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1. The monocoque fuselage relies largely on the strength of
A. Longerons and formers.
B. Skin or covering.
C. Bulkheads and longerons.
D. All of the above
B. Skin or covering
2. Why should a chemical rain repellant not be used on a dry windshield?
A. It will etch the glass.
B. It will restrict visibility.
C. It will cause glass crazing.
D. None of the above
B. It will restrict visibility
3. How many of the following are controlled by gyroscopes?
1. Attitude indicator.
2. Heading indicator.
3. Turn needle of the turn-and-slip indicator.
A. Three.
B. Two.
C. One.
D. None of the above
A. Three
4. The markings on the head of a Dzus fastener identify the
A. Body diameter, type of head, and length of the fastener.
B. Body type, head diameter, and type of material.
C. Manufacturer and type of material.
D. All of the above
A. Body diameter, type of head, and length of the fastener
5. Installed radio equipment is protected from damage due to jolts and vibration by
A. Shock mounts.
B. Spring and/or viscous damper mounted racks.
C. Rubber or foam cushioning material between circuit chassis and case.
D. All of the above
A. Shock mounts.
6. Prior to installation of a pneumatic surface-bonded type deicer boots, on the leading edge of the wing, you should
A. Remove all paint from the area to be covered by the deicer boot.
B. Apply adhesive to the back of the deicer boot and leading edge of the wing.
C. Apply a silastic compound between the boot and the wing skin.
D. None of the above
A. Remove all paint from the area to be covered by the deicer boot
7. Aircraft structural units, such as spars, engine supports, etc., which have been built up from sheet metal, are normally
A. Repairable, using approved methods.
B. Repairable, except when subjected to compressive loads.
C. Not repairable, but must be replaced when damaged or deteriorated.
D. All of the above
A. Repairable, using approved methods
8. Nickel-cadmium battery cases and drain surfaces which have been affected by electrolyte should be neutralized with a solution of
A. Boric acid.
B. Sodium bicarbonate.
C. Potassium hydroxide.
D. All of the above
A. Boric acid
9. If work performed on an aircraft has been done satisfactorily, the signature of an authorized person on the maintenance records for maintenance or alterations performed constitutes
A. Approval of the aircraft for return to service.
B. Approval for return to service only for the work performed.
C. Verification that the maintenance or alterations were performed referencing approved maintenance data.
D. All of the above
B. Approval for return to service only for the work performed
10. What is the recommended practice for cleaning a fuel tank before welding?
A. Purge the tank with air.
B. Flush the inside of the tank with clean water.
C. Steam clean the tank interior.
D. All of the above
C. Steam clean the tank interior
11. The maximum deviation (during level flight) permitted in a compensated magnetic direction indicator installed on an aircraft certificated under Federal Aviation Regulation Part 23 is
A. 6 degrees.
B. 8 degrees.
C. 10 degrees.
D. All of the above
C. 10 degrees
12. Type Certificate Data Sheets are issued for which of the following products?
A. Aircraft, engines, and propellers.
B. Aircraft, engines, and appliances.
C. Aircraft, engines, propellers, and appliances.
D. None of the above
A. Aircraft, engines, and propellers
13. What is the usual cause of runs and sags in aircraft finishes?
A. Too much material applied in one coat.
B. Material is being applied too fast.
C. Low atmospheric humidity.
D. All of the above
A. Too much material applied in one coat
14. A synchro transmitter is connected to a synchro receiver
A. Mechanically through linkage.
B. Electromagnetically without wires.
C. Electrically with wires.
D. None of the above
C. Electrically with wires
15. Which prevents a sudden loss of pressurization in the event that there is a loss of the pressurization source?
A. Firewall shutoff valve.
B. Cabin pressure outflow valve.
C. Delivery air duct check valve.
D. All of the above
C. Delivery air duct check valve
16. If oxygen bottle pressure is allowed to drop below a specified minimum, it may cause
A. The pressure reducer to fail.
B. The automatic altitude control valve to open.
C. Moisture to collect in the bottle.
D. None of the above
C. Moisture to collect in the bottle
17. The hydraulic packing seals used in a landing gear shock strut are
A. Generally designed to be compatible with more than one type of fluid.
B. Kept from direct contact with fluid by Teflon or nylon backup rings.
C. Used only with a specific type of fluid.
D. None of the above
C. Used only with a specific type of fluid
18. (1) The fuel jettison valve must be designed to allow flight personnel to close the valve during any part of the jettisoning operation.
(2) During the fuel jettisoning operation, the fuel must discharge clear of any part of the airplane.
Regarding the above statements,
A. Both No. 1 and No. 2 are true.
B. Only No. 2 is true.
C. Neither No. 1 nor No. 2 is true.
D. All of the above
A. Both No. 1 and No. 2 are true
19. A complete detailed inspection and adjustment of the valve mechanism will be made at the first 25 hours after the engine has been placed in service. Subsequent inspections of the valve mechanism will be made each second 50-hour period. From the above statement, at what intervals will valve mechanism inspections be performed?
A. 100 hours.
B. 50 hours.
C. 125 hours.
D. None of the above
A. 100 hours
20. What is the purpose of the oil separator in the pneumatic deicing system?
A. To protect the deicer boots from oil deterioration.
B. To remove oil from air exhausted from the deicer boots.
C. To prevent an accumulation of oil in the vacuum system.
D. None of the above
A. To protect the deicer boots from oil deterioration.
21. The aluminum code number 1100 identifies what type of aluminum?
A. Aluminum alloy containing 11 percent copper.
B. Aluminum alloy containing zinc.
C. 99 percent commercially pure aluminum.
D. None of the above
C. 99 percent commercially pure aluminum
22. The location of leaks and defects within the internal portions of the fuel system can usually be determined by
A. Visual inspection for evidence of wet spots and stains, and feeling for unusually warm components.
B. Performing a fuel flow check.
C. Observing the pressure gauge and operating the selector valves.
D. None of the above
C. Observing the pressure gauge and operating the selector valves
23. The thermal switches of a bimetallic thermal-switch type fire-detection (single-loop) system are heat-sensitive units that complete circuits at a certain temperature. They are connected in
A. Parallel with each other, and in parallel with the indicator lights.
B. Parallel with each other, but in series with the indicator lights.
C. Series with each other, but in parallel with the indicator lights.
D. All of the above
B. Parallel with each other, but in series with the indicator lights
24. Select the alternative which best describes the function of the flute section of a twist drill.
A. Provides a method for cooling oil to be delivered to the cutting surface.
B. Forms the area where the drill bit attaches to the drill motor.
C. Forms the cutting edges of the drill point.
D. None of the above
D. None of the above
25. Rivet gauge, or transverse pitch, is the distance between the
A. Centers of rivets in adjacent rows.
B. Centers of adjacent rivets in the same row.
C. Heads of rivets in the same row.
D. None of the above
A. Centers of rivets in adjacent rows
26. In installations where the ammeter is in the generator or alternator lead, and the regulator system does not limit the maximum current that the generator or alternator can deliver, the ammeter can be redlined at what percent of the generator or alternator rating?
A. 50
B. 75
C. 100
D. None of the above
C. 100
27. In the landing configuration, GPWS typically monitors the radio (radar) altimeter; air data computer; instrument landing system; and
A. Aileron, rudder, and elevator positions.
B. Landing gear and flap positions.
C. Spoiler, slat, and stabilizer positions.
D. None of the above
B. Landing gear and flap positions
28. (1) Aircraft instruments are color-coded to direct attention to operational ranges and limitations.
(2) Aircraft instrument range markings are not specified by Title 14 of the Code of Federal Regulations but are standardized by aircraft manufacturers.
Regarding the above statements,
A. Only No. 1 is true.
B. Only No. 2 is true.
C. Both No. 1 and No. 2 are true.
D. None of the above
A. Only No. 1 is true
29. Which procedure must be followed when defueling aircraft with sweptback wings?
A. Defuel all the tanks at one time.
B. Defuel the inboard wing tanks first.
C. Defuel the outboard wing tanks first.
D. None of the above
C. Defuel the outboard wing tanks first
30. When an unpressurized aircraft's static pressure system is leak checked to comply with the requirements of Section 91.411, what aircraft instrument may be used in lieu of a pitot-static system tester?
1. Vertical speed indicator.
2. Cabin altimeter.
3. Altimeter.
4. Cabin rate-of-change indicator.
5. Airspeed indicator.
A. 1 or 5.
B. 2 or 4.
C. 3.
D. None of the above
C. 3
31. How many of these seals are used with petroleum base hydraulic fluids?
1. Synthetic rubber.
2. Natural rubber.
3. Neoprene rubber.
A. One.
B. Two.
C. Three.
D. None of the above
B. Two
32. 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
A. Percentage of the basic element in the alloy.
B. Percentage of carbon in the alloy in hundredths of a percent.
C. Basic alloying element.
D. All of the above
C. Basic alloying element
33. Fuel jettisoning past the limits prescribed by Federal Aviation Regulations is usually prevented by
A. Closely monitoring the fuel quantity and turning off the fuel dump switch(es).
B. Dump limit valves or a low-level circuit.
C. Standpipes in the fuel tanks.
D. All of the above
B. Dump limit valves or a low-level circuit
34. Relief valves are used in pneumatic systems
A. For one direction flow control.
B. To reduce the rate of airflow.
C. As damage-preventing units.
D. None of the above
C. As damage-preventing units
35. If a brake debooster is used in a hydraulic brake system, its position in the system will be
A. Between the pressure manifold of the main hydraulic system and the power brake control valve.
B. Between the brake control valve and the brake actuating cylinder.
C. In the brake pressure line between the brake pedal and the brake accumulator.
D. None of the above
B. Between the brake control valve and the brake actuating cylinder
36. What are three methods of anti-icing aircraft windshields?
1. Blanket-type heating system.
2. An electric heating element in the windshield.
3. Heated air circulating system.
4. Hot water system.
5. Windshield wipers and anti-icing fluid.
6. Ribbon-type heating system.
A. 2, 3, 5.
B. 1, 2, 6.
C. 2, 3, 4.
D. None of the above
A. 2, 3, 5
37. How is the locking feature of the fiber-type locknut obtained?
A. By the use of an unthreaded fiber locking insert.
B. By a fiber insert held firmly in place at the base of the load carrying section.
C. By making the threads in the fiber insert slightly smaller than those in the load carrying section.
D. None of the above
C. By making the threads in the fiber insert slightly smaller than those in the load carrying section
38. Why is the main fuel strainer located at the lowest point in the fuel system?
A. It traps any small amount of water that may be present in the fuel system.
B. It provides a drain for residual fuel.
C. It filters and traps all micro-organisms that may be present in the fuel system.
D. All of the above
A. It traps any small amount of water that may be present in the fuel system
39. If a generator is equipped with a vibrator-type voltage regulator, the actual time the voltage regulator points remain open
A. Depends on the load carried by the generator.
B. Is controlled by the reverse-current cutout relay point clearance.
C. Is increased when the external load is greater than the generator output.
D. None of the above
A. Depends on the load carried by the generator
40. Annealing of aluminum
A. Increases the tensile strength.
B. Makes the material brittle.
C. Removes stresses caused by forming.
D. None of the above
C. Removes stresses caused by forming
41. Aircraft bolts with a cross or asterisk marked on the bolthead are
A. Made of aluminum alloy.
B. Close tolerance bolts.
C. Standard steel bolts.
D. None of the above
C. Standard steel bolts.
42. Longitudinal (fore and aft) structural members of a semi-monocoque fuselage are called
A. Spars and ribs.
B. Longerons and stringers.
C. Spars and stringers.
D. None of the above
B. Longerons and stringers
43. Which statement relating to the residual magnetizing inspection method is true?
A. Subsurface discontinuities are made readily apparent.
B. It is used in practically all circular and longitudinal magnetizing procedures.
C. It may be used with steels which have been heat treated for stressed applications.
D. All of the above
C. It may be used with steels which have been heat treated for stressed applications
44. A special bolt in a landing gear attachment requires a torque value of 440 inch-pounds. How many foot-pounds are required?
A. 36.8.
B. 38.
C. 36.6.
D. None of the above
C. 36.6
45. What type of flap system increases the wing area and changes the wing camber?
A. Fowler flaps.
B. Slotted flaps.
C. Split flaps.
D. All of the above
A. Fowler flaps
46. Washing-in the left wing of a monoplane, for purposes of rigging corrections after flight test, will have what effect on the lift and drag of that wing?
A. Both drag and lift will decrease due to decreased angle of attack.
B. Both drag and lift will increase due to increased angle of attack.
C. The drag will decrease due to the effect of the lift increase.
D. All of the above
B. Both drag and lift will increase due to increased angle of attack
47. (1) Propellers are NOT included in the Airworthiness Directive system.
(2) A certificated powerplant mechanic may make a minor repair on an aluminum propeller and approve for return to service.
Regarding the above statements,
A. Only No. 2 is true.
B. Both No. 1 and No. 2 are true.
C. Neither No. 1 nor No. 2 is true.
D. None of the above
A. Only No. 2 is true.
48. The removal, installation, and repair of landing gear tires by the holder of a private pilot certificate on an aircraft owned or operated is considered to be
A. A violation of the Federal Aviation Regulations.
B. A minor repair.
C. Preventive maintenance.
D. All of the above
C. Preventive maintenance
49. Technical information about older aircraft models, of which no more than 50 remain in service, can be found in the
A. Aircraft Listing.
B. Summary of Deleted and Discontinued Aircraft Specifications.
C. Index of Antique Aircraft.
D. All of the above
A. Aircraft Listing.
50. Very often, repairs to a control surface require static rebalancing of the control surface. Generally, flight control balance condition may be determined by
A. Checking for equal distribution of weight throughout the control surface.
B. The behavior of the trailing edge when the surface is suspended from its hinge points.
C. Suspending the control surface from its leading edge in the streamline position and checking weight distribution.
D. None of the above
B. The behavior of the trailing edge when the surface is suspended from its hinge points.