The engineers' manual of the Local marine examinations |
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Page 145
... distance . 20 20 -- 49 13 594 །། ྨ * ། 1930 2376 7722 .. required distance = 3861 1722 × 198 = miles . 2876 1188 6 = 643 miles = 643 miles . Ex . 9. If 12 tons cost £ 3 158. , what will 5 cwt . cost ? Instead of reducing each of the ...
... distance . 20 20 -- 49 13 594 །། ྨ * ། 1930 2376 7722 .. required distance = 3861 1722 × 198 = miles . 2876 1188 6 = 643 miles = 643 miles . Ex . 9. If 12 tons cost £ 3 158. , what will 5 cwt . cost ? Instead of reducing each of the ...
Page 146
... distance ? The 84 miles may evidently be left out of consideration , since the distance in both cases is the same . Proceeding then according to our rule- 5 cwt . 7 lbs . 21 cwt . I qr . 14 lbs . :: £ 3 18s . 4d . : required cost ...
... distance ? The 84 miles may evidently be left out of consideration , since the distance in both cases is the same . Proceeding then according to our rule- 5 cwt . 7 lbs . 21 cwt . I qr . 14 lbs . :: £ 3 18s . 4d . : required cost ...
Page 150
... distance to be 160 English miles ? 24. An acre of coals 2 feet thick yields 3000 tons , and one 5 feet thick 8000 ; how many acres of 5 feet thick would give the same quantity as 48 of 2 feet thick ? 25. One piece of silk a mile long ...
... distance to be 160 English miles ? 24. An acre of coals 2 feet thick yields 3000 tons , and one 5 feet thick 8000 ; how many acres of 5 feet thick would give the same quantity as 48 of 2 feet thick ? 25. One piece of silk a mile long ...
Page 164
... distance sailed as found from the pitch and revolutions of the propeller is 46 miles , but the actual distance sailed as found by the chart is 44 miles : required the slip of the screw per cent . ? Distance from engines 46 46 miles ...
... distance sailed as found from the pitch and revolutions of the propeller is 46 miles , but the actual distance sailed as found by the chart is 44 miles : required the slip of the screw per cent . ? Distance from engines 46 46 miles ...
Page 181
... distance , the product will obviously be greater than the area of the trapezoid , while if we multiply the perpendicular distance by the shorter side AB the product will be too little ; hence we find a side of mean or average length by ...
... distance , the product will obviously be greater than the area of the trapezoid , while if we multiply the perpendicular distance by the shorter side AB the product will be too little ; hence we find a side of mean or average length by ...
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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.