61. Which point of the planimeter reamins fixed in paper.
62. At the equator the dip is . . . . . . . .
63. Find out the levelling in which the change in atomspheric pressure is recorded.
64. The fore bearing of a line is 179° 45', the back bearing of the line . . . . . . . .
65. The bearing of AB is 165° and the angle BAC is 72° measured in anticlockaise directions, the bearing of AC is . . . . . . . .
66. The departure is considered as positive when the projection is towards the . . . . . . . .
67. The most important item to be shown in a plan is . . . . . . . .
68. In the process of chaining, ranging rod is carried by . . . . . . . .
69. Centering error of a theodolite produces an error . . . . . . . .
70. In presmatic compass, which enables the sighting of luminous objects . . . . . . . .
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