1. “Reheating” of a metal is the application of heat, b.
A dull finish due to the topcoat 'sinking in'
usually to remove to primer that is still too soft
a. Extreme hardness and brittleness c. Corrosion
b. Carbon content d. Reflection of ultraviolet from the fabric
c. Cracks, voids, and cold shuts 8. The replacement of a damaged vertical stabilizer
with a new identical stabilizer purchased from the
d. The effects of heat treatment aircraft manufacturer is considered a _____.
2. What is the usual cause of runs and sags in a. major alteration
aircraft finishes?
b. minor alteration
a. Low atmospheric humidity
c. major repair
b. Material is being applied too fast
d. minor repair
c. Material is being applied too slow
9. Impact resistance measures the material's _____.
d. Too much material applied in one coat
a. Toughness
3. The most important consideration when selecting
welding rod is ______. b. Hardness
a. ambient conditions c. Fusibility
b. amount of acetylene d. ductility
c. flame temperature 10. Which heat-treating operation would be performed
when the surface of the metal is changed
d. material compatibility chemically by introducing a high carbide or nitride
content?
4. An aircraft had an empty weight of 2886 lb with a
moment of 101,673.78 lb-in before several a. Tempering
alterations were made. The alterations include:
removing two passenger seat (45lb) at +69”; b. Case hardening
installing a cabinet (97lb) at +71”; installing a seat
and safety belt (30lb) +71”; installing a new radio c. Normalizing
equipment (45lb) at +94”. The alterations caused
the new empty weight to move ______ d. Welding
a. 36.6 in aft of the original empty CG 11. How should a welding torch flame be adjusted to
weld stainless steel?
b. 2.81 in aft of the original empty CG
a. Slightly carburizing
c. 1.88 in aft of the original empty CG
b. Slightly oxidizing
d. 1.40 in aft of the original empty CG
c. Neutral
5. It is the test for material hardness in which a
hardened steel ball one centimeter in diameter is d. Welding stainless steel is not acceptable
pressed under a known pressure into a flat surface for aircrafts.
of the test specimen.
12. Refer to weight of an item multiply by its arm
a. Moh
a. Moment
b. Tig
b. Vertical axis
c. Brinell
c. Reference datum
d. Hooke
d. arm
6. In cases of elongated boltholes in a wood spar or
cracks in the vicinity of boltholes, 13. A squib, as used in a fire-protection system, is a
_____.
a. a new section of spar should be spliced in
or the spar replaced entirely. a. device for causing the fire-extinguishing
agent to be released
b. the spar may be reinforced by using
hardwood reinforcing plates. b. probe used for installing frangible disks in
extinguisher bottles
c. it is permissible to ream the hole, plug with
hardwood, and redrill. c. temperature-sensing device
d. redrill the bolt hole and file to smoothen d. wizard-born muggle
the edges.
14. In Gas Tungsten Arc welding, a stream of inert gas
7. What is likely to occur if hydrated wash primer is is used to _____.
applied to unpainted aluminum and then about 30
a. attract oxygen to the puddle of molten
to 40 minutes later a finish topcoat, when the
metal
humidity is low?
a. A glossy, blush-free finish
b. concentrate the heat of the arc and 21. The side clearances of piston rings are measured
prevent its dissipation with a
c. lower the temperature required to properly a. Dial gauge
fuse the metal
b. Micrometer caliper gauge
d. prevent the formation of oxides in the
puddle c. Thickness gauge
15. What is the color of an AN fitting? d. Protractor
a. Black 22. A category of plastic material that is capable of
softening or flowing when reheated is described as
b. Brown a
c. Red a. Thermocure
d. Yellow b. Thermoplastic
16. Why is steel tempered after being hardened? c. Thermoset
a. To increase its hardness and ductility d. Thermoflow
b. To increase its strength and decrease its 23. How are pressure hoses categorized
internal stresses.
a. According to the outer diameter
c. To relieve its internal stresses and
increase its brittleness. b. According to the inner diameter
d. To relieve its internal stresses and reduce c. According to the maximum applied
its brittleness. pressure
17. The part of the aircraft which receives or encloses d. According to the maximum allowable load
the landing gear as it retracts?
24. Why is Nickel Chromium used in many exhaust
a. Wheel fairing systems
b. Wheel well a. Lightweight and flexible
c. Wheel bay b. Corrosion-resistant and low-heat
conductivity
d. Engine pod
c. Corrosion-resistant and high-heat
18. The shear strength of an AN470DD-6-8: rivet, conductivity
immediately after driving is approximately 75
percent of its ultimate shear strength. The d. Corrosion-resistant and low expansion
remaining 25 percent is obtained by coefficient
a. Standing at ordinary room temperature for 25. If a material is forced to be the tertiary phase of
about 4 days (age harden) creep, it _______.
b. Chilling the riveted unit for an hour a. Should be stop drilled and be
condition-monitored
c. Shear loads imposed on the riveted
assembly in use b. Should undergo dye penetrant inspection
for evaluation
d. Heating the unit in which the rivet was
used to 960F, holding for 3 hours, and c. Should be replaced immediately
allowing the unit to cool slowly until room
temperature is recovered. d. Is still safe to be used
19. What is the allowable manufacturing tolerance for 26. At what temperature should steel be tempered
a bushing where the outside dimensions shown on
the blueprint are 1.0625 + 0.0025, - 0.0003? a. Above annealing temperature
a. 0.0025 b. At annealing temperature
b. 0.0028 c. Below annealing temperature
c. 1.0650 d. 1.5 times the “annealing temperature”
d. 1.0647
20. In what direction/s are composite fabric materials
considered to be strongest?
27. What does an “X” on a cable indicates
a. All
a. AC power
b. Bias
b. Auxiliary power
c. Weft
c. Control system
d. Warp
d. Close-tolerance structure
28. Normalizing is a process of heat treating 35. Joggles in removed rivet shanks would indicate
partial
a. Non-ferrous metals aside from aluminum
a. Bearing Failure
b. Aluminum alloys only
b. Shear Failure
c. Ferrous metals only
c. Tear Failure
d. Both ferrous and non-ferrous metals
d. Tension Failure
29. When an aircraft is being weighted, the brakes
should be: 36. The means by which FAA notifies aircraft owners
and other interested persons of unsafe conditions
a. Full on and prescribes conditions under which product
may still operate
b. Set to park
a. Airworthiness Directives
c. Set just enough to retard any tendency of
the aircraft to move b. Aviation Safety Data
d. Full off and wheel chocks should be used c. Airworthiness Alert
30. When preparing an aircraft for weighing, which of d. Airworthiness Alert and Aviation Safety
the following should be filled unless otherwise Data
noted in the aircraft specification or manufacturer’s
instruction 37. Alclad is a metal consisting of
a. Lavatory tanks a. aluminum alloy surface layers and a pure
aluminum core.
b. Potable water container
b. pure aluminum surface layers on an
c. Hydraulic reservoir aluminum layer core.
d. Fluid reservoir for injection in the engines c. a homogenous mixture of pure aluminum
and aluminum alloy.
31. Plasticized lacquer applied to fabric coated aircraft
d. a homogenous mixture of pure aluminium
a. Matrix and a pure aluminum core
b. Plastic Dope 38. In rotorcraft external-loading, the ideal location of
the cargo release is where the line of action
c. Epoxy Resins passes
d. All of the above a. aft of the center of gravity at all times.
32. Alloy 2117 rivet are heat treated b. forward of the center of gravity at all times.
a. Heated to 490 deg C to 500 deg C and c. through the center of gravity at all times
quenched in cold water
d. answer a and b are correct
b. By manufacturer but require heat
treatment before being driven 39. Alloy cool at room temperature
c. By manufacturer but do not require heat a. Idk
treatment before being driven
b. Idk
d. Heated to 500 deg C to 510 deg C and
quenched in cold water c. Idk
33. Aircraft was not approved for RTS after annual d. Idk
inspection and owner wanted to fly to another
maintenance base 40. Provide shim when needed at a mouth laid bearing
surfaces and ????? of castle nut
a. Owner must obtain special flight permit
a. Bolt
b. Aircraft becomes restricted category type
until approved for RTS b. Sealant
c. May be flown up to 10 hours to reach c. Rivet
another maintenance base
d. Washers
d. Owner should obtain special flight permit
34. When locating FS 150
a. 150 inches aft of buttock line
b. 150 inches aft of zero or fixed reference
line
c. 150 centimeters aft of nose
d. 150 inches forward of empennage
