Question 1 (Levelling)

Data Line A B C D X Y

1 1.448 1.404 -2.502 2.524 68.601 67.026

2 1.620 1.576 -3.831 2.867 73.302 71.727

Question 4 (Mapping)

Data Line

Theodolite Reference Object Point T Point U

E N Elev Inst Ht E N Horizontal

Angle to RO

Hor Dist

Pod Ht

VA HA Hor Dist

Pod Ht

VA HA

1 139.538 210.932 86.762 1.730 264.406

138.335 85 04 06 63.301 1.800 84 51 42 279 33 52 54.109 1.850 98 15 07 32 38 03

2 157.924 246.295 89.101 1.680 279.566

131.353 254 09 28 62.938 1.680 82 51 04 259 16 32 61.075 1.740 94 29 58 94 40 55

Question 6 (Trigonometric Heighting)

Data LineRadius

of earth

Slope Distance

A to B

At station A At station B

Elevation Inst Ht Tar Ht VerticalAngle

Inst Ht Tar Ht Vertical Angle

1 6351 8131.197 67.895 1.745 1.895 15 48 33 1.617 1.780 -15 51 56

2 6389 6895.300 54.824 1.676 1.826 13 06 05 1.548 1.711 -13 08 53

Question 7 (Contouring)

Data Line 1 2 3 4 5 6 7E N Elev E N Elev E N Elev E N Elev E N Elev E N Elev E N Elev

1 73 151 76.9 138 153 81.5 186 147 92.2 184 68 80.9 131 73 85.6 68 70 81.6 131 109 85.4

2 79 150 79.5 136 154 85.2 188 154 94.3 188 66 83.2 126 65 89.2 68 64 86.0 128 107 89.0