SURVEY- LEVELLING ( 21-05-2025)

Multiple Choice

Which of the following best describes a temporary adjustment in leveling instruments?

• Adjustments made each time before use to ensure accuracy

• Adjustments made once during the instrument's lifetime

• Adjustments that cannot be changed after manufacturing

• Adjustments related to environmental conditions only

Multiple Choice

Which of the following is NOT a step involved in temporary adjustments?

• Setting up the level

• Levelling up

• Elimination of parallax

• Permanent fixing of instrument

Multiple Select

Which of the following statements about parallax is/are correct?

• Parallax is the apparent movement of image with respect to cross hairs.

• It can be removed by focusing objective.

• Parallax is caused by improper levelling of the instrument.

• Focusing by objective alone is enough to remove parallax.

Multiple Choice

Which of the following statements about the levelling head is correct?

• The upper plate is called trivet and the lower plate is called tribrach

• Both plates are called tribrach

• The upper plate is called tribrach and the lower plate is called trivet

• Both plates are called trivet

Multiple Choice

What is the purpose of turning the focusing screw when using a telescope for leveling?

• To make the image appear clear and sharp

• To adjust the distance between the level and staff

• To increase the magnification

• To align the cross hairs

Multiple Choice

Which of the following is NOT a fundamental line of a level?

• Line of Collimation

• Axis of Bubble Tube

• Vertical Axis

• Horizontal Axis

Multiple Choice

Permanent adjustment of level is checked by

• Two theodolite method

• Two peg method

• Three thoedolite method

• Three peg method

Multiple Choice

Pick up the correct statement from the following:

• If the image of the object does not fall in the plane of the cross hairs, parallax exists

  
  

• Parallax has removed by focussing both eye piece and objective

  
  

• The eye piece is adjusted for clear vision of the cross hairs

  
  

• All the above

  
  

Multiple Choice

If the staff is not held vertical at a leveling station, the reduced level calculated from the observation would be

• True RL

  
  

• More than true R.L

  
  

• Less than true R.L

  
  

• None of the above

  
  

Multiple Choice

Which of the following is NOT a type of self reading staff?

• Solid staff

• Folding staff

• Sopwith telescopic staff

• Target staff

Multiple Choice

What is the least count of the sopwith telescopic staff?

• 1mm

• 5mm

• 10mm

• 2mm

Multiple Choice

In a simple  levelling the back sight taken from a point A of RL is 100.00 is 2.850m and Foresight taken from point C is 0.520m Find RL at point C.

• 103.370 m

  
  

• 102.850 m

  
  

• 102.330m

• 97.150m

  
  

Multiple Choice

Which type of levelling involves determining the difference in elevation between two points that are far apart and not visible from each other?

• Simple levelling

• Differential levelling

• Fly levelling

• Profile levelling

Multiple Choice

What is the position of line of collimation While the observed reading is the less than the required true reading?

• Inclined downwards

  
  

• Inclined upwards

  
  

• Horizontal

  
  

• Parallel

  
  

Multiple Choice

What is reduced level, if height of line of collimation is 98.717m and inter sight is 1.238m?

• 96.389m

  
  

• 97.389m

  
  

• 97.479m

  
  

• 97.379m

  
  

Multiple Choice

Which levelling is done to connect the B.M to any intermediate point of the alignment for checking the accuracy of the work?

• Fly levelling

  
  

• Check levelling

  
  

• Direct levelling

  
  

• Indirect levelling

  
  

Multiple Choice

What is the colour code in profile levelling for height of embankment

• Black

• Red

• Blue

• Yellow

Drag and Drop

What is the name of level, if the fly levelling done at the end of day's work to connect the finishing point with the starting point on that particular day?


​

Placeholder

Drag these tiles and drop them in the correct blank above

Check levelling

Fly levelling

Direct levelling

Indirect levelling

Drag and Drop

....... levelling done based on boiling point of water​

Placeholder

Drag these tiles and drop them in the correct blank above

Hypsometric levelling

Barometric levelling

Trignometric levelling

Profile levelling

Multiple Choice

What is the another name of differential levelling?

• Simple levelling

  
  

• Profile levelling

  
  

• Continuous levelling

  
  

• Longitudinal levelling

  
  

Drag and Drop

What is the folded length of staff, while folding staff is not in use?


​

Placeholder

Drag these tiles and drop them in the correct blank above

2m

2.5m

3m

3.5m