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Measuring Tools
Measuring instruments includes a vast amount of tools and instruments used for measuring. This would include micrometers (various types for various applications), scaled rules, durometers, spectrometers, tape measures, dumpy levels, spirit levels, combination sets, gauge blocks, vernier calipers, dial indicators, inside and outside calipers, etc.
1,282 Questions
What is a meniscus why it necessary to know about it when measuring liquids?
The meniscus is the concave line of liquid that forms in a graduated cylinder (measuring volume) due to that liquid's adhesion (the tendency to want to stick to other things). When measuring a liquid's volume in a graduated cylinder, you read the volume from the bottom of the meniscus. Therefore, the meniscus does not measure anything, it is where you measure a liquid's volume from.
What is the measurement of the average kinetic energy of the molecules of a substance?
temperature is the average kinetic energy of a particle
Tool use to calibrate a micrometer?
Calibrating micrometers: For quick reference the supplied test piece can be used. For calibrating a micrometer, gauge blocks are used.
What is the cause of resistance and how the resistance of wire can be determind?
The cause of resistance is the opposition to the flow of charges.Resistance occurs due to the collisions between charges inside a substance.
The resistivity of a wire can be found out by using a meter bridge or a slide wire bridge.
What is the function of the adjusting screw in the Bourdon gauge?
Bourdon gauge is a type of aneroid pressure gauge consisting of a flattened curved tube attached to a pointer that moves around a dial. As the pressure in the tube increases, the tube tends to straighten and the pointer indicates the applied pressure.
What are vernier calipers used for?
The correct spelling would be vernier callipers, or vernier calipers depending on which country you come from. They are used for measuring the inner distance between two surfaces. (e.g. if your tube material is 1 cm thick, and 5 cm across on the outside surface, the vernier calipers would show a distance of 3 cm.
What is the loudness of sound of the normal conversation?
The sound of a normal conversation is 60dB (decibels) and a close range jet is 140dB. This makes a jet at close range over 2 times as many decibels than a close range jet.
The sound of a normal conversation is 60dB (decibels) and a close range jet is 140dB. This makes a jet at close range over 2 times as many decibels than a normal conversation.
The above answer is FALSE:
The decibel scale is logarithmic and thus a 140 dB sound would be 10^14 above 0 decibel; the 60 dB sound would be 10^6 above 0 decibel. Thus the close range jet is around 10^(14 - 6) = 10^8, or 100,000,000 times the loudness of a normal conversation.
There are 2 things that can be called a micrometer:
1/ A device for measuring short distances accurately. Typically to better than 1 thousands of an inch (thou) or 0.01mm. They look a bit like a small G clamp, something is placed between the jaws and it is lightly tightened, the thread has a gauge on it so you can see how big the thing between the jaws is.
2/ A very small distance, 1 millionth of a meter. Also written μm. (Or sometimes um.)
Additional Information
The above answer needs to be qualified. In fact, the above answer only applies to American English. In British English,
1. A micrometer is an instrument for measuring small thicknesses or diameters, as per answer 1, above.
2. The unit of measure is called a micrometre.
In other words, in British English, a meter is a measuring instrument, whereas a metre is a unit of measurement.
Does a mercury barometer or aneroid barometer measure air pressure?
mercury has a sudden fall and then the barometter measure it and when i mean by fall i mean air pressure so yeah it's cool I knoe it doesn't make sense but Im just writing this anyway. Even though it's pure glorius silly you know what. I PUT THAT WORD BUT THEY WON'T LET ME POST THIS STUPID ANSWER
How do you calculate least count of micrometer?
Hi, heres how you calculate least count of a micrometer. Use the given formula:
Least Count (L. C) = Pitch/no. of divisions on micrometer barrel(thimble)
where,
Pitch = distance travelled by thimble on linear scale in one rotation.
Hi, heres how you calculate least count of a micrometer. Use the given formula:
Least Count (L. C) = Pitch/no. of divisions on micrometer barrel(thimble)
where,
Pitch = distance travelled by thimble on linear sacle in one rotation.
Why is it necessary to include units when measuring and dimensioning?
Because a measurement is pointless without the unit. How would you feel if someone offered to pay you 25 per hour and then, after a day 's slog, they told you it was 25 cents an hour? If you had assumed 25 dollars that was your own fault!
Or you paid a 70 centilitres bottle of wine and you were given a 70 microlitres!
What is a measuring tape used for?
- Metric Rulers and meter sticks are used to measure short lengths and distances. Both devices are marked in centimeters and millimeters.Metric Rulers are generally 15 cm (6 inches) and 30 cm (12 inches) long.
a tiny ruler that you know the measurements of, and you use it to calibrate the ocular lens of a microscope
What does a marine chronometer do?
For chronographs used in paintball and similar:
The modern chronograph consists of two sensing areas called chronograph screens, which contain optical sensors that detect the passage of the bullet. The bullet is fired so it passes through both screens, and the time it takes the bullet to travel the distance between the screens is measured electronically.
What will do first before using a new type of vernier scale?
There are several things that you should do first before using a new type of Vernier caliper. You should ensure that you fully understand how it works and test it elsewhere before using it in the real project.
What are the Basic concepts of Vernier calipers?
A Vernier caliper has many parts. Some of the main parts include an inside jaw, which performs measurements, the depth probe, which finds the depth, and outside jaws, which measure external lengths.
What device is used to measure the resistance of a resistor?
You can use a multi-meter to measure resistance. The specific portion of the meter for measuring resistance is called an ohmmeter.
What is meant by gauges in measuring thickness of plates?
Gauge actually refers to the number of feet of iron wire it takes to weigh a pound....it takes 10 feet of 10 gauge iron wire to make a pound and it takes 30 feet of 30 gauge iron wire to make a pound.
at some point in time this got applied to sheet metal and this gauge system works about the same way.....the bigger the number the thinner the sheet metal.
Eg:
The higher the gauge, the thinner the metal. If I'm not mistaken gauge is measured in millimeters, only backwards.
Like in electrical wiring, 14 guage wire is about a 16th inch and 10 guage is almost a 1/4 inch etc. etc.
In otherwords, the lower the gauge the thicker it is.
What is the difference between a colorimeter and flame photometer?
A colorimeter is a scientific instrument that measures the intensity of light passing through a pure sample. In biology, colorimeters are used to monitor the growth of cultures. As the culture grows, the growing medium becomes more cloudy and absorbs more light.
Which graduated cylinder is more precise a 25 mL or 100 mL?
As far as sig figs are concerned, the graduated cylinder will yield a measurement that is both more precise and accurate than is possible using an Erlenmeyer (precision and accuracy mean different things in science talk). Erlenmeyer flasks aren't really intended to be used for measurement of volume, as the width of the flask at the point of the markings introduces lots of error as you try and eyeball the level of fluid within it. The narrow column of a graduated cylinder will allow you to judge volume far more accurately since a difference in the height of fluid in one of these will result in a lower overall difference in volume when compared to the Erlenmeyer.
Keep in mind though, that just because a graduated cylinder contains a certain volume doesn't mean that it will deliver that entire volume to another container, since some of the liquid inevitably clings to the sides. This isn't a problem is you are simply trying to measure volume, but if you are trying to pour an exact volume into another container you need to use another method to do so. In this case your best bet is to pipette.
When thermometer is laid ouside the sun does it measure suns temperature or air temperature?
If a thermometer is laid out in direct sunlight, it will not measure the temperature of the air surrounding it. It will measure the temperature of the heat directly reaching it.
