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2. Performance
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Questions in this quiz (22)
187) The danger associated with low speed and/or high speed buffet
- Alimits the maneuvering load factor at high altitudes.
- Bcan be reduced by increasing the load factor.
- Cexists only above MMO.
- Dhas to be considered at take-off and landing.
276) Given a jet aircraft. Which order of increasing speeds in the performance diagram is correct?
- AVs, Maximum range speed, Vx
- BMaximum endurance speed, Maximum range speed, Vx
- CVs, Vx, Maximum range speed
- DMaximum endurance speed, Long range speed, Maximum range speed
377) If the climb speed schedule is changed from 280/.74 to 290/.74 the new crossover altitude is
- Aunchanged.
- Bonly affected by the aeroplane gross mass.
- Clower.
- Dhigher.
478) Reduced take-off thrust should normally not be used when:
- Ait is dark.
- Bthe runway is wet.
- Cobstacles are present close to the end of the runway.
- Dthe runway is contaminated.
579) Which data can be extracted from the Buffet Onset Boundary Chart?
- AThe value of the Mach number at which low speed and shockstall occur at various weights and altitudes.
- BThe values of the Mach number at which low speed and Mach buffet occur at various masses and altitudes.
- CThe value of maximum operating Mach number (MMO) at various masses and power settings.
- DThe value of the critical Mach number at various masses and altitudes.
680) With zero wind, the angle of attack for maximum range for an aeroplane with turbojet engines is:
- Aequal to that of maximum lift to drag ratio.
- Bequal to that maximum endurance.
- Cequal to that corresponding to zero induced drag.
- Dlower than that of maximum lift to drag ratio.
781) The speed V2 is defined for jet aeroplane as
- Atake-off climb speed or speed at 35 ft.
- Blift off speed.
- Ctake-off decision speed.
- Dcritical engine failure speed.
882) An increase in atmospheric pressure has, among other things, the following consequences on take-off performance:
- Aa reduced take-off distance and degraded initial climb performance
- Ba reduced take-off distance and improved initial climb performance
- Can increases take-off distance and degraded initial climb performance
- Dan increased take-off distance and improved initial climb performance
983) The induced drag of an aeroplane at constant gross weight and altitude is highest at
- AVSO (stalling speed in landing configuration)
- BVS1 (stalling speed in clean configuration)
- CVMO (maximum operating limit speed)
- DVA (design manoeuvring speed)
1084) On a twin engined piston aircraft with variable pitch propellers, for a given mass and altitude, the minimum drag speed is 125 kt and the holding speed (minimum fuel burn per hour) is 95 kt.
The best rate of climb speed will be obtained for a speed:- Ainferior to 95 kts
- Bis between 95 and 125 kt
- Cequal to 125 kt
- Dequal to 95 kt
1198) Which one of the following is not affected by a tail wind?
- Athe field limited take-off mass.
- Bthe obstacle limited take-off mass.
- Cthe take-off run.
- Dthe climb limited take-off mass.
1286) In a steady descending flight (descent angle GAMMA) equilibrium of forces acting on the aeroplane is given by: (T = Thrust, D = Drag, W = Weight)
- AT + D = - W sin GAMMA
- BT + W sin GAMMA = D
- CT - W sin GAMMA = D
- DT - D = W sin GAMMA
1388) The pilot of a light twin engine aircraft has calculated a 4 000 m service ceiling, based on the forecast general conditions for the flight and a take-off mass of 3 250 kg.
If the take-off mass is 3 000 kg, the service ceiling will be:- Aless than 4 000 m.
- Bunchanged, equal to 4 000 m.
- Conly a new performance analysis will determine if the service ceiling is higher or lower than 4 000 m.
- Dhigher than 4 000 m.
1489) Consider the graphic representation of the power required versus true air speed (TAS), for a jet aeroplane with a given mass. When drawing the tangent out of the origin, the point of contact determines the speed of:
- Acritical angle of attack.
- Bmaximum endurance.
- Cminimum power.
- Dmaximum specific range.
1590) Which of the following statements is correct ?
- AIf a clearway or a stopway is used, the liftoff point must be attainable at least at the end of the permanent runway surface.
- BA stopway means an area beyond the take-off runway, able to support the aeroplane during an aborted take-off.
- CAn underrun is an area beyond the runway end which can be used for an aborted take-off.
- DA clearway is an area beyond the runway which can be used for an aborted take-off.
1691) What effect has a downhill slope on the take-off speeds?
The slope- Ahas no effect on the take-off speed V1.
- Bdecreases the take-off speed V1.
- Cdecreases the TAS for take-off.
- Dincreases the IAS for take-off.
1792) The load factor in a turn in level flight with constant TAS depends on
- Athe radius of the turn and the bank angle.
- Bthe true airspeed and the bank angle.
- Cthe radius of the turn and the weight of the aeroplane.
- Dthe bank angle only.
1893) Which of the following factors determines the maximum flight altitude in the "Buffet Onset Boundary" graph?
- AAerodynamics.
- BTheoretical ceiling.
- CService ceiling.
- DEconomy.
1995) What is the most important aspect of the 'backside of the power curve'?
- AThe elevator must be pulled to lower the nose.
- BThe speed is unstable.
- CThe aeroplane will not stall.
- DThe altitude cannot be maintained.
20121) How does the lift coefficient for maximum range vary with altitude?
(No compressibility effects.)- AThe lift coefficient decreases with increasing altitude.
- BThe lift coefficient increases with increasing altitude.
- COnly at low speeds the lift coefficient decreases with increasing altitude.
- DThe lift coefficient is independant of altitude.
2185) How does TAS vary in a constant Mach climb in the troposphere?
- ATAS increases.
- BTAS is constant.
- CTAS is not related to Mach Number.
- DTAS decreases.
22155) The landing reference speed VREF has, in accordance with international requirements, the following margins above stall speed in landing configuration:
- A15%
- B20%
- C10%
- D30%
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- Tema 1 Performances Quiz on 2. Performance, created by Jose Antonio Vazquez on 01/11/2018.
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- Jose Antonio Vazquez
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