Concept explainers
Solve for the unknown value in each of the following proportions and check. Round the answers to 3 decimal places where necessary.
a.
b.
c.
d.
e.
f.
g.
h.
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Mathematics For Machine Technology
- The length, L, of the point on any standard 82° included angle drill can be calculated using the formula L = 0.575 , where represents the diameter of the drill. Determine the lengths of the following drill points with the given diameters. Round to 3 decimal places for inches and 1 decimal place for millimeters. a. 12 b. 14 c. 38 d. 10 mm e. 25 mm f. 45 mmarrow_forwardHow much stock per stroke is removed by the wheel of a surface grinder if a depth of 4.725 millimeters is reached after 75 strokes? Round the answer to 3 decimal places.arrow_forwardAnalyze each of the following problems to determine whether the problem is a direct or inverse proportion and solve. Round the answers to 3 decimal places where necessary. a. A reamer tapers 0.0975 inch along a 3.2625-inch length. What is the amount of taper along a 2.1250-inch length? b. A machine produces 2550 parts in 8.5 hours. How many parts are produced by the machine in 10 hours? c. Of two gears that mesh, one gear with 12 teeth revolves at 420 rpm. What is the revolutions per minute of the other gear, which has 16 teeth?arrow_forward
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