Worksheets16-01-26 Surveyor Plane Table Survey - Part 2
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
The plane table board is commonly made of which material?
a)
Teak wood
b)
Well-seasoned pine wood
c)
Plywood
d)
Aluminium sheet
2.
Why is a plane table board constructed from multiple wooden strips?
a)
To increase weight
b)
For decorative appearance
c)
To avoid warping
d)
To reduce cost
3.
According to C L Kochher classification which of the following is a large plane table board?
a)
50 × 40 × 1.5 cm
b)
50 × 50 × 1.5 cm
c)
60 × 45 × 1.5 cm
d)
70 × 60 × 1.5 cm
4.
Which plane table allows rotation about a vertical axis and leveling by adjusting tripod legs?
a)
Coast survey table
b)
Johnson table
c)
Traverse table
d)
Tilting table
5.
Improved precision in a Johnson plane table is mainly due to
a)
Larger board size
b)
Three foot screws
c)
Ball and socket joint with vertical spindle
d)
Clamp and tangent screw
6.
Which plane table is best suited for hydrographic surveys and scientific mapping?
a)
Traverse table
b)
Johnson table
c)
Coast survey table
d)
Folding table
7.
The fiducial edge of an alidade is the edge which
a)
Is used only for sighting
b)
Touches the drawing sheet
c)
Is perpendicular to line of sight
d)
Is decorative in nature
8.
Which alidade is suitable for long inclined sights on uneven terrain?
a)
Plain alidade
b)
Prism alidade
c)
Telescopic alidade
d)
Circular alidade
9.
Assertion Telescopic alidade is more accurate than plain alidade Reason Telescopic alidade has a telescope and level tube
a)
Both A and R are true and R explains A
b)
Both A and R are true but R does not explain A
c)
A is true R is false
d)
A is false R is true
10.
Assertion Coast survey table gives higher precision than traverse table Reason Coast survey table uses three foot screws with clamp and tangent screw
a)
Both A and R are true and R explains A
b)
Both A and R are true but R does not explain A
c)
A is true R is false
d)
A is false R is true
100 %
