Practical Geometry & Graphics: A Text-book for Students in Technical and Trade Schools, Evening Classes, and for Engineers, Artisans, Draughtsmen, Architects, Builders, Surveyors, &cB. T. Batsford, 1912 - 621 σελίδες |
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Σελίδα 58
... heights which are found inconvenient to measure directly .. Ex . We wish to know the height of a church tower , or a cliff , or hill , etc. Measure a distance AB , Fig . 61 , say 300 ft . from the C 43 A FIG . 61 . 43.0 B foot of the ...
... heights which are found inconvenient to measure directly .. Ex . We wish to know the height of a church tower , or a cliff , or hill , etc. Measure a distance AB , Fig . 61 , say 300 ft . from the C 43 A FIG . 61 . 43.0 B foot of the ...
Σελίδα 59
... height of tower = ( AC + 5.25 ) ft . = = 279-755-25 ft . 285 ft . high . = 68. Each trigonometrical ratio is a measure of one side of a right - angled triangle in terms of another side , and all these ratios are interdependent , their ...
... height of tower = ( AC + 5.25 ) ft . = = 279-755-25 ft . 285 ft . high . = 68. Each trigonometrical ratio is a measure of one side of a right - angled triangle in terms of another side , and all these ratios are interdependent , their ...
Σελίδα 80
... height or altitude . Thus , in Fig . 79 , Ch is the height of each of the triangles on the base AB . If A denotes the angle between a side AC and the base line AB , we have- Height Ch = AC × sin . A. 82. A triangle having one side ...
... height or altitude . Thus , in Fig . 79 , Ch is the height of each of the triangles on the base AB . If A denotes the angle between a side AC and the base line AB , we have- Height Ch = AC × sin . A. 82. A triangle having one side ...
Σελίδα 85
... height of the ridge above the level of supporting walls are given by figures ; the slope of the end portion is given in degrees . Determine ( a ) the length of the common rafters for the main roof and the bevels to which they must be ...
... height of the ridge above the level of supporting walls are given by figures ; the slope of the end portion is given in degrees . Determine ( a ) the length of the common rafters for the main roof and the bevels to which they must be ...
Σελίδα 86
... height of a wall is 20 ft .; required the length of a ladder which will reach to the top , when the foot of the ladder is 5 ft . from the wall . Draw a figure and measure the ladder and its inclination to the ground . Answer . 20.6 ft ...
... height of a wall is 20 ft .; required the length of a ladder which will reach to the top , when the foot of the ladder is 5 ft . from the wall . Draw a figure and measure the ladder and its inclination to the ground . Answer . 20.6 ft ...
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Practical Geometry & Graphics: A Text-Book for Students in Technical and ... Edward L Bates,Frederick Charlesworth Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Practical Geometry and Graphics: A Text-Book for Students in Technical and ... Edward L. Bates Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Practical Geometry and Graphics: A Text-Book for Students in Technical and ... Edward L. Bates Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD axes axis bisector bisects called centimetres chord circle centre circular arc circumference cone construction corresponding crank curve cylinder describe a circle describe an arc determine diagonal diagram diameter dihedral angle direction distance divided Draw drawn edge ellipse equal equation figure fixed point force frustrum geometrical given angle given line given point graph graphically height hence horizontal hyperbola hypotenuse inch intersect Join joint latus rectum load locus magnitude measure meeting miles per hour obtain parabola parallel parallelogram perpendicular plan and elevation plane VTH planes of projection Plot polygon position prism Problem projector protractor Rabat radians radius ratio rectangle represent rhombus rotation scale semi-major axis set-square side sphere square straight line surface T-square tangent trace triangle ABC true shape vector velocity vertical plane
Δημοφιλή αποσπάσματα
Σελίδα 621 - Mr. Mitchell's two books form unquestionably the best guide to all the mechanical part of architecture which any student can obtain at the present moment. In fact, so far as it is possible for any one to compile a satisfactory treatise on building construction, Mr. Mitchell has performed the task as well as it can be performed.
Σελίδα 1 - A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center.
Σελίδα 61 - Radian is the angle subtended, at the centre of a circle, by an arc equal in length to the radius...
Σελίδα 605 - Gallon = -1604 cubic foot = 10 Ib. of water at 62° F. 1 Knot = 6080 feet per hour. Weight of 1 Ib. in London = 445,000 dynes. One pound avoirdupois = 7000 grains = 453-6 grammes. 1 Cubic foot of water weighs 62'3 Ib. 1 Cubic foot of air at 0° C. and 1 atmosphere, weighs -0807 Ib. 1 Cubic foot of Hydrogen at 0° C. and 1 atmosphere, weighs '00559 Ib. 1 Foot-pound =1-3562 x 10
Σελίδα 621 - BUILDING CONSTRUCTION AND DRAWING. A Text-book on the Principles and Details of Modern Construction, for the use of Students and Practical Men. By CHARLES F. MITCHELL, Lecturer on Building Construction at the Polytechnic Institute, London, assisted by GEORGE A. MITCHELL.
Σελίδα 345 - If any number of forces acting at a point can be represented in magnitude and direction by the sides of a POLYGON taken in order, they are in equilibrium.
Σελίδα 2 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.