Are these questions really on the FAA Glider Commercial written test? I'm currently working on my Commercial Glider rating and for the written, I am using a popular test prep package.  The package allows the specific selection of Commercial Glider (vs Airplane, Helicopter, etc.)  Indeed, their glider question bank has 639 questions, whereas the Airplane and Helicopter question banks have 881 and 727 questions respectively.

So I was surprised to be presented with several questions that I wouldn't have expected glider only pilots to have to know.  For example:



I am also a PPSEL, so I was able to answer this, but I've never come across a glider with a VOR installed, and I frankly am not sure how useful one would be.

I was even more surprised to find this question:



Why would this be on any Commercial written test (let alone the Glider commercial?).  An instrument rating is NOT required for any commercial rating AFAIK, and certainly not for a Glider commercial rating.

So my question is, is this just a mistake in the test prep software, or are these types of questions actually on the Glider Commercial written test?
Well, now that I've taken (and passed) the test, I feel somewhat qualified to answer my own question.  

The first question, The VOR CDI indication deflection question, was indeed on the test.  There was also a question on VOR receiver checks "from a designated checkpoint on the airport surface".

The second (IFR) question was NOT on the test.

Of course, the test has 100 questions and the question bank is reported to have > 600 questions, so there is no garuntee that it couldn't be on the someone else's test.  IOW, YMMV.