Instructions:
This is a take-home quiz for each student to complete on their own. Please write your answers to these questions neatly on a sheet of paper and turn it in, labeled with your name.

Due date:
In class, Tuesday March 31.

1. How do you make the color green from the 3 additive light colors?
	A. Add red and blue light.
	B. Add blue and yellow light.
	C. Add cyan and yellow light.
	D. Add green and no other light.

2. How do you print green with the 3 subtractive ink colors?
	A. Print blue on yellow ink.
	B. Print cyan on yellow ink.
	C. Print cyan on magenta ink.
	D. Print green and no other ink.

3. Which statement is true?
	A. A gradational color scheme is best for seismic amplitudes.
	B. A contrasting color scheme is best for seismic amplitudes.
	C. A gradational color scheme provides the best contouring effect for picking values.
	D. Sun-angle shading provides the best view of peak values.

4. You have a zero-phase wavelet. How much phase shift negates the amplitudes of that wavelet?
	A. 30 degrees.
	B. 90 degrees.
	C. 180 degrees.
	D. 270 degrees.

5. You have a zero-phase wavelet. How much phase shift gives the derivative of that wavelet?
	A. 30 degrees.
	B. 90 degrees.
	C. 180 degrees.
	D. 270 degrees.

6. Which one changes when you shift the phase of a wavelet?
	A. Its frequency content or bandwidth.
	B. Its amplitude or energy.
	C. Where you pick the interface.
	D. Its phase difference relative to other reflections in the trace.

7. In a zero-phase data set, reservoirs are often represented by:
	A. Zero-phase reflections.
	B. 30-degree reflections.
	C. 90-degree reflections.
	D. 135-degree reflections.

8. In a zero-phase data set, basement and the water bottom should be represented by:
	A. Zero-phase reflections.
	B. 30-degree reflections.
	C. 90-degree reflections.
	D. 135-degree reflections.

9. In a properly zero-phase data set, you pick the time-depth of a zero-phase reflection at:
	A. Where the reflection energy first emerges from the noise.
	B. The zero crossing before the main peak (or trough).
	C. The center of the main peak (or trough).
	D. The zero crossing after the main peak (or trough).

10. In a properly zero-phase data set, you pick the time-depth of a 90-degree-phase reflection at:
	A. Where the reflection energy first emerges from the noise.
	B. The zero crossing between the equal peak and trough.
	C. The center of the first peak of the equal peak-trough pair.
	D. The center of the second peak of the equal peak-trough pair.