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A density test is a test in which glass fragments are floated to establish if they are from the same source.
performance guarantee test
A tensile test is performed by stretching the material until it breaks. An impact test is performed by applying a sudden shock to the material so that it fractures.
speed as in da drug? it would only come up if they were looking for it in a drug screen test not a preg test.
Test charge is always a test charge. The electric field does not depend on the test charge. Usually we assume the test charge to be one coulomb positive charge. Though you make it half, it would never affect the field around the primary charge
The pens should work, but differences in the paper over time may give a false indication that the bill is counterfeit. Bank employees are trained to identify these older bills.
No, a real 1950 twenty dollar bill should not be marked as fake by a counterfeit pen since the technology used in the pen is designed to detect specific features found in modern counterfeit bills. The ink on a legitimate 1950 bill may react differently with the pen due to its age, but it should not be mistaken as fake solely based on the pen test.
you do a lie test (auto)
Answer truthfully on the lie detector test.
1. watermark 2. security thread 3. the paper 4. the iodine pen test 5. the size of the bill
Look for the one with more detail.
When he points to the symbol, do the opposite one. Easy.
You have to re do it. It is not that bad.
Because the 1800 Draped Bust dollar has 5 major known varieties, unfortunately it has no group characteristics that would give it away as a counterfeit. You can check some basic things such as weight (26.96g) and the magnet test, also look at the edge for a seam and check the surface for granularity. Show it to other collectors and dealers and see what they think. But the best thing is send it to one of the top grading services.
No, at least not in the US. There was, however, a $4 gold coin that was produced for a very short time as a test piece.
click on the person and he should talk about what they all do and then give you the test.
Pass the lie dedector test