Shop Mathematics ...: Prepared in the Extension Division of the University of Wisconsin, Τόμος 1McGraw-Hill book Company, Incorporated, 1924 |
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Σελίδα 56
... force is working . If the full force of men is 1300 , then the present force is 50 % of 1300 = .50 X 1300 = 650. If the full force were 700 men , then the 50 % would be 350 . Suppose again a shop has 50 men working , which the foreman ...
... force is working . If the full force of men is 1300 , then the present force is 50 % of 1300 = .50 X 1300 = 650. If the full force were 700 men , then the 50 % would be 350 . Suppose again a shop has 50 men working , which the foreman ...
Σελίδα 59
... force in a shop is increased from 160 to 200 men , what per cent is the capacity of the shop increased ? 200 ÷ 160 = 1.25 1.25 125 % ― = 125 % Explanation : The present force is 1 or 1.25 of the old force , because 200 is 88 of 100 ...
... force in a shop is increased from 160 to 200 men , what per cent is the capacity of the shop increased ? 200 ÷ 160 = 1.25 1.25 125 % ― = 125 % Explanation : The present force is 1 or 1.25 of the old force , because 200 is 88 of 100 ...
Σελίδα 83
... force one tooth along on the other one . Conse- quently , the product of the number of teeth times the r.p.m. of the second gear will be the same as for the first gear . This gives us our rule for the relation of the speeds and numbers ...
... force one tooth along on the other one . Conse- quently , the product of the number of teeth times the r.p.m. of the second gear will be the same as for the first gear . This gives us our rule for the relation of the speeds and numbers ...
Σελίδα 141
... force P applied at one end has toward lifting the weight W at the other end . If F is close to W , a comparatively small force P may be able to raise the weight W , but if F is moved away from W and placed close to P , then a greater force ...
... force P applied at one end has toward lifting the weight W at the other end . If F is close to W , a comparatively small force P may be able to raise the weight W , but if F is moved away from W and placed close to P , then a greater force ...
Σελίδα 142
... force P has a moment , which is the product of the force P and the distance from P to the fulcrum F. If the force and the weight just balance each other , their moments are equal . The length from P to F is from W to F , the weight arm ...
... force P has a moment , which is the product of the force P and the distance from P to the fulcrum F. If the force and the weight just balance each other , their moments are equal . The length from P to F is from W to F , the weight arm ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
amount Answer Antilog belt block boiler bolt brake horsepower calculated castings Centigrade cents ciphers circle circumference common denominator common fraction cube root cubic cutting speed cylinder decimal places decimal point diameter dimensions dimes distance divide dividend division dollar efficiency emery wheel equal Example Explanation Fahrenheit feet final divisor foot-pounds force arm formula given gives heat hoist horsepower improper fraction inclined plane indicated jackscrew lathe lead screw length lever lifted line shaft load logarithmic scale machine mantissa measure mechanical advantage minute mixed numbers multiply number of teeth operation piece piston pound pressure PROBLEMS pulley pump quotient raised reduced revolutions per minute rope shaft shown in Fig slide rule square inch square root steam engine steel stress stroke subtract surface speed temperature threads per inch trial divisor unit volume weight arm whole number width
Δημοφιλή αποσπάσματα
Σελίδα 129 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30j square yards = 1 square rod (sq.
Σελίδα 8 - TIME 60 seconds (sec.) = 1 minute (min.) 60 minutes =1 hour (hr.) 24...
Σελίδα 163 - Fig. 49. We will solve this problem partly graphically and partly by calculation. The first step is to find how fast the crank pin D is moving. For one turn of the crank, D travels through a distance equal to the circumference of a circle whose radius is R, that is, a distance of 2'ffTi.
Σελίδα 3 - An Improper Fraction is one whose numerator is equal to, or greater than, the denominator; as, f, f.
Σελίδα 41 - To divide by 10, move the decimal point one place to the left. To divide by 100, move the decimal. point two places to the left, and so on for other powers of 10.
Σελίδα 5 - When the numerator is less than the denominator, the value of the fraction is less than 1. 5th. When the numerator is equal to the denominator, the value of the fraction is equal to 1. 6th. When the numerator is greater than the denominator, the value of the fraction is greater than 1.
Σελίδα 76 - In any proportion, the product of the means is equal to the product of the extremes.
Σελίδα 41 - To multiply by 10, move the decimal point one place to the right, annexing a zero if necessary.
Σελίδα 2 - Definition of a Fraction. — A Fraction is one or more of the equal parts into which anything may be divided.