In dumpy level we can check only horizontal angles whereas in theodolite we can check vertical angles also.
The amount of oxygen you get with every breath at the peak of Everest is about 1/4 of what you get at sea level. At sea level, oxygen is about 21% of the gas you breathe. I don't know if that percentage changes with altitude.
All clouds are diffiened into four layers as follows- low level clouds-stratus, stratocumulus,nimbostratus and fog(really low stratus) medium level clouds-altocumulus,altostratus high level clouds-cirrocumulus,cirrostratus and cirrus. many level clouds- these are usually convective clouds like cumulonimbuses. stratocumulus for A+
A quarry is the name for a place where rock is taken from the ground. It is always above ground. A mine can be below ground or at ground level and is where ore is taken from the ground. Marble is quarried, coal is mined. That is the difference of a mine and a quarry.
With less mass above sea-level to support, the buoyant root rebounds upward an amount that is exactly proportional to the density difference between the root and the underlying mantle.
The correlation between precipitation rate and level of atmospheric pressure is very apparent. As atmospheric pressure decreases, the amount and intensity of precipitation increases.
Dumpty level can be used only for vertical measurements while a theodolite functions in both horizontal and vertical measurements.
A dumpy level (or spirit level) is used to establish the height difference between two measured points; or can be used to establish points (over an area/ or horizontal plane) which have the same height.Dumpy levels have been replaced by more modern laser leveling devices, but are still used extensively in the construction industry as they are cheap and easy to use (although not as accurate as laser levelers).Dumpy level
In the auto level, no adjustment for staff reading is required as the actual reading is seen from the eyepiece. In the dumpy level, to level the bubble, one has to keep the bubble parallel to two leveling screws and then right angle to the third screw. ... The line of sight is manually adjusted in the dumpy level.
A Dumpy Level is an older style level that required 'user' skill to set accurately. Some will have a spirit level to set accurately. An automatic level includes an internal compensator mechanism, which when set automatically removes any variation. Auto levels are thus much easier to use and set up time is a lot quicker
it is a spirit level
The auto level makes it easier to do the work. Using the dumpy level requires you to put in all of the work.
It as 3 following steps to adjust the dumpy level 1.SETTING 2.LEVELLING.3FOCUSING
One advantage of the dumpy level is that it is extremely mobile. A disadvantage is the difficult in using and making accurate measurements.
Dumpy
AIM/PURPOSE: To describe the instruction for the calibration of Dumpy Level to ensure that equipment is maintained in fully serviceable condition, is safe to operate and meets environmental requirements. FOR THE CALIBRATION OF DUMPY LEVEL The method described below is to be used on-site check prior to use as to the accuracy of the Dumpy level between calibration checks. This Work instruction shall be conducted at the commencement and completion of a contract. 1. Drive two pegs, "A" & "B", into the ground six metres or more apart 2. Set Dumpy up at "C" 3. Shoot a level at "A" and "B" 4. Relocate Dumpy to "D" and shoot a level at "A" and "B" 5. Record the appropriate result in the workbook. (Levels shot at "D" should be within ± 10mm of "C") D A C B
It is named so because of the shorter telescope it uses and also because in the original dumpy level the eye piece was an inverting lens such that it gave a shorter view for the same power of lens compared to wye level.
You can find all of these parts by looking up the diagram of a dumpy. They are available with a simple image search.