Sensitometry Chaper 10 Review
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10 terms
Terms | Definitions |
|---|---|
 D | What term is defined as a measurement of the amount of light transmitted through the film? (p 233) A. Sensitometry B. Film Contrast C.Film Speed D. Optical Density |
| C | What is the diagnostic range of optical densities? (p 235) A. 0.15 to 4.0 B. 0.5 to 1.25 C. 0.50 to 2.0 D. 0.10 to 2.0 |
| D | An optical density of 1.0 indicates that _____ light was transmitted. (p 234) A. 0.01% B. 0.1% C. 1.0% D. 10% |
| B | A ______ change in optical density results from a change in the percentage of light transmittance by a factor of 2. (p 235) A. 0.03 B. 0.3 C. 3.0 D. 30 |
| A | Changes in exposure have little effect on density in which of the following regions of the sensitometric curve: (1) toe, (2) shoulder, or (3) straight line? (p 239) A. 1 and 2 only B. 1 and 3 only C. 2 and 3 only D. 1,2, and 3 |
| C | When the exposure technique used produces densities outside the straight-line portion of a sensitometric curve, how is contrast affected? (p 250) A. Increased B. No effect C. Decreased D. Improved |
| A |  Compare the sensitometric curves in Figure 9-20. Which film is faster? A. Film A B. Film B C. Film C D. Film D |
| D | Compare the sensitometric curves in Figure 9-20. Which film has lower contrast? A. Film A B. Film B C. Film C D. Film D |
| A | Film B has an exposure speed point of 1.5, and Film A has an exposure speed point of 1.2. Is there a difference in speed? A. Film A is twice as fast as Film B B. Film A and Film B have equal speed C. Film A is half as fast as Film B D. Film B is twice as fast as Film A |
| C | Changes in radiation exposure have the greatest effect on optical densities in which sensitometric region? A. Toe B. Shoulder C. Straight line D. Toe and Shoulder |
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