Pennsylvania Hazmat question
 

I'm going to take my hazmat test tomorrow. I passed it 2 years ago when I got my CDL, but was too lazy/didn't have time to go get fingerprinted, so now I have to pass it again tomorrow.

Anyway, can someone tell me:

1. How many questions are you required to answer correctly? I think there are 30 questions right? I forget how many you're allowed to get wrong.

Are there any better/other practice test other than the Crist CDL website?

Thanks.

Here try this one. I think its 20 questions to pass. It was pretty easy to get.

http://www.enfield-ct.net/hazmat-test/

For any of the Cdl questions....
 

When you take the test on the computer at the Dept of Motor Vehicles, if you are unsure of any answer to a question, DO NOT GUESS. Skip that question instead. Make sure that you understand how to skip a question.
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Questions that you skip go to the bottom of the list. Once you get enough questions correct to pass the test, the test ends. It is entirely possible that you get enough correct answers (I believe it is 80% or 24 out of 30) that those questions you skipped will never have to be answered.
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Hint #1 No smoking around ELOGS
Explosives, flammable Liquids, Oxidizers, flammable Gas & flammable Solids.
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Hint #2 Cargo heaters rules - envision heat on your one LEG
flammable Liquids, Explosives & flammable Gas