How air-brained are you?

Pilot - - AUGUST 2016 - By James Al­lan

You are pi­lot­ing an air­craft with a fuel-in­jected en­gine and no­tice that the head tem­per­a­ture of one cylin­der is sig­nif­i­cantly hot­ter than the oth­ers. What is most likely to be the cause of this over­heat­ing? a dam­aged or in­cor­rectly in­stalled baf­fle b en­gine oil level be­low min­i­mum c clogged in­jec­tor d air­speed too low

What is the func­tion of the ‘scav­enge pump’ which is fit­ted to some types of air­craft? a it is an­other name for an in­stru­ment sys­tem

vac­uum pump b it ex­tracts what­ever has been de­posited in

air­liner toi­lets c it draws oil from the crank­case of cer­tain

types of en­gine d it re­moves hu­mid­ity and odours from the

air of pres­surised cabins

While fly­ing close to and slightly above a layer of cloud, a pi­lot some­times sees a clearly de­fined shadow of the air­craft com­pletely en­cir­cled by a ring of coloured light. What name is usu­ally given to this phe­nom­e­non? a halo d ring rain­bow b op­ti­cal il­lu­sion e Brocken spec­tre c glory

Which of the fol­low­ing state­ments con­cern­ing ‘land and sea breezes’ is/are true? a sea breezes only blow dur­ing the hours of

dark­ness b after dusk, land cools more rapidly than sea,

caus­ing a land breeze c sea breezes fre­quently oc­cur on sunny days d dur­ing sunny days, air warms up quicker over sea than over land, cre­at­ing a land breeze

If two air­craft were to make non-stop round-the-world flights at a con­stant altitude along the same great cir­cle route but one flew 1,000 feet higher than the other, ap­prox­i­mately what would be the dif­fer­ence in the cir­cu­lar dis­tances flown by them? a the dis­tances would be iden­ti­cal b 1 nau­ti­cal mile c 10 nau­ti­cal miles d 60 nau­ti­cal miles

If an air­borne air­craft is seen re­peat­edly switch­ing its nav­i­ga­tion lights on and off (in a man­ner clearly dif­fer­ent from the nor­mal flashing of strobe lights) what does this sig­nal by the air­craft com­man­der in­di­cate? a

b c d a lost and re­quir­ing nav­i­ga­tional as­sis­tance b in dif­fi­cul­ties that re­quire the air­craft to land but not in need of im­me­di­ate as­sis­tance c in grave dan­ger and re­quir­ing to land

im­me­di­ately d be­ing hi­jacked

You are pre­par­ing to take off at 1800Z on an ap­prox­i­mately two-hour late evening flight from Welsh­pool (EGCW) to Dundee (EGPN). The lat­est ac­tual for Dundee reads: METAR EGPN 141650Z 08005KT 8000 SKC 14/13 Q1026 = From this, you con­clude that which of the fol­low­ing is/are likely? a the wind will back and strengthen,

cre­at­ing a strong cross wind b light rain will prob­a­bly start to re­duce

vis­i­bil­ity c Dundee will re­tain good VMC for

sev­eral hours d there is a risk of ra­di­a­tion fog form­ing

An­swers

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