198 Print Reading for Industry Copyright Goodheart-Willcox Co., Inc. Print AP-018 21. One of the dimensions on this part has a double arrow and no extension line at one end. What feature, which is not shown, is the double arrow indicating? ________________________________________________________________________________________ 22. In the top view of this assembly, the hole surface specified for datum E also has an inch value in parentheses and a metric value in parentheses and brackets. What do the parentheses indicate? ________________________________________________________________________________________ 23. This print features dual dimensioning. What is the significance of the comma within the bracketed values? ________________________________________________________________________________________ Print AP-019 24. What diameter is specified for the circle of centers (bolt circle)? ______________________________ 25. Does this print feature unidirectional or aligned dimensioning? ______________________________ Print AP-021 26. One leader line on this print does not feature an arrowhead. Why? ___________________________ ________________________________________________________________________________________ 27. How many dimensions of this print are specifying an angular measurement? ________________________________________________________________________________________ Print AP-023 28. How many holes on this print have a diameter of .125″? ____________________________________ 29. Examine the holes marked A on this print. Left to right, are the three holes along the top edge lined up with the three holes along the bottom edge? ________________________________________________________________________________________ 30. This one-view drawing does not show the depth in a side view. What is the depth? ________________________________________________________________________________________ Print AP-024 31. One dimension indicates a distance of .300 TYP. What does TYP stand for? ________________________________________________________________________________________ __________________ 32. For some holes, this print also implements a type of location dimensioning known as _____. Print AP-025 33. What letters are used to specify the datums on this print? ___________________________________ 34. What method is used to specify the diameters of the holes? _________________________________