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What Are File Maintenance Techniques and Validation Techniques? File maintenance refers to the procedures that keep data current. File maintenance procedures include adding records when new data is obtained, modifying records to correct inaccurate data or to update old data with new data, and deleting records when they no longer are needed. Validation is the process of comparing data with a set of rules or values to find out if the data is correct. Many programs perform a validity check that analyzes data, either as you enter it or after you enter it, to help ensure that it is correct. Types of validity checks include an alphabetic check, a numeric check, a range check, a consistency check, a completeness check, and a check digit.
A small aircraft A is about to land with an airspeed of 80 mi/hr. if the aircraft is encountering a steady side wind of speed vw=10 mi/hr as shown, at what angle
A fireman reduces the exit area on a nozzle so that the velocity inside the hose is quite small relative to the exiting velocity. What is the maximum exiting velocity and what is the maximum height the water can reach if the pressure inside the hose ..
Consider an ideal gas refrigeration cycle using helium as the working fluid.
After the system equilibrates, what will be the concentration (in units of pg/L) of TCE in the aqueous phase?
Soil borings made at a site near Chicago indicate that the top 6m is lose and miscellaneous fill, with the groundwater table at 3m below the ground surface. Below this is a fairly soft blue-gray silty clay with an average water content of 30%. The bo..
Find an estimate of the concentration of CO at 6 PM if there was no CO in the air at 4 PM. (Assume that CO is conservative and that there is instantaneous and complete mixing in the box)
The thin steel plate, weighing 82 lb/ft2, is being lifted slowly by the cables AC and BC. Compute the distance x and find the corresponding tension in each of the cables.
A single-scoop ice cream cone is a composite body made from a single scoop of ice cream placed into a cone. Assume that the scoop of ice cream is a sphere with radius = 3.36cm that is placed into a 9.90cm tall cone. The interior height of the cone is..
Calculate the air mass flow rate in the shaft; the rate at which moisture is evaporated into the airstream and the rate at which heat is added to the shaft.
Demonstrate meaning of setting out as used engineering.
In prolonging a line by plunging the telescope between backsight and foresight, but not double centering, what angular error is introduced?
As shown, a load of mass 10 kg is situated on a piston of diameter D1 = 140 mm. The piston rides on a reservoir of oil of depth h1 = 42 mm and specific gravity S = 0.8.
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