I think the question ist what you understand under a pilot test? If you define pilot test as a primilary step to gain deeper insight into the factor structure your questionnaire data to derive a number factors (using different crieria, parallel analysis etc.) that you might want to confirm with CFA/ESEM in a further, independet sample than yes, than you might call it a pilot-test.  

Best wishes/M

If 110 respondents are enough, even for a pilot study depends on the number of items in your questionnaire or test. As a rule of thumb, there should be at least twice the number of cases than items.

According to Hair (2010) and Awang (2014, 2015) for pilot study minimum 100 respondents is required.

For sure, but the sample size need to be considered...you may also have a look on the attached file

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