They will test the drain flow, or try to anyway, but a plumber has the actual camera.  

Here’s several things I failed at the first time I tried them: Kissing a girl, changing a diaper, painting a house, pouring a glass of milk, changing a car tire, doing a podcast, buying a property, taking a math test, talking, walking and eating.

I did 10-15 practice tests, 500-700 questions then took the test.  

Keep up the posting while you're on that track, too, it's a great way to test what you've learned while building your network.Good luck on your new adventure!

Without GIS mapping software it is going to be labor intensive. 

Thanks Colleen, should I have the old paint tested first for lead content?

It's human nature to test the rules and manipulate administrators to evade adhering to policy. 

I always put up test ads in craigslist.org offer a similar deal, no address or pictures, to test if there are buyers out there before I get into a new area, price range or property type.

Test their limits, what do you have to lose...

(Answer: Some companies may try to say they can test their work after they have finished.