I would like to know this too. I am a transportation guy, ironically I passed Seismic and failed Surveying! Hehe.. I felt like Surveying test had a lot more time-consuming questions compared to Seismic which had a more balanced distribution. At least it felt that way for me. Another challenge with Surveying compared to Seismic is I could not find a single highly recommended reference like Seismic has (eg. EET) on Amazon. All survey books on Amazon for the test have really mixed reviews. I encountered several questions that neither of my survey book covered (I have PPI and Mansour's book). PS- I wonder with the new updated test plan implemented in 2018, the existing survey books became even a bit less dependable.