Manometer Questions

A manometer is a specially designed device used for calculating liquid pressure. It is classified into:

1. Well Type Manometer
2. Enlarged Leg Manometer
3. Inclined Tube Manometer
4. U-tube Manometer

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The liquid pressure is given by the formula: P = ρgh

Where,

P – liquid pressure

ρ – density of the liquid

g – acceleration due to gravity

h – depth

Mercury is the reference liquid used in a U-tube manometer.

Important Manometer Questions with Answers

1. Can a manometer measure lower ranges of liquid pressure?

Yes, a manometer can measure lower ranges of liquid pressure.

2. ______ is the formula to calculate the pressure applied by a liquid column.

1. P = h+g+d
2. P = h+g-d
3. P = hgd
4. P = hg/d

Answer: c) P = hgd

Explanation: P = hgd is the formula to calculate the pressure applied by a liquid column.

3. What are the moving parts involved in a U-tube manometer?

There are no moving parts involved in the manometer. It is a simple device that is easy to operate and maintain.

4. Which state of matter a manometer cannot measure?

1. Liquid
2. Fluid
3. Solid
4. Gas

Answer: c) Gas

Explanation: Solid-state of matter cannot be measured by a manometer.

5. The reference liquid in a U-tube manometer is _____.

1. Phenol
2. Water
3. Mercury
4. Petrol

Answer: c) Mercury

Explanation: Mercury is the reference liquid filled in the U-tube manometer.

6. What liquid is used in manometer.

Mercury, water, and alcohol are some of the common manometer fluids.

7. Small pressure differences are measured using which type of manometer?

Small pressure differences are measured using the inclined tube manometer.

8. Which is the instrument used to measure blood pressure?

1. Well Type Manometer
2. Enlarged Leg Manometer
3. Inclined Tube Manometer
4. Sphygmomanometer

Answer: d) Sphygmomanometer

Explanation: A sphygmomanometer is a device used to measure blood pressure.

9. What are the three categories of pressure.

Pressure is categorised into:

• Absolute pressure
• Gauge pressure
• Differential pressure

10. Atmospheric pressure is measured using a device called ______.

1. Voltameter
2. Ammeter
3. Micrometer
4. Barometer

Answer: d) Barometer

Explanation: A barometer is a device used for measuring atmospheric pressure.

Practice Questions

1. What is pressure?
2. What is a manometer?
3. What is the formula to calculate the pressure?
4. Define barometer
5. Explain the liquid pressure calculation formula.

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