No. of Printed Pages : 3

MGY-003

POST GRADUATE CERTIFICATE IN GEOINFORMATICS (PGCGI) Term-End Examination

C10168

June, 2015

MGY-003 : GLOBAL NAVIGATION SATELLITE SYSTEM AND GEOGRAPHIC INFORMATION SYSTEM

Time : 2 hours Note :

Maximum Marks : 50

All questions are compulsory. The marks for each question are indicated against it.

1. Answer all parts : (a) Fill in the blank spaces with appropriate word(s) : (i) The word 'RIX' stands for (ii) The word 'TIGER' is an abbreviation of (iii) The word 13GPS' stands for (iv) `DLG' stands for

MGY-003

1

P.T.O.

(b) State if the following statements are 3x1=3 True (T) or False (F) : (i)

Zonal operations do not perform operations on zones of contiguous blocks of pixels. (True/False)

(ii) Data structure is the format of the data as stored and manipulated on computer. (True/False) (iii) Topology is the organisation of spatial relationships between features in a GIS. (True/False) (c) Match the items given in Column A 'with • those in Column B : 3x1=3 Column B

Column A (i)

Line-in-polygon (1) Overlay

(ii) Spaghetti

(2) GNSS

(iii) Speed

(3) Vector data model ,

2. Write short notes on any following :

four of the 4x5=20

(a)

Any five sources of error in GPS observations

(b)

Spatial data structure

(c)

Overlay analysis

(d)

Geospatial data input

(e)

GPS signal structure

(0 Raster to Vector data conversion 2 MGY-003

3.

(a) Discuss in detail the GPS survey planning 10 and procedures. OR (b) What is GIS ? Describe in detail its components with suitable illustrations, 10 wherever required.

4.

(a) What do you understand by data quality in the context of GIS ? Explain the 10 components of data quality. OR (b) Discuss in detail the approaches and 10 models of GIS project design.

MGY-003

3

1,000

June 2015

(ii) Data structure is the format of the data as stored and manipulated on computer. ... (a) What do you understand by data quality in the context of GIS ? Explain ...

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