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cdc 2A551
Aerospace Ground Equipment and ACFT Systems volume 2
| Question | Answer |
|---|---|
| the maintenance stand with an adjustable height of 13 to 20 feet is the | B-2 |
| of the following, the maintenance stand that is scissor type is the | B-4 |
| the type of jack normally used to change the tire on the acft is the | axle |
| the boiling point of lox is | -297F |
| the low and high pressue capabilities as measured in pounds per square inch of the NSU-L75 nitrogen servicing unit are | 0-350; 350-3600 |
| the high pressure pump provides a hydrualic filler pressurization unit with max pressure of | 3000psi |
| the model 4000 engine trailer can support a max load of | 8000 lbs |
| the usable pressure range as measured in psi of the MC-1A air compressor is | 0-3200 |
| the MC-2A air compressor is capable of delivering air at max pressure measured in psi of | 200 |
| the H-1 heater has an adjustable heat output that ranges from | 150F to 280 F |
| the stationary skid mounted power unit that produces acft electrical power for use in shops and hangers is the | MD-4 |
| the unit capable of providing both AC and DC electrical power in addition to pneumatic power for ground maintenance is the | A/M32A-60 |
| the hydraulic systems on the MK-3A-1 hydraulic test stand are designated | no. 1 and no. 2 |
| the amount of fluid the MJ-2A reservoir holds is | 27 gallons |
| a class I MB-2 tractor weighs | 40000 lbs |
| the structural members whose chief use is to give shape to the acft and provides a means for attaching the skin to the structure are called | stringers |
| the most common type of matierial used for fuselage construction is | aluminum alloy |
| the wing components that provide strength and contour shape to the wing are the | ribs |
| the main difference between inspection plates and panels is | size |
| a cracked radome could cause | microwave distortion |
| the reference locations which are in the vertical direction measured from a reference datum that usually well below the acft are called | waterlines |
| the category of -21 equipment used for life support and crew comfort is | III |
| the effective range of a fully charged handheld fire extinguisher is | 20 ft |
| the first practical laminated composite formed was | plywood |
| a barometer is designed to measure pressure in | inches of mercury |
| atmospheric pressure at sea level is | 14.7 psi |
| the force that acts parallel to the relative wind is | drag |
| the axis that extends lengthwise through the fuselage from the nose to the tail is the | longitudinal |
| the axis that extends crosswise from wing tip to wing tip is the | lateral |
| movement about the vertical axis is called | yaw |
| the flight control located on the longitudinal control surface is the | elevator |
| the type of flight control system that allows the pilot to control the acft if hydraulic pressure is lost is | manual |
| when making a right turn the relative position of the ailerons is the right aileron | up, left aileron down |
| the flight control surfaces used to make an acft climb or dive are | elevators |
| the type of flap normally incorporated on bomber and cargo type acft is | fowler |
| acft have a trim systems to | correct minor deviations in flight attitude. |
| the law that states "the distortion of any elastic body is proportional to the distorting force" is known as | hook's law |
| when any force causes a solid to change permanently, the solid is said to have | passed the elastic limite |
| the most outstanding characteristic of a liquid is its | ability to conform to the shape of its container |
| pascal's law applies to | confined fluids at rest |
| among the first to study the compressability of gases was | Boyle |
| the person who found all gases expand and contract in direct proportion to the change in temp provided the pressure remains constant was | Charles |
| if 50 psi of cylinder pressure acts on 5-square-inch piston head the resulting forse will be | 250 lbs |
| when an 8 sq inch piston moves 5 inches within a cylinder, the volume of liquid displaced will be | 40 cubic inches |
| the principle which states that as the velocity of a gas or liquid increases, pressure decreases is | Bernoulli's |
| as fluid enters the narror portion of a venturi | it accelerates |
| when referring to hydraulic hand pumps, double-action means | fluid-flow is created with every other stroke of the pump handle |
| variable-volume pumps do not require a separate pressure regulating device in the system because | they have an integral compensator |
| cooler operation in a variable-volume hydraulic pump is provided by | creep plates |
| in the Stratopower variable-volume pump, the psitons are held in contact wiht the cam plate by the | nutating plate |
| an accumulator's piston is installed with the | hollow end toward the air side of the accumulator |
| the size fo one micron is four | millionths of an inch |
| if a filter is rated at 10 microns nominal, it | may allow some particles 10 microns or larger to get through |
| hydraulic manifolds are used in a hydraulic system to provide a location where the | common fluid lines can come together |
| the pneudraulic system components that uses single-acting actuating cylinder is the | brake assembly |
| what pneudraulic system components uses a double-acting balanced actuating cylinder | nose wheel steering |
| some acft manufacturers use the term "power control cylinders" when referring to | tandem actuators |
| the pressure at which the relief valve ball is slightly unseated is called the | cracking pressure |
| the major advantage of the manual slide-type hydraulic selector valve is its | metering ability |
| the main difference between a selector valve and a servo valve is the | servo valve is electrically operated |
| the purpose of a hydrualic system check valve is to | allow flow in only one direction |
| another name for a flapper check valve is | gate check valve |
| allowing normal operating speed of a hydraulic actuator in one direction while limiting speed in the other direction is done by the | restrictor check valve |
| the four major sections of a basic hydraulic system are | supply, pressure, return, and auxiliary |
| the basic units of a hydraulic hand pump system are the | reservoir, pump, actuator, and manuual shutoff valve |
| the reservoir supplies hydraulic fluid to the hand pump | by gravity and suction effect of the pump |
| a relief valve is installed in a varaible-volume hydraulic pump to | relieve pressure if the pump compensator fails |
| in most hydraulic subsystems, the actuating units are connected | in parallel |
| the shock strut component that controls the rate of fluid flow through the orifice is the | metering pin |
| the purpose of the torsion links on a main landing gear | prevent the inner cylinder from rotating within the outer cylinder |
| the motion of the landing gear control lever is transmitted to the selector valve | by a cable system |
| landing gear safety switches are actuated by | torsion links |
| the two most common types of shimmy dampers used in nose wheel steering are | piston and vane |
| the purpose of air brakes are | retard motion using friction |
| the purpose of deboosters is to | reduce braking pressure |
| the two types of emergency brake systems are | hydraulic and electric |
| the purpose of the antiskid system is to | prevent wheel skid by releasing pressure from the skidding wheel |
| split wheels are balanced | individually by halves |
| an airtight seal is maintained between split wheel halves by use of | o-ring seal |
| the type of bearings used on a acft wheels is | tapered roller |
| the bearing cone of an acft wheel bearing is also called the | inner race |
| the kinds of pitting that affects bearings are | corrosive and mechanical |
| the two types of brinelling are | true and false |
| an acft tire's max recommended static load is called | ply rating |
| the term "ply rating" refers to | index of tire casing strength |
| for tires 24 inches or greater outside diameter, the tire shall be removed when wear reaches the bottom of any tread groove for a continuous length of | 12 inches |
| mater is any substance that has mass | and occupies space |
| atoms are made up of | protons, neutrons, and electrons |
| electrons can be released from their outer orbit by all of the following forces except | cold |
| the greater the current flow through an electromagnet | the greater the strength |
| to determine the direction a current carrying conductor will move in a magnetic field you should use | left-hand rule for coils |
| current that periodically reverses is called | alternating |
| the term used to express a condition in which two moving objects are changing in or out of step is | phase |
| the methods used to cool brushless alternating current generators are | engine oil and blast air |
| the underspeed switch USS on the 60/80 kilovolt amper generator constant speed drive (CSD) actuates at | 365 Hz |
| the internal component of a battery that is a grid or framework which supports the active chemicals materials is the | plate |
| a 24 volt nickel cadium battery has | 19 cells |
| the component designed to convert 115/220 AC power into 28 volts or less DC to operate acft DC systems is the | transformer-rectifier |
| when measuring resistnace on a multimeter, the letters OL indicate | infinity |
| The nickel-cadmium battery | electrolyte will appear to be low when the cells are partially discharged |
Created by:
dantruo
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