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Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER VI • EXAMINATION SUMMER 2018
Subject Code:3360107 Date: 07-05 2018
Subject Name: AIRCRAFT NAVIGATION AND RADIO SYSTEM
Time:10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.
Q.1
Answer any seven out of ten.
14
1.
What is multiplexing?

Multiplexing
2.
What is ARINC, ITU?

ARINC, ITU
3.
Difference between AM, FM, PM.

AM, FM, PM.
4.
What is unidirectional, bidirectional line?

Unidirectional, bidirectional line
5.
Difference between dead reckoning and position fixing.

dead reckoning, position fixing
6.
What is LORAN and RNAV?

LORAN, RNAV
7.
What is master and slave station?

Master and slave station
8.
Explain electromagnetic wave.

electromagnetic wave.
9.
What is modulation?

Modulation
10.
Difference magnetic north and true north.

magnetic north, true north.
Q.2

Explain line of position and homing.
03




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OR

Explain LORAN.
03

LORAN


Explain longitude and latitude.
03

longitude, latitude

OR

Explain GPS.
03

GPS


Write down types of charts.
04



OR

Explain DECCA
04

DECCA


Explain INS with block diagram.
04

INS

OR

Explain typical triple INS with block diagram.
04

INS

Q.3

Explain basic radio transmitter block diagram,
03
3

radio transmitter

OR

Explain basic super heterodyne transmitter block diagram,
03

super heterodyne transmitter


Explain microcomputer and its basic parts.
03

Microcomputer

OR

Explain OMEGA navigation.
03

OMEGA navigation


Draw the block diagram of basic microcomputer organization.
04

microcomputer organization

OR

What is control bus, address bus, data bus?
04




Explain dead reckoning?
04

dead reckoning

OR

Explain map reading and celestial navigation.
04



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Q.4

Write down purpose and role of nautical charts.
03


Nautical

OR

Write down sections of charts.
03




What is HDG, TK, TAE, and WPT?
04

HDG, TK, TAE, WPT

OR

What is integrated navigation system?
04

Integrated system


Draw typical navigation system aerial location.
07



Q.5

Draw navigation nomenclature.
04





Write down source of chart and number formats.
04




Explain VOR in detail.
03

VOR


What is DTK, DA, and XTK?
03

DTK, DA, XTK