4BE3.5 U3 C4 Obj 2

<p>Because it is less prone to mechanical error</p> Signup and view all the answers

<p>To the steam space or to the water column or its steam connection</p> Signup and view all the answers

<p>To reduce the likelihood of blockage in the piping connection</p> Signup and view all the answers

<p>To isolate the gauge for maintenance or repair</p> Signup and view all the answers

<p>To ensure the accuracy of the gauge</p> Signup and view all the answers

<p>To protect the pressure gauge from steam</p> Signup and view all the answers

<p>To protect the pressure-sensing device from steam</p> Signup and view all the answers

<p>¼ in. (6 mm) inside diameter</p> Signup and view all the answers

<p>To verify the accuracy of the boiler pressure gauge</p> Signup and view all the answers

<p>Not less than NPS ¼ (DN 8) but where steel or wrought iron pipe or tubing is used, not less than ½ in. (13 mm) inside diameter</p> Signup and view all the answers

<p>To trap condensate and keep steam away from the pressure gauge</p> Signup and view all the answers

<p>The piping arrangement must be equipped with tees, cross-tees, and plugs so that the pressure piping can be inspected and cleaned on a regular basis</p> Signup and view all the answers

<p>To attach a test gauge when the boiler is in service</p> Signup and view all the answers

<p>Because steam can reduce the accuracy of the pressure gauge</p> Signup and view all the answers

<p>The piping arrangement must contain a siphon or equivalent device that will develop and maintain a water seal</p> Signup and view all the answers

<p>To prevent a pressure vessel explosion due to excessive internal pressure</p> Signup and view all the answers

<p>To enable the operator to determine the boiler's normal operating pressure from a distance</p> Signup and view all the answers

<p>To reduce the likelihood of blockage in the piping connection</p> Signup and view all the answers

<p>To isolate the gauge for repair or replacement</p> Signup and view all the answers

<p>To prevent incorrect pressure readings</p> Signup and view all the answers

<p>To ensure the boiler is operating within a safe pressure range</p> Signup and view all the answers

<p>To enable the operator to quickly respond to pressure changes</p> Signup and view all the answers

<p>To ensure the safe operation of steam boilers</p> Signup and view all the answers

<p>To protect the pressure gauge from steam</p> Signup and view all the answers

<p>To protect the pressure-sensing device from steam</p> Signup and view all the answers

<p>¼ in. (6 mm) inside diameter</p> Signup and view all the answers

<p>To verify the accuracy of the boiler pressure gauge</p> Signup and view all the answers

<p>NPS ¼ (DN 8)</p> Signup and view all the answers

<p>To connect the test gauge to the boiler</p> Signup and view all the answers

<p>To prevent damage to the gauge from high temperature and high pressure steam</p> Signup and view all the answers

<p>Tees, cross-tees, and plugs</p> Signup and view all the answers

<p>To build condensate in a small internal reservoir</p> Signup and view all the answers

<p>A siphon or equivalent device that will develop and maintain a water seal</p> Signup and view all the answers

<p>Age-related material degradation</p> Signup and view all the answers

<p>The pressure indication will be affected by the boiler's hydrostatic head</p> Signup and view all the answers

<p>To isolate the pressure gauge for maintenance</p> Signup and view all the answers

<p>To enable the operator to monitor the boiler's pressure from a distance</p> Signup and view all the answers

<p>The operator will not be able to tell if the boiler is at its normal operating pressure</p> Signup and view all the answers

<p>To ensure the safe operation of steam boilers</p> Signup and view all the answers

<p>To enable the operator to tell if the boiler is at its normal operating pressure</p> Signup and view all the answers

<p>The pressure gauge will be less accurate</p> Signup and view all the answers

<p>To protect the pressure gauge from steam</p> Signup and view all the answers

<p>¼ in. (6 mm) inside diameter</p> Signup and view all the answers

<p>To verify the accuracy of the boiler pressure gauge</p> Signup and view all the answers

<p>Not less than NPS ¼ (DN 8)</p> Signup and view all the answers

<p>To build condensate in a small internal reservoir to protect the pressure gauge</p> Signup and view all the answers

<p>To protect the pressure-sensing device from steam</p> Signup and view all the answers

<p>Equipped with tees, cross-tees, and plugs</p> Signup and view all the answers

<p>To connect the test gauge when the boiler is in service</p> Signup and view all the answers

<p>The gauge or piping to the gauge shall contain a siphon or equivalent device</p> Signup and view all the answers

<p>To specify the requirements for the piping arrangement</p> Signup and view all the answers

<p>Graduation of the pressure gauge dial = To approximately double the safety valve setting Location of the pressure gauge = So that it is easily readable Shutoff valve adjacent to the gauge = To allow for maintenance and repairs Connection of the pressure gauge = To the steam space or water column</p> Signup and view all the answers

<p>Calibrating the pressure gauge to double the safety valve setting = The operator can tell at a distance if the boiler is at its normal operating pressure Having the pressure gauge read at mid-span = It is most accurate at this point Connecting the pressure gauge to the steam space or water column = It reduces the likelihood of blockage in the piping connection Having a shutoff valve adjacent to the gauge = It allows for maintenance and repairs</p> Signup and view all the answers

<p>Not graduating the pressure gauge dial to approximately double the safety valve setting = The operator may not be able to tell if the boiler is at its normal operating pressure Not connecting the pressure gauge to the steam space or water column = The pressure indication may be affected by the boiler's hydrostatic head Installing another shutoff valve between the pressure gauge and the boiler = It may prevent the pressure gauge from functioning properly Not having a shutoff valve adjacent to the gauge = It may make maintenance and repairs difficult</p> Signup and view all the answers

<p>ASME BPVC I Part PG-60.6.1 = To ensure the safe operation of steam boilers The pressure gauge = To indicate the boiler's internal pressure The shutoff valve adjacent to the gauge = To allow for maintenance and repairs The siphon = To protect the pressure gauge from steam</p> Signup and view all the answers

<p>Boiler explosions = Can be caused by excessive internal pressure Regular maintenance = Is essential to prevent boiler failures Connecting the pressure gauge to the steam space or water column = Reduces the likelihood of blockage in the piping connection Calibrating the pressure gauge to double the safety valve setting = Allows the operator to easily read the pressure</p> Signup and view all the answers

<p>Connection to the boiler, except the syphon = Must be according to ASME BPVC I Part PG-60.6.1 Minimum size of a syphon = Is specified by ASME BPVC I Part PG-60.6.1 Piping arrangement = Must be according to ASME BPVC I Part PG-60.6.1 Valve connection = Must be according to ASME BPVC I Part PG-60.6.3</p> Signup and view all the answers

<p>Pigtail siphon = Has a coiled tube that protects the pressure gauge from steam Fined siphon = Has a series of small tubes that protects the pressure gauge from steam Siphon = Protects the pressure gauge from steam and sediment Master test pressure gauge = Used to calibrate other pressure gauges</p> Signup and view all the answers

<p>Easily readable pressure gauge = Essential for safe boiler operation Accurate pressure gauge = Essential for safe boiler operation Regular maintenance = Essential to prevent boiler failures Shutoff valve adjacent to the gauge = Allows for maintenance and repairs</p> Signup and view all the answers

<p>ASME BPVC I Part PG-60.6.1 = The minimum size of a syphon shall be ¼ in.(6 mm) inside diameter ASME BPVC I Part PG-60.6.3 = Each boiler shall be provided with a valve connection at least NPS ¼ (DN 8) for the exclusive purpose of attaching a test gauge ASME BPVC IV Part HG-602 = The gauge or piping to the gauge shall contain a siphon or equivalent device that will develop and maintain a water seal</p> Signup and view all the answers

<p>Pigtail siphon = A piping arrangement that traps condensate in its lower parts Fined siphon = A piping arrangement that prevents steam from entering the gauge tube</p> Signup and view all the answers

<p>To prevent steam from entering the gauge tube = To develop and maintain a water seal To permit the pressure to be transmitted to the gauge = To keep steam away from the pressure-sensing device To inspect and clean the pressure piping on a regular basis = To trap condensate in its lower parts To protect the pressure gauge from the action of high pressure and high temperature steam = To ensure the siphon or the equivalent device does not plug off</p> Signup and view all the answers

<p>To prevent steam from entering the gauge tube = To reduce the elasticity of the Bourdon tube To protect the pressure-sensing device = To weaken the brazed joints To ensure the accuracy of the gauge = To reduce the service life of the gauge To prevent the damaging effects of steam = To develop and maintain a water seal</p> Signup and view all the answers

<p>To attach a test gauge when the boiler is in service = To ascertain the accuracy of the boiler pressure gauge To shut off the pressure gauge from the boiler = To permit the pressure to be transmitted to the gauge To connect the pressure gauge to the steam space or water column = To protect the pressure gauge from steam To inspect and clean the pressure piping on a regular basis = To ensure the siphon or the equivalent device does not plug off</p> Signup and view all the answers

<p>A liquid seal = To prevent steam from entering the gauge tube A piping arrangement that traps condensate = To keep steam away from the pressure-sensing device A small internal reservoir = To protect the pressure gauge from the action of high pressure and high temperature steam A spiral pattern or a “U” shape = To develop and maintain a water seal</p> Signup and view all the answers

<p>The piping shall be so arranged that the gauge cannot be shut off from the boiler except by a cock = ASME BPVC IV Part HG-602 The connections to the boiler, except the syphon, shall not be less than NPS ¼ (DN 8) = ASME BPVC I Part PG-60.6.1 The piping shall be equipped with tees, cross-tees, and plugs = ASME BPVC I Part PG-60.6.1 The minimum size of a syphon shall be ¼ in.(6 mm) inside diameter = ASME BPVC I Part PG-60.6.3</p> Signup and view all the answers

<p>To verify the accuracy of the boiler pressure gauge = To ascertain the pressure shown on the boiler gauge To connect the pressure gauge to the steam space or water column = To protect the pressure gauge from steam To inspect and clean the pressure piping on a regular basis = To ensure the siphon or the equivalent device does not plug off To attach a test gauge when the boiler is in service = To permit the pressure to be transmitted to the gauge</p> Signup and view all the answers

<p>To prevent steam from entering the gauge tube = To reduce the elasticity of the Bourdon tube To protect the pressure-sensing device = To weaken the brazed joints To ensure the accuracy of the gauge = To reduce the service life of the gauge To prevent the damaging effects of steam = To develop and maintain a water seal</p> Signup and view all the answers

<p>To shut off the pressure gauge from the boiler = To permit the pressure to be transmitted to the gauge To connect the pressure gauge to the steam space or water column = To protect the pressure gauge from steam To attach a test gauge when the boiler is in service = To ascertain the accuracy of the boiler pressure gauge To inspect and clean the pressure piping on a regular basis = To ensure the siphon or the equivalent device does not plug off</p> Signup and view all the answers