Could everyone please help me figure out how to answer this question? Thank you.
Thread Content
When selecting a pressure gauge, when the pressure being measured is relatively stable, the maximum pressure value should not exceed : A、1/3 B、2/3 C、3/4 D、1/4 of the gauge’s range
The answer is B. The pressure commonly used in a pressure gauge is within 1/3 to 2/3 of the gauge’s range
Thank you. Thank you very much for your help.
It should be D when the pressure under test is relatively stable
Choosing C is not contradictory to the fact that the usual pressure used in a pressure gauge lies within 1/3 to 2/3 of the gauge’s range
B； The maximum pressure measured by a pressure gauge generally should not exceed 2/3 of the gauge’s upper measurement limit.
According to design specifications and relevant standards, the maximum measurement value of a pressure gauge should not exceed 2/3 of its range. Only B is correct.
This post was last edited by mlxx2008 on 2010-7-5 08:51. Personal understanding: When the pressure remains relatively stable, the maximum pressure value measured should be at 4/3 of the gauge’s range; this way, the instrument’s reading error is reduced and the measurement accuracy improves. In areas with large pressure fluctuations, it is better to choose a value between 1/2 and 2/3 of the range. The reason is that when using a pressure gauge, the measurement value falls within the range of 2/3 to 3/4 of the total scale, and reference error is the main factor to consider.
Based on the usage pattern, the quality of the current table is very poor; it is recommended to choose 1/3_2/3
Based on the usage pattern, the quality of the current table is very poor; it is recommended to choose 1/3_2/3