7BOBO-dHHHHHH-߸H-߼-*4 -  -Z`+-I.g.h.*%.g.h.%.h.h.L%.h.h.xHH(FG(HH(d'@.$nd/ChaF Find AgainElD/F AI>-D-@awing3 cessing% readsheet4DatabaCQ -CF.x9v ationer -!(}DSET40_8OM-ߤ-߬-ߨy-v_y-vy-v+y-v y-v y-vy-vy-vy-vy-vy-vy-vy-vy,m#py-v&[y-v*y-v,ty-v/Yy-v1y-v4y--v8y-@Fx012I !"#WXYZ[\]^_DEFGHIJhijklmnopqr"#$%stuvwxyz{|}~uC      !"#$%&'()*+     LMN L M N O P                                 " # $ % &        = > ?   " #     qrstuhijklmnoT=>?@Atuvwxjklmnopq`abc        @ABCDEFGnopqrGHIJKLMN{|}~KLMNOP  !#!$!%!&!'!!!" " " """""""#6#d#e#f#g#h#i#j#k#l#m#n#o#p$g$h$i$j$k$l$m$$$$$$$$$$$%%%%%%&L&M&N&O&P&Q&R&S&T&U&V&W&X&Y&Z&[''''''''''''''''''''''''(e(r(((()-).)g)h*4*++++++++++++++++++++++,,,,, ,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t--- -!-O-P-Q-R-S-T.. . . . . ....../J/K/L/M/N/O/P/Q/R/S/T/U/V/W/X/Y0708090:0;0<0g0h0i0j0k0l0m0n00000000001Q1R1S1T11111111111112122232425262728292Y2Z2[2\2]2^2_2`222223~33333333333333444444[4\4]4^4_4`4a4b4c4d4e4f4444444444444557f7g888~88888   D J N Q              N R    : =            ?  N z    !" ! ! " " " " # # #! #9 #d $m $ ' ' ' ' )- ). +F +I + + + + -! -N /C /G 0< 0f 29 4f 4 5 5 7f +-ߠ+-ߜ:-ߘ-ߔ -ߐ-ߌ-߈C-߄-߀-|!?-x#-t&-p*{-l.]*-h1>-d4-`+ UNIT 10: WORKING WITH SCALE DRAWINGS ODD QUESTIONS 1-39 1. The illustration below shows a recommended setup for a 24-foot extension ladder. (A 24-foot ladder is a ladder with each extension measuring 12 feet.) Place ladder drawing, page 30, here. a. Measure the size of one section of the ladder. What is the scale of the drawing? b. Measure the indicated overall length of the ladder. Using your scale, what is the actual overall length? c. Similarly, what is the actual standing height, as shown in the illustration? 3. Reading directions from a map is very important to delivery personnel. In turn, providing the proper directions to such personnel is important. Below is a section of a map showing major highways out of Muddy River City. Place map, page 31, here. a. What compass direction is Beaver Falls from Muddy River City? b. What direction is Clearwater from Muddy River City? c. What city is directly east of Swampytown? d. About how far would you drive to travel from Clearwater to Beaver Falls? 5. You have made a purchase to be delivered to your house. You decide to make a quick sketch of how to get to your house. Make a scale drawing of the instructions that follow, being sure to provide the necessary labels and compass rose. The store is situated on the east side of Highway 22. The delivery truck needs to travel north on Highway 22 (runs north-south) for 4 miles, then turn east on Old Smith Road (runs east-west). Travel east for 11/2 miles until the cross street, Dewey Drive (runs north- south). Make a right turn on Dewey Drive, drive 1/4 mile, and the house should be labeled on the left at 4818 Dewey Drive. 7. You work at a nursery where customers frequently ask for advice on home vegetable gardening. A reference book shows a sample layout for a small garden, shown below. Place drawing, page 34, here. a. What is the size of the garden shown in the drawing? b. What is the scale of the drawing? In other words, the width of 1 small square equals what unit of measure in the garden?  c. Based on the drawing, how far apart should your customer plant the row of squash from the row of peppers? d. How far apart is each head of cabbage planted, as shown in the drawing? 9. An aerial photograph of an area of rangeland only sparsely populated with trees is shown (simulated) below. You are told that the field of view in the photo is 2.25 miles across. The trees are visible as dark dots. Place simulation, page 35, here. a. Measure the width across the photo above, and determine the scale of the drawing. b. Measure the height from top to bottom of the photo, and determine the actual distance in the photo. c. How many square miles are pictured? d. Count the number of trees visible in the photo. What is the average number of trees visible per square mile? e. At this scale, how wide should a 60-foot wide tree appear? 11. The architect has provided you with a small model of the new factory site for your company. A small label informs you that the model is scaled 1/4 = 10. a. The main office building appears about 6 long of the model. How long does this indicate the actual building will be? b. You have seen other models decorated with little figures that represent people. How tall would model people (representing 6 people) have to be in this model to be to scale? c. Is this a scaled-up model or scaled-down model? What are you looking for? What do you need to answer the question? Write out the methods that you will use to solve the problem and show your work in calculating the answer(s). Your answer(s) are (make sure the units used are correct): 13. Your artists are designing a billboard advertisement for your company. The artwork is shown to you on a large 17 x 22 piece of drafting paper that has 1/2 margins (top and bottom, left and right). It displays your company logo, measuring 14 tall, at the right side. The billboard you have leased is 21 feet 4 inches high and 28 feet long a. Is the relative size of the height and width of the drawing the same as the billboard? If not, is it taller or wider than the billboard? b. Assuming that the entire width of the drawing will fit onto the billboard, what is the scale of the artwork done by your artists? c. Is this a scaled-up or a scaled-down drawing? d. How tall will your company logo be on the billboard? What are you looking for? What do you need to answer the question? Write out the methods that you will use to solve the problem and show your work in calculating the answer(s). Your answer(s) are (make sure the units used are correct): 15. You are designing a page layout for a sales brochure for your company. The brochure will be printed sideways (i.e., landscape) on 8 1/2 x 11 paper. It will be folded twice so that the paper is divided into three sections. Each of the three sections of the paper must have a 1/2 margin on all sides. a. Using a full page of 8 1/2 x 11 paper, draw boxes to show where the text is permitted on each section. b. What is the scale of this drawing? Please use the next sheet for your drawing. 15. continued. 17. As an insurance adjuster you may be called upon to interpret a police accident report. Part of a report will be the scale drawing of the scenCe of the accident, usually drawn by the investigating officer. Such a drawing is shown below. Place accident drawing, page 39, here. a. What is the scale of the drawing? b. Approximately how wide are the streets at this intersection? c. How long does the drawing indicate the skid marks to be? 19. Your franchise of U-Save-A-Lot grocery store is being compared to similar stores across the state. One of the comparisons is based on the ratio of weekly gross sales per square meter of selling space. Your store averaged $129,000 per week in gross sales last year. A simple floor plan of your store is shown below, showing the selling space, storage space, and office space on your property. Place floor plan, page 41, here. a. What is the scale of the drawing of the store? b. Measure the size of the selling space and determine the amount (square feet) of selling space. c. Compute the ratio of gross sales last year to the square footage of selling space. 21. Photographs taken with a microscope are often labeled with a scale, as shown below. Place photo, page 42, here. a. Locate and measure the scale on the illustration. What is the scale of the illustration? b. Using your scale, determine the length and width of the main body of the bacteria. c. What is the magnification of the illustration? 23. When interviewing a patient, you may choose to make a sketch to record the observations. Suppose a patient has a hand that is the same size as yours, and has a deep 1-inch long cut on the palm of the right hand. Using the drawing below, perform the steps that follow to create a scale drawing of this patients cut hand. Place hand drawing, page 44, here. a. Measure the length of your middle finger, and the length of the middle finger in the drawing. Record the measurements, then label the drawing with a scale. b. Is this a scaled-up or a scaled-down drawing? c. Make a dark line horizontally across the palm of the drawn hand that will represent th 1-inch cut on your patients hand. Be sure that it is to scale. 25. An electrocardiogram (ECG) is a record of the hearts electrical impulses. The printed output from the procedure serves as a record of the hearts activity. As the paper moves at a constant speed, the trace is recorded as a wave, as shown below. The distance between each square is equivalent to 0.20 seconds. Place ECG wave, page 45, here. a. Express the horizontal scale of the ECG output as a ratio of squares to time (in seconds). ? b. Express the horizontal scale of the ECG output as the width (in centimeters) of a square to time (in seconds). c. Measure the distance between two peaks (the time for one heartbeat), and express this distance as time (in seconds). d. Set up a proportion as shown below, and solve for the unknown heartbeats per minute. 1 heartbeat = Unknown heartbeats Time for one heartbeat 60 seconds 27. A city ordinance specifies that no person shall be more than 75 feet walking distance from a fire extinguisher. A floor plan for the partitioned office areas in your office building is shown below, along with fire extinguisher locations. Place floor plan, page 46, here. a. Given the length of the building, as labeled, what is the scale of the drawing? b. Identify and measure the distance between each rooms doorway and the closest extinguisher. Convert your measurements to the actual distances. c. Is your building in compliance with the city ordinance mentioned above? If not, indicate which rooms are not in compliance, and how you might remedy the violation. 29. You are planning on opening an after-school child-care center at the corner of Preston Road and Royal Lane (see center of map below). You are preparing an advertising brochure that will state how far you are located from several nearby elementary schools. A map of the area is shown below, with the schools depicted by solid black circles. Place map, page 47, here. a. Identify the scale of the map. Locate the site for your center, and the following schools on the map: 1) Kramer 2) Dealey 3) Preston Hollow 4) Pershing b. Measure the distance as the crow flies (i.e., straight-line distance) from your center to each of the schools listed above. c. Convert the measured distances to actual distances. d. Write a statement to be included in your advertisement that states something like, The child-care center is located within ____________miles of four neighborhood elementary schools. e. Why are these distances not truly representative of the actual distances to the schools? 31. An aerial photograph shows a proposed industrial site between two parallel highways, Highway 37 and Highway 39, as shown below. It is known that the highways run 3 3/4 miles apart. Running between the highways are Meander River on one end, and Highway 48 on the other. Place photo, page 49, here. a. What is the approximate scale of the photograph? b. What is the narrowest distance between the river and Highway 48? 33. Examine the incomplete scale drawing of a bolt, shown below. Nothice that it has only one dimension labeled, and that it shows both a side view and an end view. Place bolt drawing, page 50, here. a. Measure the dimension that is labeled with your ruler. How many inches are used to represent 2 in this drawing? How many inches would be used to represent 1? b. With this scale, about how thick is the head of this bolt? (Express your * answer in inches, rounded to the nearest 0.1.) c. What size wrench would be needed to fit the head of this bolt, as shown in the end view? Convert your answer to fractional form, reported to the nearest 1/64. 35. Illustrations in catalogs will frequently display some common object alongside to provide a reference. This becomes a key to the scale. Such a photograph is shown below, showing the size of a BNC male connector. Place photo, page 51, here. a. What is the actual size of the reference in the illustration above? b. What is the scale of the illustration? c. What do you think is the actual diameter of the end of the connector in the photograph? d. How close do you think your answer to Part c i>s to the real diameter of the connector? Why are measurements such as this subject to error? 37. The plans for an A-frame greenhouse are shown below. Place plans, page 53, here. a. Measure the width of the base of the greenhouse. Use this measurement and the labeled actual width to arrive at a scale for this drawing. b. What is the actual length of the rafters (the sides of the A-frame) needed to construct the building from these plans? c. What are the dimensions of Gusset A? How accurate do you think this measurement is? Explain. 39. You are looking over a contour map of Country Estate (shown below) for a client. Place map, page 54, here. a. Locate the scale of the map. Approximately how many square feet does the map area cover? b. A noticeable feature of the map is a river flowing through the middle of the estate. Is the natural boundary provided by the river lined essentially north- south, or east-west? c. Notice the contour lines that indicate altitude above sea level of the land. If you walked along a line labeled 570, you would remain at 570 feet above sea level. Correspondingly, if you walked from a line marked 570 to one marked 560, you would be walking essentially downhill. With this understanding, does the river flow from top to bottom of the map, or from bottom to top? d. Look at the highway crossing the middle of the map. How far would you have to drive to drop from 590 feet above sea level to 550 feet above sea level? e. What is the ratio of the change in altitude to the distance driven along this stretch of road? DSET|(H-\>"9 *6*>"9DSET(H-X9>96*=9DSETR -L-T-P   -HUnit 10 Odd Questions