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The narrower the bore the less liquid (Mercury or alcohol) is required so the bulb containing the fluid will adjust more quickly to the temperature being measured. o.k well the narrower bore makes the liquid move slower up the thermometer so the accuracy is better ?????
Wiki User
∙ 15y ago
Wiki User
∙ 13y agoThis is used in clinic thermomethers to keep the volume of mercury above the bulb when you take it out of the body, otherwise the temperature drop will change the reading of the temperature of the body.
Wiki User
∙ 11y ago- Because the temperature given off the liquid often spreads throughout a certain distance: steam from a kettle moves through the atmosphere
- Because the temperature might be too hot/cold for the thermometer to sit in
- It doesn't always sit above liquid, when in practicals, I use it IN the liquid
Wiki User
∙ 15y agoSo that it can regulate the flow of the rest of the liquid...i think :)
Wiki User
∙ 12y agobecause it does
Travor Mulelo
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Why does a mercury-in-glass laboratory thermometer have a narrow capillary bore?
To increase the sensitivity of the thermometer, that is, for the thermometer to respond quickly to small changes in temperature.
How do you increase the range of a thermometer?
If you're the one designing the thermometer, you could make it longer or make the bore wider. If you've got an existing thermometer, there's not much you can do.
Why are the thermometers called liquid in glass thermometers?
A so-called "glass" thermometer has a small bore-hole in the center of the glass that has some liquid in it. It's the activity of the liquid in the narrow hole that makes the thermometer a thermometer.
Why does a mercury-in glass thermometer first drop slightly when placed in boiling water?
When placed in boiling water, the materials comprising the thermometer respond in the order in which the heat penetrates them. As the heat first permeates the glass cylinder, the cylinder expands, enlarging the bore. For the moment until the mercury is also heated, the constant volume of mercury fills the expanded bore to a slightly lower depth. When the heat reaches the mercury and it also expands, its volume to increase, and the liquid depth rises in the bore.
How does the size of capillary bore of a thermometer affect its accuracy?
As the temperature rises, the mercury expands into a narrow bore, because the volume of the mercury increases. If the bore is very narrow then the extra volume has to go a longer way up the bore to accomodate that volume, so it is more sensitive to small changes of temperature. And it is easier to spot small changes of temperature, and read them from the scale more accurately. But if the scale isn't marked accurately in the first place you are no better off.
What is a thermometer bore?
A bore refers to the extremely fine or narrow tube found in a thermometer. It is called a narrow bore or a capillary.
Why does a mercury-in-glass laboratory thermometer have a narrow capillary bore?
To increase the sensitivity of the thermometer, that is, for the thermometer to respond quickly to small changes in temperature.
How do you increase the range of a thermometer?
If you're the one designing the thermometer, you could make it longer or make the bore wider. If you've got an existing thermometer, there's not much you can do.
The capillary tubing has a uniform bore in a mercury thermometer?
yes ! to insure linearity
Why are the thermometers called liquid in glass thermometers?
A so-called "glass" thermometer has a small bore-hole in the center of the glass that has some liquid in it. It's the activity of the liquid in the narrow hole that makes the thermometer a thermometer.
What is a bore on a shotgun?
Bore is the number of lead spheres the diameter of the barrel it would take to equal one pound. Ergo, the larger the bore, the smaller the barrel.
How should you do to increase the accuracy of the thermometer?
using a thin capillary bore using a thick glass stem
If the bore on a 350 is 4.0 the smaller bore of 3.8594 can it be made bigger to 4.0?
It would probably not be safe to bore an engine .140" oversize. Might leave the walls too thin to prevent overheating and/or cracking.
Is the gauge of the needle the bore size?
Yes, the larger the gauge the smaller the needle size.
What is difference between a clinical and a laboratory thermometer?
A lab thermometer normally is very long and has a wide range of measurement with uniform degrees spread out over the distance and has a mark showing how far into the measured substance it go to get accurate measurements.A clinical thermometer has a larger bore at the bottom where the contents can expand without measurement occuring then a tiny bore where the degrees are spread out at the body temperature. Thus at room temp, all the liquid is down in the big area and only as it gets up to 95 degree or so is the liquid expanded in the reading area. This allows the thermometer to be physically short and easy to handle while having wide degrees to be easy to read. There is also a trap so that the column separates leaving liquid in the tiny bore to read instead of dropping quickly on removal. The liquid has to shaken out of the tiny bore back into the big one.
Will 22 caliber cleaning rod fit down a 177 caliber barrel?
Not usually. The bore diameter of a .177 cal. is smaller. If the rod did fit the bore, the brush or jag wouldn't.
What is a big rifle?
Big bore rifles are generally considered to be 40 caliber and above.
