GMetrix Exam GMetrix Photoshop 4 — Questions and Answers
Question 1: Which file format supports transparency, lossless compression, and is ideal for web graphics with flat colors?
- JPEG
- PNG-8 (Correct answer)
- GIF
- TIFF
Correct answer: PNG-8
PNG-8 supports up to 256 colors and full transparency, making it suitable for simple web graphics like logos and icons with flat colors.
Question 2: In Photoshop, what does increasing the 'Feather' value on a selection do?
- Expands the selection boundary outward
- Creates a soft, gradual transition at the selection edge (Correct answer)
- Smooths jagged edges by removing pixels
- Adds anti-aliasing to curved selections
Correct answer: Creates a soft, gradual transition at the selection edge
Feathering blurs the selection boundary by creating a gradual fade between selected and unselected areas, producing smooth, natural-looking transitions.
Question 3: What is the purpose of the Threshold adjustment in Photoshop?
- Converts an image to a two-tone black-and-white by setting a cutoff point (Correct answer)
- Reduces image noise below a set level
- Sets the maximum brightness value for highlights
- Converts color images to grayscale smoothly
Correct answer: Converts an image to a two-tone black-and-white by setting a cutoff point
Threshold converts an image to pure black-and-white pixels based on a luminance threshold slider, useful for finding the darkest and lightest points in an image.
Question 4: Which Photoshop workspace feature lets you save a custom arrangement of panels and menus?
- Preferences > Interface
- Window > Workspace > New Workspace (Correct answer)
- File > Save As Template
- Edit > Toolbar
Correct answer: Window > Workspace > New Workspace
Window > Workspace > New Workspace saves the current panel layout, menu customizations, and keyboard shortcuts as a named workspace you can switch to anytime.
Question 5: When the Magic Wand tool's 'Contiguous' checkbox is unchecked, what changes?
- The tool selects only the largest connected region
- The tool selects all similarly colored pixels across the entire image, not just connected ones (Correct answer)
- The tool requires a higher tolerance value to work
- The tool ignores anti-aliased edges
Correct answer: The tool selects all similarly colored pixels across the entire image, not just connected ones
Without Contiguous checked, the Magic Wand selects every pixel in the image that falls within the tolerance range, regardless of whether they are adjacent to the clicked pixel.
Question 6: What is a 'Vanishing Point' in Photoshop used for?
- Creating linear perspective guides for printing
- Editing and cloning in perspective on surfaces like walls and floors (Correct answer)
- Generating a 3D depth map from a flat image
- Merging multiple photos taken from different angles
Correct answer: Editing and cloning in perspective on surfaces like walls and floors
Vanishing Point (Filter > Vanishing Point) lets you define perspective planes and then clone, paint, paste, or transform content while maintaining the correct perspective.
Question 7: Which method is used to convert a color image to grayscale while controlling how each color channel contributes to the final brightness values?
- Image > Mode > Grayscale
- Black & White adjustment layer (Correct answer)
- Desaturate (Shift+Ctrl+U)
- Channel Mixer set to Monochrome
Correct answer: Black & White adjustment layer
The Black & White adjustment layer provides individual sliders for each primary and secondary color, giving full control over how colors translate to gray tones.
GMetrix Exam GMetrix Photoshop 4
Which file format supports transparency, lossless compression, and is ideal for web graphics with flat colors?