An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as__________________?

Related Mcqs:

1. The difference between a level line and a horizontal line is that_______________?

   A. level line is a curved line while hori-zontal line is a straight line
   B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line
   C. horizontal line is normal to plumb line while level line may not be normal to the plumb line
   D. both are same

2. In direct method of contouring, the process of locating or identifying points lying on a contour is called_______________?

   A. ranging
   B. centring
   C. horizontal control
   D. vertical control

3. The process of turning the telescope about the vertical axis in horizontal plane is known as______________?

   A. transiting
   B. reversing
   C. plunging
   D. swinging

4. If the true bearing of a line AB is 269° 30′, then the azimuth of the line AB is_____________?

   A. 0° 30′
   B. 89° 30′
   C. 90° 30′
   D. 269° 30′

5. If the reduced bearing of a line AB is N60°W and length is 100 m, then the latitude and departure respectively of the line AB will be________________?

   A. +50 m, +86.6 m
   B. +86.6 m, -50 m
   C. +50m, -86.6 m
   D. +70.7 m,-50 m

6. The angle between the prolongation of the preceding line and the forward line of a traverse is called ________________?

   A. deflection angle
   B. included angle
   C. direct angle
   D. none of the above

7. Which of the following methods of offsets involves less measurement on the ground?

   A. method of perpendicular offsets
   B. method of oblique offsets
   C. method of ties
   D. all involve equal measurement on the ground

8. The permissible error in chaining for measurement with chain on rough or hilly ground is_____________?

   A. 1 in 100
   B. 1 in 250
   C. 1 in 500
   D. 1 in 1000

9. The horizontal angle between the true meridian and magnetic meridian at a place is called______________?

   A. azimuth
   B. declination
   C. local attraction
   D. magnetic bearing

10. Horizontal distances obtained by thermometric observations_________________?

    A. require slope correction
    B. require tension correction
    C. require slope and tension corrections
    D. do not require slope and tension corrections