uses of trignometry in construction

Constructions are to be drawn by using ruler and compass only. It must be stressed that not all constructions are possible using a compass and straight edge alon..

The figure below shows the construction of an electric motor. The main parts of an electric motor are: D.C. Motor the armature coil ABCD mounted on an axle the commutator that is a split ring divided in two parts S 1 and S 2 a pair of brushes B 1 and B 2 a horse - shoe electromagnet The c..

. A sharp image of the object is focused on the film by adjusting the distance of the lens from the film. There is a focusing ring, which turns over a scale engraved on the lens. By means of this ring, the distance between the lens and the film can be adjusted by moving the lens forward and backwar..

Introduction - Geometrical figures help us to understand various geometrical concepts. When we prove geometrical propositions by logical reasoning, we draw only a rough figure and we do not need to take accurate measurements but geometrical constructions have to be drawn accurately to the..

Introduction - Geometrical figures help us to understand various geometrical concepts. When we prove geometrical propositions by logical reasoning, we draw only a rough figure and we do not need to take accurate measurements but geometrical constructions have to be drawn accurately to the..

Identify the structure that is constructed using 5 cubes. => Figure 1 or Figure 3 or Figure 2 or Figure 4..

1. Most widely used amorphous solids are inorganic glasses, used as construction material houseware laboratoryware etc. 2. Another important material is rubber used in making tyres. Amorphous silica has been found to be the best material for conver..

For the manufacture of bleaching powder, glass, calcium carbide, soda ash etc. For white washing of buildings. For tanning of leather. As a fertilizer for acidic soil. For softening hard water. In building and construction industry as an important raw material..

A cone made of paper is 24 in. high and has a radius of 7 in. Find the area of the paper needed to construct the cone. [Use π = 3.14.] => 681.38 in. 2 or 703.36 in. 2 or 527.52 in. 2 or 549.5 in. 2..

Low density and strength make it ideal for construction of aircraft, lightweight vehicles, and ladders. An alloy of aluminium called duralumin is often used instead of pure aluminium because of its improved properties. Easy shaping and corrosion resistance make it a good..