What is the most important law applicable to the study of electricity?
Ohm's Law (E=I*R) (Voltage = Amps*Resistance)
100
Define "clearance" as used in aircraft drawings.
Clearance is the dimensions given for fits between moving parts.
100
What is the purpose of weight and balance control?
Safety and efficiency in flight.
100
What are aircraft plumbing lines usually made of?
Metal tubing and fittings, or flexible hose.
100
What is a suitable nondestructive method for detecting surface cracks in aluminum castings and forgings?
The dye penetrant inspection method detects surface cracks with equal success on aluminum, magnesium, brass, copper, and titanium. It can also be used on ceramics, plastics, and glass.
200
What are the elements of Ohm's Law?
Voltage (E), current (I), and resistance (R).
200
How can a change to an aircraft drawing be identified?
They are usually listed in columns, either next to the title block or at one corner of the drawing
200
What is meant by "residual" fuel?
It is the fuel remaining in the tanks, lines, and engine after draining. Also called "undrainable" or "unusable," it is part of the aircraft's empty weight.
200
How is metal tubing sized?
By outside diameter which is measured fractionally in sixteenths of an inch, and by wall thickness measured in thousandths.
200
Briefly describe the steps to be taken when performing a dye penetrant inspection.
Thoroughly clean the metal surface, dry completely, and apply the penetrant. Remove the penetrant from the surface, dry the part, and apply the developer. Inspect and interpret the results.
300
What is the function of a capacitor?
To store electricity.
300
What is a "bill of material" associated with aircraft blueprints?
It is a list of materials and parts necessary for fabrication or assembly of a component or system.
300
What undesirable flight characteristic is most likely to result from exceeding the forward c.g. limit of an aircraft?
It may lead to insufficient stability with resulting difficulty in controlling the aircraft.
300
How are standard AN-type fluid line fittings identified?
AN fluid line fittings are colored either blue or black while AC type fittings are usually gray or yellow. AN fittings have coarser threads than AC fittings, and they also have a small shoulder between the threads and the flare cone. The AC fittings are completely threaded from the shoulder all the way to the flare cone
300
What type of cable is used in primary flight control systems?
Extra flexible 7 x 19 cable. Minimum Diameter 1/8”
400
How many views are required to determine the shape of an object?
Two views will not always determine the shape of an object. If three views are given, all three must be reviewed.
400
Why do some manufacturers specify an empty weight CG even though the aircraft is not operated at this empty weight?
When the empty weight CG falls within the empty weight CG range, it is unnecessary to perform a forward or aft weight and balance check if standard loading and seating arrangements are used?
400
What are the two kinds of flares used in aircraft plumbing systems?
A single flare and a double flare.
400
What is the general rule for using self-locking nuts
Do not use self-locking nuts at joints which subject either the nut or bolt to rotation.
500
What is electromagnetic induction?
It is the transfer of electrical energy by means of a magnetic field. This is the principle of transformer operation.
500
What information is given in the title block of a blueprint?
The drawing number, the name of the part or assembly, the scale, the date, the name of the firm, the name of the draftsman, the checker, and the approving official.
500
What is meant by positive (plus) and negative (minus) moment?
Any weight item removed is a minus weight and any weight item added is a plus weight. Multiplying a weight by an arm will result in a plus moment if the signs are alike and minus moment if the signs are unlike.
500
What precaution should be taken when deburring the cut end of a tube?
Care should be taken that the tubing is not cracked or that the wall thickness is not reduced by the deburring process.
500
What should be the depth of penetration when making a fillet weld?
Penetration should be 25 to 50 percent of the thickness of the base metal.