71. For a closed traverse the omitted measurements may be calculated . . . . . . . .
72. If the vertical circle is on the left side of the observor the theodolite in face . . . . . . . . condition.
73. For checking closed traverse the total sum of included angles is equal to . . . . . . . .
74. If the radius of a simple curve is R the length of the chord for calculated off sets by the method of chords produced, should not exceed.
75. A location survey is performed to . . . . . . . .
76. The positive latitude is known as . . . . . . . .
77. In tachometric observations, the staff readings are found to be 2.4m, 3m and 3.6m. If the angle of elevation is 45m the multiplying factor is 100 and the additive constant is 0.3m then horizontal distance between the staff and the instrument station expressed in m is . . . . . . . .
78. Ranging rod is used for making, position of . . . . . . . .
79. In a double line field book, the space between the two lines is used for . . . . . . . .
80. For highly precise works . . . . . . . . tape is used.
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