SURVEYING QUIZ

Perpendicular to the principal line

Parallel to the principal line

None of these

Along the bisector of the angle between the principal line and a perpendicular line through principal plane

March 21

September 21

December 22

June 21

vertical circle is to its right and the bubble of the telescope is down

vertical circle is to its left and the bubble of the telescope is up

vertical circle is to its right and the bubble of the telescope is up

vertical circle is to its left and the bubble of the telescope is down

Height control

Planimetric control

Both planimetric and height control

None of these

Square method

Direct method

Cross-sections method

Tachometric method

None of these

remains unaffected

increases

decreases

gentle slope

plane surface

uniform slope

steep slope

only (iii)

both (ii) and (iii)

only (i)

both (i) and (iv)

Base line of the right photograph of stereo pair

Mean of the base lines of the stereo pair

Sum of the base lines of stereo pair

Base line of the left photograph of stereo pair

is used at the time of standardising the tape

makes the correction due to sag equal to zero

makes the correction due to pull equal to zero

neutralizes the effect due to pull and sag