1-23 The plan that has been corrected to illustrate the final ship and system  arrangement,  fabrication, and installation. 1-24. What  publication  contains  the letters to be used to designate the size of a blueprint? 1-25. 1.    Naval Ships'   Technical  Manual 2.    ANSI 27.2Y 3. MIL-STD  100 4.    Consolidated  Index  of  Drawing In  the  current  blueprint  numbering plan,   the  activity  that  designed the object to be built is identified in which of the following  positions? 1. Federal Supply Code Identification  Number 2.    System Command Number, Part 1 3. 4. System Command Number, Part 2 Revision  Letter 1-26. 1. E 2. F 3. G 4. H plan What is the major difference in the old  and  new  shipboard  numbering systems? 1-27. 1. The  federal  supply  code identification  number 2. The  serial  and  file  number 3. The  Naval  Facilities Engineering  Code  Identification number 4. The group numbers in block two Which of the following is a necessary  practice  in  caring  for blueprints? 1. Make  all  corrections  in  ink 2. Allow them to dry out completely  before  restoring them 3. Properly  fold  and  file  them 4. Be sure all erasures are complete 1-28. When a plan is revised, what is the disposition of the old plan? 1. It is retained in a special file 2. It is attached to the back of the new copy 3. It is removed and sent to Naval Archives 4. It  is  removed  and  destroyed when  replaced  by  the  revised 1-29. On  most  ships,  personnel  in  which of  the  following  areas  maintain  the ship plans? 1. Engineering   logroom 2. Ship's  library 3. Repair  division 4. Supply  department 1-30. Which  of  the  following  codes identifies  the  harder  grade  of pencil  lead? 1. 9H 2. 5H 3. 2H 4. 6B 1-31. When using needle-in-tube pens,  you produce different line widths by what means? 1.    Bear down firmly on the pen head 2. 3. Change the needle points Draw double lines 4.    Hold the pen at 90° to the drawing  surface 1-32. What instrument is used to produce irregular  curves? 1. A  protractor 2. 3. Multiple  combination  triangles A set of French curves 4.    An  adjustable  triangle A. B. C. D. E. F. G. H. I. J. K. L. M. and  dimension lane Visible Hidden Symmetry Extension Cutting  p Section Viewing Phantom Leader Center Break Stitch Chain Figure 1C IN ANSWERING QUESTIONS l-33 THROUGH 1-43, SELECT FROM FIGURE 1C THE TYPE OF LINE DESCRIBED IN THE QUESTION. 1-33. Lines used to indicate the part of a drawing to which a note refers. 1. B 2. C 3. I 4. J 3