Mod 2 Exam

Question 1

Frequency Band

Answer 1

HF = 3MHz - 30MHz
VHF = 30MHz - 300MHz
UF = 300MHz - 3GHz

Question 2

Communication systems in RSAF context refers to?

Answer 2

Voice and Data Communication, and they are bi-direcitonal

Question 3

NVGs - Classification based on technology and magnitude light intensification

Answer 3

Image intensifier tubes
- Gen II
- Gen III
Classification
- Type I: Direct viewing
- Type II: Projected view
- Class A: 625nm
- Class B: 665nm

Question 4

What is the factor that affects angular resolution capability of a radar?

Answer 4

Beam width

Question 5

What are the two methods of achieving compatible lightning?

Answer 5

Filtered internal lighting

Floodlighting

Question 6

What does the VTR system consists of?

Answer 6

Airborne Video Tape Recorder (AVTR)

Cockpit TV System (CVTS)

Question 7

Which is not the means of incorporating MMI mod?

Answer 7

Correct answer:
Physical switch
Software soft-key
Delicated control panel

Question 8

Definition of ADF, VOR, DME and TACAN?

Answer 8

ADF - used to measure the bearing from 2 or more ground beacons to determine one’s position
VOR - operates in the VHF band and provides functions similar to that of ADF
DME - measures distance by transmitting a signal and waiting for a reply from the ground station
TACAN - provides A/C with bearing and navigational ai

Question 9

What is the function of ILS?

Answer 9

The ILS provides navigational aid when pilots are unable to establish visual contact with the ground

Question 10

What is the modes of FFI?

Answer 10

Mode 1 - Military Identification - (Security Identification)
Mode 2 - Military Secure Identification (Non-Crypto) - (Personal [aircraft] Identification)
Mode 3 - Air Traffic Identification - (Traffic Identification)
Mode 4 - Military Secure Identification
Mode C - Altitude Reporting
Mode S - Enhanced Surveillance and Communication

Question 11

What is the definition of MTBF, MTTR, MTTF and turn round time?

Answer 11

MTBF - Repairable
MTTF - non repairable
MTTR - average time required to repair a failed component

Question 12

When an equipment passed all EQT lab tests, this equipment will ____?

Answer 12

this does not mean that it also pass field verification testing

Question 13

In deriving the life cycle environmental profile of the equipment, what are the factors?

Answer 13

Configuration of hardware
Environment that is encountered
Platform with which the hardware interfaces
Interfaces with other equipment
Geographical location

Question 14

Which standard is for EMI EMC and what it is use for?

Answer 14

MIL-STD-461G (Military)
Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems
and Equipment (as of 2015)

Test:
Conducted Emissions, Conducted Susceptability
Radiated Emissions, Radiated Susceptability

Question 15

EW is use to achieve what?

Answer 15

Determine
Exploit
Reduce
Prevent Hostile use of Electromagnetic Spectrum
AOTA

Question 16

What are the new trend in EW?

Answer 16

• Suite-based, data fusion, unified EW.
• Self-Protection Jammer - Electronically steered antenna, digital RF memory and towered/expendable active decoys
• Radar Warning Receiver - Wide-Band Programmable Digital receivers and Advanced Emitter Location Techniques
• Chaff and Flare Dispensing System, Passive Missile Launch Warning System, Activities Missile Warning System and Laser Warning System

Question 17

ESM

Answer 17

Esm system can detail a radar greater than a distance, max distance than a max greater detection range, ex (wrg ans, generally more sensitive than radar)

Question 18

What are the effects of ecm

Answer 18

Prevent Lock-on
Delay Lock-on
Break Lock
Deny info
Not for target acquisition

Question 19

What are the flare parameter for IRCM effectiveness?

Answer 19

Flare rise time and burning tie - Very Short Rise Time
Flare/platform IR intensity ratio - Very High IR Output
Flare/platform relative trajectory
Missile field of view, launch angle and distance
Flare released time - Sufficient burn time
Ground reflection is not important

Question 20

What are the assumption and function of anti-spoofing?

Answer 20

Anti-spoofing guards against fake transmissions of satellite data by encrypting the P-code to form the Y-code

Question 21

About Data Link 16

Answer 21

Jam resistance - “Pseudo-noise coding and frequency hopping”
Improved security
Increased data rate (throughput)
Increased amount/granularity of information exchange
Reduced data terminal size
Digitised, jam-resistant, secure voice capability
Relative navigation
Precise participant location and identification
Increased no. of participants

Question 22

What is the function of GCS?

Answer 22

Controls the UAV during execution of the mission

Question 23

ADLS, what does it provides?

Answer 23

The ADLS provides communication capabilities between the ground stations and the UAV.
“Two Uplink” (UPL) command channels (primary UPL and secondary UPL) are transmitted
from the ground station to the UAV and “one Downlink” (DNL) report channel is transmitted
from the UAV to ground station

Question 24

DC power supply system

Answer 24

Cut out system

Question 25

Description of internal light control

Answer 25

The internal lighting control panel is found on the RHS of the cockpit while the external lighting control panel is found on the LHS

Question 26

System malfunction critical for safety of flight occurs when?

Answer 26

Flash warn on the display hud Audio alert Red on affected system

Question 27

What is the definition of of standard 1553?

Answer 27

The MIL-STD-1533 Data Bus is a twin wire twisted pair transmitting data using Serial Time Domain Modulation (TDM) messages in Pulse Code Modulation (PCM) form. It is the military standard for multiplexing

Question 28

The different classes and definition of gse?

Answer 28

Class 1 AGE are Engine or Motor Driven, with relatively complicated systems, whereas Class 2 AGE are non-engine or motor driven, with simple systems

Question 29

Main component of thermocouple thermometer?

Answer 29

Thermocouple Extension/Compensating Loads Indicator

Question 30

What is the purpose of having shock mount?

Answer 30

reduce vibrations of the main instrument panels

Question 31

What does HMDS consists of?

Answer 31

``` Mounting Platform Helmet Image source Generated by Computer Electronics Unit Optical System Deliver image to Helmet Visor Head tracking System Transmitter in cockpit and receiver on the helmet to track head viewing position ```

Question 32

What are the advantage of fly by wire system?

Answer 32

Higher manoeuvrability and eliminates conventional mechanical linkages

Question 33

Inertia Navigation system

Answer 33

-Transport Rate, which is the movement of A/C platform parallel to Earth’s surface, must be compensated for. As earth rotates at 15.0 -NS provides information on: Position Velocity Heading Coursev Course Deviation -Ring Laser ‘Gyro’s have no rotating parts, hence they are more reliable, easier to maintain, and have a low life-cycle cost.

Question 34

Basic function of accelerometer

Answer 34

Measure acceleration along it acceleration sensitive axis

Question 35

Starter Generator

Answer 35

- D.C. Shunt Generator - Directly coupled to engine - Driven by engine once engine started

Question 36

Air Data system - Pitot and static tube

Answer 36

All of the above - Air speed - Vertical speed - Altitude

Question 37

Application of flight recording system

Answer 37

- Accident / Incident Investigation - Maintenance > Aircraft fatigue analysis > Engine health monitoring for condition trend > Aircraft system monitoring, like performance trending, vibration trending > Maintenance diagnostics - Training - Mission planning is not

Question 38

ALS

Answer 38

- green light( fully lock) - Red (leg unlock) - no light (fully ‘up’ lock)

Question 39

What is the main rate sensing components in an auto pilot system?

Answer 39

Rate gyro- roll and pitch

Question 40

Safety margin

Answer 40

2 levels are allowed to fail