Constructive Text-book of Practical Mathematics, Volumen1J. Wiley & sons, Incorporated, 1912 |
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Página 40
... Motor . The efficiency of a motor , Eff , equals its output in horse - power HP 。, divided by its input in horse- power HPi . Formulate this law and compute Eff to two decimal places , when a motor , driven by 5 kilowatts , delivers 6 ...
... Motor . The efficiency of a motor , Eff , equals its output in horse - power HP 。, divided by its input in horse- power HPi . Formulate this law and compute Eff to two decimal places , when a motor , driven by 5 kilowatts , delivers 6 ...
Página 118
... motors , weighing 450 kilos each ; Consumption of benzine , .375 kilogram per horse - power hour ; Capacity of tanks , 60 kilograms benzine . ( 1 ) Determine the dimensions of the framework in feet , ( 2 ) The weight in tons , ( 3 ) ...
... motors , weighing 450 kilos each ; Consumption of benzine , .375 kilogram per horse - power hour ; Capacity of tanks , 60 kilograms benzine . ( 1 ) Determine the dimensions of the framework in feet , ( 2 ) The weight in tons , ( 3 ) ...
Página 282
... motor . 2 and 3 are on the same shaft and revolve together , as do 4 and 5 . / 12 " 102 3 14 " 23 Step Cone of Lathe 14 " Motor 10 " FIG . 169 . It is evident that 1 drives 2 , 3 drives 4 , and 5 drives 6. In other words , the odd ...
... motor . 2 and 3 are on the same shaft and revolve together , as do 4 and 5 . / 12 " 102 3 14 " 23 Step Cone of Lathe 14 " Motor 10 " FIG . 169 . It is evident that 1 drives 2 , 3 drives 4 , and 5 drives 6. In other words , the odd ...
Página 307
... motor - boat which covers 45 miles in 2 hours has made the distance at 221 miles per hour . The rate of a belt which moves at a velocity of 50 feet in a second , is 3000 feet per minute . The rim of a 9 - inch pulley making 140 r.p.m. ...
... motor - boat which covers 45 miles in 2 hours has made the distance at 221 miles per hour . The rate of a belt which moves at a velocity of 50 feet in a second , is 3000 feet per minute . The rim of a 9 - inch pulley making 140 r.p.m. ...
Página 323
... motor can be determined only under test by a Prony brake or other similar device . From the nature of the fuels used , the pressure against the piston is difficult to measure and therefore the horse - power , which by definition is ...
... motor can be determined only under test by a Prony brake or other similar device . From the nature of the fuels used , the pressure against the piston is difficult to measure and therefore the horse - power , which by definition is ...
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Términos y frases comunes
10-thousandths acute angle amperes apothem avoirdupois belt boiler circumference Compute and fill Compute the horse-power Compute the number Compute the weight cosine cubic foot cubic inches cylinder decimal places decimal point denotes depth determined dimensions distance divided division divisor Draw effective pull engine equals equation exponent feet per minute following table formula Formulate and compute fraction frustum gallons graduation hypotenuse inches in diameter integral figures kilowatts lathe leadscrew logarithm mantissa Measure meter metric micrometer motor multiplied notation number of revolutions number of threads omitted entries paragraph number piece piston pitch pounds preceding pressure pulley pump radius ratio reading regular polygon revolutions per minute right triangle rule scale screw screw thread SECTION shown side sine slide-rule Solve the following spindle square inch standard thread stroke subtracted tangent thimble threads per inch units velocity vernier voltage volume work-book
Pasajes populares
Página 28 - Divide as in whole numbers, and point off" as many decimal places in the quotient as the number of decimal places in the dividend exceeds the number in the divisor.
Página 448 - In a triangle, the square of any side is equal to the sum of the squares of the other two sides minus...
Página 208 - How many cubic yards of earth must be .removed in digging a cellar 36 ft.
Página 401 - The characteristic of the logarithm of a number greater than unity, is one less than the number of integral figures in the given number.
Página 28 - If the number of decimal places in the dividend is less than the number in the divisor, annex ciphers to the dividend till there are as many or more decimal places as in the divisor.
Página 177 - Add together the first ordinate, the last ordinate, twice, the sum of the other odd ordinates, and four times the sum of the even ordinates. Multiply this sum by the extreme length of the diagram, and divide the FIG.
Página 383 - Hence the characteristic is n — 1 ; that is, the characteristic of the logarithm of a number greater than unity is less by one than the number of digits in its integral part, and is positive.
Página 57 - J, is called reducing the fraction to its lowest terms. A fraction is said to be in its lowest terms when no number greater than 1 will divide its numerator and denominator without a remainder.
Página 389 - The logarithm of the quotient of two positive numbers is found by subtracting the logarithm of the divisor from the logarithm of the dividend. (6) The logarithm of a power of a positive number is found by multiplying the logarithm of the number by the exponent of the power. For, N" = (oT)
Página 225 - Specific Gravity. The specific gravity of a substance is the ratio of the weight of the substance to the weight of the same volume of...