1. A back sight on a bench mark of RL 100m on the floor of tunnel is 3.25m. The inverse staff reading on a roof station of the tunnel is 1.25m. The RL of the roof station is . . . . . . . .
2. A concave lens provided in telescope between the object lens and eye piece to eliminate the additive constant (f + d) from the Tachernetric distance equation is known as an . . . . . . . . lens.
3. The BB of line AB is 195° and the angle BAC is 150° measured in clockwise direction. The BB of line AC is . . . . . . . .
4. ABCDA is a closed traverse and the bearings of lines are . . . . . . . .
AB = 124° 30', BC = 68° 15', CD = 310° 30', DA = 200° 15'. The sum of the interial angles is . . . . . . . .
AB = 124° 30', BC = 68° 15', CD = 310° 30', DA = 200° 15'. The sum of the interial angles is . . . . . . . .
5. The smallest distance on the paper which can be distinguished in plotting is
6. The representative fraction of scale 1mm = 0.05m is equal to . . . . . . . .
7. A traverse fault is one whose general direction is
8. The levelling instrument not provided with spirit level.
9. The global positioning system reached full operational capacity in . . . . . . . .
10. If the chain is found to be too long while testing it is adjusted by . . . . . . . .
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