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MODULE 11A- MOCK TEST 40 MARKS
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The disadvantage of narrow channel spacing is
1 point
(a) the need for increased receiver sensitivity
(b) the possibility of adjacent channel interference
(c) large amounts of wasted space between channels.
Clear selection
TACAN beacons transmit in the range
1 point
(a) 962 to 1213 MHz
(b) 1030 to 1090 MHz
(c) 978 to 1213 Mhz
Clear selection
A loop antenna is used for
1 point
(a) VOR and ADF,
(b) ADF and Omega
(c) Omega and VOR
Clear selection
The Pressure sensing element used in Altimeter Instrument is:
1 point
a) Bourdon Tube
b) Evacuated Metal Capsule
c) U- Shaped Bracket
Clear selection
Input Supply for Strobe Light is
1 point
a) AC
b) DC
c) AC or DC
Clear selection
Above 30 Mhz which waves are utilized
1 point
a) Radio Waves
b) Sky Waves
c) Space Waves
Clear selection
Satellite Communication uses LEO satellites to
1 point
a) Provide greater Coverage
b) Maintain a geostationary position
c) Minimize Voice Delay
Clear selection
Nav Light Supply
1 point
a) 28V DC
b) 28V AC
c) 115V AC
d) Both a) and b)
Clear selection
The starboard wing tip navigation light has the following color and divergence
1 point
(a) red and 110 degrees
(b) green and 110 degrees
(c) white and +_ 70 degrees
Clear selection
Master caution and warning lights are located on the
1 point
(a) lower instrument panel
(b) upper instrument panel
(c) overhead panel.
Clear selection
The frequency range of a VOR receiver is
1 point
(a) 108 to 117.95 MHz
(b) 108 to 1 1 1.95 MHz
(c) I l8 to 135.95 MHz.
Clear selection
Above 30 MHz propagation is by:
1 point
(a) space wave
(b) sky wave
(c) ground wave.
Clear selection
The DFDR requires an electronic process such that
1 point
(a) Digitally coded data can be converted back(decoded) into its analogue form
(b) Digitally coded data can be converted back(encoded) into its analogue form
(c) Analogue data can be converted back(decoded) into its digital form.
Clear selection
Fibre optics communication network uses
1 point
a) T Junction
b) Y Junction
c) Ring Topology
d) Both B & C
Clear selection
Do not Touch with Bare hands, will lead to premature failure of which type of light
1 point
a) Xenon
b) Fluorescent
c) Incandescence
Clear selection
Landing Lights are
1 point
a) Sealed beam devices
b) 600-1000W filament Lamps
c) Parabolic Reflector concentrates Light in a Directional Beam & Located on the wing tips or on the front of the fuselage
d) ATA
Clear selection
SATCOM uses
1 point
a) Geostationary Satellites
b) VHF
c) HF
Clear selection
What colour and shape of symbol is used for proximity traffic
1 point
(a) Solid red square
(b) Solid cyan diamond
(c) Solid orange circle
Clear selection
TCAS II requires which type of ATC transponder
1 point
(a) Mode S
(b) Mode A
(c) Mode C
Clear selection
Moving MAP shown on IFE
1 point
a) Does not interfere with a/c Nav
b) Separate sensor avlb
c) Takes from a/c Nav sys
Clear selection
Engine RPM, Fuel flow indication shown on
1 point
a) PFD
b) Primary EICAS
c) Secondary EICAS
Clear selection
MTCS for TCAS
1 point
a) TCAS is an airborne system based on secondary radar
b) White Diamond, Red Square, Amber Circle
c) both
Clear selection
MTCS for BITE
1 point
a) Self-test feature built into airborne equipment as an integral fault indicator
b) a signal flow type test.
c) assist the avionics engineer with troubleshooting
d) ATA
Clear selection
A method used in modern aircraft for reporting in-flight faults to an engineering and monitoring ground station is
1 point
(a) TCAS II
(b) ACARS
(c) GPS.
Clear selection
ACARS is a digital data link system transmitted in the
1 point
(a) VHF range (129-137 Mhz)
(b) LF range
(c) UHF range
Clear selection
Attenuation in an optical fibre is due to
1 point
(a) absorption, dispersion, and radiation
(b) absorption, scattering, and radiation
(c) absorption, cross-talk, and noise
Clear selection
Advantages of fibre optics :
1 point
a) Relative freedom from electromagnetic interference
b) Electrical isolation and freedom from earth/ground loops.
c) wide bandwidth and very high data rates can be supported &reduced noise and cross-talk compared with conventional copper cables
d) ATA
Clear selection
Which light cannot be tested by Ohmmeter?
1 point
a) Halogen
b) Xenon lamp
c) Incandescent
d) Fluorescent
Clear selection
MTCS for Current Limiter
1 point
a) Slow-Blow Fuse
b) Short delay before metal link melts & disconnect the circuit
c) Made of Copper with higher melting melting pt. than other fuses & Carry more than its rated Capacity & carry a heavy overlaod for a short time
d) ATA
Clear selection
MTCS regarding IMA
1 point
a) LRU is better than LRM
b) LRM is better than LRU
c) IMA uses LRU and used in rack
Clear selection
CDU provides a very powerful interface tool using:
1 point
a) Mode and Function Keys
b) Soft Keys
c) Alpha Numeric Keys
d) ATA
Clear selection
FMS outputs data to
1 point
a) EFIS Displays
b) Communication Management Units
c) Autopilot and Auto throttle
d) ATA
Clear selection
Cladding material in fibre optics has
1 point
a) Lower refractive index than the core
b) Higher refractive index than the core
c) Same refractive index than the core
Clear selection
The function of the squelch stage in an aircraft VHF radio is
1 point
(a) to eliminate noise when no signal is received
(b) to increase the sensitivity of the receiver for weak signals
(c) to remove unwanted adjacent channel interference.
Clear selection
In the HF band radio waves tend to propagate over long distances as
1 point
(a) ground waves
(b) space waves
(c) ionospheric waves
Clear selection
Audio-video on demand (AVOD) entertainment enables passengers to
1 point
(a) pause, rewind, fast-forward or stop a programme
(b) make phone calls via satellite communication
(c) ignore PA system voice announcements and chime signals.
Clear selection
The passenger address (PA) system is primarily a safety system that provides passengers with
1 point
(a) In-flight entertainment
(b) Reduced amount of IFE wiring to a seat position
(c) Voice announcements and chime signals.
Clear selection
MTCS Compass fluid used
1 point
a) Silicon Fluid to make the compass Aperiodic
b) It also provides Buoyancy, diminishing the effect of friction and wear.
c) Changes in Volume due temp. are compensated by bellows type expansion device, secured to the rear of the bowl.
d) ATA
Clear selection
SCR are also known as
1 point
a) Thermistor
b) Thyristor
c) Transistor
Clear selection
HF frequency is
1 point
a) 3-30 Mhz
b) 30-300 Mhz
c) 300-3000 Mhz
Clear selection
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