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73 Cards in this Set
- Front
- Back
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The high speed and low tourque of the turbine wheel in an air turbine starter are converted in to low speed and high tourque at the output shaft by which of the following components?
A. rotating assembly B. reduction gear assembly C. inward-flow turbine wheel D. igv assembly |
B
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What is the fundamental advantage of the helicopter over conventional aircraft?
A. Its ability to hover low B. its ability to hover over water C. its movement independent of foward speed D. none of the above |
C
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The main diffrence in fixed wing and rotary wing aircrafts is the way lift is achieved.
True or False |
True
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During which of the following flight maneuvers is there a component of velocity parallel to the axis of the rotor?
A. moving backwards B. moving fowards C. hovering D. rising |
D
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Tourque effect is greatest under which of the following conditions?
A. during autorotation B. During descents at idle power C. During high powered take-off D. during landings |
C
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A vertical tail rotor is used for which of the following conditions?
A. To reduce tourque produced by coaxial rotors B. to Counteract main rotor tourque and to provide directional control C. to create additional lift by reducing effective tourque |
B
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Decreasing lift on the advancing blade and increasing lift on the retreating blade is known as
A. dissymmetry B. Conning C. Blade Flapping D. autorotation |
C
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What is the primary purpose of blade flapping?
A. to equalize the lift over the rotor disc halves B. to shorten the takeoff and landing distance C. to prevent rotor vibration D. to assist the action of the tail rotor |
A
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A main rotor that allows each of its blades to move vertically and horizontally is known as what type of rotor?
A. adjustable B. horizonatal C. hinged D. articulated |
D
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Upward bending of rotor blades is known as
A. dissemmetry B. flapping c. coning D. Lift |
C
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A mechanical offset linkage compensates for which of the following conditions?
A. power setting B. ground effect C. conning d. gyroscopic precession |
D
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At what time is the ground cusion or ground effect most effective?
A. when the helo speed is more then 10 mph B. when the helo is accelerating C. when the helo is at a height of less then one half of the rotor diameter D. when the helo is moving sideways |
C
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The uncontrolled loss of altitude in a helo is referred to as stalling.
True or False |
False
Note it is power settling |
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The lift of the rotor is affected by the length of the rotor in what manner?
A. Lift is directly proportional to the length of the rotor B. lift is proportional to the square of the length of the rotor C. ten times the lift by doubling the length of the rotor blades |
B
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What happens to the power requirments as the length of the blade increases?
A. increases B. decreases c. same D. varies |
A
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The high speed and low tourque of the turbine wheel in an air turbine starter are converted in to low speed and high tourque at the output shaft by which of the following components?
A. rotating assembly B. reduction gear assembly C. inward-flow turbine wheel D. igv assembly |
B
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What is the fundamental advantage of the helicopter over conventional aircraft?
A. Its ability to hover low B. its ability to hover over water C. its movement independent of foward speed D. none of the above |
C
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The main diffrence in fixed wing and rotary wing aircrafts is the way lift is achieved.
True or False |
True
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During which of the following flight maneuvers is there a component of velocity parallel to the axis of the rotor?
A. moving backwards B. moving fowards C. hovering D. rising |
D
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Tourque effect is greatest under which of the following conditions?
A. during autorotation B. During descents at idle power C. During high powered take-off D. during landings |
C
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A vertical tail rotor is used for which of the following conditions?
A. To reduce tourque produced by coaxial rotors B. to Counteract main rotor tourque and to provide directional control C. to create additional lift by reducing effective tourque |
B
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Decreasing lift on the advancing blade and increasing lift on the retreating blade is known as
A. dissymmetry B. Conning C. Blade Flapping D. autorotation |
C
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What is the primary purpose of blade flapping?
A. to equalize the lift over the rotor disc halves B. to shorten the takeoff and landing distance C. to prevent rotor vibration D. to assist the action of the tail rotor |
A
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A main rotor that allows each of its blades to move vertically and horizontally is known as what type of rotor?
A. adjustable B. horizonatal C. hinged D. articulated |
D
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Upward bending of rotor blades is known as
A. dissemmetry B. flapping c. coning D. Lift |
C
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A mechanical offset linkage compensates for which of the following conditions?
A. power setting B. ground effect C. conning d. gyroscopic precession |
D
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At what time is the ground cusion or ground effect most effective?
A. when the helo speed is more then 10 mph B. when the helo is accelerating C. when the helo is at a height of less then one half of the rotor diameter D. when the helo is moving sideways |
C
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The uncontrolled loss of altitude in a helo is referred to as stalling.
True or False |
False
Note it is power settling |
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The lift of the rotor is affected by the length of the rotor in what manner?
A. Lift is directly proportional to the length of the rotor B. lift is proportional to the square of the length of the rotor C. ten times the lift by doubling the length of the rotor blades |
B
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What happens to the power requirments as the length of the blade increases?
A. increases B. decreases c. same D. varies |
A
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The high speed and low tourque of the turbine wheel in an air turbine starter are converted in to low speed and high tourque at the output shaft by which of the following components?
A. rotating assembly B. reduction gear assembly C. inward-flow turbine wheel D. igv assembly |
B
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What is the fundamental advantage of the helicopter over conventional aircraft?
A. Its ability to hover low B. its ability to hover over water C. its movement independent of foward speed D. none of the above |
C
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The main diffrence in fixed wing and rotary wing aircrafts is the way lift is achieved.
True or False |
True
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During which of the following flight maneuvers is there a component of velocity parallel to the axis of the rotor?
A. moving backwards B. moving fowards C. hovering D. rising |
D
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Tourque effect is greatest under which of the following conditions?
A. during autorotation B. During descents at idle power C. During high powered take-off D. during landings |
C
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A vertical tail rotor is used for which of the following conditions?
A. To reduce tourque produced by coaxial rotors B. to Counteract main rotor tourque and to provide directional control C. to create additional lift by reducing effective tourque |
B
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Decreasing lift on the advancing blade and increasing lift on the retreating blade is known as
A. dissymmetry B. Conning C. Blade Flapping D. autorotation |
C
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What is the primary purpose of blade flapping?
A. to equalize the lift over the rotor disc halves B. to shorten the takeoff and landing distance C. to prevent rotor vibration D. to assist the action of the tail rotor |
A
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A main rotor that allows each of its blades to move vertically and horizontally is known as what type of rotor?
A. adjustable B. horizonatal C. hinged D. articulated |
D
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Upward bending of rotor blades is known as
A. dissemmetry B. flapping c. coning D. Lift |
C
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A mechanical offset linkage compensates for which of the following conditions?
A. power setting B. ground effect C. conning d. gyroscopic precession |
D
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At what time is the ground cusion or ground effect most effective?
A. when the helo speed is more then 10 mph B. when the helo is accelerating C. when the helo is at a height of less then one half of the rotor diameter D. when the helo is moving sideways |
C
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The uncontrolled loss of altitude in a helo is referred to as stalling.
True or False |
False
Note it is power settling |
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The lift of the rotor is affected by the length of the rotor in what manner?
A. Lift is directly proportional to the length of the rotor B. lift is proportional to the square of the length of the rotor C. ten times the lift by doubling the length of the rotor blades |
B
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What happens to the power requirments as the length of the blade increases?
A. increases B. decreases c. same D. varies |
A
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What force increases as the pitch increases?
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Lift
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Density altitude refers to the altitude corrected for atmospheric conditons.
True or False |
True
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Helicopter flight controls consist of what system(s)?
A. cyclic pitch control B. rotary rudder flight control C. cyclic pitch control, collective pitch control, and rotary rudder flight control systems D. none of the above |
C
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What control system provides the means of controlling the lateral movement of the helo?
Cyclic or collective |
Cyclic
Note Collective control system increases the pitch of all rotary wing blades equally and simultaneously |
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The most common navy helo has what type of rotor?
A. Coaxial B. tandem C. single main D. dual main |
C
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The T700-GE-401 is a member of of the new generation of aviation propulsion system.
True or false |
true
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What type of engine construction contributes to increased engine availability by decreasing component repair turn around time?
A. modular B. vertical C. piecemeal D. horizontal |
A
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The t700 has a front drive power power drive shaft. the t58 has what?
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rear drive power drive shaft
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What component of the IPS system actually causes foreign material to be dumped overboard?
A. swirl frame B. scroll case C. fixed swirl vanes D. engine driven blower |
D
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What type of combustion section is used in the t-700-ge-401 turbo shaft?
A. can B. annular C. can annular D. dual annular |
B
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What turbine or turbine stages drive the main gear box in the sh-60
A. stage one B. stages one and two c. power turbine d. gas generator turbine |
C
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Momentary movement of the power control lever tot he lockout posistion provides manual control for which of the following engine parameters?
A. Ng and tgt B. np and p3 C. ng and np D. tgt and p3 |
C
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What movements of the power lever are required to return to the automatic mode of engine control?
A. Idle and back to fly B. Lockout and back to fly C. idle and back to lockout D. none |
A
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When the rotary wing head is disengaged in the sh-3, by what means are the accessories driven?
A. # 1 engine B. # 2 engine C. freewheeling unit D. none of the above |
C
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The electromagnetic chip detector/drain plug in the intermediate gearbox also detects overheating within the gearbox.
True or false |
true
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By what means are the intermediate and tail gear gearboxes lubricated and cooled?
A. spray and fan B. splash and air C. spray and air D. splash and fan |
B
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The primary purpose of the tail drive shaft is to...
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transmit engine engine power to the rotary rudder
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What components in the tail drive system eliminate the need for universal joints?
A. pulleys B. cable drives C. flexible shafts D. thomas couplings |
D
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How is the main rotor brake applied?
A. Manually or automatically B. manually or hydraulically C. electrically or pneumatically D. Electrically or automatically |
A
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What NDI inspection method is used when inspecting blended areas on the bell crank support mounting pads?
A. magnetic particle B. fluorescent dye penetrant C. visible dye penetrant D. x-ray |
B
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What drive shaft repair, if any, is allowed on the tail drive shafts?
A. the end coupling joints B. the outside diameter of the tubular shaft C. the inside diameter of the tubular shaft D. none |
B
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What are the two types of rotary wing heads?
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Grease lubricated and self lubricated
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Which of the following components permit movement of the flight controls to be transmitted to the rotary wing blades?
A. swash plate and antiflap restrainers B. rotary scissors and droop restrainers C. adjustable pitch control rods and stationary scissors D. swash plate and adjustable pitch control rods |
D
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Which of the following functions is performed by the damper-positioners?
A. they restrict blade flapping motion B. they permit blade lead and lag motion C. they restrict blade lead and lag motion D. they permit blade rotation on its span-wise axis |
C
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The blade must be replaced anytime the bim shows an unsafe indication.
true or false |
true
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which of the following conventional flight controls is/are replaced by the tail rotor?
A. Ailerons B. Elevator C. Rudder D. Flaps |
C
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Blade tracking is necessary to prevent what problem?
A. vibration and structural damage B. overlapping C. flexing D. conning |
A
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Stobex method and electronic tracking method provides in-flight blade check/tracking.
True or False |
True
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