DGCA PAPER 2 OCT.

2013
1. Trickle charging in lead acid battery
a. prevent sulphation
b. for fresh & fully charge
c. maintain electrolyte
2. High pass filter allow to pass
a. Carrier frequency
b. Audio frequency
b. Steady to dc level
d. ATA
3. Refueling of the a/c from stored can & barrel must be run with
(old 9A)
A. Plastic fuel strainer
b. chamoiss & non conductive
strainer
c.

Chamois & metal screen

d. any non

conductive strainer
4. Higher resistivity in which material

d. silver

a. lead
b. copper c. aluminum
5. power factor in R-C circuit
a. 0
b. between 0& 1
c. between 0 & -1
d. unity
6. Before fuelling using pressure fuelling
a. Truck pump pressure must be correct to the tank
b. Truck pump pr. Equal to tank booster pump.
c. -------------------------------------------------------------7. RF frequency range
a. One band HF 3-30 mhz
b. Two band HF & VHF
c. Three band HF , VHF & MF

d. Four band HF,MF,VHF,UHF

8. Voltage gain 200 and current gain is 50 calculate power gain
a. 4
b. 10000mA
c. 10000uA
d. 10000
9. (A+B) boolen algebra indicate

c. A.B

a. A+B b. A-B
10.
Oscillator circuit used in
a.
11.

d. A.B

+ve feedback

b. ve feedback c. zero feedback

NAND gate input connected together the circuit is

c. NOT

a. OR
B. AND
b.
12.
In digital circuit NAND GATE
a. OR
b. NOT
c. NAND

d. NAND

13.
During forming process
(15A pg.144)
a.

of al. alloy making repair

Hammers and mallet

used
b. Hit & try to max. achieve
c.
14.
Bend allowance is

c.

rotary

machine

(15A pg.146)

c.length
material required to bend

a. Thickness of material to bend

of

b. Radius of material to bend

15.
20000 /v
a. 5ma
b. 20mA c. 50 mA d.200 mA
16.
Smoke detector used in cargo & baggage compartment

b. photo electric cell

a. Chemical detector
c.fire detector
17.
Fittings used in a/c

ATA

a. Thimble
b. shackles
c. terminal
d.
18.
Which pin used in tierod terminal& secondary control

. flathead pin

a. Tapper pin
b
c. cotter pin
d.
both a&b
19.
Turnbuckles are fitted in cable assembly for purpose of

a. Making for minor adjustments

20.

Convert binary to decimal 10110101

c. 181

a. 254
b. 264
21.
An aircraft cable have
a. High mechanical efficiency

c. setup by without backlash

b. Important for precise control

22.
MTCS regarding cable wire

d. ATA

a. The dia of the wire determine the

total dia of the cable
b. Length of the cable

23.

c. material

In primary control cable is used

a. 719

24.

a/c control cable made of

a. carbon steel
25.

which fastener is used for securing cowlings

c. camloc

a. gust lock fastener

b. shakproof
d. both 1&3
26.
bulb diagram
a. r1 will glow b. r2 will glow

both

c.

r1&r2

will glow
27.

d. none
part no. AN470AD3-5 AD indicates

c.2117-T

a. 2017-T b.2024-T
28.
Universal head rivet combination of
a. Countersunk , brazier head c. countersunk ,flathead

b. Flathead, brazier head

29.

Rivet is identified by

a. Part number b. AN standard no.

d.

c.MS standard no.

ATA
30.
a.
31.

In rivet head marking indicate

Material

b. coating

c.

heat

treatment

d. ATA
Solid shank rivet identified by

size of shank

a. Shape b. color
c.
32.
NAS stand for
a. National aerospace standard
standard

c.

d. ATA

national

aviation

b. National aircraft standard

33.
A.

Which washer is used in high vibration condition

Shakeproof lock washer

lockwasher
B. Special washer
34.
Regarding helicoil MTCS
a. Made of 18-8 stainless steel wire c.
cross section

c.

have

diamond

d. ATA

b. Threads in unified coarse

35.
Which type of micrometer used with torque wrench
a. Flexible beam
c. rigid & frame

shape

b.
36.

Rachet type

d. ATA
Identified aircraft nut diagram

Boosts aircraft nut

a.
c. elastic stop nut
b. Elastic self locking nut
37.
The castle nut AN310 is used in drilled shank
a. AN hex head bolts c. eye bolt

d. ATA

b. Clevis
38.
Bolt identification diagram

c.
AN
standard
steel bolt(corrosion resistant)

a. AN standard steel bolt

b. Close tolerance bolt

39.
MTCS
a. When bolt is tightened nut is hold &bolt head is turn

b. Screw is turned by its head

c. Threaded screw is pointed
40.
Brinell hardness no. measure
a.
41.

Dia of impression

b.

resistance

to

penetration
Which treatment is reduce the hardness of harden steel

b. annealing

a. Normalizing
d. tempering
42.
H2 indicate

c.

case

hardening

strained
hardened & partially annealed

a. Strained hardened only

43.

b.

Lockbolt diagram identified

stump type

a. Pull type
b.
c.
blind
type
44.
Intergrannular corrosion which type NDT method used
a.

UST

45.

b. eddy current c. x-ray

Aircraft cooling system consist of

source of compressed air, heat

exchanger, turbine

a. A

b. Bleed air , turbine , heat exchanger

46.
Chord line

a. Leading edge to trailing edge

b. Wing tip to tip
c. Trailing edge to leading edge
47.
EFIS MTCS
a. Indicate all engine parameter
48.
Identifiy line diagram

c. datum

a. Visible b. stitch
49.
Aircraft jacking MTCS
a. At least 4 jacking points provided for jacking purpose

b. Jacking leg does not interfere to

any aircraft system
c. Before jacking parking brake should be ON
d. ATA
50.
1159000000 indicates

a. 115.9MHz
51.
Demagnetization by holding the parts done by
a. AC current
b. DC current
c. both AC & DC
52.
Slat is used for
a.

Reduce stalling speed

c.

drag

increase
b. Speed increase in takeof
53.
Micrometer vernier scale reading

a. .2792
54.

Micrometer reading

a.1.472
55.

b. 1.456

.1.45

d. none

Leveling of aircraft carried out by

a. A scale used with plumb bob

placed with level longitudinally &
laterally
56.
Regarding tie down MTCS
a. Tie down connect to lift strut

b. The 1 inches slackness provided

for movement
c. ---------------d. ATA
57.
Useful load

a. Max. gross weight empty weight

b.
58.
a.
59.

For engine starting which type fire extinguisher is used

Co2

b. dry powder

Which generator have poor voltage regulation

Series

a.
b. shunt c. compound
60.
Which type fire extinguisher is used on class c fire
a. Co2
c.dry powder

. both a & b

b. Halogenated hydrocarbon
d
61.
In case of short circuit of capacitor ohmmeter indicates

. reads zero & stay there

a. Infinity
b
62.
Semiconductor diode measure in ohmmeter what it will
indicate
a.Low resistance in both portion of lead c. high resistance in
portion of the lead
b. one side of portion high & opposite side low resistence
63.
Self inductance one hennery equal to
a.10v & one amp/second
c. 1v &10 amp/second
b. 1 milivolt & 1 amp/second

d. one volt & one

amp/second
64.

The iron core provide in transformer

a. Low reluctance for magnetic line

of force
b. Reduce Eddy current loss
65.
Inverter MTCS
a.

It convert dc to ac
consist of AC motor & AC generator

c.

rotary

inverter

b. Solid state static inverter used as a rectifier d. ATA

66.
NOT gate indicate

a. Inverse
67.

Battery connection MTCS

a. When removing battery negative

lead remove first
68.

Bypass ratio

A. Ratio between air flow core of the

engine & fan air
69.
Engg. Drawing Round solid section indicate
70.
Total piston displacement
a. Depend upon compression ratio
b. Piston displacement in cylinder

c. Both a&b
71.

Kirchof mesh law

a. IR = 0
b.
72.
ATA code 27
a. Air condition

b. auto pilot

d. Flight control

b. c. Fire protection
73.
R.M.S. value of half wave circuit current is 10 amps , what
will its value for full wave

14.14 amps

a.
c.20 amps
b. 14.14
74.
While storing the aircraft in the hanger
a. The fuel tank should be empty
b. The fuel tank should partially filled

c. The fuel tank should be filled

75.

Taxi signal

a. Left turn
76.
For the statement output is low when all inputs are
high gates are
a. Positive OR/ negative AND
b. Positive AND/ NEGATIVE OR

c. Positive NAND / negative NOR

77.
When lead is increased then a point is reached when a
faint luminious spark of bluish colour appears along the length
of counductor this efect is known as

a. Corona efect
78.
8 bit resister that store the memory o/p when read
operation is performed

a. MDR
79.

Computer which receive data & does not transfer data

a. MAR & IR
80.

Working principle of airspeed indicator

a. Diferential pressure between

and static and pitot probe
81.
Transistor is used over vaccum tube having drawbacks
a. Transistor have low power dissipation
b. Have low input impedance
c. Dependent upon temp.

d. ATA
82.
A metal which can be hammered , rolled or pressed into
various shapes without cracking ,breaking or leaving some
other detrimental efect

a. Malleability
83.
Which type of aluminum used in aircraft construction for
stringer , bulkheads , skin , rivets, extruded section

a. Wrought aluminum alloy

84.

A bolt is used on shear load

a. Clevis bolt
85.

A punch is used of drive out damaged rivets

a. Pin punch
86.
After servicing , electrical leakage in ni-cd battery should
be checked by
a. Miliohmmeter
c. miliammeter
b. Milivoltmeter
d. any of the above
87.
A D.C. generator consist of

a. Rotating armature, field

windings ,pole shoes
88.

Moving coil instrument measure

Both AC & DC

a. Only D.C.
C.
b. Only A.C.
89.
IN repairing the primary & secondary structure

a. Structural repair manual

90.
The welding method suitable for welding tools &
equipment is
a. TIG
b. Gas metal arc welding

c. Shielded arc welding

91.
After welding if found pitting adjacent the weld it
probably indicates
a. Rapid cooling

b. Excessive heat during welding

c. Both A & B
92.
During flight instances , when angle of attack increases ,
centre of pressure moves

a. Forward move
93.
Most of the aircraft use 400 hz AC system use because
a. Has high inductive reactance

b. As in a & this allows to use of

small motors & equipments
94.
After charging ni- cd battery if any of the cells are found
unbalanced the battery should be

a. Deep cycled
95.

1180 about aluminum alloy means

a. 99.8% pure aluminum alloy with

one control over heat treatment
96.
Regarding aircraft wire AN-20 and specification MIL- W5806
a. It is Copper wire
c. aluminum wire

b. As in 1 and has high conductance

air than in conduit
97.

Identify diagram

a. Automatic , push reset, push reset

&pull of, switch type

98.

When drilling soft metal the cutting angle

a. 90 degree
b.
99.
a.
b.
c.
100.

118 degree
When charging lead- acid battery that indicate
Cathode plate color chocolate brown
Voltage increase
Sulphuric acid specific gravity decrease
When hydraulic lock detected

a. Remove either front or rear spark

plug and rotate through.