| Direct method of levelling is also known as |
A) barometric levelling
B) hypsometric levelling
C) hydrographic levelling
D) spirit levelling
| Seven readings were taken with a level as 1.345, 1.525, 0.785, 1.105, 1.855, 2.005 and 1.985. If the instrument was shifted after the third and fifth readings, the readings recorded under the backsight column would be |
A) 1.345, 0.785, 1.855
B) 1.105, 2.005
C) 1.345, 2.005
D) 1.345, 1.105, 2.005
| When differential leveling is done in order to connect a bench mark to the starting point of the alignment of any road, railway, canal project, it is called |
A) Profile leveling
B) Cross-section leveling
C) Reciprocal leveling
D) Fly leveling
| Reciprocal levelling eliminate the effect of: 1. Errors due to atmospheric refraction 2. Errors due to earth’s curvature 3. Errors in staff reading 4. Errors due to collimation line Which of these statements are correct? |
A) 1 and 2
B) 2 and 4
C) 1, 2 and 3
D) 1, 2 and 4
| In reduction of levels using the Height of Instrument method, Height of instrument refers to the |
A) height of the line of sight over the instrument station
B) height of the centre of telescope from the plane of foot screws
C) reduced level of the line of sight
D) reading on the staff from the instrument
| While doing the levelling process on a steep slope, the instrument should preferably be set up successively along a: |
A) Triangular path
B) Curved path
C) Zig-zag path
D) Straight path
| In a levelling exercise, which of the following sight(s) is/are taken on a change point (i) Fore sight (ii) Back sight (iii) Intermediate sight |
A) Only (i)
B) (i) and (ii)
C) (ii) and (iii)
D) (i), (ii) and (iii)
| Hypsometry is a method of |
A) Surveying of water bodies
B) Determining of elevations based on the boiling point of liquids
C) Measuring distances
D) Finding temperatures at different heights
| Trigonometric levelling is |
A) the same as ordinary levelling
B) levelling where precise instruments are used
C) levelling where precise methods are used
D) where elevations are obtained from vertical angles and staff readings
| _____ is an imaginary line on the surface of the ground having constant inclination to the horizontal |
A) contour gradient
B) contour
C) horizontal equivalent
D) vertical equivalent
