Aviation Mechanic Powerplant (Turbine)
Exam Questions and Answers
8108. At what point in an axial flow turbojet engine will the highest
gas pressures occur?
A. At the turbine entrance.
B. Within the burner section.
C. At the compressor outlet. -
correct answer ✅C. At the compressor outlet.
8109. One function of the nozzle diaphragm in a turbine engine is
to
A. Decrease the velocity of exhaust gasses.
B. Center the fuel spray in the combustion chamber.
C. Direct the flow of gasses to strike the turbine blades at a desired
angle. -
correct answer ✅C. Direct the flow of gasses to strike the turbine
blades at a desired angle.
8110. What is the profile of a turbine engine compressor blade?
A. The leading edge of the blade.
,Aviation Mechanic Powerplant (Turbine)
Exam Questions and Answers
B. A reduced blade tip thickness.
C. The curvature of the blade root. -
correct answer ✅B. A reduced blade tip thickness.
8111. The fan rotational speed of a dual axial compressor forward
fan engine is the same as the
A. Low pressure compressor
B. Forward turbine wheel.
C. High pressure compressor. -
correct answer ✅A. Low pressure compressor
8112. The abbreviation P sub t7 used in turbine engine terminology
means
A. The total inlet pressure.
B. The pressure and temperature at station No. 7
C. The total pressure at station No. 7 -
correct answer ✅C. The total pressure at station No. 7
,Aviation Mechanic Powerplant (Turbine)
Exam Questions and Answers
8113. The blending of blades and vanes in a turbine engine
A. Is usually accomplished only at engine overhaul.
B. Should be performed parallel to the length of the blade using
smooth contours to minimize stress points.
C. May sometimes be accomplished with the engine installed,
ordinarily using power tools. -
correct answer ✅B. Should be performed parallel to the length of
the blade using smooth contours to minimize stress points.
8114. What turbine engine section provides for proper mixing of
the fuel and air?
A. Combustion section.
B. Compressor section.
C. Diffuser section. -
correct answer ✅A. Combustion section.
8115. In a gas turbine engine, combustion occurs at a constant
A. Volume
, Aviation Mechanic Powerplant (Turbine)
Exam Questions and Answers
B. Pressure
C. Density -
correct answer ✅B. Pressure
8116. Which statement is true regarding jet engines?
A. At the lower engine speeds, thrust increases rapidly with small
increases in RPM.
B. At the higher engine speeds, thrust increases rapidly with small
increases in RPM.
C. The thrust delivered per pound of air consumed is less at high
altitude than at low altitude. -
correct answer ✅B. At the higher engine speeds, thrust increases
rapidly with small increases in RPM.
8117. Some high volume turboprop and turbojet engines are
equipped with two spool or split compressors. When these engines
are operated at high altitudes, the
A. Low pressure rotor will increase in speed as the compressor load
decreases in the lower density air.
Exam Questions and Answers
8108. At what point in an axial flow turbojet engine will the highest
gas pressures occur?
A. At the turbine entrance.
B. Within the burner section.
C. At the compressor outlet. -
correct answer ✅C. At the compressor outlet.
8109. One function of the nozzle diaphragm in a turbine engine is
to
A. Decrease the velocity of exhaust gasses.
B. Center the fuel spray in the combustion chamber.
C. Direct the flow of gasses to strike the turbine blades at a desired
angle. -
correct answer ✅C. Direct the flow of gasses to strike the turbine
blades at a desired angle.
8110. What is the profile of a turbine engine compressor blade?
A. The leading edge of the blade.
,Aviation Mechanic Powerplant (Turbine)
Exam Questions and Answers
B. A reduced blade tip thickness.
C. The curvature of the blade root. -
correct answer ✅B. A reduced blade tip thickness.
8111. The fan rotational speed of a dual axial compressor forward
fan engine is the same as the
A. Low pressure compressor
B. Forward turbine wheel.
C. High pressure compressor. -
correct answer ✅A. Low pressure compressor
8112. The abbreviation P sub t7 used in turbine engine terminology
means
A. The total inlet pressure.
B. The pressure and temperature at station No. 7
C. The total pressure at station No. 7 -
correct answer ✅C. The total pressure at station No. 7
,Aviation Mechanic Powerplant (Turbine)
Exam Questions and Answers
8113. The blending of blades and vanes in a turbine engine
A. Is usually accomplished only at engine overhaul.
B. Should be performed parallel to the length of the blade using
smooth contours to minimize stress points.
C. May sometimes be accomplished with the engine installed,
ordinarily using power tools. -
correct answer ✅B. Should be performed parallel to the length of
the blade using smooth contours to minimize stress points.
8114. What turbine engine section provides for proper mixing of
the fuel and air?
A. Combustion section.
B. Compressor section.
C. Diffuser section. -
correct answer ✅A. Combustion section.
8115. In a gas turbine engine, combustion occurs at a constant
A. Volume
, Aviation Mechanic Powerplant (Turbine)
Exam Questions and Answers
B. Pressure
C. Density -
correct answer ✅B. Pressure
8116. Which statement is true regarding jet engines?
A. At the lower engine speeds, thrust increases rapidly with small
increases in RPM.
B. At the higher engine speeds, thrust increases rapidly with small
increases in RPM.
C. The thrust delivered per pound of air consumed is less at high
altitude than at low altitude. -
correct answer ✅B. At the higher engine speeds, thrust increases
rapidly with small increases in RPM.
8117. Some high volume turboprop and turbojet engines are
equipped with two spool or split compressors. When these engines
are operated at high altitudes, the
A. Low pressure rotor will increase in speed as the compressor load
decreases in the lower density air.
