15 the U-tube Manometer Has Which of the Following Advantages

The main advantages of using open tube manometer are- Accuracy and sensitivity of measurement Simple and low-cost construction Use in many fields to measure various variables like pressure flow rate of fluid etc. U tube manometer.

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It is simple in construction.

. The advantage of the inclined manometer is that the differential reading scales along the tube can be made large compared to a vertical manometer for a given pressure difference hence improving the accuracy in reading the scale. A U tube is connected to the discharge of a forced draft fan the. Inverted U-tube differential manometer will be used for measuring the vacuum pressure.

Its high density is disadvantageous for low differential pressure measurements. Let us consider that inverted U tube differential manometer is connected with two points in two pipes as displayed here in following figure. Unequal leg u tube manometer cistern manometer u tube manometer.

Manometers Advantages and Limitations. It is not suitable for measuring negative pressures. As there are no cams gears or levers to operate in the manometer the readings obtained are accurate.

The main difference between a U-tube manometer and a well type manometer is that the U-tube is substituted by a large well such that the variation in the level in the well will be negligible and instead of measuring a differential height a single height in the remaining column is measured. This instrument consists of a glass tube having a bend in U shape. Open end will have a higher liquid level than the connection to the fan With an axial flow fan the air flow.

Piezometers cannot be employed when large pressures in the lighter liquids are to be measured since this would require very long tubes which cannot be handled conveniently. The manometer one of the earliest pressure measur ing instruments when used properly is very accurate. Gas pressures cannot be measured with.

Piezometers can measure gauge pressures only. The incline allows for a smaller resolution. This manometric fluid has a greater density than the liquidgas in a pipe or vessel.

Inverted U-tube differential manometer will have one inverted U-tube contained with light liquid. The manometer is filled with mercury specific gravity 136 and the liquid above the mercury i SolutionInn. The device installation and maintenance is known to be quite expensive.

The manometer is suitable for low-pressure applications. The manometer has no moving parts sub ject to wear age or fatigue. The principle of the manometer is that the pressure to be measured is applied to one side of the tube producing a movement of liquid as shown in figure above.

The height of the inclined leg is equal to Lsin a where L is the length of measuring fluid in the incline and a is the angle. Air fluids and very low pressures equal. It consist of a large diameter vessel with one side connected to very small size.

Of the various manometric fluids used mercury has many advantages like low vapour pressure non-sticky nature and wide temperature range from -20 degree Celsius to 350 degree Celsius. Limitation A manometer does not have to be calibrated against any. Measure positive and negative pressure.

The scale that is attached to the inclined tube are more sensibly then scale in vertical form that are in U-tube manometerdisadvantage is that it is costly and tough to handle. It is used to measure gauge pressure and are the primary instruments used in the workshop for calibration. It has a low cost.

Answer to A simple U-tube manometer is installed across an orifice meter. The U-tube type manometer is a primary basic standard of pressure measurement. While it can be adapted to measure very small pressure differences it can not be used conveniently for large pressure differences - although it is possible to connect a number of manometers in series and to use mercury as the manometric fluid to improve the range.

It has good accuracy. The inclined tube manometer has a large diameter well on one side of the U and an inclined or angled leg on the other side. It does not have to be calibrated against any standard the pressure difference can be calculated from the first principles.

Pressure measurements are accomplished by balancing a vertical head of indicating fluid with the pressure to be measured. In the U tube manometer we use different fluids to create manometric column height. The main disadvantage of the open tube manometers is-.

What are the advantages and disadvantages for inclined tube manometer. NIST recognizes the U tube manometer as a primary standard due to its inherent accuracy and simplicity of operation. It has simple operation and construction.

The pressure difference between point A and B is given by p A ρ 1 gh 1 - ρ 2 gL 2 sinθ - ρ 3 gh 3 p B. The simplest form of manometer consists of a U-shaped glass tube containing liquid. It has better sensitivity.

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