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WorksheetsDay 60-Nov 22-worksheet-Diploma-Chain surveying part 1
Total questions: 15
Worksheet time: 11mins
The number of arrows supplied with a standard survey chain is
5
8
10
12
The link of a metric chain is made of galvanized mild steel wire of diameter
2 mm
3 mm
4 mm
5 mm
Permissible error in a 30 m metric chain is
±3 mm
±5 mm
±8 mm
±10 mm
In which instrument is the principle of double reflection used?
Site square
Prism square
Optical square
Cross staff
Which tape is used for the highest precision measurements such as baseline measurement?
Steel tape
Synthetic tape
Invar tape
Fibre glass tape
Ranging by swinging a tape to obtain the minimum distance from a point to the chain line is known as
(a)
The instrument used for rapid distance measurement based on electromagnetic waves is
Passometer
Tellurimeter
Pedometer
Perambulator
Offset rods are heavier than ranging rods and are usually 6–8 m in length.
True
False
The distance measured along a survey line from its starting point is called (a) .
The perpendicular lateral distance from an object to the chain line is termed (a) .
The reflecting-type instrument used for ranging intermediate points is the (a) .
A person has an average pace length of 0.80 m. If he counts 150 paces, find the distance travelled.
(a)
An odometer wheel has a circumference of 1.0 m. It makes 250 revolutions. Find the distance measured.
(a)
Two parallel offsets on one side of a chain line are 6 m and 10 m, and distance between offsets is 20 m. Find the area of the trapezium.
(a)
Match the following
A. Arrow
Used for marking chain lengths
B. Ranging rod
Painted with red/white bands
C. Plumb bob
Used to transfer points to sloping ground
D. Offset rod
Wooden rod with notch for rough offsets
