What is the action of litmus with aqueous solution Na2CO3?
Red litmus paper turn blue in basic solutions; sodium carbonate solution is basic.
What comes under the purview of stress analysis?
Elements subjected to loading or subjected to force.
When measuring the mass of liquid in a beaker subtract the?
You must obtain and subtract the mass of the beaker.
Is there a center reading inside micrometer?
i need to convert 100 microns sheet to gramper meter squre ie.
If you are using a balance scale than you are measuring mass in what?
You are measuring mass in any system for which you have standard masses.
What is linearity of a thermometer?
Within the thermometer's range of operation, a given temperature difference will result in the same expansion in the column of the thermometric liquid.
How do you pressurize and leak test the refrigeration system?
With a vacuum pump and an ac manifold set. Instead of pressurizing the system you pull down a vacuum of 29-30 in hg, close the valves and wait to see if the vacuum drops or remains at 29-30 in hg by monitering the gauges on the manifold set. I like to leave it in that position for an hour or two to be sure it doesnt lose vacuum. If it drops even a little you have a leak in which case I would charge the system with a shot of UV leak detector. You can locate the source of the leak with a black light after the system as been run for a while.
When measuring resistance where does the red cord go?
For simple resistance measurements it usually doesn't matter.
What tools were used by cobblers in the late 19th century?
Dumb heads pegs/nails, leather, shoesizer and othere thingy ma jiggys
How do you use a surveyor' level?
You set a surveyors level up , level it using the bubble (also known as a vial) levels on it. Once level, and set up on top of a tripod, you then have a level reference in 360 degrees. Think of it this way, its a level "slice" through the air that you cannot see, but the level you're using has a optical scope (glass telescope) and when you look through it, you'll see a crosshair like a rifle scope..the horizontal crosshair, that's the level reference point that cuts the "slice" through the air that I gave an example of. From that level slice , you use a level rod, or some way to measure from the level slice down. That is, you measure from level down to a point, for example, a finished floor elevation, or the top of a wall, or top of a manhole, anything that you're wanting to measure its "levelness" (not a word, but I'm using it so you know what youre measuring for). Good place to buy surveyors levels is at EngineerSupply. For example, say you want to reference how low a manhole top is in a parking lot, so you reference from one end of the parking lot, or say from the door to the building, that way you can make sure that manhole top is lower than the doorway so that water runs to the manhole and not into the doorway flooding your building. A surveyors level is a reference tool to reference from level. Level being a slice of air that's completely level. If you're outside, you have to measure from some reference. So, why not measure from level. Think about it.
Crankshaft-runout measuring tool?
In order to perform a crankshaft run out, you need, A dial indicator, = vernier caliper = .
The calipers are part of the brake system that applies the brake pads to the rotors by means of hydraulic pressure applied from the master cylinder. They have any where from 1 to 4 pistons that squeeze the pads together against the brake rotors creating friction that slows/stops the vehicle.
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The question's categories include "Measuring Tools", and that is where the Calipers originated.
They are a tool for measuring especially spheres and cylinders, and thicknesses of materials. A pair of calipers consists of two similar legs jointed at one end, rather like dividers, and ending at the other in rounded tips that curve round to meet when closed. They do not measure directly as they have no scale, but are used to transfer the dimension to a rule.
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That daft old Ancient of Days painting of a hirsute, naked, giant God measuring the Earth's diameter depicts Him wrongly using dividers, not calipers.... I'm sure God and perhaps the artist would have known better, but the dividers dominate the picture and look suspiciously like the Freemason's badge!
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The modern form consists of an L-shaped bar on whose longer section slides a block with a projecting jaw parallel to the "L" projection on the bar. The jaws are closed gently on the work-piece and the width read on a scale along the instrument's main leg. The slide is usually engraved with a Vernier scale allowing accurate measurements to 1/1000 - inch or 0.01mm; and the device is the Vernier Calipers. Many calipers now have no Vernier scale but instead use a digital rule - and should not be called "verniers" as you often hear!
Should you put WD-40 on a measuring tape once a year?
Not necessary if the tape is kept reasonably clean.
How do I measure 15 grams of tea leaves?
To measure 15 grams of tea leaves, you can use a kitchen scale for accuracy. Place a small bowl or a tea infuser on the scale and tare it to zero. Then, gradually add the tea leaves until the scale reads 15 grams. If you don’t have a scale, you can use a tablespoon, as a general guideline is that one tablespoon of loose tea is approximately 5-7 grams, so you would need about 2 to 3 tablespoons for 15 grams, depending on the type of tea.
Why is a clinical thermometer usually shaken before use?
the thermometer is shaken before it is used because it is