OpenStreetMap Class 12 HSC Exercise Solutions, students will find clear, step-by-step answers to all textbook questions written in simple and exam-friendly language. These solutions are designed to help students prepare effectively for board examinations, improve conceptual understanding, and score better marks.
Open Street Map Class 12 HSC Exercise Solutions
Q.1 Fill in the blanks.
1. In open street map several edits in one session are saved in a ————–
Show Answer ⟶2. In open street map, POI stands for ————
Q.2 Choose the most correct answer.
1. Following is an example of in-browser open street map editor.
a) iD
b) Libre Writer
c) Emac
d) Gedit
2. Follwing is an example of in-browser open street map editor.
a) Ubuntu
b) Nano
c) Emac
d) Potlatch
Q.3 Multiple Choice. (Two Correct Answers)
1. Following two are in-browser editors.
a) iD
b) Nano
c) Emac
d) Potlatch
e) inkscape
2. Following two are open street map tags
a) iD
b) buiding
c) Emac
d) Potlatch
e) park
Q.4 Multiple Choice. (Three Correct Answers)
1. Following three are basic elements in open street map.
a) Point
b) Histogram
c) Colour
d) Line
e) Area
f) Charge
2. Following three are tasking managers in open street map.
a) HOT
b)Maproullete
c) Dolphin
d) Line
e) Synaptic
f) TeachOSM
Q.5 Match the following.
| A | B |
|---|---|
| Multipolygon | a) Imagery |
| Tag | b) iD |
| In-browser editor | c) Lake with island |
| Satellite | d) key=value |
Answer:
| A | B |
|---|---|
| Multipolygon | c) Lake with island |
| Tag | b)d) key=value |
| In-browser editor | b) iD |
| Satellite | a) Imagery |
Q 6. Answer in brief.
1. What are the various applications of map ?
Answer: The various applications of map are:
- Navigation & Routing – Used in GPS devices, mobile apps, and transport systems.
- Urban Planning – Helps governments plan roads, utilities, and public services.
- Disaster Management – Assists in relief operations by mapping affected areas.
- Tourism – Provides information about landmarks, hotels, and attractions.
2. Distinguish between Open Street Map and closed commercial maps.
Answer:
| OpenStreetMap (OSM) | Closed Commercial Maps |
|---|---|
| Map data is created and updated by volunteers | Map data is maintained by companies |
| User can edit, modify and reuse map data | Users are not allowed to edit or reuse the data |
| Data is available under an open lincense | Data is protected by copyright licenses |
| Data is used for education, research and commercial purpose free of cost | Mostly used by commercial purpose and the data is not free |
| Example: OpenStreetMap | Example: Google Map and Bing Map |
3. Explain any two basic elements of Open Street Map.
Answer: The two basic elements of Open Street Map are:
- Point or Node: A point/node is the smallest object on a map. It can mark a Point of Interest (POI) like a shop, café, tree, or lamp-post. Each point is given tags for details and has unique latitude and longitude coordinates to show its exact location.
- Lines or Ways: More complex objects like roads, rivers, and boundaries are shown using Ways (lines or paths). Ways are the lines connected by nodes.
4. What is the purpose of tasking managers in OSM ?
Answer: Tasking Manager is a free and open-source software tool which divides the mapping work of a certain area into small pieces (tiles) and distributes these tiles among mappers. The idea was first introduced by the Humanitarian OpenStreetMap Team (HOT) to support coordinated mapping efforts.
5. Write a note on JOSM.
Answer: JOSM is a portable desktop application. Just download the jar file and execute. Java Runtime Environment (JRE) is required to run JOSM. The main advantage of the JOSM editor is that it allows offline editing.
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