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a very simple geodetic instrument that is used to lay off angles that are multiples of 90° or of 45°.
In a prism square (see Figure 1), the direction of a ray originating from the flag on the right is changed by 90° after refraction and internal reflection. To lay off the angle by which the direction of the ray is changed, a second flag is set up in such a way that, when it is seen over the instrument, it is exactly above the image of the first flag in the instrument.
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What is a digital optical out cable used for?
It is used for transmitting stereo or multi-channel audio.
Surveying chaining instruments?
A chaining instrument is one used to measure the straight line distance between two points by comparing the distance to a known lenght. In past times a chain of known link distance was used, typically the chain 66 feet was used roughly 30m with 100 links. Nowadays if a surveying tape or a metal band is used, it is still called chaining.
What is a optical audio cable used for?
An optical audio cable is used to transmit digital audio (AC-3) signal from the source to the receiver, such as from a DVD player to a digital audio amplifier/receiver. You can transmit 5.1 dolby digital or DTS surround sound with an optical audio cable, same as digital coaxial audio cable.
Method of surveying for two point problum in plane table surveying?
Radiation intersection traversing resection
What are the importance of plane table in surveying?
Answer this question...pls help me and answer it
What is the most accurate method used to determine where the maas trailers are positioned?
optical surveying instrument
What is the preferred and most accurate method used to align the MAAS trailers and LWFB?
optical surveying instrument
How mach the erorr of dumpy?
A dummy error refers to the error made in an optical level that is used in construction and surveying.
What are the classes of surveying?
The main classes of surveying are geodetic surveying, topographic surveying, cadastral surveying, construction surveying, and hydrographic surveying. Geodetic surveying deals with large areas and high accuracy measurements for mapping the Earth's surface. Topographic surveying focuses on determining the natural and man-made features of a specific area. Cadastral surveying involves demarcating property boundaries. Construction surveying is done to guide the construction of infrastructure and buildings, while hydrographic surveying is used to map underwater features.
What is chain surveying as used in civil engineering?
chain surveying is one of the types of survey methods. It is used to survey short length lands
What are general classifications of surveying?
General classifications of surveying include geodetic surveying, plane surveying, topographic surveying, cadastral surveying, construction surveying, and hydrographic surveying. Geodetic surveying deals with large-scale measurements of the earth's surface, while plane surveying focuses on small-scale measurements on a flat surface. Topographic surveying involves mapping of the land's natural features, cadastral surveying deals with land parcel boundaries, construction surveying is used for building projects, and hydrographic surveying is for mapping bodies of water and their features.
What are ways statistics is used?
Finance. Surveying.
What are theodolites used to measure?
They are surveying instruments used to measure angles.
What is used to determine the availability of minerals?
Geological surveying.
What is the average size of a township?
6 to 54 square miles ==More specifically...== A township in surveying terms is 36 sections, or 36 square miles.
What does an optical engineer invent?
Optical means to “see”. If a person is an optical engineer he/she invents something used to see with.
What is the system of mathematics used for surveying an indirect measurements?
geometry
