FEB-2012 PAPER 2
1. fires
in flammable petroleum products or other flammable or combustible liquids, greases,
solvents, paints, etc is classified as
a. class A fire
b. class
B fire
c.class C fire
2.
Heat treatment of aluminum consists of
A .Solution
heat treatment
b .Precipitation
Heat Treatment
c
.Annealing
d .All of the above
3.If
distance of cg from datum is 160” and of leading edge of MAC
is 140” and length
of MAC is 100”. Find MAC %
a.20%
b.50%
c.75%
4.If
the input of half wave rectifier is 240 V and transformer has a step
down ratio of
8:1, what is the output rms value?
a42.2 V
b30V
5.Demultiplexer is
a.Output is same as multiplexer
b.Output
is opposite of multiplexer
c.As in b CCU
regulates in input and output
6.Which of them is a 5 layer device
a.Diac
b.Triac
7. Convert octal code 3574
to binary
a.011 101 111 100
b.100 111 101011
c.111 101 011 111
8. A metal which can be hammered, rolled, or pressed into various
shapes without cracking, breaking, or leaving some other detrimental
effect, is said to be
a. Malleable
b.Ductility
9.MTCS regarding
“Austenite” is
a.The name
given to steel when it is heated above the
critical range, consists of a solid solution of cementite in gamma
iron.
10.Data transfer in a/C
is by
a.Series bus
b.Parallel bus
c.Data bus
d.ARINC 429 bus
11.Speed
of induction motor is increased when
a.Number
of poles is increased
b.Number of poles is reduced
c.
d.All of the above
12.MTCS
a.turboprop
engine requires lengthy runway than piston engine of same power
b.turbojet
has more weight than piston engine of same power
c.turbofan required short runway as
compare to turbojet
d.all of the above
13.Yellow
color stands for
a.Hydraulic
b.Lubrication
c.Coolant
14.Illustrated
parts catalog shows which drawing
a.Orthographic
b.Exploded view diagram
c.
15.Pulse echo
method can detect which defects
a.Welds flaw
b.Surface crack
c.Subsurface defect
d. All of the above
16.Corrosion
along grain boundaries is called
a.Intergranular corrosion
b.Crevice corrosion
c.Galvanic corrosion
17.Aluminum is
more susceptible to corrosion when substantial percentage
of __________ is present
a.Magnesium
b.Copper
c.Manganese
d.Chromium
8. We can get vastly superior product than iron If carbon is
added to iron, inpercentages ranging up to
a.Approximately
0.5 percent.
b.Approximately 1 percent.
c. If Nickel 3.50%, chromium 1.55% is present
19.Which resistor has the smallest possible size
a.Wire wound resistor
b.Carbon composition resistor
c.Surface mount resister
20.While
selecting a capacitor check for
a.Voltage
b.Size
c.type
d.How much voltage it can withstand
21.Metal
tubings are sized by
a.Inside diameter in increment
of 1/16 inch
b.Inside diameter in increment
of 1/32 inch
c.Outside diameter in increment of 1/16 inch
d.Outside
diameter in increment of 1/32 inch
22.Stringers, bulkhead, skin, rivet and extruded section
are made from
a.Cast aluminum alloy
b.Wrought aluminum alloy
c.Pure aluminum
23.Two input
bubbled AND gate is
a.OR gate
b.AND gate
c.NAND gate
d.NOR gate
24.Slots provided on
the armature are not parallel but are staggered at an angle toprovide
a.Safety
b.Reduce the humming noise
c.Stability.d.…..
25.In 18-8 steel
18% is composed of
a.Nickel
b.chromium
c.……..
d.……..
26.Parco-
lubrizing is a chemical treatment applicable to
a.Aluminum and magnesium parts
b.Iron and steel parts
c.………..
27.Damaged
rivets can be removed by
a.Drive punch
b.Prick punch
c.Hollow punch
d.Both a and b
28.Value
of induced emf depends upon
a.Number of wires
moving through magnetic field
b.Strength of
magnetic field
c.Speed of rotation
d.All of the above
29.
If
the peak value is 100 volts then at an angle of 30˚ what is the instantaneousvalue
a.50 V
b.100 V
c.150 V
d.200 V
30 Wrenches are made of
a) Carbon steel b) Tungsten
c) Chrome vanadium steel
31 The type of torque wrench
which has the ability to preset the torque
a)
Deflecting beam b) rigid frame
c) micrometer setting type
32 Fire extinguisher periodic checklist include
a) remove all external dirt and dust
b) check
for proper weight
c) no nozzle obstruction
d) all
of the above
33 The drag which is contributed by the lift
a)induced drag
b)parasite drag
c)profile drag
34 In straight and level flight
a)lift
equals drag and drag is the resistance of the air to
objects moving throughit
b)thrust
equals weight and thrust is derived from jet propulsion or from
a propeller
and engine combination
c)lift equals weight
but thrust equals drag
d)all are correct
35 Variable delivery pump in hydraulic system36
devices which make it possible to obtain more than one voltage from asingle
power source
a)Current divider
b)Potential divider
c)Resistance dividerd)All are correct
37 The property of
a coil to oppose any change in the
current flowingthrough it called
a)Inductance
b)Capacitance
c)Resistance
d)All of the above
38 Maximum allowable weight without fuel
1.
Pay load
2. Zero fuel weight
39 medium threads is
a)
Class 1
b)
b) class 2
c) class
3
d)
40
Tied down of large a/c
a) Cable b) rope c) chain
d) any of the above
41 aluminum alloy head marking
a)2 raised dash
b ) single raised dash c) astric mark
42 which bolt is used only in tension
never in tension
a) Clevis
b)
eye bolt
43 A thread running length of the fabric
a) Warp
b)
weft
44 Cable MTCS
a) Frequent adjustment of the cable tension
b)
Low mechanical efficiency
c)
High strong and high weight
d)
all
45 what is an alternator
a) Ac
current generator
b)
dc generator
c)ac
motor
46 In large a/c dc supply comes from
a)
battery
only
b)b) battery &TRU
c)c) battery
and generator
47 CRT COLOUR1.Red, green, blue
2.Yellow, red ,green
48 EICAS1.Engine indicating and crew alerting system
49RMS value
in half wave is 10 amp, what will be the rms value if it is full wave rectified
1.
14.14 amp
2.
20/Ï€amp3. 40/Ï€amp
50 Zone numbers on aircraft blue prints are used
to
1. Locate parts, sections and views on large
drawing
2. Indicate different section of aircraft
3.
Locate parts in aircraft
51 Which type crack can be detected by MpI using either
circular orlongitudinal method?
1. 45degree
2. Longitudinal
3. Transever
52 What Al-alloy designation indicate that the metal has received nohardening
or tempering treatment
1. 3003-F
2.
5052-H36
3.
6061-0
53 What tasks are completed prior to weighing an a/c to determine itsempty
wt?
1.Remove all items except those on a/c equipment list, drain fuel andhydraulic fluid
2.Remove all items
on a/c equipment list, drain fuel, compute oil andhydraulic fluid lot
3.Remove all items
except those on a/c equipment list, drain fueland
fill hydraulic reservoir
54 Zero fuel wt. is
a) Dry wt. plus
the wt. of full crew, passengers and cargo basic operating wt.without crew, fuel
and cargo
b) Maximum permissible wt. of a
loaded a/c ( passengers, crew and cargo)
without fuel
55 The core material of alclad 2024 T4 is
a)
Heat treated Al. alloy internally
and the surface material is commercially pure Al
.b) Commercially pure Al.
and the surface material is head treated
Al. alloyStain hardened Al.
alloy and the surface is pure Al
56 Which number represents the vernier scale uraduation of a m/m
1.
.00001
2.
.001
3.
.0001
57 Which too is generally used to calibrate a m.m or check itsaccuracy
1. Gauge block
2.
DTI
3.
Machinist scale
58 Kirchof current law applicable only for
1.
Closed loop
2.Junction network
3.
Open ckt
59 Fretting corrosion is mostly likely to occur
1.
When two surfaces fit tightly together but can move relative to one another
2. When two distance metals are in contact3. When
two surfaces fit loosely together but can move relative to one another
60 Spilled mercury on aluminium
1.
Urgently increases susceptibility to hydrogen imbrutement
2.
May cause impaired corrosion resistance if left in proposed contact
3.
Causes rapid end severe corrosion that is very difficult to control
d)all
61 Direction of single
phase motor can be reversed by
1.
Using reversible switch
2.
Changing the connection of both winding
3.Changing
the connection of stating winding
62 Flux is used for
1.
Reduce oxidation
2.
Remove the oxides
3
4. All
63 O ring color code indicates
1.
Size
2.
Shape
3.
Vapour and fluid compatibility
Q64.Which cable has high resistance to
fatigue?
1.
Galvanized
2.
Stainless steel
3.
Carbon steel
65
Which brazing method is used for precious by localized parts
1.
Induction
2.
Torch brazing
3)Resistance
brazing
4.
Furnace brazing
66 When all others parameters are
remains unchanged
1. Less the aspect ratio, more
the induce drag
2. More the aspect ratio less the induce drag
3.
Higher the angle of attack, higher the induce drag
4.
Higher the angle of attack, less the induce drag
67 In orthographic projection
1.
Eight
veiws are common
2.
.
Two vines are common.
3. One view, two view and three views are common
68 the main purpose of
using core in transformers to
1.
Reduce reactance 2. Reduce copper loss
3. decrease the reluctance of common
magmetic circuit
4.
Reduce iron loss
69 Tempering is used for
1.Reduce
hardness and ductility.
2. Increases hardness
and ductility .
3.Reduces hardness and brittleness
70
Point in atmosphere at which temp remain
content
1. Stratosphere
2. Tropopause
3. Troposphere
4.
Ionosphere
71 Convert 127 octal to binary form
a)(1111111)2
72 8085 microprocessor
a)
Direct register73
8085 microprocessor
b)
74 materials
such as magnesium and eureka when temperature
increasesits resistence
a)
Its resistance increases linearly with temperature
b)
Its resistance decreases with temperature
c)
Increases
d) Fairly constant over considerable range
of temperature
75) In star connection
A IL= √3IP
b) VL=VP
c) IL=IP
D)….
76) General purpose solders
a)Tin, lead and antimony
b)
Tine ,lead and silver
77 During refueling a/c
a)
Place chokes
b) Keep the chock little forward
c)
Keep the chocke on main landing gear
d)
Never keep chocke and parking break should be on
78 standard atmospheric conditions
a)
b) 29.92 mm of inches of HG at 15degree cel
c)
52.8 mm of inches of HG at 15 degree cel
d)
14.7 psi at zero degree at O degree cel
79 Regarding resonance of series ac ckt
a)
Xl is less than XC
b)
Xc is greater than XL
c) Xl=XC
D)all
of the above
80) Semiconductor is used as
1
Rectifier
2
Clipper circuit
3
Clamper
4 All of the above
81) Aluminum alloy is used vastly in a/c due
to
a)
High strength to weight ratio
b)
Ease of fabrication
c)
Non magnetic and an excellent conductor
d) AOTA
82bolt with asterisk sign on its head
a)standard steel bolt
83ATA chapter -51
a)structure
85 arinc 429 sends data in
A)
BCD
b)
Binary
c) Any one of the language above
86 which is not associated with discharge of
LA battery
A) S.g increases
b)
Voltage decreases
c)
Both
87) What happen when LA battery temp
increases?
88) Mark the wrong statement regarding
parallel resistor ckt
A) Different resistor has their individual
voltage drop
B)
Different resistor has their individual current drop
c)
Power is additive
89 when current flown b/w two conductor in
same direction
a)
Field strength decreases and it attract each other
90when one wheel is jacked nose of a/c
a)
Should face into wind
b)
Opposite to wind
c)
Any direction
91) MCTS regarding computer memory
92) Slip speed
93) When the a/c towed in uneven surface
where should the tow bar be connected