AMS 273 UNIT 1 EXAM PRACTICE LATEST 2026 UPDATED
QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027)
GRADE: A+|STATUS: GUARANTEED PASS
What type of propeller attachment uses a single steel key? - Answers -Tapered
What type of propeller attachment always requires an adapter hub? - Answers -Tapered
What kind of propeller always requires adapter hub or extra face plate? - Answers -Wooden
fixed pitch propeller
Fixed pitch propeller is in cruise flight. What would happen to propeller blade angle if pilot
lowers nose 10 degrees? - Answers -Nothing
Fixed pitch propeller is in cruise flight. What would happen to propeller AOA if pilot lowers nose
10 degrees? Why? - Answers -AOA decrease
Speed is going up and AOA is going down
Fixed pitch propeller is in cruise flight. What would happen to propeller AOA if pilot retarded
the throttle? Why? - Answers -AOA decrease
RPM is going down and AOA is going down
1|Page
, Is relative wind velocity at tip of propeller greater or smaller than shank end? - Answers -Much
greater
Fixed pitch propeller is is rolling down runway with full throttle. What is happening to RPM? -
Answers -Steadily increasing because increasing forward velocity is decreasing AOA of propeller,
which is decreasing propeller load on engine.
During static RPM check with fixed pitch propeller, is actual RPM equal to or less than red line
RPM? - Answers -Significantly less
Some repairs to wooden prop an A&P can perform? - Answers -Small dents, cracks parallel to
long axis, replace screws, balance
Some repairs to wooden prop an A&P cannot perform? - Answers -Repair elongated bolt holes
or centerbore, replace fabric or tipping
If 1A170 and DM7651 are stamped on prop hub, what does 1A170 mean? - Answers -Basic
design number
2|Page
QUESTIONS AND VERIFIED 100% SOLUTIONS (2026/2027)
GRADE: A+|STATUS: GUARANTEED PASS
What type of propeller attachment uses a single steel key? - Answers -Tapered
What type of propeller attachment always requires an adapter hub? - Answers -Tapered
What kind of propeller always requires adapter hub or extra face plate? - Answers -Wooden
fixed pitch propeller
Fixed pitch propeller is in cruise flight. What would happen to propeller blade angle if pilot
lowers nose 10 degrees? - Answers -Nothing
Fixed pitch propeller is in cruise flight. What would happen to propeller AOA if pilot lowers nose
10 degrees? Why? - Answers -AOA decrease
Speed is going up and AOA is going down
Fixed pitch propeller is in cruise flight. What would happen to propeller AOA if pilot retarded
the throttle? Why? - Answers -AOA decrease
RPM is going down and AOA is going down
1|Page
, Is relative wind velocity at tip of propeller greater or smaller than shank end? - Answers -Much
greater
Fixed pitch propeller is is rolling down runway with full throttle. What is happening to RPM? -
Answers -Steadily increasing because increasing forward velocity is decreasing AOA of propeller,
which is decreasing propeller load on engine.
During static RPM check with fixed pitch propeller, is actual RPM equal to or less than red line
RPM? - Answers -Significantly less
Some repairs to wooden prop an A&P can perform? - Answers -Small dents, cracks parallel to
long axis, replace screws, balance
Some repairs to wooden prop an A&P cannot perform? - Answers -Repair elongated bolt holes
or centerbore, replace fabric or tipping
If 1A170 and DM7651 are stamped on prop hub, what does 1A170 mean? - Answers -Basic
design number
2|Page
