WorksheetsMeasurement Of Distance - Part 5&6
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The top of an offset rod is provided with a hook mainly for —
a)
Ranging long survey lines
b)
Fixing the rod into soft soil
c)
Pulling chain during chaining
d)
Measuring small offsets by holding tapes
2.
In chaining the follower is responsible for —
a)
Dragging the chain forward
b)
Inserting arrows
c)
Giving instructions and picking up arrows
d)
Measuring offsets
3.
Typical chaining error in hilly areas is —
a)
1 in 2000
b)
1 in 1000
c)
1 in 500
d)
1 in 250
4.
Stepping method is preferred when slope is —
a)
Uniform
b)
Irregular
c)
Very small
d)
Very steep
5.
If sloping length L and angle θ are known horizontal distance is —
a)
L sin θ
b)
L tan θ
c)
L cos θ
d)
L sec θ
6.
The instrument used in L and h method is —
a)
Theodolite
b)
Hand level
c)
Abney level
d)
Plane table
7.
Hypotenusal allowance is applied because chain measures —
a)
Vertical distance
b)
Horizontal distance
c)
Hypotenuse on slope
d)
Shorter length
8.
Hypotenusal allowance formula is —
a)
l(1-secθ)
b)
l secθ
c)
l(secθ-1)
d)
l tanθ
9.
For very small slopes tanθ ≈ —
a)
θ
b)
1/n²
c)
n
d)
sec n
10.
In stepping method measuring downhill is easier because —
a)
Chain weight increases accuracy
b)
Follower stands higher
c)
Chain aligns horizontally in steps
d)
Sighting improves
100 %
