Natural rubber has excellent resilience but has a low resistance to _______________________.

____________________ is a material only used in noncritical conditions, is not recommended for water service and has a maximum temperature rating of 250 degrees F.

This material known as __________________ has a high resilience, a maximum temperature rating of 500 degrees F, and has one of the best sealability factors of any gasket material.

Soft _____________ gaskets are designed to compress in concentric rings in stainless steel flanges and are used for oil and gas pipelines.

Some manufactures use a __________________ on the outside diameter of some gaskets to identify the material without breaking the seal.

Flanges with an odd number of holes can be laid out using a protractor by simply dividing _______________ degrees by the number of holes.

_____________________ can be used to transfer a flange pattern onto your gasket material.

When tightening the bolts on a circular flange, you should follow the manufacture's sequence. You typically start at 12 o-clock and go to __________.

Packing is used to form a seal around shafts, stems, and ___________________.

When used as dynamic seals, ___________ O-rings make adequate seals, but need mechanical loading.

When installing gaskets, tighten each bolt in sequence _______________.

Which O-ring would you select where you need excellent chemical resistance and a temperature range of 300 to 500 degrees F.

______________________ O-rings are not recommended for most petroleum products but it resists brake fluid.

Packing is installed in a packing gland and the ends are staggered _____________ degrees.