M5 2

1.

1 point

number of segments for LED display 1000

9

7

8

2.

1 point

When turning off IRS, it lasts for 30sec

storing last position

3.

1 point

ESDC can be in terms of

direct discharge, indirect discharge and thermal discharge

4.

1 point

Octal numbering system is number with base or radix

16

2

8

5.

1 point

8 bit capacity 6k bits storage

6000

6*2 to the power 10

60

6.

1 point

To ensure continued HIRF protection

inspect areas which suffer from corrosion, flexing etc

ensure all unshielded wires run in metal conduits

manufacture new aircraft with specially protected avionics compartment

7.

1 point

for HIRF (or EMI preventing) protection, which is not proper (acceptable) method

grounding and bonding

connect (add) a resistor on the (ground end) terminal

cable shielding

8.

1 point

ESDS damage by

direct discharge current, electric field (indirect emanating) emitting from charged object and thermal energy of the discharge

electric field emitting from charged object but no direct discharge current

direct discharge current but no electric field emitting from charged object (produces current)

9.

1 point

the computer hardward of device refers to (is defined as)

electronic parts only

computer memory data only

computer program and electronic parts

10.

1 point

if failures are detected during power-up self-check test of a computer system

self-check stops at point of failure detection

failure is recorded in maintenance memory and computer turns off

the power up self check may restart itself or restart the system

11.

1 point

polarizing film must be used at

LCD

CRT

LED

12.

1 point

FMC (FMU) self-test will be carried out when

initial power up or power interrupt

13.

1 point

the output of OR gate with inputs A and B is 0, inputs A and B

1 & 1

1 & 0

0 & 0

14.

1 point

FBW redundancy is ensured by

different (computers) microprocessors, different suppliers and different (tracking signal lanes) electron

15.

1 point

The output of digital computer in analogue control system should be processed by

D/A converter and then sent to analog conroller

D/A converter and then sent to analog sensor

A/D converter and then sent to analog controller

16.

1 point

which is temp mem for CPU

CU

ALU

register

17.

1 point

sequence of (general) software (development) designation is

A software requirement, coding, testing, integrating with hardware and system validation test

develop softward requirement, design software, code software, integrate modules, integrate hardward/softwareand system validation

18.

1 point

Convert 113(16) binary

100100111

100010010

100010011

19.

1 point

Fly by wire computer system has mechanical backup function

operates when electrical power failure

20.

1 point

cyclic test (what dog, parity, checksum) should be performed for ECAM during

power up

in flight

from MCDU

21.

1 point

how many bytes can be carried in 32bits word

8bytes

2bytes

4bytes

22.

1 point

FMC system controls NAV etc and gives

EICAS cautions and warnings

dedicated cautions and warnings

take off and landing warnings

23.

1 point

when GPSSU fails self test

it enters in (change to) fault mode sensor unit

24.

1 point

Flight management computer ( FMC)

auto tunes VOR freq, DME and ILS for position (update)

25.

1 point

Base or Radix of decimal numbering system

2

8

10

26.

1 point

ARINC429 check data transmission error by

even parity

odd parity

check sum

27.

1 point

Base or radix of decimal numbering system

8

16

2

28.

1 point

do not pull CB during IRU shutdown

to prevent the lost of previous position and history

29.

1 point

to inspect fiber optic cable

both ends should be disconnected for inspection

30.

1 point

How does symbol generator detect program error

odd parity

check sum

even parity

31.

1 point

How many kilobytes in 4M bytes

4096

1024

2048

32.

1 point

FMC database

is downloaded from disk

updates every 28 days

33.

1 point

which segments of typical 7-segment LED display will be on for BCD to 7-segment decoder/driver input of 1000

abcdefg

abcfg

abcdef

34.

1 point

Function of parity bit is to

even

sum of all bits

odd

35.

1 point

FMC fails

EICAS message "FMC FAIL" on side CDU fault annunciation light comes on

36.

1 point

convert 3052(8) to hexadecimal

629(16)

62A(16)

37.

1 point

what page does IRS initial position enter

pos int page

progress page

38.

1 point

121-1 speed of light in optical fiber

is never faster than in free space

increases with reractive index

always same no matter what material is

39.

1 point

a healthy ACARS MU front panel test button is pressed,

all LED will illuminate for a while and then green light on

all LED will illumniate for a whilte and then go off

All LED will illuminate annunciator lights come on for 3sec, then all off 3 sec, green lights on

40.

1 point

display test

system test

power up system test

switching test

41.

1 point

convert 100111011 base 2 to base 10

305

315

314

42.

1 point

IRU cannot display present position

entered position < computed position

computed position > stored position

entered position = stored position

43.

1 point

For software design - in case of a sensor failure, combine data from remaining functioning sensors with data from other sources. The most probable value from the failed sensor compute in algorithms`

recovery block

hardened kernels

analytical redundancy

44.

1 point

32 bits message consists of

16byte

8 byte

4 byte

45.

1 point

the output of AND gate with inputs A and B is 1. inputs A and B

1 & 1

1 & 0

0 & 0

46.

1 point

EFIS is failure(fault) monitored:

during power up

all the time (once operating)

when interrogated

47.

1 point

The output of NOT gate is 1. input

1

1 or 0

0

48.

1 point

an electrical and electronic device to be generated nuisance if it radiates radio F of

communication and navigation

electrical generator

emergency light

49.

1 point

Convert 111 base of 16 to binary

100010001

100100001

100100101

50.

1 point

GPS

consists of two GPS sensors and wo antennas

is indirectly to TRS and does not receive data from it