Which of the following is the state of flight where the main rotor system is being turned by the action of the wind passing through the disc, rather than engine power?
Coriolis Effect
Ground Effect
Autorotation
What power of 10 is equal to 1,000,000?
10 to the fourth power.
10 to the fifth power.
10 to the sixth power.
Find the square root of 1,746.
41.7852.
41.7752.
40.7742.
Find the square root of 3,722.1835.
61.00971.
61.00.
61.0097.
8.019.0514 x 1/81 is equal to the square root of
9,108.00
9,081.00
9,801.00
Find the cube of 64.
4
192
262,144.00
Find the value of 10 raised to the negative sixth power.
0.000001.
0.000010.
0.0001.
What is the square root of 4 raised to the fifth power?
32
64
20
The number 3.47 x 10 to the negative fourth power is equal to
.00347.
34,700.0.
.000347.
Which of the following is an example of a biplane?
Boeing 747
Wright Flyer
Airbus A380
Cessna 172
If the leading edge of the airfoil drops and the trailing edge elevates, The angle of attack ______.
Decreases
Becomes Negative
Increases
Becomes Positive
The shape of the wing, when viewed from above looking down onto the wing, is called a _______.
Airfoil
Planform.
The (a) is the angle between the cord of the wing and the relative wind.
Which part of an airplane is responsible for generating lift?
Fuselage
Wings
Tail
Engine
What is the term for the resistance an airplane faces as it moves through the air?
Lift
Drag
Thrust
Weight
What is the primary function of the ailerons on an airplane?
To control pitch
To control yaw
To control roll
To provide lift
4+(−1)=
(a)
2+(−2)=
(a)
−12+(−12)=
(a)
(a) IS 30% OF 220
(a) IS 99% OF 100
The weight of occupants, cargo, and baggage on board an aircraft.
Payload
max ramp weight
MGTW
CBW
5. Which one of these arrows best corresponds to the force of drag?
Name this flap
Plane
slotted
split
aft flap
Name this flap
Gouge flap
cord flap
fowler flap
Aspect ratio flap
what is this line called
waterline
water line
centerline
center line
What aerodynamic device is used to counter this problem
contour wing tip
winglets
What is the danger of this effect to smaller aircraft from larger aircraft
Uncontrolled roll
aircraft crash
What does a positive arm indicate in weight and balance calculations?
Weight of the equipment
Distance aft of the datum
Distance forward of the datum
Moment index
What must be done if the TCDS lists the EWCG range as 'None'?
No further checks are needed
A fore and aft check for adverse loading must be made
The aircraft must be grounded
The pilot must be notified
What is the purpose of adverse-load CG checks?
To determine the maximum payload
To calculate fuel efficiency
To verify no legal loading condition moves the CG outside allowable limits
To ensure the aircraft is within weight limits
What is indicated by an asterisk (*) in the weight and arm column?
A standard item
A required item
A complete assembly installation
An optional item
What is the significance of the leading edge mean aerodynamic chord (LEMAC) in CG calculations?
It determines the aircraft's speed
It is used to calculate the CG in percent MAC
It indicates the fuel capacity
It shows the maximum payload
What are the first steps performing a weight and balance check
refuel to full levels and check tire pressure.
What are the first steps performing a weight and balance check
Wash the aircraft
Remove all wing panels before jacking
What is the purpose of a moment index in weight and balance calculations?
To determine the aircraft's speed
To calculate the center of gravity
To measure fuel efficiency
To assess the structural integrity
What does the term 'datum' refer to in aircraft weight and balance?
The point from which all horizontal distances are measured for balance purposes
The maximum allowable weight of the aircraft
The standard fuel capacity
The location of the main landing gear
How is the center of gravity (CG) location expressed in aircraft weight and balance?
In terms of fuel consumption
As a percentage of the mean aerodynamic chord (MAC)
In pounds per square inch
As a ratio of wing span
How does a change in the aircraft's weight affect the CG location?
It has no effect on the CG location
It shifts the CG forward
It shifts the CG aft
It can shift the CG either forward or aft
What is the primary purpose of a weight and balance report?
To ensure the aircraft's speed is optimal
To verify the aircraft's structural integrity
To confirm the aircraft is within safe operational limits
To calculate the aircraft's fuel consumption
________ causes the front wheels to have increased traction, allowing them to control directional control on wet snowy runways
Select one:
Energy transformation
Weight transfer
Rotational force
None of the above
What subject dose this FAR cover FAA-H8083-1A
Corrosion Control Handbook
Jacking and Shoring
Aircraft Weight and balance
Aircraft Weight and balance adverse load checks
Which of the following is NOT an example of matter?
Water
Solids
Air
Light
Which of the following statements is true about matter?
Matter can be created
Matter can be destroyed
Matter cannot be created or destroyed
Matter does not occupy space
What is the formula for mass?
Mass = Weight × Acceleration due to gravity
Mass = Weight ÷ Acceleration due to gravity
Mass = Weight + Acceleration due to gravity
Mass = Weight - Acceleration due to gravity
What is the specific gravity of Water?
0.72
0.89
1.000
1.84
Which of the following best describes potential energy?
Energy in motion
Energy stored in an object
Energy released as heat
Energy from the sun
Torque is calculated as the product of which two quantities?
Force and Distance
Mass and Velocity
Power and Time
Energy and Work
Which of the following is a correct conversion for 1 hp?
550 ft-lbs/s
550 watts
746 ft-lbs/s
746 joules
What is the relationship between force and distance in the context of torque?
Torque is the product of force and distance.
Torque is the sum of force and distance.
Torque is the difference between force and distance.
Torque is the ratio of force to distance.
Humidity is measured with a ______.
Aisle
Central space between seats
Where you put to food to eat
The special door of the plane
The corridor to go from the gate to the plane
________________ is the weight of air molecules on objects below.
Air pressure
Wind
Humidity
Precipitation
Temperature
