561. H767 PVT If the pilot experiences ground resonance, and the rotor r.p.m. is not sufficient for flight, A) open the throttle full and liftoff. B) apply the rotor brake and stop the rotor as soon as possible. C) attempt to takeoff at that power setting. 562. A01 PVT With respect to the certification of aircraft, which is a class of aircraft? A) Airplane, rotorcraft, glider, balloon. B) Normal, utility, acrobatic, limited. C) Transport, restricted, provisional. 563. H719 PVT (Refer to figures 45 and 46.) What is the condition of the weight and balance of the gyroplane as loaded? WEIGHT MOMENT (LB) (1000) Empty weight 1,074 85.6 Oil, 6 qt --- 1.0 Pilot and passenger 247 --- Fuel, 12 gal --- --- Baggage 95 --- A) Within limits. B) Overweight. C) Out of limits aft. 564. H703 PVT When a blade flaps up, the CG moves closer to its axis of rotation giving that blade a tendency to A) decelerate. B) accelerate. C) stabilize its rotational velocity. 565. H705 PVT The primary purpose of the tail rotor system is to A) assist in making a coordinated turn. B) maintain heading during forward flight. C) counteract the torque effect of the main rotor. 566. H703 PVT The purpose of the lead-lag (drag) hinge in a three-bladed, fully articulated helicopter rotor system is to compensate for A) Coriolis effect. B) coning. C) geometric unbalance. 567. H748 PVT When operating at high forward airspeeds, retreating blade stalls are more likely to occur under which condition? A) Low gross weight and low density altitude. B) High RPM and low density altitude. C) Steep turns in turbulent air. 568. H703 PVT Translational lift is the result of A) decreased rotor efficiency. B) airspeed. C) both airspeed and groundspeed. 569. H703 PVT During a hover, a helicopter tends to drift to the right. To compensate for this, some helicopters have the A) tail rotor tilted to the left. B) tail rotor tilted to the right. C) rotor mast rigged to the left side. 570. H748 PVT The maximum forward speed of a helicopter is limited by A) retreating blade stall. B) the rotor RPM red line. C) solidity ratio. 571. H720 PVT With calm wind conditions, which flight operation would require the most power? A) A right-hovering turn. B) A left-hovering turn. C) Hovering out of ground effect. 572. H705 PVT If RPM is low and manifold pressure is high, what initial corrective action should be taken? A) Increase the throttle. B) Lower the collective pitch. C) Raise the collective pitch. 573. H928 PVT Which would most likely cause the cylinder head temperature and engine oil temperature gauges to exceed their normal operating ranges? A) Using fuel that has a lower-than-specified fuel rating. B) Using fuel that has a higher-than-specified fuel rating. C) Operating with higher-than-normal oil pressure. 574. H927 PVT What type fuel can be substituted for an aircraft if the recommended octane is not available? A) The next higher octane aviation gas. B) The next lower octane aviation gas. C) Unleaded automotive gas of the same octane rating. 575. H727 PVT During surface taxiing, the collective pitch is used to control A) drift during a crosswind. B) rate of speed. C) ground track. 576. H727 PVT During surface taxiing, the cyclic pitch stick is used to control A) forward movement. B) heading. C) ground track. 577. J11 PVT Select the UNICOM frequencies normally assigned to stations at landing areas used exclusively as heliports. A) 122.75 and 123.65 MHz. B) 123.0 and 122.95 MHz. C) 123.05 and 123.075 MHz. 578. H746 PVT Which is a precaution to be observed during an autorotative descent? A) Normally, the airspeed is controlled with the collective pitch. B) Normally, only the cyclic control is used to make turns. C) Do not allow the rate of descent to get too low at zero airspeed. 579. H742 PVT What is the procedure for a slope landing? A) When the downslope skid is on the ground, hold the collective pitch at the same position. B) Minimum RPM shall be held until the full weight of the helicopter is on the skid. C) When parallel to the slope, slowly lower the upslope skid to the ground prior to lowering the downslope skid. 580. H747 PVT (Refer to figure 47.) Which airspeed/altitude combination should be avoided during helicopter operations? A) 30 MPH/200 feet AGL. B) 50 MPH/300 feet AGL. C) 60 MPH/20 feet AGL.

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