401 From what is true altitude derived?
O Pressure altitude.
O Density altitude.
O Critical altitude.
O Mach number compensated for true temperature.
402 What is QNH?
O Sea level pressure.
O Measured ambient pressure at the airfield elevation.
O Q-code for hellicopters.
O Sea level pressure in ISA conditions .
403 What is QNH?
O The pressure to be set on the altimeter subscale, to obtain an indication of ambient sea level pressure.
O The pressure to be set on the altimeter subscale to obtain an indication of zero on the runway.
O The pressure to be set on the altimeter subscale to obtain a reading of the pressure altitude of the runway.
O The pressure to be set on the altimeter subscale to obtain density altitude when on the runway.
404 The pressure altitude of the field can be found by?
O Setting QNH on the altimeter subscale.
O Setting QFE on the altimeter subscale.
O Setting 1013 hPa on the altimeter subscale.
O Setting QUJ on the altimeter subscale.
405 A barometric altimeter is consisted of?
O An aneroid capsule sensing static pressure.
O An aneroid capsule sensing pitot and dynamic pressure.
O A differential capsule sensing pitot static pressure compensated for temperature.
O A bellows type sensing temperature and static pressure.
406 (Fig.13) If QNH is 998 hPa, what is the pressure altitude at an elevation of 18000 ft?
O 18450 ft.
O 20000 ft.
O 17550 ft.
O 18000 ft.
407 (Fig.13) If pressure altitude is 13600 ft, at an elevation of 12000 ft, what is QNH?
O 960 hPa.
O 976 hPa.
O 1000 hPa.
O 1024 hPa.
408 (Fig.13) If field elevation is 4700 ft amsl and QNH is 903 hPa, what is the pressure altitude?
O 8000 ft.
O 5600 ft.
O 4700 ft.
O 3800 ft.
409 If QNH changes from 1015 hPa to 1030 hPa will?
O Increase QNH.
O Increase field elevation.
O Not affect QNH.
O Decrease QNH.
410 As pressure altitude increases?
O Temperature decreases then remains constant.
O Temperature is unaffected.
O Temperature increases rapidly.
O Temperature increases then remains constant.
411 Pressure altitude is?
O The altimeter indication when 1013.25 hPa is set on the sub-scale.
O The lowest pressure observed in the centre of a dipression.
O The altimeter indication when QFE is set on the sub-scale.
O The altimeter indication when QNH is set on the subscale.
412 If QNH changes from 1009 hPa to 1018 hPa this will?
O Not affect field elevation.
O Decrease field elevation.
O Decrease QFE.
O Pressure altitude corrected for temperature.
O True altitude corrected for density.
O Cabin altitude corrected for density.
O Temperature altitude corrected for pressure.
414 (Fig.7) How will altimeter reading be affected if the static vent pipe becomes blocked?
O Readings will freeze.
O Reads absolute zero.
O Read higher than true.
O Read lower than true.
415 (Fig.7) If icing, debris or insects would cause pressure disturbances at the static source, the effect will be?
O Increased position error.
O Instrument damage.
O Increased instrument error.
O Decreased altitude indication.
416 (Fig7.) If an aircraft flying at constant height over a level surface, meets a hotter-than ISA- air mass, the altimeter will?
O Indicate lower than true.
O Indicate higher than true.
O Indicate false readings.
O Indicate the same.
417 (Fig.7) In a barometric altimeter…………. is fed into the capsule and .............. is fed into the case?
O Vacuum static pressure.
O Static pressure dynamic pressure.
O Dynamic pressure vacuum.
O Ram air static pressure.
418 (Fig.7) If the static pressure source in an un-pressurised aircraft became blocked the altimeter would...........but might be rectified by..........?
O Freeze break the altimeter glass.
O Read zero break the altimeter glass.
O Read zero open the windows.
O Freeze descending to lower altitudes.
419 (Fig.7) Barometric altimeter readings can become erratic during landing because?
O Static pressure is changed by ground effect.
O Static ports can become blocked by debris,
O Due to increased angle of attack.
O Static ports become shielded by other parts of the aircraft at high angles of attack.
420 (Fig.7) What type of pressure sensor is employed in a barometric altimeter?
O Aneroid capsule.
O Mercury type.
O Synthetic or metallic bellows.
O Bourdon helical tube.
421 (Fig.7) If the pressure feed line to a barometric altimeter becomes detached from the back of the instrument in flight the instrument will?
O Read cabin altitude.
O Freeze
O Over read.
O Under read.
422 (Fig.8) If the pitot pipe becomes partly blocked?
O The VSI will not be actually affected.
O The VSI indication will be too low when climbing.
O The VSI will be too low when descending.
O The VSI will have low respond time when descending and too high when climbing.
423 (Fig.8) If the static pipe becomes partly blocked?
O The VSI indication will be too low when climbing or descending.
O The VSI indication will be too high when entering a thermal.
O The VSI indication will be too high when coring a thermal.
O The VSI indication will be unaffected in turbulence.
424 (Fig.6) The correct action to be taken when the static vent blocks on an unpressurised light aircraft is to?
O Use the standby static source.
O Break the VSI glass.
O Use altimeter for vertical speed indications.
O Open a window to equalise pressures.
425 (Fig.8) A VSI?
O Measures the difference between the pressure inside and outside a capsule.
O Measures the accelerations difference and converts to vertical speed indications.
O Measures the difference between total pressure and static pressure.
O Measures only dynamic pressure.
426 (Fig.8) A VSI indicates increasing rate of descent (ROD), by?
O VSI needle moving downwards.
O VSI needle moving upwards, then downwards.
O VSI needle stationary and the warning light is blinking.
O The VSI indicates only vertical speeds, not accelerations.
427 (Fig.8) As an aircraft moves close to the ground during a landing the VSI might?
O Become inaccurate due to ground effect.
O Become inaccurate due to turbulence.
O Stick due to loss of pitot pressure reference.
O Become inaccurate due to aircraft attitude decelerations.
428 (Fig.8) If the static pipe becomes partly blocked?
O The VSI indication will be too low when descending.
O The VSI indication will be too high when descending.
O The VSI indication will be too high when accelerating at constant altitude.
O The VSI indication will have erratic indications during level flight.
429 (Fig.8) If the pitot pipe becomes partly blocked?
O The VSI will be unaffected.
O The VSI will over read when climbing or descending.
O The VSI will over under read at all times.
O The VSI will read zero since vacuum does not respond properly.
430 (Fig.4) If the pitot source and drain become blocked by ice when in cruise flight, how will the ASI respond when descending?
O It will under read.
O It will over read due to accelerations.
O It will read zero in all flight conditions.
O It will freeze or remain fixed at the reading at which it became blocked.
431 (Fig.4) In an ASI system, what does the pitot probe sense?
O Total pressure.
O Differential pressure.
O Static pressure.
O Ambient pressure.
432 (Fig.2) What are indicated by the lower and upper ends of the white arc on an ASI?
O Vso and Vfe
O Vfe and Vfo.
O Vs and Vfe.
O Vno and Vne.
433 What exactly speed, is VNO?
O That which may only be exceeded with caution and only in still air.
O That which may never be exceeded.
O That which may be exceeded only in emergencies.
O The maximum at which fully control deflection is possible without overstressing the aircraft structure.
434 (Fig.5) What will be the effect if the drain hole and pitot tapping in a pitot probe are blocked, whilst the static source remains open?
O The ASI will respond to changes in cabin or just pressure altitude only.
O The ASI will not respond at all.
O The ASI will under read at all speeds normally since alternate static source exist.
O The ASI will over read when accelerating, decelerating, climbing or descending.
435 (Fig.2) What do the upper and lower limits of the yellow arc on an ASI represent?
O VNO and VNE.
O VFE and UFO.
O VM0 and VNE.
O VN0 and VMO.
436 VFE is the?
O Maximum speed at which the aircraft is permitted to fly with its flaps extended.
O Maximum speed at which the flaps can be extended or retracted.
O The minimum speed for flaps up flight retracted.
O The maximum speed with 10° flaps extend.
437 RAS is?
O IAS corrected for position error and instrument error.
O GS corrected for position error and compressibility error.
O TAS corrected for instrument error and ram effect.
O IAS corrected for density error and position error.
438 (Fig.4) If the pitot pipe becomes partly blocked?
O The IAS reading will be too low when descending and too high when climbing.
O The IAS reading will be erratic when climbing.
O The IAS reading will be freezed.
O The IAS reading will be too low at all times.
439 (Fig.4) If the pitot pipe becomes partly blocked?
O The IAS will be too low when accelerating.
O The IAS will be unaffected.
O The IAS will be too low when decelerating.
O The IAS will be too low at all faces of flght.
440 (Fig.11) If the static pipe becomes partly blocked?
O The IAS and ROC will be too low when climbing.
O The IAS and ROC will be too low when descending.
O The IAS and ROC will be too low at all faces of flght.
O The IAS will be be unaffected.
441 The pitot source in an ASI system provides?
O Dynamic pressure.
O Kinetic energy and inertia.
O Kinetic pressure.
442 (Fig.2) The yellow arc on an ASI indicates?
O VNo at lower end and VNe at upper end.
O Vne at lower end and Vmo at upper end.
O Vle at lower end and Vfe at upper end.
O Vmd at lower end and Vmp at upper end.
443 RAS is IAS corrected for?
O Position error.
O Instrument error.
O Compressibility error.
O Density error.
444 (Fig.2) What does the white arc on an ASI indicate?
O Vso at the lower end and Vfe at the upper end.
O Vso at the lower end and Vmd at the upper end.
O Vsi at the lower end and Vfe at the upper end.
O Vsi at the lower end and Vmd at the upper end.
445 (Fig.2) Where on an ASI is VFE indicated?
O The upper end of the white arc.
O The lower end of the yellow arc.
O The blue arc limit.
O The upper red dead line.
446 (Fig.2) Where on an ASI is VNO indicated?
O Upper end of green mark and lower end of yellow arc.
O Lower end of green arc and upper end of white arc.
O Upper end of white arc and lower end of green arc.
O Upper end of red arc and lower end of yellow arc.
447 VNEis?
O The speed that must never be exceeded.
O The maximum speed for normal operations.
O The maximum speed with flaps extended.
O The maximum speed flying in turbulence.
448 What is VFE?
O The maximum speed for flight with the flaps extended.
O The maximum speed for extending or retracting flaps, applied only to B class aeroplanes as categorized by JAR's.
O The maximum permissible speed for the whole flight envelope.
O The minimum speed for extending or retracting the flaps.
449 (Fig.2) What does the green arc on an ASI indicate?
O Vsi at the lower end and Vno at the upper end.
O Vx at the lower end and Vy at the upper end.
O Vfe at the lower end and Vfo at the upper end.
O Vsi at the lower end and Mmd at the upper end.
450 VN0 is the maximum…………………………………?
O Maximum cruise speed in the entire flight envelope.
O Maximum operating speed at operating ceiling.
O Maximum emergency speed at absolute ceiling.
O Maximum permissible speed during spiral dive.
451 (Fig.2) Vne is.......................and is indicated by the.......................on an ASI?
O never exceed speed / red radial line at the upper end of the yellow arc.
O never entry spin speed / upper end of white arc.
O maximum flat spin speed / lower end of green arc.
O normal endurance speed / green radial at the upper end of the green arc.
