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Q: Why is the compass needle kept in a closed glass vessel Answers for class 6?
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Why is compass needle kept in a closed glass vessel?

To keep things from getting lost ... remember that the very first compasses were NOT closed, they consisted of a bowl of water with a load-stone (fastened to a piece of wood) floating - even earlier one just had a piece of string tied to the lode stone.


What is the purpose of a boat compass?

The needle on a compass always points true north. In marine use, a compass can be used to adjust the path of a vessel so it stays on course. A compass can also help one detour from a charted course in order to avoid a storm or other hazard.


When giving an injection to determine if the needle is in a blood vessel you would?

Aspirate


What is a blind ended vessel?

A blind-ended vessel is a vessel that is closed at one end, or has a 'dead end'. They can be found in the lymphatic system, for example.


Why does a gas fills completely in a vessel?

Because gas molecules easily diffuse and fill completely a closed vessel.


What happens when charcoal is burned in a closed vessel?

it turned URL


Will humidity increase with air pressure increase in a closed vessel?

The relative humidity in a closed vessel will not change due to pressure. Assuming water is the fluid, the relative humidity will stabilize to 100%.


In which direction should the vessel's green sidelight be shining?

With your vessel's bow pointed at zero or 360 on your compass, the green light should be directed at 135 degrees.


How would you determine whether the risk of collision exist between your vessel and another vessel?

The standard answer is constant bearing. As soon as a another vessel is sighted at sea, you take a compass bearing on it, and you keep on taking compass bearings. If the bearing does not change, you are on a collision course. If it's on your port side, do nothing. If it's on your starboard side, give way by changing speed or course.


What is open vessel and closed vessel in chemical reaction engineering?

open -open vessel means dispersion is same at inlet & outlet.there is bulk mixing. Eg: Tubular reactors.


What happens to a blood vessel when it is cut and then stitched closed?

it might have internal bleeding


What is a batch culture?

Øculture incubated in a closed vessel with a single batch of medium