| 1. | A back sight indicates the ............... of the instrument ? | |
|
height
|
||
|
shifting
|
||
|
setting up
|
||
|
below
|
||
View Answer
Discuss in Forum
Report Question| 2. | A scale which has a common representative fraction, but read in different measures, is called a ? | |
|
comparative scale
|
||
|
plain scale
|
||
|
shrunk scale
|
||
|
diagonal scale
|
||
| 3. | When the curve is to be set out over a rough ground, the method used is ? | |
|
Rankine's method
|
||
|
tacheometric method
|
||
|
two theodolite method
|
||
|
either (b) or (c)
|
||
| 4. | If the fore bearing of a line is ........ its back bearing will be 36° 15 ? | |
|
143° 45'
|
||
|
36° 15'
|
||
|
216° 15'
|
||
|
126° 15'
|
||
| 5. | Which of the following statement is correct ? | |
|
The effect of refraction in levelling is to increase the staff reading
|
||
|
The combined effect of curvature and refraction in levelling is to increase the staff reading
|
||
|
In levelling, the effect of curvature is to decrease the staff reading
|
||
|
all of the above
|
||
| 6. | When several contours coincide, it indicates ? | |
|
a saddle
|
||
|
a ridge
|
||
|
a vertical cliff
|
||
|
a valley
|
||
| 7. | The horizontal distance between any two consecutive contours is called ? | |
|
horizontal equivalent
|
||
|
contour gradient
|
||
|
contour interval
|
||
|
vertical equivalent
|
||
| 8. | A curve of varying radius is known as ? | |
|
reverse curve
|
||
|
transition curve
|
||
|
compound curve
|
||
|
simple curve
|
||
| 9. | Cumulative errors that occur in chaining are proportional to ? | |
|
L
|
||
|
root L
|
||
|
1/L
|
||
|
1/root L
|
||
| 10. | A stadia telescope, in a tacheometer, is fitted with ? | |
|
cross hairs only
|
||
|
three additional horizontal hairs
|
||
|
two additional vertical hairs
|
||
|
all of these
|
||