IDENTIFY THE ANSWER ON THE FOLLOWING PROBLEMS. NO NEED FOR COMPLETE SOLUTIONS. THANK YOU. 1. A topographic map has a contour interval of 1/2m and a scale of 1:1200. If two adjacent contoursare 25mm apart on the map, the average slope (in grads) of the ground between the contours is2. On a map the distance between the end points of a line AB (assumed to be of uniform slope) is10.8cm. If the elevation of points A and B are 1809.5 and 1831.8, respectively, it can be analyticallydetermined that the contour line with an elevation of 1815 meters will cross line ABfrom point A.3. On problem 2, the contour line with anelevation of 1820 meters will cross line AB4. Onproblemmeters will cross line ABfrom point A.5. On problem2, the contour line with an elevation of 1830 meters will cross line ABfrom point A.6. The difference between the upper stadia hair reading and the lower stadia hair reading is termedthe7. A device used for quick and accurate measurement of distances which consists of a two-meter barmounted horizontally on a tripod is the8. The distance from the center of the instrument to the principal focus is termed the9. The scale ratio which is suitable to replace the equivalent scale 1 cm = 200 meters, is10. A planimeter map does not attempt to portray heights or differences in elevation. It is only arepresentation of the earth's surface inhorizontal dimensions.11. Maps which represent the earth's surface in three dimensions and which usually uses contours toindicate relief is termed a12. When the scale of a map is given as 1 centimeter = 1 kilometer, it is referred to asfrom point A.2, the contour line with an elevation of 182513. For purposes of orientation, every map must display a14. The configuration or shape and roughness of the ground is referred to as15. Contours are shown on maps as the traces of level surfaces ofelevation.16. The elevations of important features and critical points such as road junctions, peaks, summits,sags, and highway crossings are indicated on the map and are known as17. Hachures are a series of short lines drawn in the direction of the slope. For a steep slope the linesareand closely spaced.18. Such lines resemble contours, but are not drawn with the same degree of accuracy. They aredrawn when not enough vertical control is available or when the surface is too irregular or intricate tocontour.19. A representation of the terrain done in three dimensions to suitable horizontal and vertical scalesto provide a striking and realistic expression of topography is called_20. The rate of rise or fall of the ground surface is known as its

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