AIRFRAME AND POWERPLANT EXAM
QUESTIONS AND ANSWERS
What are the five major stresses to which all
aircraft are subjected to? -
correct answer ✅• Tension
• Compression
• Torsion
• Shear
• Bending
What is tension? -
correct answer ✅It's the stress that resists a force that tends to
pull
something apart.
What is an example of "tension stress"? -
correct answer ✅The engine pulls the aircraft
forward, but air resistance tries to hold it back.
What is compression? -
correct answer ✅The stress that resists a crushing force.
,AIRFRAME AND POWERPLANT EXAM
QUESTIONS AND ANSWERS
What is torsion? -
correct answer ✅The stress that produces twisting.
What is an example of torsion stress? -
correct answer ✅While moving the aircraft forward, the engine
also tends to twist it to one side, but other aircraft components
hold it on course.
What is shear? -
correct answer ✅The stress that resists the force tending to cause
one layer of a material to slide over an adjacent layer.
What is bending? -
correct answer ✅A combination of compression and tension.
What is a nacelle? -
correct answer ✅(Sometimes called "pods") Streamlined
enclosures used primarily to house the engine and its
components.
, AIRFRAME AND POWERPLANT EXAM
QUESTIONS AND ANSWERS
What is an "empannage"? -
correct answer ✅The tail section of an aircraft.
What is the purpose of the tail cone? -
correct answer ✅The tail cone serves to close and streamline the
aft end of
most fuselages.
What are the primary flight control surfaces on a fixed-wing
aircraft? -
correct answer ✅Ailerons, elevators, and the rudder.
Describe an aileron. -
correct answer ✅It is attached to the trailing edge of both wings
and when moved, rotate the aircraft around the longitudinal axis.
Describe an elevator. -
correct answer ✅It is attached to the trailing edge of the
horizontal stabilizer. When it is moved, it alters aircraft pitch, which
is the attitude about the horizontal or lateral axis.
QUESTIONS AND ANSWERS
What are the five major stresses to which all
aircraft are subjected to? -
correct answer ✅• Tension
• Compression
• Torsion
• Shear
• Bending
What is tension? -
correct answer ✅It's the stress that resists a force that tends to
pull
something apart.
What is an example of "tension stress"? -
correct answer ✅The engine pulls the aircraft
forward, but air resistance tries to hold it back.
What is compression? -
correct answer ✅The stress that resists a crushing force.
,AIRFRAME AND POWERPLANT EXAM
QUESTIONS AND ANSWERS
What is torsion? -
correct answer ✅The stress that produces twisting.
What is an example of torsion stress? -
correct answer ✅While moving the aircraft forward, the engine
also tends to twist it to one side, but other aircraft components
hold it on course.
What is shear? -
correct answer ✅The stress that resists the force tending to cause
one layer of a material to slide over an adjacent layer.
What is bending? -
correct answer ✅A combination of compression and tension.
What is a nacelle? -
correct answer ✅(Sometimes called "pods") Streamlined
enclosures used primarily to house the engine and its
components.
, AIRFRAME AND POWERPLANT EXAM
QUESTIONS AND ANSWERS
What is an "empannage"? -
correct answer ✅The tail section of an aircraft.
What is the purpose of the tail cone? -
correct answer ✅The tail cone serves to close and streamline the
aft end of
most fuselages.
What are the primary flight control surfaces on a fixed-wing
aircraft? -
correct answer ✅Ailerons, elevators, and the rudder.
Describe an aileron. -
correct answer ✅It is attached to the trailing edge of both wings
and when moved, rotate the aircraft around the longitudinal axis.
Describe an elevator. -
correct answer ✅It is attached to the trailing edge of the
horizontal stabilizer. When it is moved, it alters aircraft pitch, which
is the attitude about the horizontal or lateral axis.
