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* 1. Enter your First and Last names

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* 2. Select all that apply.  Types of pulsation include:

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* 3. What is the most typical range of pulsation rates in pulsation cycles per minute (ppm)?

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* 4. Pulsation rate is defined as "the number of times the pulsator actuates (liners open then close) in one minute."

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* 5. The transition between phase "a" and phase "b" occurs at what pressure?

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* 6. The transition between phase "c" and phase "d" occurs at what pressure?

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* 7. Select the correct statements that match the pulsation phase with the corresponding liner position.

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* 8. The durations of both "a" phase and "c" phase depend primarily on the pulsation chamber volume, the length of the long pulse tube, and the size of the pulsator air port.

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* 9. Most air movement into and out of the pulsation chamber occurs during the "b" phase.

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* 10. Select all that apply.  During the "d" phase, the liner ________.

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* 11. The pulsation ratio is defined in international standards as the ratio of opening and open phases (a+b) to the closing and closed phases (c+d).

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