The engineers' manual of the Local marine examinations |
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Σελίδα 249
... vacuum is a perfectly void space . Among engineers the term is more properly " partial " vacuum , for a " perfect " vacuum can scarcely exist on the surface of our earth . If it were possible to erect a tube ( having a sectional area of ...
... vacuum is a perfectly void space . Among engineers the term is more properly " partial " vacuum , for a " perfect " vacuum can scarcely exist on the surface of our earth . If it were possible to erect a tube ( having a sectional area of ...
Σελίδα 280
... vacuum to be perfect . In the above example the pressure of the atmosphere is 15 lbs . per square inch , and the steam is admitted into the cylinder at 25 lbs . per square inch above the atmosphere , therefore , the effective pressure ...
... vacuum to be perfect . In the above example the pressure of the atmosphere is 15 lbs . per square inch , and the steam is admitted into the cylinder at 25 lbs . per square inch above the atmosphere , therefore , the effective pressure ...
Σελίδα 287
... vacuum to be perfect . The pressure of the atmosphere is 15 lbs . per square inch , and the steam admitted into the cylinder is 35 lbs . per square inch above the atmosphere , therefore the effective pressure per square inch on the ...
... vacuum to be perfect . The pressure of the atmosphere is 15 lbs . per square inch , and the steam admitted into the cylinder is 35 lbs . per square inch above the atmosphere , therefore the effective pressure per square inch on the ...
Σελίδα 293
... vacuum to be perfect . The pressure of the atmosphere is 15 lbs . and in this example the steam flows from the boiler through the steam pipe into the cylinder with a pressure of 65 lbs . per square inch above the atmosphere ; therefore ...
... vacuum to be perfect . The pressure of the atmosphere is 15 lbs . and in this example the steam flows from the boiler through the steam pipe into the cylinder with a pressure of 65 lbs . per square inch above the atmosphere ; therefore ...
Σελίδα 293
... vacuum to be perfect . The pressure of the atmosphere is 15 lbs . per square inch , and the steam admitted into the cylinder is 35 lbs . per square inch above the atmosphere , therefore the effective pressure per square inch on the ...
... vacuum to be perfect . The pressure of the atmosphere is 15 lbs . per square inch , and the steam admitted into the cylinder is 35 lbs . per square inch above the atmosphere , therefore the effective pressure per square inch on the ...
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The Engineers' Manual of the Local Marine Examinations Thomas Liddell Ainsley Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 42 - An Improper Fraction is one whose numerator is equal to or greater than its denominator ; as, f , -J.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 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...
Σελίδα 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.