Under magnetic particle inspection, a part will be identified as having a fatigue crack under which condition?
The discontinuity is found in a highly stressed area of the part. The discontinuity is found in a nonstressed area of the part. The discontinuity pattern is straight.
Find the empty weight CG location for the following tricycle gear aircraft. Each main wheel weighs 753 pounds, nosewheel weighs 22 pounds, distance between nosewheel and main wheels is 87.5 inches, nosewheel location is +9.875 inches from datum, with 1 gallon of hydraulic fluid at -21.0 inches included in the weight scale.
+97.375 inches. +95.61 inches. +96.11 inches.
Which statement(s) about Military Standard (MS) flareless fittings is/are correct?
During installation, MS flareless fittings are normally tightened by turning the nut a specified amount, rather than being torqued. New MS flareless tubing/fittings should be assembled clean and dry without lubrication. During installation, MS flareless fittings are normally tightened by applying a specified torque to the nut.
What should be done to prevent rapid deterioration when oil or grease come in contact with a tire?
Wipe the tire thoroughly with a dry cloth, and then rinse with clean water. Wipe the tire with a dry cloth followed by a washdown and rinse with soap and water. Wipe the tire with a cloth dampened with aromatic naphtha and then wipe dry with a clean cloth.
A 24-volt source is required to furnish 48 watts to a parallel circuit consisting of four resistors of equal value. What is the voltage drop across each resistor?
12 volts. 6 volts. 24 volts.
Which tubings have the characteristics (high strength, abrasion resistance) necessary for use in a high pressure (3,000 PSI) hydraulic system for operation of landing gear and flaps?
1100-1/2H or 3003-1/2H aluminum alloy. 2024-T or 5052-0 aluminum alloy. Corrosion resistant steel annealed or 1/4H.
(1) A Supplemental Type Certificate may be issued to more than one applicant for the same design change, providing each applicant shows compliance with the applicable airworthiness requirement.(2) An installation of an item manufactured in accordance with the Technical Standard Order system requires no further approval for installation in a particular aircraft.Regarding the above statements,
neither No. 1 nor No. 2 is true. both No. 1 and No. 2 are true. only No. 1 is true.
Select the correct statement in reference to flare fittings.
AC and AN fittings are identical except for material composition and identifying colors. AC fittings are generally replacing the older AN fittings. AN fittings can easily be identified by the shoulder between the end of the threads and the flare cone.
What type of measurement is used to designate the arm in weight and balance computation? Distance. Weight. Weight x distance.
A scratch or nick in aluminum tubing can be repaired provided it does not:
appear in the heel of a bend. appear on the inside of a bend. exceed 10 percent of the tube OD on a straight section.
Corrosion should be removed from magnesium parts with a:
carborundum abrasive. stiff, nonmetallic brush. silicon carbide brush.
The Society of Automotive Engineers (SAE) and the American Iron and Steel Institute use a numerical index system to identify the composition of various steels. In the number 4130 designating chromium molybdenum steel, the first digit indicates the:
percentage of carbon in the alloy in hundredths of a percent. basic alloying element. percentage of the basic element in the alloy.
Certificated mechanics, under their general certificate privileges, may:
perform 100-hour inspection of instruments. perform minor alterations to instruments. perform minor repairs to instruments.
During an annual inspection, if a defect is found which makes the aircraft unairworthy, the person disapproving must:
submit a Malfunction or Defect Report. void the aircraft's Airworthiness Certificate. provide a written notice of the defect to the owner.
The method used to rapidly charge a nickel cadmium battery utilizes:
constant voltage and varying current. constant current and varying voltage. constant current and constant voltage.
In an ac circuit, the effective voltage is:
equal to the maximum instantaneous voltage. less than the maximum instantaneous voltage. greater than the maximum instantaneous voltage.
In magnetic particle inspection, a flaw that is perpendicular to the magnetic field flux lines generally causes:
no disruption in the magnetic field. a large disruption in the magnetic field. a minimal disruption in the magnetic field.
Which of the following is NOT considered a method of heat transfer?
Conduction. Convection. Diffusion.
How many amperes will a 28-volt generator be required to supply to a circuit containing five lamps in parallel, three of which have a resistance of 6 ohms each and two of which have a resistance of 5 ohms each?
25.23 amperes. 1 ampere. 1.11 amperes.
What may be used to check the stem on a poppet-type valve for stretch?
Telescoping gauge. Dial indicator. Micrometer .
Corrosion caused by galvanic action is the result of,
excessive etching. contact between two unlike metals. excessive anodization.
The Society of Automotive Engineers (SAE) and the American Iron and Steel Institute use a numerical index system to identify the composition of various steels. In the number 4130 designating chromium molybdenum steel, the first digit indicates the,
percentage of carbon in the alloy in hundredths of a percent. basic alloying element. percentage of the basic element in the alloy.
To detect a minute crack using dye penetrant inspection usually requires,
that the developer be applied to a flat surface. a longer than normal penetrating time. the surface to be highly polished.
If a flared tube coupling nut is overtightened, where is the tube most likely to be weakened/damaged?
Along the entire length of the sleeve and tube interface. At the edge of the sleeve and straight portion of the tube. At the sleeve and flare junction.
The speed of sound in the atmosphere,
changes with a change in pressure. varies according to the frequency of the sound. changes with a change in temperature.
A line used to show an edge which is not visible is a,
phantom line. hidden line. break line.
Which condition indicates a part has cooled too quickly after being welded?
Discoloration of the base metal. Cracking adjacent to the weld. Gas pockets, porosity, and slag inclusions.
If a 40-pound generator applies +1400-inch pounds to a reference axis, the generator is located,
+35 from the axis. +25 from the axis. -35 from the axis.
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?
Relative humidity. Absolute humidity. Dewpoint.
Under Title 14 of the Code of Federal Regulations, what is the maximum penalty for falsification, alteration, or fraudulent reproduction of certificates, logbooks, reports, and records?
Ineligibility to receive any certificate or rating for one year. Imprisonment for one year and a $5,000.00 fine. Suspension or revocation of any certificate held.
A nonelectrolytic chemical treatment for aluminum alloys to increase corrosion resistance and paint bonding qualities is called,
alodizing. anodizing. dichromating.
An aircraft mechanic is privileged to perform major alterations on U.S. certificated aircraft; however, the work must be done in accordance with FAA approved technical data before the aircraft can be returned to service. Which is NOT approved data?
Airworthiness Directives. Supplemental Type Certificates. AC 43.13-2A.
Who is responsible for determining that materials used in aircraft maintenance and repair are of the proper type and conform to the appropriate standards?
The installing person or agency. The manufacturer of the aircraft. The owner or operator of the aircraft.
(Refer to Figure 16 .) Energize the circuit with the fuel tank selector switch selected to the left hand position. Using the schematic, identify the switches that will change position.
5, 9, 10, 11, 12, 13, 15. 5, 6, 11, 12, 13, 15, 16. 3, 5, 6, 7, 11, 13.
(Refer to Figure 33 .) Which material section line symbol indicates cast iron?
2 1 3.
Which of the following is an acceptable first step procedure to help prevent scratching when cleaning a transparent plastic surface?
Gently wipe the surface with a clean, dry, soft cloth. Flush the surface with clean water. Gently wipe the surface with a clean, soft cloth moistened with de-mineralized or distilled water.
What should be clearly indicated on the aircraft weighing form?
Weighing points. Weight of unusable fuel. Minimum allowable gross weight.
In the reading of aircraft blueprints, the term tolerance, used in association with aircraft parts or components,
is the difference between extreme permissible dimensions that a part may have and still be acceptable. represents the limit of galvanic compatibility between different adjoining material types in aircraft parts. is the tightest permissible fit for proper construction and operation of mating parts.
(1) An aircraft part may be demagnetized by subjecting it to a magnetizing force from alternating current that is gradually reduced in strength.(2) An aircraft part may be demagnetized by subjecting it to a magnetizing force from direct current that is alternately reversed in direction and gradually reduced in strength.Regarding the above statements,
only No. 1 is true. both No. 1 and No. 2 are true. only No. 2 is true.
Where is an AN clevis bolt used in an airplane?
Only for shear load applications. For tension and shear load conditions. Where external tension loads are applied.
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