q for paper-ii topic wise from dgca-1

Upload: pritamjit-rout

Post on 19-Feb-2018

226 views

Category:

Documents


0 download

TRANSCRIPT

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    1/27

    Page1

    Preparation for paper II (Otc12)

    PREPERATION FOR PAPER II (OCT.12)

    Questions fromComputers !r"#in$ ATA %o!e et%.&

    Q.1 In an a/c computer system, the data transmission between each componentor between the CPU & the components are because of (Eismina !eria" process b Para""e" processc #ata bus transmission $ d %IIC

    Q.' )C! re*ardin* the data transmission "an*ua*e used in %+IC'-( Eismina inary b inary Coded #iscreet (C#c #iscrete d %"" are correct $

    Q. % co"our C+) uses three e"ectronic beam *uns to achie0e three basic co"orsa +ed, *reen and e""ow b +ed, *reen and b"ue$c +ed, ye""ow and b"ue d 2reen, ye""ow and b"ue

    Q.3 4one numbers of a b"ue print is used for (-%5 6a 7ocate parts, sections & 0iews of a "ar*e drawin* $b Indicate different sections of a/c

    c 7ocate parts in an aircraftQ.8 9hich statement is true re*ardin* the ortho*raphic pro:ections (-% ; -

    a )here are a"ways at "east two 0iewsb it cou"d ha0e ma 9hich %)% chapter dea"s with the structure of the aircraft ( -%5 8>a '1 b 31$ c 3 d 3'

    Q. 6 If in 6?63 microprocessor addressin*, if the address of the operand e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    2/27

    Page2

    Preparation for paper II (Otc12)

    a E In 6?63 microprocessor, if the operand is specified in the instruction itse"fa +e*ister addressin* b #irect addressin* $c +e*ister indirect addressin* d Immediate addressin*

    '"teri" '"inten"n%e

    Q.1 Parco ; 7ubri4in* is the chemica" treatment *i0en fora %"uminum parts b a*nesium partsc Iron & stee" parts d %"" are correct $$

    Q.' %"uminum is most common"y used materia" in the construction of the a/c , Dbecausea i*h stren*th to "ow wei*ht ratio b Ease of fabricationc on ma*netic & e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    3/27

    Page

    Preparation for paper II (Otc12)

    Q. 9hich treatment shou"d be *i0e to )itanium, after heat treatmenta !tress re"ie0in* b Fu"" annea"in* $c )herma" hardenin* d case hardenin*

    Q. )he threads, which run para""e" to the fabric, as it comes off the bo"t, area 9arp$ b 9eft c ias d !a"0a*e

    Q.3 9hat tas@s are comp"eted before wei*hin* an aircraft for determinin* theEmpty wei*hta +emo0e a"" the items, e3H

    Q.1? )he use of f"u< in the so"derin* process is ( 13%a )o reduce the effect of o

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    4/27

    Page!

    Preparation for paper II (Otc12)

    d =n"y ain whee" shou"d ha0e the [email protected] )C! re*ardin* e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    5/27

    Page"

    Preparation for paper II (Otc12)

    a Cab"e "in@a*e has some prob"em, as its tension needs to be ad:ustedfreBuent"yb It has "ow mechanica" stren*thc !tron* in stren*th but hea0y in wei*ht d %"" are correct $

    Q.'8 )he threads c"assified as c"ass ; fitJ is (!hop )heorya 7oose fit b free fit c edium fit $ d c"ose fit

    Q.'> For securin* the "ar*e aircrafts, the suitab"e tie down method is by ( -%a +opes b cab"es c Chains d %"" are correct$

    Q.'6 9hich of the fo""owin* is considered as re*u"ar chec@ for fire e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    6/27

    Page#

    Preparation for paper II (Otc12)

    c a""eabi"ity$ d #ucti"ityQ.1 )he corrosion resistant stee", most used in the aircraft construction is ca""ed

    1656 & contains (-%a 16H ic@e" & 6H chromium b 16H chromium & 6H ic@e"$c 16H 0anadium & 6H chromiumd 16H chromium & 6H 0anadium

    Q.' 9hich spar@ test *i0es strai*ht & few spM..a i*h carbon stee" b edium carbon stee"

    c 7ow carbon stee"$ d one is correctQ. 9hich fi"e is used for interna" an*"e cuttin* (-%5 3>

    a Nnife b )hree5 sBuare$ c 9ard d i""Q.3 )he hydrau"ic portab"e p"ant used for the *round ser0icin* of a/c (-%5 -3

    a Is used for drainin* out the hydrau"ic f"uidb Is used for fi"terin* the hydrau"ic f"uidc Is used for refi""in* of the fi"tered fue" in the aircraft d %"" are correct$

    Q.8 )he f"e 9hich type of cab"e are used in the aircraft for actuatin* the secondary & theen*ine contro"s (-%51a > < >$ b > < 1- c > < 1' d one is correct

    Q.6 In the turn buc@"e, the end identified by a *ro0e or @nur", has which type ofthreads (-%51a +i*ht hand threads b 7eft hand )hreads $c )here are no threads, as it is push "oc@ed.

    Q.- 9hich method is used to re"ie0e the stress corrosion on stressed parts

    a eatin* parts to a specific temperature in an annea"in* o0en and thencoo"in* s"ow"y.$ b y compressi0e stressc eatin* parts to a specific temperature in an annea"in* o0en and thencoo"in* sudden"y d %"" are incorrect

    Q.3? 9hich composite has hi*h tensi"e & "ow compressi0e stren*tha oron b Ne0"ar c %ramid$ d Fiber reinforced

    Q.31 #urin* :ac@in* of the aircrafts, which precaution is to be fo""owed ( -%5 3'a )he aircrafts may be :ac@ed in the "oaded conditionb It shou"d be ensured that a" wor@ stands , eBuipments etc. are remo0edfrom under/ near the aircrafts , so as not to interfere with :ac@in*$c )he aircrafts shou"d not be :ac@ed in the han*ers

    Q.3' 9hi"e in f"i*ht, the position of the fire *uards shou"d be

    a =utboard of en*ine b in 0iew of pi"otc oth (a and (b are correct$ d =n"y (a is correct

    Q.3 %s per the c"assification of fires by F%% , the C"ass fireJ dea"s witha )he f"ammab"e petro"eum products ( -%5 3??

    b )he f"ammab"e combustib"e "iBuidsc F"ammab"e *rease, so"0ent and paints etc d %"" are correct$

    Q.3 )he micrometer can be chec@ed by (-%a )he inside ca"iper b )he 2au*e b"oc@$

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    7/27

    Page$

    Preparation for paper II (Otc12)

    c )he p"u*s d )he easurin* sca"eQ.33 9hich type of screw dri0er, both *rips the screw & rotates it ( -%5 3?

    a )he Phi""ips screw dri0er b )he speed hand"e screw dri0er c cc )he +atchet !crew dri0er$ d one is correct

    Q.38 )he order of the four e0ents in the =tto cyc"e isa Induction, Compression, I*nition and E 9hi"e towin* the speed of the aircraft mo0ement (-%5 31-a !hou"d not e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    8/27

    Page%

    Preparation for paper II (Otc12)

    c )hat the princip"e a""oyin* materia" is !i"icond )hat the princip"e a""oyin* materia" is Copper

    Q.>? )he piston en*ine fires once ina )wo re0o"utions $ b =ne re0o"utionc Four re0o"utions d one is correct

    Q.>1 )he e"ectrochemica" corrosion occurs due to the presence of (-%5 1>'a %node b Cathode c E"ectro"yte d %"" are correct $

    Q.>' )C! re*ardin* the chec@J for "e0e"in* of the aircraftsa )he spirit "e0e" is used for "on*itudina" "e0e"in* by p"acin* at pi"ot seatb )he spirit "e0e" is used for "atera" "e0e"in* by p"acin* at "andin* *ear "atera"c For chec@in* both "atera" & "on*itudina" "e0e"in* , p"umb bob is a"so usedd %"" are correct $

    Q.> )he dama*ed threads are rep"aced by (-% ; 1>a )he threaded bushin* b )he he"ica" insertsc )he fasteners s"ee0e d %"" are correct$

    Q.> In the oi" & cha"@ #) method, the function of the cha"@ is (C%IP 5 Ia It indicates the "ocation of the surface crac@, by chan*e in the co"our

    b )he cha"@ is absorbed by the app"ication of oi"c oth (a and (b are correct$ d =n"y (a is correct

    Q.>3 In !%E ;AAAA series, the first di*it indicates (-%5 1-3a )he type of stee" $ b H a*e of carbonc )he Ha*e of ic@e" d )he Ha*e of Chromium

    Q.>8 %fter PI the de5 ma*neti4ation is carried out toa y re0ersin* the direction of the currentb % compass is p"aced in 5 ! direction near the part & def"ection isindicatedc )he distance between the part & the compass shou"d be such that it issituated in a /c and if the def"ection is more than one de*, dema*neti4ation is

    considered to be comp"ete. d %"" are correct $Q.>> )he =- )he defects in the composites are chec@ed bya )he coin tap test b U!) c "aser ho"o*raphy d %""$

    Q.6? For the U!), #) method, the freBuency ran*e of the penetratin* ray isa 3?? N to 1? 4$( 13% b '?? N4 to 3??N4

    c 3?? N4 to 1??? N4 d one is correctQ.61 )he ran*e of the temperature for the soft bra4in* is ( 13%

    a '??C to ??C b ??C to 8??Cc 8??C to 63?C$ d 6??C to 1???C

    Q.6' )he term EIC%!J stand fora En*ine Indicatin* and Crew %"ertin* !ystem$

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    9/27

    Page&

    Preparation for paper II (Otc12)

    b En*ine Indicatin* and %nnunciatin* !ystemc E"ectronic Instrument and Crew %nnunciatin*d E"ectronic Instrument and Centra"i4ed %udio !ystem

    Q.6 )he bo"t which is a"ways used on"y for shear "oads and ne0er for tensi"ea )he Eye bo"t b )he Ko5 bo"t c )he c"e0is bo"t$ d one ( -%51'

    Q.6 Indentify the fi*ure (Fi*.1'58 of -%.(pa*e 3

    a )he hin*e hand"e b )he e )he 3?38 ri0et used for ri0etin*, a""oy structure of which materia" (-%5 131a !tee" b a*nesium $ c Copper d %"uminum

    Q.66 )he so"ution heat treatment of ma*nesium a""oys is carried out to increasea )he tensi"e stren*th b )he ducti"ityc )he shoc@ resistance d a" are correct ( -%5 '18

    Q.6- )he mo0ab"e parts of the icro meterJ are ( -%5 33a )himb"e b arre" c !pind"e d oth (a & (c$

    Q.-? Identify the part in the twist dri""

    a )he point b )he mar*in c )he F"ute$

    Q.-1 For the identification of f"uid "inesJ used in a/c, the e""ow and b"ue "inesa Indicate ; hydrau"ic$ ( -%51?' b Indicate ; 7ubricationc Indicate ; %ir condition d Indicate #e5 icin*

    Q.-' =f a"" the #ri"" si4es, the "ar*est no. are $$$ ( !)a 1? b '? c ? d ?$

    Q.- )he a*netic test of distin*uishin* between %nnea"in* %ustenite, indicatin*the non5ma*netic and rapid action & *reenish b"ue indication with nitric acida )he materia" is one"J b )he materia" is pureic@e"c )he materia" is Oic@e" stee" $ d one is correct (-%5 --

    Q.- )he resu"ts of the +adio*raphy #)J depend upon (13 %a )he structure of the ateria" b )he thic@ness of materia"

    c )he shape and si4e of the component d %"" are correct $Q.-3 For the we"din* of the a"uminum sheet of 'mm thic@ness, which we"din*

    procedure is best suiteda )he =

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    10/27

    Page1'

    Preparation for paper II (Otc12)

    Q.-8 9hen two ri0ets :oin two p"ates & force is app"ies to separate both the sheetsfrom each other, which type of stress is de0e"oped (13%5 a endin* b )ensi"e c !hear d one is correct

    Q.-> In a fi*ure both "oads ta@e a

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    11/27

    Page11

    Preparation for paper II (Otc12)

    a ehind hin*e point b Forward of hin*e pointc )op of the hin*e point d ottom of hin*e point

    Q. )he %erodyne, connected with the surface reaction of rotor but mechanica""ynot attached isa )he he"icopter b )he #yne c )he2"ider$

    Q.3 )he shape of the aerofoi" is contro""ed bya )he %i"eron b )he e"e0ator c )he rudder d %""$

    Q.8 %s per the internationa" standards atmosphere, the point at which the temp.ceases to drop further isa Ionosphere b )ropospherec )ropopause $ d !tratosphere

    Q.> Neepin* other parameters unchan*ed,a )he "ower is the aspect ratio, the "ower is induced dra*.b i*her the an*"e of attac@, hi*her is the induced dra*c )he hi*her is the aspect ratio, the "ower is induced dra*.$d )he "ower the an*"e of attac@, hi*her is the induced ratio.$

    Q.6 9hat is the standard 0a"ue of the pressure & temperature at mean sea "e0e"

    a -'.'- inches of mercury and 3- de* Fb '-.'- inches of mercury & 13 de* C$c 3.3 inches of mercury & 13 #e* Cd 1.8- P!I and ? de* C

    Q. - )C!a Ket en*ine prope""ed aircrafts reBuire shorter runway than the :et propen*inesb PE en*ine aircrafts can f"y at hi*her speed than the )E aircraftsc KE aircrafts are more economica" at hi*her a"titudes than PE aircrafts, butha0e more wei*ht than PE aircraftsd )urbofan aircrafts ta@e shorter runway as compared to turbo prop a/c$

    a. 13C b. 3-F c. -57Fd. >?FQ.1? 9hich of the fo""owin* dra*s ,is caused by the "ift force

    a Parasite b Profi"e c Induced$ d oth (b & (cQ.11 In the strai*ht & "e0e" f"i*ht

    a )he "ift is eBua" to wei*ht & the thrust is eBua" to dra*, but the "ess wei*htproduces "iftb #ra* is eBua" to the thrust produced by the en*ines, when the a/c is incruised condition & the "ift eBua"s to the wei*htc )hrust is eBua" to the tota" dra* and "ift eBua"s to the tota" wei*ht of a/c instrai*ht f"i*ht$d )hrust is eBua" to wei*ht & "ift is eBua" to dra*

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    12/27

    Page12

    Preparation for paper II (Otc12)

    Ee%tri%" "n! Ee%troni%s

    Q.1 In the pure inductin* circuit ( -%5 3'a )he current "a*s by -? de*. with respect to 0o"ta*eb )here shou"d not be any power "ossc )he 0a"ue of inductance increases with freBuency. d %"" are correct$

    Q.' 9hen the capacitor is purchase from mar@et, which specifications shou"d beta@en in to consideration is to be seen ( -%531a )he amount of current to which it can be sub:ectedb )he amount of 0o"ta*e to which it can be sub:ected$c oth aspects need to be *i0en eBua" consideration

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    13/27

    Page1

    Preparation for paper II (Otc12)

    Q. In an capacitor, the in between the p"ates the air is die"ectric and now if weincrease the thic@ness of the de5 e"ectric sheet, then capacitance wi""a #ecrease$(-%5 31 b Increase c 9i"" not chan*e

    Q. )he minimum component in a dipper circuit inc"udea )he #iode b )he resistance c )he battery c"ips & 0o"ta*e d %""$

    Q.3 )he e"ectrostatic char*er is used for (-%5'>1a 7ow 0o"ta*e b i*h 0o"ta*e$ c edium 0o"ta*e

    Q.8 %!FE) is

    a eta";=

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    14/27

    Page1!

    Preparation for paper II (Otc12)

    Q.13 )he semi5 conductor diodes are used in ( -% ; >8 a C"ipper circuit b C"ampin* circuit

    c +ectifier circuits $ d %"" are correctQ.18 )he permanent ma*net coi" type instruments ha0e

    a i*h power consumption b 7ow torBue/ wei*ht ratio$c ot much affected by stray ma*netic fie"ds d 7ar*e hysteresis "oss

    Q.1> )he dampin* factor acts on the mo0in* system of an indicatin* instrumenta o0in* $ b !tationaryc earin* fu"" def"ection d Kust startin* to mo0e

    Q.16 9hich of the fo""owin* is not connected with the dischar*in* of the "ead acidbatterya !pecific *ra0ity of '!=is not increasedb oth anode & cathode become Pb!=c )he 0o"ta*e of the ce""s decreases d %"" are correct $

    Q.1- %t a hi*h temperature in the "ead acid batterya )he resistance of the acid is increased$$b )he capacity of battery is increased

    c )he chemica" reaction in the ce"" is "essd o diffusion of e"ectro"yte

    Q.'? )he 0a"ue of e m f in the circuit, when the conductor is in ma*netic fie"d,depends on the (-%a )he number of wires mo0in* throu*h the circuitb )he stren*th of the ma*netic fie"dc )he speed of rotation d %"" are correct $

    Q.'1 9hich of the fo""owin* resistors has the sma""est physica" si4ea 9ire wound b carbon compositec !urface mounted $ d Potentiometer

    Q.'' % sine wa0e 0o"ta*e 0aries from 4ero to 1?? , what wi"" be the 0o"ta*e at ?

    #e* instanta 3? $ b 13? c '?? d '3? (sine ?Q.' % ha"f wa0e rectifier has an input 0o"ta*e of '? r m s of the step down

    transformer of the ratio 6 R 1 , what is the output 0o"ta*e , i*norin* diodedrop(-% ; simp"e transformer theory S '?/6 S ? , 0o"ta*e drop not ta@ena '>.3 b 68.3 c ?$ d '.3

    Q.' 9hen resistances are connected in para""e", which statement is not true (-%a #ifferent resistances ha0e their indi0idua" 0o"ta*e dropb %s in (a, but their effect is cumu"ati0e $c )he conductance is additi0e d Powers are additi0e

    Q.'3 9hi"e se"ectin* a capacitor for a particu"ar circuit, which property is moreimportant (-%

    a )he si4e of the capacitor b )he type of capacitorc )he amount of 0o"ta*e to which it is sub:ected $ d Current ratin*

    Q.'8 % series of net wor@, which is used to feed other net wor@s, with a number of0o"ta*es deri0ed from a sin*"e output 0o"ta*e is ca""ed (-%a )he potentia" di0ider circuitb )he current di0ider circuitc Impedance di0ider circuit d %"" are correct $

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    15/27

    Page1"

    Preparation for paper II (Otc12)

    Q.'> %n a"ternatin* current is f"owin* throu*h a coi", the force induced in it tochan*e the f"ow of current is ca""ed (-%a +esistance $ b Inductancec Capacitance d o"ta*e

    Q.'6 )he #C sources in the aircrafts are from (-%a atteries on"y $ b atteries & in0ertorsc atteries & )+Us d #C *enerators & )+Us

    Q.'- )he a"ternators are (-%a %"ternatin* current *enerators$ b #C *eneratorsc Uni0ersa" otorsd )hree phase %C Induction otors

    Q.? )he compensatin* windin* in the *enerator are connected ina In series with shunt windin*b In series with armature windin*c %s in (b so that these oppose armature windin* $d %s in (b that these assist armature windin*s

    Q.1 #urin* the constructions of the induction motor, the speed reBuirement is

    more (o. of po"es S 1'?$f/rpm i.e. if rpm is more o. of po"es wi"" be "essa o. of po"es shou"d be moreb o. of po"es shou"d be "ess$c FreBuency of supp"y shou"d be "owerd !tator windin* more stron*er

    Q.' % fi0e "ayer semiconductor de0ice, whose forward & bac@ward chartcharacteristics is of !C+a !C+ b ariac c )raic$ d =!FE)

    Q. )he 0o"ta*e *ain of a sin*"e sta*e Common Emittin* amp"ifier is increasedwhena %C "oad is decreased

    b +esistance of si*na" source is increasedc Emitter resistance +E is increased $d %C "oad resistance is increased

    E,p"n"tion5 This internal Emitter leg resistance will be in series with the external Emitterresistor, RE,then the equation for the transistors actual gain will be modified to include thisinternal resistance and is given as:

    At low frequency signals the total resistance in the Emitter leg is equal to RE+ Re. At highfrequency, the byass caacitor shorts out the Emitter resistor leaving only the internalresistance Rein the Emitter leg resulting in a high gain.

    Q. 2enera""y the rotor s"ots in the induction motors are not para""e" to the s@ew,to achie0ea Easy startin*b 7ess ma*netic hummin* sound$(-%c i*h startin* torBue d etter stabi"ity

    Q.3 E"ectro"yte in "ead acid battery is 5 '!=G '=

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    16/27

    Page1#

    Preparation for paper II (Otc12)

    Q.8 =ne is 5 ' )he potentia" difference is 5 easured between hi*h & "ow char*eQ.6 ar@in* on capacitor of '' indicates 5 '' TFQ.- 9hich type of resistors is sma"" in si4e 5 CarbonQ.? 9hen the transformer is tested on no "oad 5 It is for chec@ of Iron "ossesQ.1 9hen both :unctions are re0erse biased 5 It is @nown as cut off pointQ.' % de0ice which *i0es different 0o"ta*e settin*s ; potentia" di0iderQ. In the star windin*, the Phase current 5 is eBua" to the "ine currentQ. Input of +F and %F freBuency, %F uses which type of fi"ter ; 7ow pass$$Q.3 )he therma" run way in the transistor occurs

    a !hou"d be a0oided b !hou"d be rep"aced$c Proper precautions to be ta@en

    Explanation- This happens when the transistor is overheated, there is leakage of

    current.This heat buildup rapidly accelerates, and it invariably and quickly (in amatter of seconds or quicker) burns out the transistor as it reaches temperatures it

    was not meant to safely handle.

    Q.8 In K) de0ices, "ea@a*e current f"ow in b/w co""ector & base 5 9hen E r circuit is open and it depends on the temperature $$Q.> In the circuit shown in the fi*ure, ca"cu"ate the 0a"ue of 0a"ue of un@nown

    resistor + when the current in branch =C is 4ero.$$

    Q.6 !C+ consists of

    a )he three termina"sb %s in (a & It sha"" be operati0e on"y if a forward biased condition e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    17/27

    Page1$

    Preparation for paper II (Otc12)

    E,p"n"tion R )he *i0en s@etch is the se"f e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    18/27

    Page1%

    Preparation for paper II (Otc12)

    P"per - II ( re%eie! from A/0"n! )

    Q.1- %s per the Internationa" !tandard atmosphere, the point at which thetemperature ceases to decreasea Ionosphere b )ropospherec )ropopause $ d !tratosphere

    Q.'? Neepin* other parameters unchan*eda )he "ower the aspect ratio, "ower is the induced dra*

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    19/27

    Page1&

    Preparation for paper II (Otc12)

    b )he hi*her is the an*"e of attac@, hi*her is the induced dra*c )he hi*her the aspect ratio, "ower is the induced dra*$d )he "ower is the an*"e of attac@, hi*her is the induced dra*

    Q.'1 )he NirchhoffJs current "aw is app"icab"e on"y to (-% ; '6-a C"osed "oops in the net wor@ b E"ectronic circuitc Kunctions in a net wor@$ d E"ectrica" circuits

    Q.'' )he r m s 0a"ue of ha"f wa0e circuit current is 1? %mps. its 0a"ue for the fu""wa0e rectifier wi"" bea 1.1 %mps b '? %mps c '?/ %mps d?/

    Q.' )he direction of the rotation of a sin*"e phase motor can be re0ersed bya y usin* a re0ersin* switch b +e0ersin* supp"yconnectionsc +e0ersin* connections of both windin*sd +e0ersin* connections of startin* windin*s$( -%533

    Q.' )he main purpose of insertin* a core in the transformer is ( -% ; 36 a #ecrease re"uctance of common ma*netic circuit$ b Pre0ent eddy

    current "ossc #ecrease iron "osses d E"iminate ma*netic

    hysteresisQ.'3 4ero numbers of a b"ue print is used for ( -% ; 6

    a 7ocate parts, sections & 0iews of a "ar*e drawin* $ b Indicatedifferent sections of a/c

    c 7ocate parts in an aircraftQ.'8 9hat tas@s are comp"eted before wei*hin* an aircraft for determinin* theEmpty wei*ht

    a +emo0e a"" the items, e3HQ.1 9hich statement is true re*ardin* the ortho*raphic pro:ections ( -% ; -

    a )here are a"ways at "east two 0iews b it cou"d ha0ema

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    20/27

    Page2'

    Preparation for paper II (Otc12)

    c =ne 0iew, two 0iew & three 0iew drawin*s are most common $Q.' )he s"ip in the induction motor depends on ( -% ; 3

    a )he synchronous speed of the re0o"0in* f"u< b )he actua"speed of the motorc )he re"ati0e speed of the synchronous speed of the re0o"0in* f"u< and thespeed of motor$d )he freBuency of power supp"y.

    Q. )he use of f"u< in the so"derin* process is ( 13%a )o reduce the effect of o

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    21/27

    Page21

    Preparation for paper II (Otc12)

    Q.1 )C! re*ardin* e a '1 b 31$ c 3 d 3'

    Q. )he permanent ma*net coi" type instruments ha0ea i*h power consumption b 7ow torBue/ wei*htratio

    c ot much affected by stray ma*netic fie"ds d 7ar*e hysteresis"oss

    Q.3 )he dampin* factor acts on the mo0in* system of an indicatin* instrumenta o0in* $ b !tationaryc earin* fu"" def"ection d Kust startin* to mo0e

    Q.8 9hich of the fo""owin* is not connected with the dischar*in* of the "ead acidbatterya !pecific *ra0ity of '!=is not increasedb oth anode & cathode become Pb!=c )he 0o"ta*e of the ce""s decreases d %"" are correct

    Q.> %t a hi*h temperature in the "ead acid battery

    a )he resistance of the acid is increased b )he capacity ofbattery is increasedc )he chemica" reaction in the ce"" is "ess d o diffusion ofe"ectro"yte

    Q.6 If in 6?63 microprocessor addressin*, if the address of the operand e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    22/27

    Page22

    Preparation for paper II (Otc12)

    c !urface mounted $ ( strain *au*e dPotentiometer

    Q.3' % sine wa0e 0o"ta*e 0aries from 4ero to 1?? , what wi"" be the 0o"ta*e at ?#e* instanta 3? $ b 13? c '?? d '3?( sin?

    Q.3 For remo0in* the dama*ed ri0ets , which type of punch is used (-%a #ri0e punch or taper punch$ b Pric@ punchc o""ow punch d oth (a & (b

    Q.3 )he output of a #EU7)IP7UAE+ isa Identica" to the input of a UA , in data transfer system.b =pposite to the input of a UA, in data transfer system.c %s in (b and the centra" contro" unit is used in transmission & receptionof data.$(sinha

    Q.33 )he 0a"ue of e m f in the circuit, when the conductor is in ma*netic fie"d,depends on thea )he number of wires mo0in* thorou*h the circuitb )he stren*th of the

    ma*netic fie"dc )he speed of rotation d%"" are correct$(-%

    Q.38 )o ma@e ferrous to 0ast"y superior (-%a Carbon is added with iron by 1.'3 to 1.3 Hb Carbon is added appro

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    23/27

    Page2

    Preparation for paper II (Otc12)

    Q.81 )he binary eBui0a"ent to octa" 3> is (7)a ?11 1?1 111 ??1$ b ?1? 111 1?1 ?1?c 1?1 ?11 111 ??1 d one is correct

    Q.8' % ha"f wa0e rectifier has an input 0o"ta*e of '? r m s of the step downtransformer of the ratio 6 R 1 , what is the output 0o"ta*e , i*norin* diodedrop(-%a '>.3 b 68.3 c ?$ d '.3

    Q.8 )he output of two input bubb"ed %# *ates eBua"s to the output ofa =+ b %#$ c =+ d =) (7)

    Q.8 )C! re*ardin* the basic computer desi*na )he computer stores the pro*ram & binary coded data in memoryb CPU containin* the set of re*isters & CPU decodes & e' For securin* the "ar*e aircrafts, the suitab"e tie down is

    a +opes b cab"es c Chains d %"" are correct $( -%Q.> 9hich of the fo""owin* is considered as re*u"ar chec@ for fire e

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    24/27

    Page2!

    Preparation for paper II (Otc12)

    Q.> %n a"ternatin* current is f"owin* throu*h a coi" , the force induced in it tochan*e the f"ow of current is ca""ed (-%a +esistance $ b Inductancec Capacitance d o"ta*e

    Q.>3 e""ow "ine of fue" in the aircrafts indicates for f"uid "ine (-%a 7ubrication $ b ydrau"icc Fue" system d oth (a & (b

    Q.>8 9hich of the fo""owin* dra* is caused by the "ift forcea parasite b Profi"e c Induced$ d oth (b & (c

    Q.>> In the strai*ht & "e0e" f"i*hta )he "ift is eBua" to wei*ht & the thrust is eBua" to dra* , but the "esswei*ht produces "iftb #ra* is eBua" to the thrust produced by the en*ines , when the a/c is incruised condition & the "ift eBua"s to the wei*htc )hrust is eBua" to the tota" dra* and "ift eBua"s to the tota" wei*ht of a/c instrai*ht f"i*ht$d )hrust is eBua" to wei*ht & "ift is eBua" to dra*

    Q.>6 )he type of the torBue wrench , which has pro0isions of presettin* the 0a"ueis (-%a )he def"ection beam type b #ia" ; indicatin* typec icrometer settin* type $ d oth (a & (b

    Q.>- )he #C sources in the aircrafts are from (-%aatteries on"y $ b atteries & in0ertorsc atteries & )+Us d #C *enerators & )+Us

    Q.6? )he a"ternators are (-%a %"ternatin* current *enerators$ b #C *eneratorsc Uni0ersa" otors d )hree phase %CInduction otors

    Q.61 Con0ert 1'> into binarya 11111 b 1111 c 111111 d 1111111$Q.6' )he compensatin* windin* in the *enerator are connected in

    a In series with shunt windin* b In series witharmature windin*c %s in (b so that these oppose armature windin*d%s in (b that these assist armature windin*s

    Q.6 #urin* the constructions of the induction motor , the speed reBuirement ismorea o. of po"es shou"d be more b o. of po"es shou"d be"essc FreBuency of supp"y shou"d be "ower d !tator windin*

    more stron*erQ.6 9hat type of heat treatment is used for a"uminum a""oys

    a !o"ution heat treatment b Precipitation heattreatmentc %nnea"in* d %"" are correct $ (-%

    Q.63 )he type of corrosion , which occurs on the *rain boundaries of an a""oy(13%a Inter5*ranu"ar$ b Frettin*c #issimi"ar meta" corrosion d %"" are correct

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    25/27

    Page2"

    Preparation for paper II (Otc12)

    Q.68 )he type of bo"t , where on"y shear "oad occurs & no tensi"e "oad (-%a Eye b C"e0is $ c Ko d 7oc@ bo"t

    Q.6> )he meta" tubin* is si4ed by (-%a Inside diameter measured by 1/6 inch b =utside #ia. measuredby 1/' inchc Inside diameter measured by 1/ 18 inch d =utside #ia. measuredby 1/18 inch

    Q.6> In the U!) , the Pu"se EchoL system is used for (-%a !urface crac@s b Interna" crac@s c 9e"d f"aw d %"" are correct $

    Q.66 )he drawin* , which is used in the i""ustrated part manua"a E

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    26/27

    Page2#

    Preparation for paper II (Otc12)

    d %C "oad resistance is increased

    Q.-6

    Compiled by C.K.Sharma

  • 7/23/2019 Q for Paper-II Topic Wise From DGCA-1

    27/27

    Page2$

    Preparation for paper II (Otc12)