2026 Airframe Test Guide (Sheet Metal & Non-Metallic Structures
8041-8178 UPDATED ACTUAL Questions and CORRECT Answers
Question: 8041. A well-designed rivet joint will subject the rivets to
Correct Answer: Shear loads
Question: 8042. A main difference between Lockbolt/Huckbolt tension and shear fasteners (other than
their application) is in the
Correct Answer: Number of locking collar grooves
Question: 8043. Alloy 2117 rivets are heat treated
Correct Answer: by the manufacturer and do not require heat treatment before being driven.
Question: 8044. The general rule for finding the proper rivet diameter is
Correct Answer: three times the thickness of the thickest sheet.
Question: 8045. The shop head of a rivet should be
Correct Answer: one and one-half times the diameter of the rivet shank.
Question: 8046. One of the main advantages of Hi-Lok type fasteners over earlier generations is that
Correct Answer: they can be installed with ordinary hand tools.
Question: 8047. The markings on the head of a Dzus fastener identify the
Correct Answer: body diameter, type of head, and length of the fastener.
Question: 8048. The Dzus turnlock fastener consist of a stud, grommet, and receptacle. The stud length is
measured in
Correct Answer: hundredths of an inch.
Question: 8049. The Dzus turnlock fastener consists of a stud, grommet, and receptacle. The stud diameter
is measured in
Correct Answer: tenths of an inch.
Question: 8050. Threaded rivets (Rivnuts) are commonly used to
Correct Answer: attach parts or components with screws to sheet metal.
Question: 8051. The installation of Cherrymax and Olympic-Lok rivets is accomplished by utilizing
Correct Answer: a pulling tool.
Question: 8052. Hole filling fasteners (for example, MS20470 rivets) should not be used in composite
structures primarily because of the
Correct Answer: possibility of causing delamination.
Question: 8053. Metal fasteners used with carbon/graphite composite structures
Correct Answer: must be constructed of material such as titanium or corrosion resistant steel.
Question: 8054. Sandwich panels made of metal honeycomb construction are used on modern aircraft
because this type of construction
, Correct Answer: has a high strength to weight ratio.
Question: 8055. When performing a ring (coin tap) test on composite structures, a change in sound may be
due to damage or to transition to a different internal structure. True or False?
Correct Answer: True.
Question: 8056. What methods may be used to inspect fiberglass/honeycomb structures for entrapped
water?
Correct Answer: X-ray and Backlighting.
Question: 8057. When balsa wood is used to replace a damaged honeycomb core, the plug should be cut so
that
Correct Answer: the grain is perpendicular to the skin.
Question: 8058. when repairing puncture-type damage of a metal faced laminated honeycomb panel, the
edges of the doubler should be tapered to
Correct Answer: 100 times the thickness of the metal.
Question: 8059. One of the best ways to assure that a properly prepared batch of matrix resin has been
achieved is to
Correct Answer: have mixed enough for a test sample.
Question: 8060. How does acoustic emission testing detect defects in composite materials?
Correct Answer: By pickup up the "noise" of any deterioration that may be present.
Question: 8061. What precaution, if any, should be taken to prevent corrosion inside a repaired metal
honeycomb structure?
Correct Answer: Prime the repair with a corrosion inhibitor and seal from the atmosphere.
Question: 8062. One method of inspecting a laminated fiberglass structure that has been subjected to
damage is to
Correct Answer: Strip the damaged area of all paint and shine a strong light through the structure.
Question: 8063. When inspecting a composite panel using the ring test/tapping method, a dull thud may
indicate
Correct Answer: separation of the laminates.
Question: 8064. How many benefits of using microballoons when making repairs to laminated honeycomb
panels?
Correct Answer: -- Improved strength to weight ratio -- less density -- Lower stress concentrations.
Question: 8065. The length of time that a catalyzed resin will remain in a workable state is called the
Correct Answer: pot life
Question: 8066. A category of plastic material that is capable of softening or flowing when reheated is
described as a
Correct Answer: thermoplastic.
Question: 8067. The classification for high tensile strength fiberglass used in aircraft structures is
8041-8178 UPDATED ACTUAL Questions and CORRECT Answers
Question: 8041. A well-designed rivet joint will subject the rivets to
Correct Answer: Shear loads
Question: 8042. A main difference between Lockbolt/Huckbolt tension and shear fasteners (other than
their application) is in the
Correct Answer: Number of locking collar grooves
Question: 8043. Alloy 2117 rivets are heat treated
Correct Answer: by the manufacturer and do not require heat treatment before being driven.
Question: 8044. The general rule for finding the proper rivet diameter is
Correct Answer: three times the thickness of the thickest sheet.
Question: 8045. The shop head of a rivet should be
Correct Answer: one and one-half times the diameter of the rivet shank.
Question: 8046. One of the main advantages of Hi-Lok type fasteners over earlier generations is that
Correct Answer: they can be installed with ordinary hand tools.
Question: 8047. The markings on the head of a Dzus fastener identify the
Correct Answer: body diameter, type of head, and length of the fastener.
Question: 8048. The Dzus turnlock fastener consist of a stud, grommet, and receptacle. The stud length is
measured in
Correct Answer: hundredths of an inch.
Question: 8049. The Dzus turnlock fastener consists of a stud, grommet, and receptacle. The stud diameter
is measured in
Correct Answer: tenths of an inch.
Question: 8050. Threaded rivets (Rivnuts) are commonly used to
Correct Answer: attach parts or components with screws to sheet metal.
Question: 8051. The installation of Cherrymax and Olympic-Lok rivets is accomplished by utilizing
Correct Answer: a pulling tool.
Question: 8052. Hole filling fasteners (for example, MS20470 rivets) should not be used in composite
structures primarily because of the
Correct Answer: possibility of causing delamination.
Question: 8053. Metal fasteners used with carbon/graphite composite structures
Correct Answer: must be constructed of material such as titanium or corrosion resistant steel.
Question: 8054. Sandwich panels made of metal honeycomb construction are used on modern aircraft
because this type of construction
, Correct Answer: has a high strength to weight ratio.
Question: 8055. When performing a ring (coin tap) test on composite structures, a change in sound may be
due to damage or to transition to a different internal structure. True or False?
Correct Answer: True.
Question: 8056. What methods may be used to inspect fiberglass/honeycomb structures for entrapped
water?
Correct Answer: X-ray and Backlighting.
Question: 8057. When balsa wood is used to replace a damaged honeycomb core, the plug should be cut so
that
Correct Answer: the grain is perpendicular to the skin.
Question: 8058. when repairing puncture-type damage of a metal faced laminated honeycomb panel, the
edges of the doubler should be tapered to
Correct Answer: 100 times the thickness of the metal.
Question: 8059. One of the best ways to assure that a properly prepared batch of matrix resin has been
achieved is to
Correct Answer: have mixed enough for a test sample.
Question: 8060. How does acoustic emission testing detect defects in composite materials?
Correct Answer: By pickup up the "noise" of any deterioration that may be present.
Question: 8061. What precaution, if any, should be taken to prevent corrosion inside a repaired metal
honeycomb structure?
Correct Answer: Prime the repair with a corrosion inhibitor and seal from the atmosphere.
Question: 8062. One method of inspecting a laminated fiberglass structure that has been subjected to
damage is to
Correct Answer: Strip the damaged area of all paint and shine a strong light through the structure.
Question: 8063. When inspecting a composite panel using the ring test/tapping method, a dull thud may
indicate
Correct Answer: separation of the laminates.
Question: 8064. How many benefits of using microballoons when making repairs to laminated honeycomb
panels?
Correct Answer: -- Improved strength to weight ratio -- less density -- Lower stress concentrations.
Question: 8065. The length of time that a catalyzed resin will remain in a workable state is called the
Correct Answer: pot life
Question: 8066. A category of plastic material that is capable of softening or flowing when reheated is
described as a
Correct Answer: thermoplastic.
Question: 8067. The classification for high tensile strength fiberglass used in aircraft structures is
