A tall building like the “Burj” in Dubai is almost 818 meters (2684 feet) above the ground level, which is currently the world’s tallest man-made structure. But how can you calculate it’s height? There are actually several methods of doing so without leaving the ground. Everyone is aware of the Empire State building or the Eiffel Tower….
The E indicates an exponent, as in scientific notation, followed by a positive or negative number, representing the power of 10 by which the given conversion factor is to be multiplied before use.
Weight Calculator Standard conversion factors INCH = 25.4 MILLIMETRE FOOT = 0.3048 METRE YARD = 0.9144 METRE MILE = 1.6093 KILOMETER ACRE = 0.4047 HECTARE POUND = 0.4536 KILOGRAM DEGREE FARENHEIT X 5/9 – 32 = DEGREE CELSIUS MILLIMETRE= 0.0394 INCH METRE = 3.2808FOOT METRE = 1.0936YARD 1) MILD STEEL (MS) SHEET WEIGHT (KGS) =…
Contouring needs the determination of elevation of various points on the ground and at the same the horizontal positions of those points should be fixed. To exercise vertical control levelling work is carried out and simultaneously to exercise horizontal control chain survey or compass survey or plane table survey is to be carried out. If the…
MAPPING After completing field work in chain survey and compass survey lot of office work is involved to prepare the plan of the area surveyed. In plane table survey office work is less. The office work involved consist of 1. Applying necessary corrections to measurements 2. Drawing index plan 3. Selecting scale 4. Selecting orientation…
It is combination of EDM instrument and electronic theodolite. It is also integrated with microprocessor, electronic data collector and storage system. The instrument can be used to measure horizontal and vertical angles as well as sloping distance of object to the instrument. Microprocessor unit processes the data collected to compute: 1. Average of multiple angles…
Sun light or artificially generated electromagnetic waves consists of waves of different lengths. The spectrum of an electromagnetic wave Among these waves microwaves, infrared waves and visible light waves are useful for the distance measurement. In EDM instruments these waves are generated, modulated and then propagated. They are reflected at the point up to which…
Horizontal sight is taken as zero vertical angle. Angle of elevations are noted as +ve angles and angle of depression as –ve angles. To measure vertical angle the following procedure may be followed: 1. Complete all temporary adjustment at the required station. 2. Take up levelling of the instrument with respect to altitude level provided on the…
Theodolite is used for measuring horizontal and vertical angles. For this the theodolite should be centered on the desired station point, levelled and telescope is focussed. This process of cantering, levelling and focussing is called temporary adjustment of the instrument. 1. Set the theodolite at Q with vertical circle to the left of the line of sight…
Shows a sectional view of a typical Vernier theodolite and plate 16.1 shows photograph of such theodolite. Main parts of such a theodolite are: 1. Telescope: A telescope is mounted on a horizontal axis (trunnion axis) hence it can rotate in vertical plane. Its length varies from 100 mm 175 mm and its diameter is 38…