Tag: fluids
Questions Related to fluids
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gets elevated
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gets depressed
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remains static
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None
Aneroid barometers are popular for their light weight and size which increases its portability. The Aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule). The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring which is corrugated in form of a diaphragm. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer. When atmospheric pressure increases, the spring in upper end of box gets depressed and the reading is thus visible due to the elastic potential energy stored in the spring due to compression which pushes the diaphragm inside.
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Depresses the rod
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Elevates the rod
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Protects the diaphragm from collapsing
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Decreases the atmospheric pressure
Aneroid barometers are popular for their light weight and size which increases its portability. The Aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule). The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring which is corrugated in form of a diaphragm. Small changes in external air pressure cause the cell to expand or contract.
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Fortin
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Simple
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Aneroid
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None
Aneroid barometers are popular for their light weight and size which increases its portability. The Aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule). The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring which is corrugated in form of a diaphragm. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer. Since it is calibrated directly for the atmospheric pressure, no prior adjustments are required to be made before its usage.
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Bulges out
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Bulges in
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Get depressed
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None
Aneroid barometers are popular for their light weight and size which increases its portability. The Aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule). The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring which is corrugated in form of a diaphragm. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer. When atmospheric pressure increases, the spring in upper end of box gets depressed and the reading is thus visible due to the elastic potential energy stored in the spring due to compression.
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It is portable
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It is heavy in weight
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It cannot be fixed in any plane
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All the above
Aneroid barometers are those barometers that do not use liquid to tell the atmospheric pressure. They are popular because of the portability due to their small weight and size.The Aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule). The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer.
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Aneroid barometer
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Fortin's barometer
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Simple barometer
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None
The Aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule). The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring. Since the instrument calibrated directly to read the atmospheric pressure, small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer.
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Aneroid barometer
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Fortin barometer
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Simple barometer
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All the above
Aneroid barometers are popular for their light weight and size which increases its portability. The Aneroid barometer uses a small, flexible metal box called an aneroid cell (capsule). The evacuated capsule (or usually several capsules, stacked to add up their movements) is prevented from collapsing by a strong spring. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer.
Mark the correct statement about Aneroid barometer.
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It does not need any prior adjustment for reading atmospheric pressure.
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It is light in weight
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It is portable in nature
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All the above
The measurement of altitude is known as
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Altimetry
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Altimeter
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barometry
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None
The instrument used to measure the altitude is known as altimeter whereas altimetry is defined as the measurement of altitude.
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It does not affect the barometric height
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It gives the correct reading
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It is easily seen while taking the reading
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All the above
The surface of mercury is shiny and opaque. Therefore it is easily seen while taking the observation. The vapor pressure of mercury is negligible. Hence the barometric height is not affected. The mercury neither sticks nor wets the glass tube.