521. H1035 PVT A pilot plans to fly solo in the front seat of a two-place glider which displays the following placards on the instrument panel: MINIMUM PILOT WEIGHT: 135 LB MAXIMUM PILOT WEIGHT: 220 LB NOTE: Seat ballast should be used as necessary. The recommended towing speed for all tows is 55 - 65 knots. What action should be taken if the pilot's weight is 125 pounds? A) Add 10 pounds of seat ballast to the rear seat. B) Add 10 pounds of seat ballast. C) Add 45 pounds of seat ballast to obtain the average pilot weight of 170 pounds. 522. H1035 PVT A pilot plans to fly solo in the front seat of a two-place glider which displays the following placards on the instrument panel: MINIMUM PILOT WEIGHT: 135 LB MAXIMUM PILOT WEIGHT: 220 LB NOTE: Seat ballast should be used as necessary. The recommended towing speed for all tows is 55 - 65 knots. What action should be taken if the pilot's weight is 115 pounds? A) Add 20 pounds of seat ballast to the rear seat. B) Add 55 pounds of seat ballast to obtain the average pilot weight of 170 pounds. C) Add 20 pounds of seat ballast. 523. H1034 PVT (Refer to figure 54.) Calculate the weight and balance of the glider, and determine if the CG is within limits. Pilot (fwd seat) 160 lb Passenger (aft seat) 185 lb A) CG 71.65 inches aft of datum - out of limits forward. B) CG 79.67 inches aft of datum - within limits. C) CG 83.43 inches aft of datum - within limits. 524. H720 PVT Which is a result of the phenomenon of ground effect? A) The induced angle of attack of each rotor blade is increased. B) The lift vector becomes more horizontal. C) The angle of attack generating lift is increased. 525. H720 PVT (Refer to figure 47.) What is the best rate-of-climb speed for the helicopter? A) 24 MPH. B) 40 MPH. C) 57 MPH. 526. H747 PVT The principal reason the shaded area of a Height vs. Velocity Chart should be avoided is A) turbulence near the surface can dephase the blade dampers. B) rotor RPM may decay before ground contact is made if an engine failure should occur. C) insufficient airspeed would be available to ensure a safe landing in case of an engine failure. 527. J11 PVT Automatic Terminal Information Service (ATIS) is the continuous broadcast of recorded information concerning A) pilots of radar-identified aircraft whose aircraft is in dangerous proximity to terrain or to an obstruction. B) nonessential information to reduce frequency congestion. C) noncontrol information in selected high-activity terminal areas. 528. B09 PVT Under what conditions, if any, may a private pilot operate a helicopter under special VFR at night within Class D airspace? A) The helicopter must be fully instrument equipped and the pilot must be instrument rated. B) The flight visibility must be at least 1 mile. C) There are no conditions; regulations permit this. 529. P01 PVT Under which condition will an airship float in the air? A) When buoyant force equals horizontal equilibrium existing between propeller thrust and airship drag. B) When buoyant force is less than the difference between airship weight and the weight of the air volume being displaced. C) When buoyant force equals the difference between airship weight and the weight of the air volume being displaced. 530. P11 PVT Which takeoff procedure is considered to be most hazardous for an airship? A) Maintaining only 50 percent of the maximum permissible positive angle of inclination. B) Failing to apply full engine power properly on all takeoffs, regardless of wind. C) Maintaining a negative angle of inclination during takeoff after elevator response is adequate for controllability. 531. P04 PVT The pressure height of an airship is the altitude at which A) the airship would be unable to gain more altitude. B) gas pressure would reach 3 inches of water. C) the ballonet(s) would be empty. 532. P11 PVT If an airship should experience failure of both engines during flight and neither engine can be restarted, what initial immediate action must the pilot take? A) The airship must be driven down to a landing before control and envelope shape are lost. B) The emergency auxiliary power unit must be started for electrical power to the airscoop blowers so that ballonet inflation can be maintained. C) Immediate preparations to operate the airship as a free balloon are necessary. 533. P01 PVT An airship descending through a steep temperature inversion will A) show no change in superheat as altitude is lost. B) show a decrease in superheat as altitude is lost. C) become progressively lighter, thus becoming increasingly more difficult to drive down. 534. P04 PVT Below pressure height, each 5 �‹F of positive superheat amounts to approximately A) 1 percent of gross lift. B) 2 percent of net lift. C) 2 percent of total lift. 535. P01 PVT What is airship superheat? A) A condition of excessive exterior temperature of the envelope. B) The temperature of the lifting gas exceeding the red line. C) The difference between outside air temperature and the temperature inside the envelope. 536. P11 PVT Which action is necessary in order to perform a normal descent in an airship? A) Valve gas. B) Valve air. C) Take air into the aft ballonets. 537. P01 PVT During flight in an airship, when is vertical equilibrium established? A) When buoyancy is greater than airship weight. B) When buoyancy equals airship weight. C) When buoyancy is less than airship weight. 538. P04 PVT In relation to the operation of an airship, what is the definition of aerostatics? A) The gravitational factors involving equilibrium of a body freely suspended in the atmosphere. B) The science of the dynamics involved in the expansion and contraction of hydrogen gas. C) The expansion and contraction of the lifting gas helium. 539. P04 PVT How does the pilot know when pressure height has been reached? A) Liquid in the gas manometer will rise and the liquid in the air manometer will fall below normal levels. B) Liquid in the gas and air manometers will fall below the normal level. C) Liquid in the gas manometer will fall and the liquid in the air manometer will rise above normal levels. 540. P04 PVT When the airship is at pressure height and superheat increases, constant pressure must be maintained by valving A) gas from the envelope. B) air from the envelope. C) gas from the ballonets.

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