Geometry Trivia Quiz
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- 1.Atmospheric pressure at sea level is
- A.
14.7
- B.
17.4
- C.
29.92
- D.
29.29
- 2.A barometer is designed to measure pressure in
- A.
Pounds per square inch
- B.
Inches of mercury
- C.
Milibars of alcohol
- D.
Ounces of air
- 3.The primary force an airfoil has to defeat is
- A.
Lift
- B.
Drag
- C.
Thrust
- D.
Weight
- 4.The force that acts upward at a right angle to the direction of the relative wind is
- A.
Lift
- B.
Drag
- C.
Thrust
- D.
Weight
- 5.The force that acts parallel to the relative wind is
- A.
Lift
- B.
Drag
- C.
Gravity
- D.
Weight
- 6.The stress that resists the force tending to cause one layer of material to slide over an adjacent layer is called
- A.
Bending
- B.
Tension
- C.
Torsion
- D.
Shear
- 7.
- A.
Fuselage
- B.
Longerons
- C.
Monocoque
- D.
Semi-monocoque
- 8.The structural member used to give shape to the aircraft and provide a means for attaching the skin to the structure are called
- A.
Longerons
- B.
Bulkheads
- C.
Stringers
- D.
Frames
- 9.The most common type of material used for fuselage construction is
- A.
Steel
- B.
Titanium
- C.
Magnesium
- D.
Aluminum alloy
- 10.The wing design used in most modern military aircraft is
- A.
Cantilever
- B.
Monocoque
- C.
External braced
- D.
Semi-monocoque
- 11.The fixed verticle surface of the empennage is called the
- A.
Stabilator
- B.
Elevator
- C.
Rudder
- D.
Fin
- 12.Engine mounts are typically made of corrosion- resistant steel is able to withstand forces of
- A.
120000 to 140000 psi
- B.
150000 to 170000 psi
- C.
180000 to 200000 psi
- D.
210000 to 230000 psi
- 13.The main difference between inspection panels and plates is
- A.
Size
- B.
Material
- C.
Location
- D.
Installation
- 14.A network of ultrafine cracks that form on or under the surface of transparent plastic is called
- A.
Crazing
- B.
Casting
- C.
Fretting
- D.
Pitting
- 15.What are the reference locations in the verticle direction measured from a reference datum that is usually well below the aircraft called
- A.
Buttlines
- B.
Waterlines
- C.
Buttock stations
- D.
Fuselage stations
- 16.Movement about the verticle axis is called
- A.
Roll
- B.
Yaw
- C.
Crab
- D.
Pitch
- 17.Which flight control surface is a longitudinal control surface?
- A.
Rudder
- B.
Aileron
- C.
Elevator
- D.
Wing flaps
- 18.
- A.
Flap
- B.
Spoiler
- C.
Rudder
- D.
Elevator
- 19.
- A.
Up, left aileron trailing edge is up
- B.
Up, left aileron trailing edge is down
- C.
Down, left aileron trailing edge is up
- D.
Down, left aileron trailing edge is down
- 20.The purpose of wing flaps is to
- A.
Increase lift and drag
- B.
Decrease lift and drag
- C.
Increase lift and decrease drag
- D.
Decrease lift and increase drag
- 21.The purpose of aircraft trim system is to
- A.
Reduce the amount of lift
- B.
Prevent the aircraft from stalling
- C.
Correct minor deviation in flight alttitude
- D.
Improve augmented lateral control surface movement
- 22.Matter is any substance that has mass and
- A.
Can be seen
- B.
Occupies space
- C.
Has constant volume
- D.
Cannot be compressed
- 23.Atoms are made up of
- A.
Molecules, protons, neutrons
- B.
Protons, molecules, electrons
- C.
Molecules, neutrons, electrons
- D.
Protons, neutrons, electrons
- 24.Electrons can be released from their outer orbit by the following forces except
- A.
Heat
- B.
Cold
- C.
Chemical action
- D.
Changing magnetic field
- 25.
- A.
Chemical swap
- B.
Crossfeed field
- C.
Electromotive force
- D.
Transferring magnetic field
- 26.If you apply 24 volts through a total resistance of 6 ohms in a series circuit, the amperage would be
- A.
2
- B.
4
- C.
6
- D.
18
- 27.A permanent magnet is produced from a material with
- A.
Low reluctance and low permeability
- B.
High reluctance and low permeability
- C.
High reluctande and high permeability
- D.
High permeabiltiy and low retentivity
- 28.
- A.
Charged
- B.
Repelled
- C.
Energized
- D.
Magnetized
- 29.The greater the current flow through an electromagnet, the
- A.
Less the strength
- B.
Greater the strength
- C.
Greater retentivity
- D.
Higher the reluctance of the core
- 30.Current flow in most aircraft circuits is controlled by
- A.
Fuses
- B.
Signals
- C.
Batteries
- D.
Switches
- 31.The majority of aircraft circuit protection devices are normally located
- A.
In the aircraft cabin
- B.
In the nose wheel well
- C.
In the utility compartments
- D.
As far as possible from the unit being protected
- 32.
- A.
Direct
- B.
Inductive
- C.
Reversing
- D.
Alternating
- 33.The methods used to cool AC generators are
- A.
Blast air and ram air
- B.
Engine oil and blast air
- C.
Blast air and generator oil
- D.
Generator oil and engine oil
- 34.The output of the csd used to drive a 60/80 kilovolt ampere generator is approximately
- A.
4,000 rpm
- B.
6,000 rpm
- C.
8,000 rpm
- D.
10,000 rpm
- 35.The USS on the 60/80 KVA generator CSD actuatesat
- A.
325 Hz
- B.
345 Hz
- C.
365 Hz
- D.
395 Hz
- 36.
- A.
Accessory gearbox
- B.
Transmission shaft
- C.
Torque converter
- D.
Hydraulic gear
- 37.A battery’s internal component that is a grid or framework which supports the active chemical materials is called the
- A.
Plate
- B.
Seperator
- C.
Electrolyte
- D.
Chemical solution
- 38.A 24-volt nickel-cadmium battery has
- A.
12 cells
- B.
19 cells
- C.
20 cells
- D.
24 cells
- 39.The nickel-cadmium battery can be fully charged only by
- A.
Pulsating current
- B.
Constant current
- C.
Varying current
- D.
Eddy current
- 40.
- A.
Shunt
- B.
Circuit
- C.
Universal
- D.
Compound
- 41.A shunt type motor has
- A.
Less speed regulation than a universal motor
- B.
A field winding in a series with the armature
- C.
Low starting torque and good speed regulation
- D.
High starting torque and poor speed regulation
- 42.The three states of matter are
- A.
Liquids, gases, and minerals
- B.
Gases, solids, and minerals
- C.
Gases, solids, and organic
- D.
Liquids, gases, and solids
- 43.
- A.
Passed the elastic limit
- B.
Lost the ability to expand
- C.
Failed to meet elastic limit.
- D.
Passed the compression limit
- 44.The most outstanding characteristic of a liquid is its
- A.
Rigidity
- B.
Usability
- C.
Ability to compress within its container
- D.
Ability to conform to the shape of its container
- 45.
- A.
Relief valve in the lines
- B.
Piston pushing the fluid
- C.
Scupper pushing the fluid
- D.
Selector valve in the lines
- 46.
- A.
Hook.
- B.
Boyle.
- C.
Pascal
- D.
Charles
- 47.If 50 pounds per square inch (psi) of cylinder pressure acts on a 5-square-inch piston head, what will the resulting force be?
- A.
150 pounds.
- B.
200 pounds
- C.
250 pounds
- D.
300 pounds
- 48.
- A.
4 cubic inches
- B.
40 cubic inches
- C.
400 cubic inches
- D.
4,000 cubic inches
- 49.Turbulence affects fluid-flow in a hydraulic line by
- A.
Increasing velocity and viscosity.
- B.
Increasing volume and displacement
- C.
Creating resistance and loss of energy
- D.
Creating resistance and energy increase.
- 50.A tube whose cross-section area is gradually reduced to a smaller size diameter is called a
- A.
Torus
- B.
Pipette.
- C.
Vortex.
- D.
Venturi.
- 51.The purposes of a hydraulic reservoir are to
- A.
Store fluid and act as a surge chamber.
- B.
Restrict fluid-flow in selected directions
- C.
Pressurize and direct fluid to an actuator.
- D.
Replenish fluid, allow for thermal expansion, and provide a means of bleeding air from the system
- 52.The purpose of a standpipe in a reservoir is to
- A.
Protect the pump.
- B.
Reserve fluid for the power pump
- C.
Reserve fluid for the emergency pump
- D.
Supply the pump during inverted flight.
- 53.The amount of fluid a pump produces on each cycle or revolution is called its
- A.
Displacement.
- B.
Purgement.
- C.
Volume.
- D.
Rating.
- 54.
- A.
Fluid-flow is created with each stroke of the pump handle
- B.
Fluid-flow is created with every other stroke of the pump handle
- C.
Double volume is displaced with each stroke of the pump handle
- D.
Double volume is displaced with every other stroke of the pump handle
- 55.Variable-volume pumps do not require a separate pressure-regulating device in the system because
- A.
They deliver low pressure
- B.
They have an integral compensator
- C.
The case drain relieves high system pressure
- D.
There is no angle between the drive shaft and cylinder block
- 56.
- A.
Foot valves.
- B.
Oil radiator
- C.
Creep plates.
- D.
Fluid radiator.
- 57.In the Stratopower variable-volume pump, what holds the pistons in contact with the cam plate?
- A.
Fixed pivot.
- B.
Nutating plate.
- C.
Stationary bearing
- D.
Compensator piston
- 58.The purpose of a hydraulic motor is to convert hydraulic pressure into
- A.
Rotary mechanical motion
- B.
Kinetic flow motion.
- C.
Straight-line motion.
- D.
Fluid locomotion.
- 59.
- A.
In either direction
- B.
Hollow end toward the air side of the accumulator.
- C.
Hollow end toward the fluid side of the accumulator.
- D.
Drilled passage toward the air side of the accumulator
- 60.The size of one micron is four
- A.
Tenths of an inch
- B.
Thousandths of an inch.
- C.
Millionths of an inch.
- D.
Billionths of an inch.
- 61.In a hydraulic system, the hydraulic manifold provides a location where the
- A.
Return lines can join together
- B.
Pressure lines can join together
- C.
Common fluid lines can come together
- D.
Hydraulic test stand can be connected
- 62.The purpose of an actuating cylinder is to transform fluid pressure into
- A.
Angular motion
- B.
A mechanical force
- C.
A constant velocity
- D.
An electromotive force
- 63.
- A.
Rudder.
- B.
Cargo door.
- C.
Brake assembly
- D.
Nosewheel steering.
- 64.
- A.
Speed brake.
- B.
Brake assembly
- C.
Cargo door system
- D.
Nosewheel steering
- 65.
- A.
Tandem
- B.
Internal locking
- C.
Internal snubber
- D.
Double-acting balanced
- 66.A manual poppet-type selector valve is in a working position when the camshaft is rotated to
- A.
Seat all four of the poppets.
- B.
Unseat all four of the poppets
- C.
Seat both of the pressure poppets
- D.
Unseat one pressure poppet and one return poppet
- 67.The major advantage of the manual slide-type hydraulic selector valve is its
- A.
Damping ability.
- B.
Metering ability.
- C.
Ability to contain system pressure
- D.
Ability to relieve excess system pressure
- 68.Normally, what positions hydraulic selector valves?
- A.
Bus.
- B.
Servos
- C.
Relays
- D.
Solenoid
- 69.The advantage of an electrically controlled solenoid valve is its
- A.
Reduced weight.
- B.
Increased weight
- C.
Ability to reduce turbulence
- D.
Ability to increase turbulence
- 70.The difference between a selector valve and a servo valve is that the
- A.
Selector valve has four ports.
- B.
Selector valve is more complex
- C.
Servo valve controls fluid-flow
- D.
Servo valve is electrically operated
- 71.Another name for a flapper check valve is
- A.
Ball check valve
- B.
Gate check valve.
- C.
Cone check valve
- D.
Restrictor check valve
- 72.
- A.
Show filter position within the system
- B.
Indicate left- and right-hand threading
- C.
Show the direction of free flow through the valve.
- D.
Indicate installation points in relation to the pump
- 73.
- A.
Automatic check valve.
- B.
Restrictor check valve
- C.
Bypass valve.
- D.
Relief valve.
- 74.
- A.
Pump, actuator, filter, and priority valve
- B.
Pump, actuator, shutoff, and metering valve
- C.
Reservoir, pump, actuator, and metering valve
- D.
Reservoir, pump, actuator, and manual shutoff valve.
- 75.The reservoir supplies hydraulic fluid to a hand pump
- A.
By gravity.
- B.
By the suction effect of the pump.
- C.
By gravity and the suction effect of the pump
- D.
In response to pressure demand and the suction effect of the pump.
- 76.
- A.
Stops
- B.
Increases.
- C.
Decreases
- D.
Remains the same.
- 77.The purpose of the torsion links on a main landing gear is to
- A.
Reduce oscillation during extension
- B.
Reduce oscillation during retraction
- C.
Allow the inner cylinder to rotate within the outer cylinder
- D.
Prevent the inner cylinder from rotating within the outer cylinder
- 78.
- A.
Electrically.
- B.
By push-pull rods
- C.
By a cable system.
- D.
Through hydraulic pressure
- 79.
- A.
Safety relay
- B.
Safety switch.
- C.
Centering relay.
- D.
Centering switch.
- 80.Electromagnetic devices capable of sensing magnetically conducive metal targets on landing gears are known as
- A.
Position switches.
- B.
Proximity sensors.
- C.
Selector valves
- D.
Solenoid circuits
- 81.A unit that is a combination of the landing gear shimmy damper and steering unit is known as
- A.
A steer damper
- B.
An uplock control
- C.
A downlock control
- D.
A servo oscillating damper
- 82.
- A.
Up
- B.
Dn
- C.
Aux
- D.
Emerg
- 83.
- A.
Dampening unit.
- B.
Inline restrictor
- C.
Orifice check valve
- D.
Snubbing mechanism
- 84.The purpose of the landing gear warning horn is to
- A.
Alert the pilot to marker beacons.
- B.
Sound when gear is not safe
- C.
Sound when gear is safe.
- D.
Alert the pilot to a stall
- 85.Brake fade is defined as a gradual braking action
- A.
Loss due to overheating
- B.
Increase due to overheating
- C.
Loss due to pressure increase
- D.
Increase due to pressure reduction
- 86.A major disadvantage of multiple disc brakes is that they
- A.
Warp when overheated
- B.
Shatter during hard landings
- C.
Must be adjusted after each landing
- D.
Do not provide maximum stopping grip.
- 87.
- A.
Rotors
- B.
Stators.
- C.
Actuators
- D.
Adjusters
- 88.The purpose of the antiskid system is to
- A.
Reduce friction between the wheel and tire.
- B.
Increase friction between the wheel and tire
- C.
Prevent wheel skid by applying pressure to the skidding wheel
- D.
Prevent wheel skid by releasing pressure from the skidding wheel.
- 89.The purpose of deboosters is to
- A.
Decrease fluid volume
- B.
Reduce braking pressure.
- C.
Enlarge running clearance
- D.
Increase braking pressure
- 90.Aircraft wheels are normally constructed of
- A.
Steel and/or titanium alloys
- B.
Chromium and/or titanium alloys
- C.
Paladium and/or aluminum alloys
- D.
Magnesium and/or aluminum alloys
- 91.Split wheels are balanced
- A.
During buildup
- B.
As an assembly
- C.
Individually by halves
- D.
By a self-balancing system
- 92.
- A.
A rubber liner.
- B.
An O-ring seal.
- C.
A phenolic ring.
- D.
Machined mated surfaces
- 93.
- A.
Vent holes.
- B.
Blowout caps.
- C.
Wheel valve stems
- D.
Thermal relief plugs
- 94.
- A.
Flat roller
- B.
Straight ball.
- C.
Tapered roller
- D.
Recessed cone
- 95.The bearing cone of an aircraft wheel bearing is also called the
- A.
Outer race.
- B.
Inner race.
- C.
Bearing cup.
- D.
Roller mount
- 96.
- A.
A fiber brush
- B.
A wire brush
- C.
Clean rags
- D.
Fiber pads.
- 97.Installed bearing races should be free of scratches, dents, and
- A.
Dye marks
- B.
Paint marks.
- C.
Blister marks
- D.
Overheating marks
- 98.The main parts of an aircraft tire are the tread and sidewall
- A.
Cord body, and beads
- B.
Valve core, and beads.
- C.
Cord body, vent holes
- D.
Valve core, and cord body.
- 99.
- A.
Beads
- B.
Sidewalls.
- C.
Vent holes
- D.
Blow out valves
- 100.For tires 24 inches or greater outside diameter, the tire must be removed when wear reaches the bottom of any tread groove for a continuous length of
- A.
4 inches
- B.
6 inches
- C.
12 inches
- D.
16 inches
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