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When you measure air pressure most accurately you should use a mercury?
Wiki User
∙ 7y ago
A barometer
Wiki User
∙ 7y ago
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What should a barometer measure when there is a tornado?
If a tornado passes near or over a barometer, it will measure a very rapid drop in pressure. How much the pressure drops depends on the strength of the tornado and how close the center of it comes tot he barometer.
How do you measure fre-on?
On smaller residential air conditioners the manufacturer publishes a charging chart that has the outside air temperature and the corresponding suction and liquid pressure measured by a refrigeration manifold set, gauges. If the chart is not available, you can estimate by measuring the suction pressure and then using a pressure temperature chart for your refrigerant and trying to maintain a 35 degree to 40 degree temperature at the condensing unit or compressor. The other measurement on larger units is the subcooling measurement, measure the actual liquid line temperature and compare the liquid pressure using a pressure temperature chart and also checking for bubbles in the liquid line sight glass. On larger systems after the subcooling has been checked then the superheat has to be checked and the thermostatic expansion valve adjusted if necessary. To check the superheat, measure the suction pressure, convert to a temperature and then measure the actual suction line temperature. The difference is the superheat, should be 6 to 20 degrees depending on the system.
What is the difference between a Bourdon gauge and a barometer?
A barometer measures the pressure of the atmosphere. A manometer measures the pressure of something (most often a gas) inside a container. Some simple manometers actually measure the difference between the pressure inside the container and atmospheric pressure outside.
Which is true about intrapulmonary pressure and intrapleural pressure?
Intrapulmonary pressure will equalize to atmospheric pressure during a breathing cycle, but intrapleural pressure should always be less than atmospheric pressure.
Why is measuring accurately important in science?
Measuring accurately is far more important to keeping your job than science as a whole. Measuring accurately is important any time a measurement is taken for any reason. Just how accurate depends on the reason for the measurement If I am building a shipping crate, I need only cut the wood to within 1/16". If I am measuring radio field strength for a report to the FCC, I may need to measure the distance between two antennas to within 1/100 or even 1/1000 of an inch. The margin of error of all measurements should be included in final reports. For the purposes of your homework assignment Your teacher just wants you to take your time a measure accurately rather than quickly moving through the experiment. Therefore, it is important to my job, and your grade.
How a barometer can be used to measure the vapor pressure of a liquid?
A mercury thermometer, that is a barometer can be used to measure vapor pressure. Initially, a proper temperature must be recorded. Then the liquid should be injected into the mercury column. This new measurement subtracted from the original will yield the vapor pressure of a liquid.
What should be used to measure the diameter of a steel ball bearing as accurately as possible?
A vernier caliper should be used to measure the diameter of a steel ball.
What should the fuel pressure be on a 1991 Mercury Capri?
10lbs
What should the compression pressure be on a 8hp mercury outboard 2 stroke?
185psi
Where is tha low pressure valve on a 1995 mercury tracers air conditioning system?
The low pressure valve, on your 1995, Mercury, is located on the top of the air conditioning compressor. The low pressure valve should be labeled.
What should you measure when studying a gas?
The pressure, volume, and temperature
What should the fuel pressure be for a 1994 Mercury Tracer?
in the 1.9 liter engine it should be from 35-45 psi
Why should you measure flour accurately?
Because if you add more or less than what you need then the recipe will not come out right
How should blood pressure 110 80 millimeters of mercury be transcribed?
110/80 mm/Hg
What units would you use to measure the length of a pen lid accurately?
It depends on how accurate you wish to be. A millimetre should be OK but you can go overboard and measure it in micrometres, or even smaller units.
What is the normal fuel pressure reading for a 1999 Mercury Villager?
It should be 30-35 psi with the engine running.
What is the recommended tire pressure for a 1998 Mercury Tracer gs?
the tire pressure should be on a 1998 mercury tracer 32 rear and 32 front also check the passenger front door pillar it will tell you. the pillar is were the door latches to....
