Worksheets07-01-26 Surveyor Chain Survey - Paer 2
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
The main purpose of a check line in chain surveying is to
a)
Measure offsets accurately
b)
Fix the orientation of the survey
c)
Check the accuracy of measurements
d)
Serve as a reference line
2.
Which of the following lines can also serve as a check line in chain surveying?
a)
Base line
b)
Main chain line
c)
Tie line
d)
Offset line
3.
The base line in chain surveying is best described as
a)
The shortest line in the survey
b)
A randomly selected line
c)
The longest and most important chain line
d)
A line joining two offsets
4.
An offset in chain surveying is the
a)
Distance between two chain lines
b)
Perpendicular distance from object to survey line
c)
Distance measured along base line
d)
Distance between two stations
5.
Which instrument is commonly used to set out perpendicular offsets?
a)
Ranging rod
b)
Plumb bob
c)
Cross staff
d)
Measuring tape
6.
Swing offsets are used when
a)
Offsets are very long
b)
Ground is level and clear
c)
Object is inaccessible or ground is uneven
d)
High accuracy is required
7.
For plotting a circular object like a tree what measurements are essential?
a)
Two offsets to boundary
b)
One offset to boundary only
c)
One offset to center and radius
d)
Three offsets equally spaced
8.
Which type of cross staff can set out angles of 45 90 and 135 degrees?
a)
Open cross staff
b)
Adjustable cross staff
c)
French cross staff
d)
Optical square
9.
Assertion Long offsets reduce accuracy in chain surveying Reason Errors increase with length
a)
Both true and reason explains
b)
Both true but not explanation
c)
Assertion true reason false
d)
Assertion false reason true
10.
Assertion Open cross staff is more accurate than French cross staff Reason Open has perpendicular sights only
a)
Both true and reason explains
b)
Both true but not explanation
c)
Assertion true reason false
d)
Assertion false reason true
100 %
