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10 Cards in this Set
- Front
- Back
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When a diaphragm device is used for boiler water level measurement, the boiler pressure is compensated for or off-set by: 1) Using a bellows on the HP side 2) Reversing the reference and variable legs 3) Joining the reference and variable legs upstream of the device 4) A spring which balances the differential pressure 5) Applying the pressure to both sides of the diaphragm |
5) Applying the pressure to both sides of the diaphragm |
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A Bourdon tube is often in the shape of a spiral so that: 1) Higher pressures can be sensed 2) Its final output has less travel 3) More power and travel of the output occurs 4) Gears can be used for final output 5) Its sensitivity will be decreased |
3) More power and travel of the output occurs |
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A strain gauge is used to measure: 1) The tension given by a compressive load 2) Levels in tanks 3) The densities of materials 4) Pressure in boilers 5) Stresses in pipe walls |
4) Pressure in boilers |
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The purpose of a spiral or a helix Bourdon tube is to: 1) Reduce fluttering of the indicator needle 2) Decrease the degree of rotation 3) Decrease the linear motion 4) Provide a greater degree of rotation 5) Increase the pressure rating |
4) Provide a greater degree of rotation |
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A function of a Bourdon tube gauge hairspring is: 1) Eliminate pointer linearity 2) Return the tube to its zero position 3) Keep the pointer on zero 4) Return the pointer to zero 5) Eliminate backlash |
5) Eliminate backlash |
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In an area flow meter, the flow is measured at: 1) The bottom of the float 2) The float head edge 3) Mid range of the float travel 4) The outlet connected 5) The top of the float |
2) The float head edge |
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A chromatograph uses electronic devices which: 1) Increase in resistance as temperature rises 2) Are made of Chromel and Alumel 3) Utilize electrical current as a measurement base 4) Have inverse resistance properties relative to temperature 5) Work in conjunction with a thermocouple |
4) Have inverse resistance properties relative to temperature |
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Temperatures are measured by: 1) Bourdon tubes 2) Wattmeters 3) Thermowells 4) Pressure differentials 5) Thermocouples |
5) Thermocouples |
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In a rotameter, the flow is measured at: 1) Mid-range of the float travel 2) The bottom of the float 3) The float head edge 4) The outlet connection 5) The top of the float |
3) The float head edge |
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Thermowells are used to protect thermometers from: 1) Low temperature 2) Mechanical shock 3) High pressure 4) High temperature 5) Low pressure |
3) High pressure |
