Appropriate use case for using Quick Task

Can you provide more detail on what you mean by this? I'm not sure what you mean.
"But when configured as quick task it is not coming ;from where I can continue this quick task."

The whole story is like this ,I have a PM which has 2 user input tasks. One after the other with a decision gateway. I have published model and added to Actions of my application. Now here is sequence
1.From actions i launch my PM, I get my first user input task (this is chained)
2.I press submit button.
3.The flow takes to second user input task which is configured as a quick task. (in this one i am not using chaining)
4. I expect that a task will get assigned under Tasks tab in TEMPO
5.Nothing is happening ,but the PM stops at the user input task.

The whole story is like this ,I have a PM which has 2 user input tasks. One after the other with a decision gateway. I have published model and added to Actions of my application. Now here is sequence
1.From actions i launch my PM, I get my first user input task (this is chained)
2.I press submit button.
3.The flow takes to second user input task which is configured as a quick task. (in this one i am not using chaining)
4. I expect that a task will get assigned under Tasks tab in TEMPO
5.Nothing is happening ,but the PM stops at the user input task.

Configuring the second task as a quick task will cause it to *not* show up in the tasks tab. If that is desired then you will need to chain into it. If you want it to show up in Tasks, un-chained, then you will need to remove the Quick Task feature from it.