The engineers' manual of the Local marine examinations |
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Page 126
... coal at 1s . 2d . per cwt . , & c . NOTE . It is evident that all the results obtained by Practice may also be found by Compound Multiplication , but the former rule has the advantage of arriving at these results by shorter methods ...
... coal at 1s . 2d . per cwt . , & c . NOTE . It is evident that all the results obtained by Practice may also be found by Compound Multiplication , but the former rule has the advantage of arriving at these results by shorter methods ...
Page 141
... coal : the price of another quantity , as the first quantity : the second quantity . Ex . Price of 14 tons : price of 18 tons 14 tons : 18 tons . Ex . If 8 men earn 568. , how much will 48 men earn ? It is here supposed that the money ...
... coal : the price of another quantity , as the first quantity : the second quantity . Ex . Price of 14 tons : price of 18 tons 14 tons : 18 tons . Ex . If 8 men earn 568. , how much will 48 men earn ? It is here supposed that the money ...
Page 147
... coal cost £ 6 4s . 6d . , how much coal may be had for £ 4 16s . ? For ( 6 48. 6d . , i.e. , for ) 249 sixpences we can purchase ( 4 tons 3 cwt . , i.e. , ) 83 cwt . of coal , Therefore for I sixpence we can purchase cwt . of coal , 83 ...
... coal cost £ 6 4s . 6d . , how much coal may be had for £ 4 16s . ? For ( 6 48. 6d . , i.e. , for ) 249 sixpences we can purchase ( 4 tons 3 cwt . , i.e. , ) 83 cwt . of coal , Therefore for I sixpence we can purchase cwt . of coal , 83 ...
Page 148
... coal in 1 days : how long will 98 tons last ? ord , and 98 tons is 7 Method of Unity : 13 tons in 14d , or d , is 1 ton in 98 × 4 × 13 = 13 , or 13d 5h nearly . 13 : 98 : 1 days required . 98 × 175 = = 13 ° 2 . 13 By Ratio : Here 14 ...
... coal in 1 days : how long will 98 tons last ? ord , and 98 tons is 7 Method of Unity : 13 tons in 14d , or d , is 1 ton in 98 × 4 × 13 = 13 , or 13d 5h nearly . 13 : 98 : 1 days required . 98 × 175 = = 13 ° 2 . 13 By Ratio : Here 14 ...
Page 149
... coal is £ 41 178. , what will 72 tons cost ? 2 . If a score of sheep cost £ 43 , what would be the price of a flock of 3580 sheep ? 3. What would be the price of 7632 articles at 34d . for every 144 of them ? 4 . If 2 cwt . 3 qrs . 14 ...
... coal is £ 41 178. , what will 72 tons cost ? 2 . If a score of sheep cost £ 43 , what would be the price of a flock of 3580 sheep ? 3. What would be the price of 7632 articles at 34d . for every 144 of them ? 4 . If 2 cwt . 3 qrs . 14 ...
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The Engineers' Manual of the Local Marine Examinations Thomas Liddell Ainsley No preview available - 2015 |
Common terms and phrases
air-pump Answer area of valve atmospheric line boiler bolts bottom cent centre circumference coal condenser contains cost crank cubic feet cubic foot cubic inches cyphers decimal denominator diagram distance divide dividend divisor effective pressure engine equal EXAMINATION PAPER-No EXAMPLES FOR PRACTICE exhaust figure fraction gallons heat high pressure horse-power hundred inches diameter inches of mercury indicator indicator diagram length of stroke lever mean effective pressure miles multiplicand multiply piston pitch plates port pounds pressure cylinder pressure of steam pressure per square pump quantity quotient ratio of expansion reduce remainder revolutions per minute rivets RULE safety-valve screw seams shaft side slide-valve specific gravity square feet square inch stays steam is cut subtract surface surface condenser tank temperature thickness thousand throughout the stroke tons total pressure tube vacuum vulgar fraction weight whole numbers
Popular passages
Page 42 - An Improper Fraction is one whose numerator is equal to or greater than its denominator ; as, f , -J.
Page 63 - Thus, reducing the two fractions to a common denominator, we multiply the numerator of the dividend by the denominator of the divisor, and the numerator of. the divisor by the denominator of the dividend ; (Art.
Page 139 - RULE. from half the sum of the three sides, subtract each side separately; multiply the half sum and the three remainders together, and the square root of the product will be the area required.
Page 56 - It is however impossible to find such a fraction unless all the given fractions be first expressed with a common denominator : for, since the denominator of a fraction expresses the number of equal parts into which the unit is divided, it follows that in two fractions which have not a common denominator the unit is not divided into the same number of equal parts : therefore in endeavouring to...
Page 239 - ... stroke have been performed, and the steam be at the same time throttled in the steam pipe, the full pressure of the steam within the cylinder cannot be maintained except near the beginning of the stroke where the piston travels slowly ; for as the speed of the piston increases, the pressure necessarily subsides, until the piston approaches the other end of the cylinder, where the pressure would rise again but that the operation of the lap on the valve by this time has had the effect of closing...
Page 239 - ... on the exhausting side, the port before the piston will be closed before that behind it is opened ; and the interval between the closing of the one and the opening of the other, will depend on the quantity of lap on the exhausting side of the valve.