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Assignment Questions - 14209_453
Assignment Questions - 14209_455

Photography (Basic) - Introduction to photography and other graphic techniques
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7-54. The  specific  gravity  measurement of a solution is below the lower limit. This may be an indication of  which  of  the  following  errors? 1. The  solution  is  diluted with too much water 2. Not enough water was added 3. Too  much  of  an  ingredient has been added 4. The  solution  may  be  highly acidic 7-55. A hydrometer used to measure the silver content of a fixing bath is calibrated in grams of silver per 1. ounce 2. milliliter 3. gallon 4. liter 7-56. Specific  gravity  is  a  measurement of what property of a liquid? 1. Composition 2. Strength 3. Opacity 4. Density 7-57. What part of the meniscus, if any, at the stem of the hydrometer indicates the ratio of the density of a solution to the density of distilled  water? 1. The top 2. The center 3. The bottom 4. None 7-58. Acidity  and  alkalinity  of  solutions are  measured  with  what  instrument? 1.  Hydrometer 2. pH meter 3. Activity indicator 4.  Sensitometer 7-59. Photographic  developing  solutions have which of the following pH values? 1. 3.1 to 5.0 2. 5.0 to 8.0 3. 8.0 to 12.0 4. 12.0 to 14.0 7-60. An alkali may have which of the  following  pH  values? 7-61. A pH value of 7.0 is 7-62. 1. acidic 2. alkaline 3. neutral A pH value of 1.0 is how many times stronger than a pH value of 3.0? 7-63. 1. One 2. Two 3. Ten 4. One hundred The  solution  used  to  standardize a pH meter is known as what type of  solution? 7-64. 1. Acid 2. Alkali 3. Buffer 4. Neutral You are standardizing a pH meter before taking the pH reading of a black-and-white  fixer. You should use a buffer solution with what pH value  to  standardize  the  meter? 1. 1.0 2. 5.0 3. 7.0 4. 9.0 1. 14.0 2. 10.0 3. 7.0 4. 4.0 Learning Objective: Identify procedures used in mixing photographic  chemicals. 54







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