Systems test alpha

Study Guide (General Description, Flight Controls and Hydraulics, Rotors, and Power Plant)

1. Define the term WARNING ,[object Object],[object Object],[object Object],[object Object]

2. Define the term CAUTION ,[object Object],[object Object],[object Object],[object Object]

3. Define NOTE ,[object Object],[object Object],[object Object],[object Object]

4. Define the term SHALL ,[object Object],[object Object],[object Object],[object Object]

5. Define the term SHOULD ,[object Object],[object Object],[object Object],[object Object]

6. Define the terms MAY or NEED NOT ,[object Object],[object Object],[object Object],[object Object]

7. Define the term WILL ,[object Object],[object Object],[object Object],[object Object]

8. The three sections of the TH-67 fuselage are the _____, _______, and the _______ section. ,[object Object],[object Object],[object Object],[object Object]

9. The VFR & A+ configuration have one pitot that provides _______ air to the airspeed indicator and two vents that provide _____ air to the static instruments. ,[object Object],[object Object],[object Object],[object Object]

10. The IFR configuration has __ ______ pitot/static systems. ,[object Object],[object Object],[object Object],[object Object]

11. The TH-67 ____ light, located on the aircraft nose provides a 450 watt lamp in an extendable and slewable mount. ,[object Object],[object Object],[object Object],[object Object]

12. The TH-67 ____ light, located on the aircraft nose provides a 250 watt lamp in a fixed mount. ,[object Object],[object Object],[object Object],[object Object]

13. How many switches are used to control the search light in the NVG mode on the A+ configuration? ,[object Object],[object Object],[object Object],[object Object]

14. What does the term semi-monocoque mean? ,[object Object],[object Object],[object Object],[object Object]

15. The TH-67 intermediate section uses a ____ type of construction. ,[object Object],[object Object],[object Object],[object Object]

16. Which section of the aircraft contains the engine? ,[object Object],[object Object],[object Object],[object Object]

17. The TH-67 tail boom section uses ___ ______ type of construction. ,[object Object],[object Object],[object Object],[object Object]

18. State the purpose of the vertical fin. ,[object Object],[object Object],[object Object],[object Object]

State the purpose of the horizontal stabilizer. ,[object Object],[object Object],[object Object],[object Object]

19. At what airspeed is the tail rotor fully off-loaded in forward flight? ,[object Object],[object Object],[object Object],[object Object]

20. The nomenclature of the TH-67 power plant is the model _______. ,[object Object],[object Object],[object Object],[object Object]

21. State the maximum torque available (MAX TQ AVAIL). ,[object Object],[object Object],[object Object],[object Object]

22. State the maximum continuous power (TQ AVAIL CONT) of the TH-67 power plant. ,[object Object],[object Object],[object Object],[object Object]

23. Can the maximum transient power setting (110% TQ) be used intentionally? ,[object Object],[object Object],[object Object],[object Object]

24. State the diameter of the TH-67 main rotor. ,[object Object],[object Object],[object Object],[object Object]

25. What type of airfoil is the main rotor blade? ,[object Object],[object Object],[object Object],[object Object]

26. How many degrees of twist are there in the main rotor blade? ,[object Object],[object Object],[object Object],[object Object]

27. State the tail rotor diameter. ,[object Object],[object Object],[object Object],[object Object]

28. How many degrees of pitch are in the tail rotor with full left pedals applied? ,[object Object],[object Object],[object Object],[object Object]

29. State the TH-67 Vne ,[object Object],[object Object],[object Object],[object Object]

29. State the maximum airspeed limitation with >85 to 100% TQ applied. ,[object Object],[object Object],[object Object],[object Object]

31. State the minimum rate of descent airspeed in autorotation. ,[object Object],[object Object],[object Object],[object Object]

32. State the maximum glide distance airspeed in autorotation. ,[object Object],[object Object],[object Object],[object Object]

33. State the minimum crew restriction VFR and IFR. ,[object Object],[object Object],[object Object],[object Object]

34. State the fuel capacity of the TH-67 fuel cell. ,[object Object],[object Object],[object Object],[object Object]

35. Why must the engine oil system be drained and refilled if transmission and engine oils are intermixed? ,[object Object],[object Object],[object Object],[object Object]

36. In a conventional helicopter, what are the three basic flight controls that are used to maneuver the aircraft? ,[object Object],[object Object],[object Object],[object Object]

37. In a conventional helicopter, which flight control directs the total lift/thrust of the main rotor system? ,[object Object],[object Object],[object Object],[object Object]

38. Which conventional helicopter flight control will input a pitch change to all main rotor blades simultaneously regardless of the blades position? ,[object Object],[object Object],[object Object],[object Object]

39. In a conventional helicopter, the rotation of the main rotor induces a force known as torque. Describe the effects this force has on the fuselage. ,[object Object],[object Object],[object Object],[object Object]

40. State the primary purpose of the tail rotor system in a conventional helicopter. ,[object Object],[object Object],[object Object],[object Object]

41. The ___ ____ controls will provide directional control (heading) of the aircraft during hovering, as well as trimming the fuselage of the helicopter at higher speeds. ,[object Object],[object Object],[object Object],[object Object]

42. Cyclic control inputs (fore/aft and lateral) are considered independent up to the _____ ______ from there on up to the non-rotating swash plate they are considered ______. ,[object Object],[object Object],[object Object],[object Object]

43. In the VFR configuration, what happens to the pilot’s cyclic stick if left unattended when the copilot’s cyclic stick is removed? ,[object Object],[object Object],[object Object],[object Object]

44. Where is the cyclic friction knob located? ,[object Object],[object Object],[object Object],[object Object]

45. How much preload is on the cyclic system with the aircraft running and the hydraulics on? ,[object Object],[object Object],[object Object],[object Object]

46. Which aircraft configuration has the force trim system? ,[object Object],[object Object],[object Object],[object Object]

47. What switches are located on the pilot’s collective stick control head? ,[object Object],[object Object],[object Object],[object Object]

48. Where is the collective friction located? ,[object Object],[object Object],[object Object],[object Object]

49. What switches are located on the co-pilot’s collective control head? ,[object Object],[object Object],[object Object],[object Object]

50. What amount of collective control preload is built into the collective flight control system? ,[object Object],[object Object],[object Object],[object Object]

51. Which collective control stick is removable and why? ,[object Object],[object Object],[object Object],[object Object]

52. Which direction can the tail rotor pedals be adjusted? ,[object Object],[object Object],[object Object],[object Object]

53. What changes the pitch (angle-of-attack) in the tail rotor through the lever assembly? ,[object Object],[object Object],[object Object],[object Object]

54. What is the preload on the tail rotor system? ,[object Object],[object Object],[object Object],[object Object]

55. Does the tail rotor system have hydraulic assist? ,[object Object],[object Object],[object Object],[object Object]

56. The TH-67 flight control system can best be described as ____ ____ ____ with hydraulic assist. ,[object Object],[object Object],[object Object],[object Object]

57. The purpose of the hydraulic servo actuator installed to the cyclic and collective controls is to convert ____ ____ under pressure into ____ ____ work. ,[object Object],[object Object],[object Object],[object Object]

58. The TH-67 hydraulic pump is a constant ____, _____ delivery system component providing 600 +/- 25 psi, and _____ GPM flow rate. ,[object Object],[object Object],[object Object],[object Object]

59. The purpose of the differential release valve is to reduce ____ ____ ____ when rotor loads are increased due to high “G” maneuvers or flight into turbulence. ,[object Object],[object Object],[object Object],[object Object]

60. With regard to cyclic input, does the blades position in the plane of rotation matter? ,[object Object],[object Object],[object Object],[object Object]

61. What drives the rotating swash plate? ,[object Object],[object Object],[object Object],[object Object]

62. What is another name for the collar set and idler lever/link assembly? ,[object Object],[object Object],[object Object],[object Object]

63. What connects the rotating swash plate to the pitch change horn? ,[object Object],[object Object],[object Object],[object Object]

64. What type of rotor system is used on the TH-67 helicopter? ,[object Object],[object Object],[object Object],[object Object]

65. How is the rotor system attached to the mast? ,[object Object],[object Object],[object Object],[object Object]

66. What is the definition of a trunnion? ,[object Object],[object Object],[object Object],[object Object]

67. What is the purpose of the yoke? ,[object Object],[object Object],[object Object],[object Object]

68. How is the trunnion attached to the yoke? ,[object Object],[object Object],[object Object],[object Object]

69. What kind of balancing requires lead weights to be added to the blade retention bolt? ,[object Object],[object Object],[object Object],[object Object]

70. What distributes the centrifugal load from the blade grip to the yoke? ,[object Object],[object Object],[object Object],[object Object]

71. What structural members make up the main rotor blade? ,[object Object],[object Object],[object Object],[object Object]

72. Weights are added at the factory at the time of manufacturing to control the undesirable twisting associated with asymmetrical airfoils and to preserve favorable aerodynamic characteristics. ,[object Object],[object Object]

73. Why does the main rotor blades have a negative 10 º twist? ,[object Object],[object Object],[object Object],[object Object]

74. The “droop snoot” is known for what aerodynamic characteristics? ,[object Object],[object Object],[object Object],[object Object]

75. How many trim tabs are there on the main rotor blade? ,[object Object],[object Object],[object Object],[object Object]

76. What are doublers used for on the main rotor blade? ,[object Object],[object Object],[object Object],[object Object]

77. What is the purpose of the flap restraint kit? ,[object Object],[object Object],[object Object],[object Object]

78. At what RPM is flapping limited to 6 º maximum? ,[object Object],[object Object],[object Object],[object Object]

79. At what RPM is the flapping angle no longer limited? ,[object Object],[object Object],[object Object],[object Object]

80. How is the tail rotor assembly mounted to the tail rotor output shaft? ,[object Object],[object Object],[object Object],[object Object]

81. How does the tail rotor system compensates for dissymmetry of lift? ,[object Object],[object Object],[object Object],[object Object]

82. What are the washers on the blade bolts used for? ,[object Object],[object Object],[object Object],[object Object]

83. What are the rectangular weights and washers on one end of the trunnion used for? ,[object Object],[object Object],[object Object],[object Object]

84. What are the nut, bolt, and washer(s) used for on the dynamic balance wheel? ,[object Object],[object Object],[object Object],[object Object]

85. Where are the weights that are added at the factory located? ,[object Object],[object Object],[object Object],[object Object]

86. What are the washers on the pitch horns used for? ,[object Object],[object Object],[object Object],[object Object]

87. The TH-67 engine’s rated shaft horsepower is de-rated for _____ ______. ,[object Object],[object Object],[object Object],[object Object]

88. The statement that best describes the TH-67 engine is “Internal combustion gas turbine featuring a ______ ______ ______. ,[object Object],[object Object],[object Object],[object Object]

89. What are two advantages of a free turbine? ,[object Object],[object Object],[object Object],[object Object]

90. The purpose of the Air Barrier Filter is to provide clean ______ air to the engine. ,[object Object],[object Object],[object Object],[object Object]

91. Will the engine air be filtered if the ENG ALT AIR switch is placed in the open position? ,[object Object],[object Object],[object Object],[object Object]

92. What indication will the pilot receive when the air barrier filter is blocked/clogged? ,[object Object],[object Object],[object Object],[object Object]

93. What are the four sections of the model 250-C20J turbine engine? ,[object Object],[object Object],[object Object],[object Object]

94. What does the bleed air control valve do? ,[object Object],[object Object],[object Object],[object Object]

95. What are the five customer bleed air ports on the diffuser scroll? ,[object Object],[object Object],[object Object],[object Object]

96. What is the purpose of the cap on the rear diffuser vent and cap? ,[object Object],[object Object],[object Object],[object Object]

97. The compressor consists of how many and what kind of compressor stages? ,[object Object],[object Object],[object Object],[object Object]

98. On a standard day the airs temperature increases to approximately ___ º F by the time it goes through the seventh stage of compression. ,[object Object],[object Object],[object Object],[object Object]

99. What are the only items provided with anti-icing capability? ,[object Object],[object Object],[object Object],[object Object]

100. Should the bleed-air control valve be opened or closed on preflight? ,[object Object],[object Object],[object Object],[object Object]

101. When does the spark cease to exist in the combustion section of the engine? ,[object Object],[object Object],[object Object],[object Object]

102. What is the temperature of the flame in the combustion section of the engine? ,[object Object],[object Object],[object Object],[object Object]

103. What is the melting point of titanium? ,[object Object],[object Object],[object Object],[object Object]

104. How much of the compressed air is used for combustion? ,[object Object],[object Object],[object Object],[object Object]

105. T or F Approximately 75 to 80% of the air is used to cool and center the combustion flame plus drive the five customer bleed-air accessories. ,[object Object],[object Object]

106. What principle takes advantage of impact and reaction forces? ,[object Object],[object Object],[object Object],[object Object]

107. Changes in ____ ______ cause changes in fuel flow. ,[object Object],[object Object],[object Object],[object Object]

108. Changes in fuel flow will cause changes in _______ of the gases entering the turbine rotors. ,[object Object],[object Object],[object Object],[object Object]

109. Combustion gases impact the gas producer and the turbine rotors inducing _____________________. ,[object Object],[object Object],[object Object],[object Object]

110. An increase in expansion rate/velocity induces an increase in _____ that is transmitted through the N2 gear train as measurable _______. ,[object Object],[object Object],[object Object],[object Object]

111. Which section of the engine is the primary structural member of the engine? ,[object Object],[object Object],[object Object],[object Object]

112. What is designed to reduce the high RPM required for horsepower development to more practical RPM at the accessory output pads? ,[object Object],[object Object],[object Object],[object Object]

113. Which section of the engine is driven by the gas producer gear train? ,[object Object],[object Object],[object Object],[object Object]

114. The fuel pump, gas producer fuel control, starter/generator, oil pump, tachometer generator, and the standby generator (only on the IFR configuration) are driven by what gear train? ,[object Object],[object Object],[object Object],[object Object]

115. The freewheeling unit, the torque meter, the governor, and the tachometer generator are driven by what gear train? ,[object Object],[object Object],[object Object],[object Object]

116. The N1 and N2 tachometer generators produce what kind of voltage? ,[object Object],[object Object],[object Object],[object Object]

117. The starter portion of the starter/generator is used to “crank” the ____ _____ _____ during the start sequence. ,[object Object],[object Object],[object Object],[object Object]

118. The generator portion of the starter/generator provides ____ ____ voltage to all of the helicopter’s electrical systems plus it re-charges the ___ _____. ,[object Object],[object Object],[object Object],[object Object]

119. How are the gas producer fuel control and the governor integrated? ,[object Object],[object Object],[object Object],[object Object]

120. What is the purpose of the burner drain valve? ,[object Object],[object Object],[object Object],[object Object]

121. The purpose of the dual accumulator-double check valve is to ____ _____ ______ from the main rotor system. ,[object Object],[object Object],[object Object],[object Object]

122. Where is the combustions gas temperature measured on the C20-J turbine engine? ,[object Object],[object Object],[object Object],[object Object]

123. Where is the engine oil temperature measured? ,[object Object],[object Object],[object Object],[object Object]

124. How is the engine oil pressure measured? ,[object Object],[object Object],[object Object],[object Object]

125. How is the engine torque measured? ,[object Object],[object Object],[object Object],[object Object]

126. Which engine bearings are externally lubricated? ,[object Object],[object Object],[object Object],[object Object]

127. How many engine oil chip detectors will activate the ENG Chip caution light? ,[object Object],[object Object],[object Object],[object Object]

128. The auxiliary oil filter has a “pop-up” feature that activates at __ PSID. ,[object Object],[object Object],[object Object],[object Object]

129. After completing lubrication, oil is scavenged into a sump below the number __ and __ bearings and at the bottom of the gear case. ,[object Object],[object Object],[object Object],[object Object]

130. How many engine oil bypasses are there? ,[object Object],[object Object],[object Object],[object Object]

131. How many “wet” lines are there associated with the engine oil system? ,[object Object],[object Object],[object Object],[object Object]

132. Is defined as a decrease in N2 RPM that exists between the time a demand for power is made and the time that power is delivered? ,[object Object],[object Object],[object Object],[object Object]

133. Is droop allowed to exist? ,[object Object],[object Object],[object Object],[object Object]

134. How is droop compensated for? ,[object Object],[object Object],[object Object],[object Object]

135. Why is the engine mounted horizontally behind the transmission ,[object Object],[object Object],[object Object],[object Object]

136. How are three bipod mounts used to secure the engine? ,[object Object],[object Object],[object Object],[object Object]

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