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Figure 18 Use Figure 18 to answer questions 22-26. Elevations given are in feet. Lake 22. What is the contour interval for th

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22) CONTOUR INTERVAL OF FOR THE MAP 100.

23)FLOW DIRECTION OF FISH CREEK IS WEST TO EAST IT HAS BEEN SHOWN IN MAP.

BY USING THE PRINCIPLE OF POINTING V

FLOW DIRECTION Figure 18 Use Figure 18 to answer questions 22-26. Elevations given are in feet. Lake 22. What is the contour

24)I WOULD NOT TREK IN NORTHERN SLOPE OF FISH CREEK,BECAUSE IN THIS AREA MAP SHOWS CONTOUR IS VERY CLOSE .SO IT MUST BE A STEEP SIDED SLOPE.

SO TREKKING IN THIS REGION WOULD BE DANGEROUS.

25)CALCULATION OF SLOPE BETWEEN A AND B.

GIVEN VERTICAL ELEVATION OF LAKE 800 FEET

AT POINT A ELEVATION WILL BE 850 FT AND POINT B ELEVATION WILL BE 1350 FT

TAKING PHOTO SCALE 4.1CM =6MILES

1CM=1.46 MILES

MAP DISTANCE BETWEEN A AND B 1.3CM

SO 1.3CM DISTACE WILL BE=1.3*.1.46=1.898MILES

CONVERTING INTO FEET

1MILES=5280 FT

SO =1.898*5280=10021.44FT APPROXMATELY

TOTAL VERTICAL SEPARATION=1350-850=500FT

HORIZONTAL SEPARATION=10021.44FT

SLOPE=ARC TAN ( VERTICAL/HORIZONTAL)=ARC TAN(500/10021.44)=2.85 DEGREE

26) SIMILARLY AT POINT C AND D

ELEVATION AT C=1500FT

AT D ELEVATION=1000FT

VERTICAL SEPARATION-500FT

1CM=1.46MILES

DISTANCE BETWEEN C AND D =1.5CM

CONVERTING INTO MILES=1.5*5280*1.46=11563.2FT

SLOPE=ARC TAN ( VERTICAL/HORIZONTAL)=ARC TAN(500/11563.2)=2.47 DEGREE

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