How much do you know about fuel cells? Care to test your knowledge?
Questions: 5 | Attempts: 922 | Last updated: Sep 9, 2016
Hydrogen is limitless.
You know one thing: gas prices are rising quickly -- and that's not good! But how much do you know about the details behind the numbers? Take our quiz to find out how much you know!
Questions: 10 | Attempts: 8677 | Last updated: Feb 14, 2013
How much do you pay in taxes per gallon of gasoline?
The ASSE 6010 Medical Gas Installer's Training Course consists of 32 hours of training covering all facets of ASSE Standard 6010 and NFPA-99, 2015 edition. Installation of these gas cylinders is not easy, and therefore it is...
Questions: 50 | Attempts: 5083 | Last updated: Oct 15, 2020
Runouts from horizontal mains or branches shall be taken off ________ the centerline of the pipeline.