Fundamentals Of Surveying: Test Your Knowledge Trivia Questions Quiz

Mean Sea Level (MSL) refers to the average point between high and low tide over a period of time. It is used as a reference point for measuring elevations and depths. MSL is important in various fields such as navigation, surveying, and coastal engineering as it provides a consistent baseline for these activities. By taking into account the fluctuations of tides, MSL helps to establish a standard reference for measuring and comparing sea levels at different locations.

A benchmark (BM) is a point of known elevation. It is a reference point used in surveying and construction to establish vertical measurements. By knowing the elevation of a benchmark, surveyors can accurately determine the elevation of other points in the area. This helps in ensuring that structures are built at the correct height and that accurate measurements are taken for various purposes.

The correct answer is "Cut and fill section." This means that the road cross-section includes both areas where the earth has been cut away and areas where fill material has been added. This is a common technique used in road construction to create a level surface and accommodate changes in elevation. The presence of both cut and fill sections indicates that the road has been built to conform to the natural topography of the area.

A theodolite serves multiple functions. It can take horizontal angle readings (HR), vertical angle readings (VR), and it helps with determining the angle entrapped between two lines. Therefore, the correct answer is "All of the above."

The Pythagorean theorem states that in a right-angled triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. Therefore, the correct formula is A2 = B2 + C2, where A represents the length of the hypotenuse, and B and C represent the lengths of the other two sides.

Bearing angle is measured from the North direction and clockwise. This means that when determining the bearing angle of a point or object, you start from the North direction and rotate in a clockwise direction to the desired point. This convention is commonly used in navigation and surveying to provide a consistent and standardized way of measuring angles.

The best place to set up the level is where it can target most points if not all. This means that the level should be positioned in a location that allows it to accurately measure and assess the heights or slopes of multiple points on a surface. By doing so, the level can provide a comprehensive and reliable analysis of the terrain or structure being measured.

The correct reading for the staff illustrated is 1.64m.

A perpendicular offset is at 90 degrees because a perpendicular line intersects another line at a right angle. In other words, it forms a 90-degree angle with the line it is intersecting.

A measuring wheel can be used for linear surveys because it is designed to measure distances in a straight line. It typically has a wheel that rolls along the ground, and as it rolls, it counts the number of revolutions to calculate the distance traveled. This makes it an effective tool for measuring linear distances such as roads, paths, or fences. On the other hand, a staff is used for measuring vertical distances, a theodolite is used for measuring angles and horizontal distances, and a level is used for determining the horizontal plane.

A global coordinate system, also known as UTM (Universal Transverse Mercator), is a geographic coordinate system that divides the Earth into 60 zones, each with a unique grid system. It is widely used for mapping and navigation purposes, allowing locations to be accurately represented using a combination of easting and northing coordinates. UTM provides a standardized way of referencing locations on a global scale, making it easier to communicate and share geographic data across different systems and applications.

The correct answer is "Fill only section" because the road cross-section is filled with material, indicating that the road is built on top of the existing ground level. There is no indication of any cuts or excavations in the cross-section. Additionally, the statement "the formation level is below NGL" is not applicable to this question and does not provide any relevant information about the road cross-section.

The bearing angle for West direction is 270° because in a standard compass, North is at 0°, East is at 90°, South is at 180°, and West is at 270°.

The height of collimation (HOC) for a Level refers to the height of the instrument after it has been set up. This is an important measurement in surveying as it allows for accurate leveling and the determination of elevations. By knowing the HOC, surveyors can calculate the difference in elevation between different points on the ground.

A 3-sided shape is called a triangle. The sum of the angles in a triangle is always 180 degrees. This is a well-known mathematical property. Therefore, the correct answer is 180º.

A level and a theodolite are both surveying instruments used for measuring angles and distances. However, one way to distinguish between them is by looking at the scope. A level's scope does not tilt or rotate vertically, while a theodolite's scope does have the ability to tilt and rotate vertically. Therefore, if the scope of the instrument is unable to tilt or rotate vertically, it can be identified as a level rather than a theodolite.

The correct reading for the staff illustrated is 1.58m.

The correct reading for the staff illustrated is 1.50m.

After setting up the level, the first reading that is taken is the BS (Backsight) reading. The backsight reading is the measurement taken on a point of known elevation, typically a benchmark, to establish a reference point for the level. This reading helps in determining the height difference between the instrument and the benchmark, which is crucial for accurate leveling.

A compass precisely points towards Magnetic North. This is because the needle of a compass aligns itself with the Earth's magnetic field, which is generated by the movement of molten iron in the Earth's outer core. Magnetic North is not the same as True North, which is the direction towards the North Pole. The difference between Magnetic North and True North is known as magnetic declination and varies depending on the location on Earth. Therefore, in order to navigate accurately, it is important to account for this declination when using a compass.

A contour line represents a group of points with the same elevation. Contour lines are used on topographic maps to show the shape and elevation of the land. Each contour line connects points of equal elevation, allowing us to visualize the changes in elevation across a specific area. By studying contour lines, we can determine the steepness of slopes, identify valleys and ridges, and understand the overall topography of a region.

A measuring tape can be used for linear surveys as it allows for accurate measurement of distances in a straight line. It is a flexible and portable tool that can be easily carried and used to measure both short and long distances. The staff, theodolite, and level are not specifically designed for linear surveys. The staff is used for measuring vertical distances, the theodolite is used for measuring angles and horizontal distances, and the level is used for determining the horizontal level of a surface. Therefore, the measuring tape is the most suitable equipment for linear surveys.

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The correct answer is Ranging Pole. Survey stations are marked using a ranging pole, which is a long pole with graduations or markings on it. It is used to establish reference points or benchmarks for measuring distances and elevations during surveying activities. The ranging pole is typically placed at the survey station and serves as a visual reference for the surveyors to take measurements and record data accurately.

Chainage is a term used in linear surveying to refer to the measurement of distances along a survey line. It is commonly used to mark specific points along a route or track, such as roads, railways, or pipelines. Chainage is typically measured using a chain or tape, and it helps in determining the exact location and distance between different points on a survey line.

The correct answer is "Cut only section" because the road cross section shows a slope that has been excavated or cut into the existing ground. There is no indication of any filling or embankment in the section, suggesting that only cutting has been done to create the road. Additionally, the formation level being above NGL is not relevant to determining the correct answer.

The smallest gradations measurement on a staff in ordinary leveling is 0.01m. This means that the staff can be measured in increments of 0.01 meters, allowing for more precise and accurate measurements in the leveling process.

The correct formula to calculate the reduced level (RL) of the last point is HOC-FS. HOC stands for height of collimation, which is the height of the line of sight of the instrument. FS represents the foresight, which is the height of the staff at the last point. Subtracting the foresight from the height of collimation gives us the reduced level of the last point.

The term "staff" is used in levelling surveying to refer to a long, slender, and graduated rod that is used to measure vertical distances or elevations. It is commonly used in conjunction with a levelling instrument to determine the difference in height between two points. The staff is typically marked with units of measurement, such as meters or feet, and is held vertically at the points being surveyed. By reading the graduations on the staff, the surveyor can determine the difference in elevation between the points.

A3 paper size is 297mm*420mm. This size is commonly used for drawing surveying maps as it provides enough space to accurately depict the details of the map while still being manageable and easy to handle. The dimensions of A3 paper make it a suitable choice for surveying maps as it allows for a good balance between detail and convenience.

A 1:100 drawing scale means that 100cm measured in real life will be represented by 1cm on the drawing. This scale is commonly used in surveying to accurately depict large areas or structures on a smaller drawing. By using this scale, surveyors can effectively communicate measurements and dimensions in a more manageable and understandable format.

A theodolite is a term used in traverse surveying. It is a precision instrument that is used to measure angles in both the horizontal and vertical planes. It is commonly used in surveying to determine the direction and elevation of points on the earth's surface. The other options, such as staff, ranging pole, and measuring tape, are also used in surveying, but they are not specifically associated with traverse surveying.

The correct answer is "Running" because it is the only measurement type mentioned that is related to speed and movement. Strolling, walking, and trotting are all slower and less intense than running, which suggests that running is the appropriate measurement type for the survey line.