What is an example for obstacles to chaining?

What is an example for obstacles to chaining?

A building is an obstacle to both chaining and ranging. A river is an obstacle to chaining but not ranging. A hill is an obstacle to ranging but not chaining.

What do you understand by obstacles in chaining?

Obstacle in chaining may be classified as. 1) When chaining is free but vision is obstructed. 2) When chaining is obstructed but vision is free. 3) When chaining and vision are both obstructed.

How an obstacle which interrupts chaining but not Ranging can be crossed over in chain survey?

Explanation: There may be two cases of this obstacle i.e obstacle to chaining but not ranging, when it is possible to chain round the obstacle, i.e a pond, hedge etc and when it is not possible to chain round the obstacle e.g. a river. 5. Both ends of the line may not be visible from intermediate points on the line.

What are the types of obstacles?

Different types of obstacles include physical, economic, biopsychosocial, cultural, political, technological and military.

What is the procedure of chain survey?

Chain Survey Procedures

1. Firstly, inspect the area to be surveyed and prepare key plan.
2. Then, mark stations using suitable means such as fixing ranging poles, driving pegs, and digging and fixing a stone.
3. After that, specify the way for passing the main line which should go through the center of the field.

What are the methods of chain surveying?

Chain survey steps:

• Reconnaissance. The preliminary inspection of the area to be chain surveyed is called reconnaissance.
• Marking stations. Stations are marked with ranging rod, or wooden peg, driving a nail or spikes if hard surface, or embedding stone with a cross mark.
• Reference sketches.
• Running survey line.

Which of the following is not required for chain surveying?

3. Which of the following is not required for chain surveying? Explanation: Dumpy level is used in levelling not in chain surveying.

How do you overcome obstacles?

However, when faced with challenges in your life, here are 7 tips I’ve learned to overcome obstacles:

1. Don’t complain. People don’t want to hear woe is me over and over again, especially if you do nothing about it.
2. Face it head on.
3. Stay positive.
4. Be realistic.
5. Don’t try to out-do people.
6. Emotional side.
7. Break it down.

How do you overcome obstacles at work?

Fortunately, there are methods and strategies you can implement to overcome almost any obstacle, including:

1. Remain positive.
2. Admit when you need help.
3. Look at the challenge from all sides.
4. Know when to delegate.
5. Set small goals.
6. Job search challenges.
7. New hire challenges.
8. Challenges after receiving a promotion.

What is the aim of chain survey?

The principle of chain surveying is to divide the area to be surveyed into a network of connected triangles as a triangle is the only simple figure that can be plotted from the lengths of its sides measured in the field. The field measurements must be so arranged that the area can be plotted by laying down triangles.

What are the advantage of chain survey?

Advantages of Chain Surveying Chain surveying is the simplest method of surveying. It is relatively simple to conduct. 2. It does not require any costly equipment and tools.

What is an obstacle in surveying?

Chaining Obstructed, Vision Free 3. Chaining and Vision Both Obstructed. It sometimes happens that a survey line passes through some object such as a pond, a building, a river, a hedge etc. which prevents the direct measurement of that part of the line which the object intersects. The interfering object in such a case is called on obstacle.

What is an example of an obstacle to chaining?

Intervening trees and bushes are the examples of such obstacles. This obstacle to chaining may be overcome by measuring along a random line as shown in Fig. 12.20. In this case required length In this type the ends of lines are visible but chaining is obstructed.

How do you cross an obstacle with random line method?

The obstacle of this kind may be crossed over by “Random line method”. In fig. 3.20, let AB be the line whose length is required. From A, run a line AB’ called a random line, in the approximate convenient direction of AB and continue it until point B is visible from B’ Chain the line to B’ where BB’ is perpendicular to AB’ and measure BB’.

What are the methods of crossing over obstacles?

The obstacle of this kind may easily be crossed over by reciprocal ranging and length measured by stepping method of chaining. (ii) Both ends may not be visible from any intermediate point such as in the case of a jungle. The obstacle of this kind may be crossed over by “Random line method”.