Geometry Trivia Quiz

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Geometry Trivia Quiz

Questions and Answers
  • 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