CGL Equipment Operation and Maintenance 2 — Questions and Answers
Question 1: When scanning bound genealogical volumes, which technique best prevents damage to the spine while still capturing complete page images?
- Pressing the book flat with a glass platen
- Using a V-cradle scanner or overhead book scanner (Correct answer)
- Removing pages and scanning individually
- Folding pages back 180 degrees for a flat scan
Correct answer: Using a V-cradle scanner or overhead book scanner
V-cradle or overhead book scanners allow digitization without forcing the spine flat, preserving fragile bindings.
Question 2: A document scanner's ADF (Automatic Document Feeder) repeatedly misfeeds fragile 19th-century newspaper clippings. What is the safest corrective action?
- Increase the paper weight setting and retry
- Flatten the clippings with a heavy book overnight
- Switch to flatbed scanning with manual feed (Correct answer)
- Reduce scan resolution to lower paper tension
Correct answer: Switch to flatbed scanning with manual feed
Fragile documents should always be scanned on the flatbed to avoid mechanical stress from the ADF rollers.
Question 3: Which DPI setting is generally recommended for digitizing standard handwritten genealogical documents for archival preservation?
- 72 DPI
- 150 DPI
- 300–400 DPI (Correct answer)
- 1200 DPI
Correct answer: 300–400 DPI
300–400 DPI captures sufficient detail for handwritten text while keeping file sizes manageable for archival use.
Question 4: What type of lighting is most problematic when photographing original genealogical documents with a digital camera?
- Diffuse natural light from a north-facing window
- Direct flash causing glare and hotspots (Correct answer)
- Continuous LED panel lighting at 45-degree angles
- Overhead fluorescent lighting with diffuser panels
Correct answer: Direct flash causing glare and hotspots
Direct flash creates specular glare that obscures handwriting and document details, making images difficult to read.
Question 5: A researcher is copying microfilm using a microfilm reader-printer. The prints are consistently too dark and details are lost in shadows. What adjustment should be made first?
- Increase the contrast setting
- Decrease the exposure/darkness setting (Correct answer)
- Clean the lens with a dry cloth
- Replace the lamp immediately
Correct answer: Decrease the exposure/darkness setting
Decreasing the exposure or darkness setting lightens the output, recovering detail lost in overexposed shadow areas.
Question 6: When storing a laptop used for genealogical fieldwork in a vehicle, what is the primary environmental risk in summer months?
- Humidity causing condensation inside the case
- Excessive heat from solar gain damaging the battery and hard drive (Correct answer)
- Static electricity discharge from fabric seats
- Magnetic interference from the car's audio system
Correct answer: Excessive heat from solar gain damaging the battery and hard drive
Parked vehicles can reach extreme temperatures that damage lithium batteries and cause hard drive failure.
Question 7: Which file format is preferred when saving scanned genealogical images for long-term archival purposes to avoid lossy compression artifacts?
- JPEG (.jpg)
- TIFF (.tif) (Correct answer)
- BMP (.bmp)
- GIF (.gif)
Correct answer: TIFF (.tif)
TIFF supports lossless compression, preserving all image data without the quality degradation caused by JPEG's lossy algorithm.
CGL Equipment Operation and Maintenance 2
When scanning bound genealogical volumes, which technique best prevents damage to the spine while still capturing complete page images?