Construction Of A Plain Scale

Construction Of Plain Scale Construction Of Diagonal Scale Let's see the construction of a plain scale in engineering drawing.this course or playlist explains the fundamentals of engineering drawing | graphics in a d. Get complete concept after watching this videotopics covered under playlist of scales: scales and types of scales, rf (representation fraction), classificati.

Draw Plain Scale In Engineering Drawing How Can Draw Plain Scale Youtube Construction of a plain scale using compass and protactor.please note that the acute angles and vertical lines perpendiculars will be drawn using a protactor. To construct a plain scale with a representative fraction (r.f.) of 1:50,000 for measuring miles and furlongs, follow these steps: determine the length of the scale: the scale's r.f. is 1:50,000, meaning 1 unit on the scale represents 50,000 units on the ground. given that 1 mile equals 1760 yards, the scale length for 1 mile can be calculated as:. The deficiency of plain scale of reading only in two dimensions is overcome by this scale. the principle of construction of a diagonal scale is based upon the fact that similar triangles have their like sides proportional and is explained below: refer to fig. 3.39, suppose a short line ab is required to be divided into 10 equal parts. The construction of the plain scale is explained below by a worked example. a 3 cm long line represents a length of 4.5 metres. extend this line to measure upto 30 metres and show on it units of metre and 5 metre. show the length of 22 metres on this line. i) the scale has to represent metre and 5 metres, hence it is a simple or plain scale.

Construction Of A Plain Scale Youtube The deficiency of plain scale of reading only in two dimensions is overcome by this scale. the principle of construction of a diagonal scale is based upon the fact that similar triangles have their like sides proportional and is explained below: refer to fig. 3.39, suppose a short line ab is required to be divided into 10 equal parts. The construction of the plain scale is explained below by a worked example. a 3 cm long line represents a length of 4.5 metres. extend this line to measure upto 30 metres and show on it units of metre and 5 metre. show the length of 22 metres on this line. i) the scale has to represent metre and 5 metres, hence it is a simple or plain scale. Full scale: when an engineering drawing is prepared to the actual size of the object, the scale used is termed as full size scale and the drawing is known as full size drawing. a scale with a ratio of 1:1 is known as a full size scale in engineering drawing. example: a 30 mm radius plain disc is represented on the drawing by a circle of 30 mm. This scale is not drawn like ordinary foot rule (30 cm scale). if a scale of 1 : 40 is to be drawn, the markings are not like 4 m, 8 m, 12 m etc. at every 1 cm distance. construction of such a scale is illustrated with the example given below: example 11.1: construct a plain scale of rf = 1 500 and indicate 66 m on it. solution. if the total.