# 7.2: Homework 7

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1. What is another name for an on-delay timer?

2. Draw a timing diagram for the on-delay timer (including signal/control, NO and NC contacts)

3. What’s the difference between a single-function and multi-function timer?

4. Draw the schematic symbol for both the NO and NC contacts of an on-delay timer.

5. Describe a situation in industry where you might want to use a cumulative on-delay timer.

6. Describe the example Jim uses in the first video where an on-delay timer is used to control two conveyor belts. What’s the function of the timer in this case?

7. What is another name for an off-delay timer?

8. Draw a timing diagram for the off-delay timer (including signal/control, NO and NC contacts).

9. Draw the schematic symbol for both the NO and NC contacts of an off-delay timer.

10. Describe the performance of a flash/repeat/recycle timer.

11. Describe the difference between symmetric and asymmetric timers.

12. Describe the function of a positive/rising edge triggered one-shot timer.

13. Draw the timing diagram for a negative/falling edge triggered one-shot timer.

This page titled 7.2: Homework 7 is shared under a CC BY-SA 4.0 license and was authored, remixed, and/or curated by Ken Dickson-Self (OpenOregon) via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.