Question

state three precaution taken in preparing hydrogen

Answer 1

HYDROGEN IS A VOLATILE ELEMENT THEREFORE WE SHOULD HANDLE IT WITH CARE.

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Answer 2

a. To provide a path for for any static electrical charge generated in the equipment, ground all inflation equipment as follows:

    1. Drive two copper grounding rods, spaced 5 feet apart into the earth to a depth of at least 3 feet.

    2.  Measure the resistance between the two rods with an ohmmeter.  The resistance should be less than 1,000 ohms.  If the resistance is more than 1,000 ohms, add as many rods as needed, at 4 foot intervals until the resistance measures less than 1,000 ohms.

    3.  Connect the grounding stakes to the balloon launcher using a grounding cable, or to the water can when a hydrogen generator is used.

    b.  Prepare wire strap grounding connections to interconnect all metal parts of the inflation equipment as follows:

    1.  Clean the metal surfaces of all metal parts with sandpaper to expose the bare metal.

    2.  Make enough ground straps to interconnect all parts.   Use wire and alligator clips or ground clamps.

    3.  Interconnect all metal parts with the ground straps.

    4.  Connect a ground lead from the equipment to the grounding rods.

    c. Personnel grounds are required when woolen or fur, or synthetic clothing is worn to provide a path to ground for static electricity.  Wear a wristband of metal connected to a good ground.  For convenience, use a plug at the end of the wire from the wristband , and a jack permanently connect to ground.