Colliery Surveying: A Primer Designed for the Use of Students and Colliery Manager AspirantsMacmillan, 1896 - 163 σελίδες |
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Σελίδα 4
... inch in thickness , and is provided with end pieces to prevent warp- ing . Its surface should be perfectly flat and smooth , and its sides " square off . " The paper upon which the drawing is to be made is tightly stretched on the board ...
... inch in thickness , and is provided with end pieces to prevent warp- ing . Its surface should be perfectly flat and smooth , and its sides " square off . " The paper upon which the drawing is to be made is tightly stretched on the board ...
Σελίδα 21
... inch ; thus Fig . 56 would be known as a 20 scale , because AB is half an inch , and consists of 10 small divisions . It may , however , be called a half - inch scale or a 200 scale . CHAPTER IV MENSURATION Surfaces PROB . I. To find ...
... inch ; thus Fig . 56 would be known as a 20 scale , because AB is half an inch , and consists of 10 small divisions . It may , however , be called a half - inch scale or a 200 scale . CHAPTER IV MENSURATION Surfaces PROB . I. To find ...
Σελίδα 22
... inches long , and 3 feet 8 inches broad ? 105 × 38 125 44 1375 X 12 12 36 = 38 sq . feet 28 sq . inches . = ( This proposition also includes the finding of the area of a square , for a square is a rectangle with its sides equal ...
... inches long , and 3 feet 8 inches broad ? 105 × 38 125 44 1375 X 12 12 36 = 38 sq . feet 28 sq . inches . = ( This proposition also includes the finding of the area of a square , for a square is a rectangle with its sides equal ...
Σελίδα 27
... inches diameter ( outside ) , 1 inch thick , and 12 inches long ? 12 10 12 10 22 × 2 × 785434.5576 sq . inches , area of ring . Volume 34.5576 × 120 = 4146.912 cubic inches . - PROB . XVII . To find the solidity of a prism . Multiply ...
... inches diameter ( outside ) , 1 inch thick , and 12 inches long ? 12 10 12 10 22 × 2 × 785434.5576 sq . inches , area of ring . Volume 34.5576 × 120 = 4146.912 cubic inches . - PROB . XVII . To find the solidity of a prism . Multiply ...
Σελίδα 28
... inch is in the majority of cases adopted for English measurements , but in nearly all surveying measurements a ... inches in length , and 100 of these , which go to form a chain , will be 22 yards , or 66 feet in length . The reason for ...
... inch is in the majority of cases adopted for English measurements , but in nearly all surveying measurements a ... inches in length , and 100 of these , which go to form a chain , will be 22 yards , or 66 feet in length . The reason for ...
Άλλες εκδόσεις - Προβολή όλων
Colliery Surveying: A Primer Designed for the Use of Students and Colliery ... Thomas Aloysius O'Donahue Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Colliery Surveying: A Primer Designed for the Use of Students and Colliery ... Thomas Aloysius O'Donahue Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Colliery Surveying: A Primer Designed for the Use of Students and Colliery ... Thomas Aloysius O'Donahue Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Συχνά εμφανιζόμενοι όροι και φράσεις
accuracy acres ascertain back-sight base line bearing is taken calculated centre chain line clinometer colliery column commences correct bearing datum line deducted dial is clamped diameter direction distance dumpy level end of line equal example feet figure find the area fore-sight height horizontal inch inclination instrument isogonic lines legs length limb line drawn line of sight Link Chain loose needle bearing magnetic bearing magnetic declination magnetic meridian magnetic needle mark measurements meridian angle meridian line method Multiply necessary north and south north end number of degrees offsets ordinary parallel parallel ruler perpendicular placed plotted pricker PROB protractor reduced level right angles road ruler screw seam shaft shown by Fig side sight line spirit level square staff station straight line surveyor taking telescope theodolite triangle true north underground survey vane vernier plate vernier reading vertical angles Walney Island yards zero
Δημοφιλή αποσπάσματα
Σελίδα 20 - To draw a straight line at right angles to a given straight line, from a given point in the same.
Σελίδα 111 - Triangles on the same base, and between the same parallels, are equal.
Σελίδα 17 - Any two sides of a triangle are together greater than the third side.
Σελίδα 10 - A plane superficies is that in which any two points being taken, the straight line between them lies wholly in that superficies.
Σελίδα 14 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 17 - When the three angles of one are equal to the three angles of the other, each to each, the adjoining diagram shews that the triangles need not be equal in all respects.
Σελίδα 24 - RULE. — Multiply half the sum of the two parallel sides by the perpendicular distance between them, and the product will be the area.
Σελίδα 13 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Σελίδα 20 - ... are together greater than the. third. Let A, B, C be the three given lines, any two of which are together greater than the third.
Σελίδα 19 - To bisect a given finite straight line, that is, to divide it into two equal parts. Let AB be the given straight line; it is required to divide it into two equal parts.