Theodolite Part 2 (23/05/25)

Multiple Choice

Which of the following best describes the process of 'Lining In'?

• Establishing intermediate points on a straight line with both ends visible.

• Establishing intermediate points on a straight line with both ends not visible.

• Measuring the distance between two points using a tape.

• Marking random points on a field in same line.

Multiple Select

Which of the following are conditions for permanent adjustment of a theodolite?

• Axis of plate level parallel to trunnion axis

• Line of collimation parallel horizontal axis

• Horizontal axis perpendicular to vertical axis

• All of these

Multiple Choice

When the line of collimation is horizontal in a transit theodolite with a fixed vernier, what should the vertical circle vernier read?

• Zero

• Ninety

• One hundred eighty

• Forty-five

Multiple Choice

Which of the following statement is CORRECT when the theodolite is properly adjusted

• Horizontal line passes through the centre of the horizontal circle

  
  

• Tangent to plate bubble must be perpendicular to horizontal axis

  
  

• Tangent to plate bubble must be perpendicular to vertical axis

  
  

• Vertical line passes through the centre of the vertical axis

  
  

Multiple Choice

Which of the following is NOT an application of a theodolite?

• Measuring magnetic bearing

• Measuring true bearing

• balacing in

• Prolonging a line

Multiple Choice

The value of deflection angle varies from

• 0 to 90°

• 0 to 180°

• 0 to 270°

• 0 to 360°

Multiple Choice

In deflection angle calculation ,Use minus sign when the delfection angle is ..............

• Left

  
  

• clockwise

• Right

  
  

• Any of these

Drag and Drop

The algebraic sum of deflection angles of a closed traverse is ___ degrees.​

Placeholder

Drag these tiles and drop them in the correct blank above

360

90

180

270

Multiple Choice

The sum of all exterior angle = 

• (2n-4)90

• (n-2)180

• (n+4)90

• (n+2)180

Multiple Choice

Which of the following statements is correct regarding the relationship between included angle and deflection angle in a traverse?

• Included angle + deflection angle = 180°

• Included angle + deflection angle = 90°

• Included angle = deflection angle

• Included angle - deflection angle = 180°

Multiple Select

Which among the following is most accurate methods for measuring horizontal angle?

• Ordinary method

• Repetition method

• Reiteration method

• Reflection method

Drag and Drop

For precise ordinary work number of repetition usually adopted is ​

Placeholder

Drag these tiles and drop them in the correct blank above

3

2

5

6

Multiple Choice

Error due to non parallelism of the axis of the telescope level and the line of collimation is an example of

• Instrumental error

  
  

• Personal error

  
  

• Natural error

  
  

• None of these

Multiple Choice

The spire test is used to:

• To make the horizontal axis perpendicular to vertical axis

  
  

• To make the line of sight and perpendicular to horizontal axis

  
  

• To make the vertical circle indicate zero, when line of sight is perpendicular to the vertical axis

  
  

• It is used to make the plate bubble central, when the vertical axis is truly vertical

  
  

Multiple Choice

Direct ranging by theodolite is 

• Random line method

  
  

• Balancing -in

  
  

• Lining-in

  
  

• None of the above

  
  

Drag and Drop

.........................is the angle which a survey line makes with the prolongation of the preceeding line and is equal to the difference between the included angle and 180°​


​

Placeholder

Drag these tiles and drop them in the correct blank above

Deflection angle

Azimuth from back line

Direct angle

Angle to the right

Multiple Choice

In a theodolite the line of collimation is

• Parallel to axis of plate  levels

  
  

• Parallel to vertical axis

  
  

• Perpendicular to truninon axis

  
  

• Parallel to horizontal axis