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BOILERMAKER TEST 2 QUESTIONS AND AND ASWERS
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The type of O-ring that can be used with most petroleum and silicone fluids, hydraulic fluids, and solvents is _____. - Buna-N To lay out a new gasket, draw_______ for the diameter of the pipe opening and the outside diameter of the flange. - Concentric circles Once the size of a gasket or O-ri...

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Document information

  • August 13, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • boilermaker

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  • BOILERMAKER
  • BOILERMAKER

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BOILERMAKER TEST 2

The type of O-ring that can be used with most petroleum and silicone fluids, hydraulic fluids, and
solvents is _____. - Buna-N



To lay out a new gasket, draw_______ for the diameter of the pipe opening and the outside diameter of
the flange. - Concentric circles



Once the size of a gasket or O-ring has been

determined, _____ factors must be considered before choosing a gasket or O-ring. - compatibility



The gasket that is made of stainless steel with a graphite insert is the______ gasket.



gasket. - spiral-wound



Natural rubber has limited chemical resistance

to________. - petroleum products



The gasket material that is not recommended for water service and has poor chemical resistance is_____
.- neoprene



Which of the following substances would be compatible with a nitrile gasket? - Alcohol



RTJ gaskets are used in ________ applications - high-pressure



The radius of a bolt circle is equal to__________. - half the diameter

, In gasket making, bluing ink is used to_____. - transfer the flange impression to the gasket
material



When tightening the bolts on a circular multi bolt flange, you should start at 12 o'clock and proceed
clockwise around the flange. - False



Graphite packings should not be used for applications

where____ is present. - oxygen



TFE/synthetic fiber packing is used in ________. - caustic chemical applications



Packing rings are usually installed in a _____

on revolving equipment. - gland



When installing new packing, stagger the

new cut end ____ from the cut end of the

ring before it. - 180 degrees

The approximate temperature range for _______

O-rings is -31 °F to 400°F. - Viton®



Gaskets made of natural rubber have limited solvent and oil ________ may become damaged by
petroleum products. - Resistance



A gasket must be able to withstand the required bolt torques without undergoing excessive _________. -
Plastic flow



A(n) _________ material will not react with other chemicals. - Inert



When a gasket loses thickness and protrudes from a flange, it is developing_______ . - Creep

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