1. A branch of surveying in which distances are measured indirectly by making observations through optical instruments is known as:
(A) Contouring
(B) Levelling
(C) Tacheometry
(D) All of these
2. The stadia diaphragm is provided for measuring:
(A) Elevation
(B) Bearing
(C) Horizontal distance
(D) Vertical distance
3. The stadia constant is denoted by:
(A) (f + d)
(B) f/i
(C) i/f
(D) (f – d)
4. The additive constant is denoted by:
(A) f/i
(B) (f – d)
(C) i/f
(D) (f + d)
5. The Subtense bar is used to measure:
(A) Horizontal distance
(B) Bearing
(C) Elevation
(D) Vertical distance
6. If the distance between the tacheometer and staff increases, then staff intercept by stadia hair will:
(A) Increase
(B) Decrease
(C) Remain constant
(D) All of these
7. Generally, value of multiplying constant is taken as:
(A) Zero
(B) 100
(C) 1
(D) 30
8. Subtense bar is used to find horizontal distance between two points up to such distance:
(A) 200 meters
(B) 100 meters
(C) 150 meters
(D) 50 meters
9. Stadia constant is also known as:
(A) All of these
(B) Constant factor
(C) Multiplying constant
(D) Additive constant
10. Method of tacheometry adopted when instrument has no stadia hair:
(A) All of these
(B) Fixed hair method
(C) Moveable hair method
(D) Tangential method
11. The difference of upper and lower staff readings taken by a tacheometer is called:
(A) Vertical distance
(B) Staff intercept
(C) Inclined distance
(D) Horizontal distance
12. Horizontal distance between two points can be measured with this instrument:
(A) Level
(B) Tacheometer
(C) Compass
(D) Theodolite