Description : A barometer is kept inside a bell jar. Air is slowly pumped out of the jar. (1) The mercury level starts rising (2) The mercury level starts falling (3) The mercury level does not change (4) The bell jar breaks up
Last Answer : (1) The mercury level starts rising Explanation: As the pump removes the air from the bell jar the pressure obviously reduces around the barometer. The reduction in pressure around the barometer leads it to expand. As the pump removes air from the jar, the mercury level rises.
Last Answer : The mercury level starts rising
Description : In a barometer, mercury is preferred over water because (a) mercury is a good conductor of heat (b) mercury is shining and therefore its level can be read easily (c) mercury is available in pure form (d) mercury has high density and low vapour pressure
Last Answer : Ans:(d)
Description : Mercury is often used in barometer because (A) It is the best liquid (B) The height of barometer will be less (C) Its vapour pressure is so low that it may be neglected (D) Both (B) and (C)
Last Answer : Answer: Option D
Description : What does the rise of mercury in a barometer indicate? -Do You Know?
Last Answer : answer:
Description : What happens to the level of mercury in the barometer tube when it is taken down a coal mine? -Do You Know?
Last Answer : The temperature will increase as one moves down the Earth's crust. and since there is almost very less wind so the warm will be not able to distribute the temp. and moderate it. Hence the Mercury will rise in the barometer tube.
Description : Does the height of the mercury column of barometer increase gradually ?
Last Answer : Answer : As the height of the mercury column of the barometer gradually decreases, the water vapor increases.
Description : If to torricelli had drilled a little hole at the top of the glass tube holding his mercury column what would have happened to his barometer?
Last Answer : He would not have had a barometer. He would have had a glass tube stuck into a bowl of Mercury, with nothing in it. Because once the hole was made the vacuum would be gone and the Mercury would fall back down to the bowl.It takes the vacuum in the tube to create a barometer.
Description : What happens to the level of mercury in the barometer tube when it is taken down a coal mine?
Last Answer : – It rises
Description : What does the rise of mercury in a barometer indicate?
Last Answer : – Fair weather
Description : Rising level of mercury in Barometer in- dicates?
Last Answer : Calm climate
Description : Sudden fall of mercury level in Barometer indicates?
Last Answer : Storm
Last Answer : It rises
Description : Which liquid is used in an aneroid barometer? A. Mercury B. Alcohol C. Water D. None (Answer)
Last Answer : D. None (Answer)
Description : If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water (A) 51 cm (B) 50 cm (C) 52 cm (D) 52.2 cm
Last Answer : Answer: Option A
Description : 1. Which tissue is responsible for the secondary growth? 2. By whom the salary and perquisites of the Prime Minister of India are decided? 3. What happens to the level of mercury in the ... river basin is called Ruhr of India'? 20. During which ruler were Upanishads translated into Persian?
Last Answer : Answer : 1. Cambium 2. Parliament 3. It rises 4. India and China 5. Krishna Deva Raya 6. Generation 7. Dehradun 8. Collenchyma 9. Konkan coast 10. Iltutmish 11. The Ministry is dissolved 12. ... 14. Tapti 15. Aurangzeb 16. Jagdish Bhagwati 17. Hypothalmus 18. The President 19. Damodar 20. Shah Jahan
Description : Which of the places listed would you expect to experience the lower air pressure?
Last Answer : In a hot air balloon high in the sky
Description : What will a barometer do when humid air moves into an area?
Last Answer : Humid air is warm, warm air expands so the barometric pressurewill fall.
Description : The instrument that measures and records the relative humidity of air is – (1) Hydrometer (2) Hygrometer (3) Lactometer (4) Barometer
Last Answer : (2) Hygrometer Explanation: A hygrometer is an instrument used for measuring the moisture content in the environment. Humidity measurement instruments usually rely on measurements of some other ... By calibration and calculation, these measured quantities can lead to a measurement of humidity.
Description : The instrument that measures and records the relative humidity of air is (1) Hydrometer (2) Hygrometer (3) Lactometer (4) Barometer
Last Answer : Hygrometer
Description : Atmospheric pressure is measured with a (a) hydrometer (b) barometer (c) hygrometer (d) altimeter
Last Answer : Ans:(b)
Description : Blood pressure is measured with: (1) Thermometer (2) Barometer (3) Sphygmomanometer (4) Lactometer
Last Answer : (3) Sphygmomanometer Explanation: A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure.
Description : An instrument for measuring blood pressure is called - (1) Barometer (2) Spirometer (3) Sphygmomanometer (4) Haemocytometer
Last Answer : (3) Sphygmomanometer Explanation: A sphygmomanometer or blood pressure meter is a device used to measure blood pressute, composed of an inflatable cuff to restrict blood flow, and a mercury or ... with a stethoscope. The device was invented by Samuel Siegfried Karl Ritter von Basch in 1881.
Description : Blood pressure is measured by (1) Barometer (2) Sphygmanometer (3) Hydrometer (4) Thermometer
Last Answer : (2) Sphygmanometer Explanation: Sphygmomanometeran instrument for measuring blood pressure. It typically consists of an inflatable rubber cuff which is applied to the arm and connected to a column of mercury next to a graduated scale.
Description : Which instrument is used to record Atmospheric pressure? (1) Thermometer (2) Barometer (3) Seismometer (4) Oscilloscope
Last Answer : (2) Barometer Explanation: A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. A barometer using mercury is common. This is often recorded as mm Hg.
Description : Pressure is measured by-----? A. barometer (Answer) B. Voltmeter C. Lactometer
Last Answer : A. barometer (Answer)
Description : An instrument commonly used for the measurement of atmospheric pressure is known as A. Manometer B. Barometer C. Calorimeter D. Potentiometer
Last Answer : Barometer
Description : Barometer is used to measure (A) Velocity of liquid (B) Atmospheric pressure (C) Pressure in pipes and channels (D) Difference of pressure between two points in a pipe
Last Answer : Answer: Option B
Description : Select the correct statement (A) Local atmospheric pressure depends upon elevation of locality only (B) Standard atmospheric pressure is the mean local atmospheric pressure a* sea level ... atmospheric pressure (D) A barometer reads the difference between local and standard atmospheric pressure
Description : Barometer is used to measure (A) Pressure in pipes, channels etc. (B) Atmospheric pressure (C) Very low pressure (D) Difference of pressure between two points
Description : A _______ is used to measure atmospheric pressure. a. Thermometer b. Barometer c. Manometer d. None of the above
Description : Instrument used to measure the absolute pressure of the atmosphere a. galvanometer b. thermometer c. barometer d. pressure gages
Last Answer : barometer
Description : A pressure gage registers 50 psig in a region where the barometer is 14.25 psia. Find absolute pressure in psia, Pa. (Formula; p = patm+ pg) a. 433 kPa b. 443 kPa c. 343 kPa d. None of the above
Last Answer : 443 kPa
Description : What pressure measuring device consists of a coiled hollow tube that tends to straighten out when the tube is subjected to an internal pressure? A. Aneroid B. Manometer C. Bourdon pressure gage D. Barometer
Last Answer : Bourdon pressure gage
Description : What instrument is used to measure atmospheric pressure? A. Pitot tube B. Wind vane C. Barometer D. Manometer
Description : Which one of the following statements is correct? (a) Local atmospheric pressure is always lesser than standard atmospheric pressure (b) Local atmospheric pressure depends upon the elevation of ... sea level (d) A barometer reads the difference between local, and standard atmospheric pressure
Last Answer : (c) Standard atmospheric pressure is the mean atmospheric pressure at sea level
Description : The instrument used to measure pressure (1) Anemometer (2) Aneroid Barometer (3) Hygrometer (4) Thermometer
Last Answer : Aneroid Barometer
Description : Root pressure is measured by (1) Barometer (2) Atmometer (3) Manometer (4) Auxanometer
Last Answer : Auxanometer
Description : An instrument for measuring blood pressure is called (1) Barometer (2) Spirometer (3) Sphygmomanometer (4) Haemocytometer
Last Answer : Sphygmomanometer
Description : What is the normal pressure of air at sea level equal to the pressure of mercury column ?
Last Answer : Normal air pressure at sea level is equal to 75cm mercury column pressure.
Description : Routine maintenance of dry-type transformers should include ____________. A. cleaning the windings, if accessible, with a vacuum cleaner or very low pressure air B. measuring and recording the winding ... . making sure that the units are close to bulkheads or corners to protect them from damage
Last Answer : Answer: A
Description : If you took a hollowed out metal donut, filled it with mercury, and wrapped the donut with an AC conducter, what would happen?
Last Answer : Depends on what metal the donut is made out of.
Description : Where would you expect to find lowest air pressure?
Last Answer : Feel Free to Answer
Description : Where would you expect the air pressure to be greatest in a valley?
Last Answer : At the bottom of the valley!
Description : In cold countries alcohol is preferred to mercury as a thermometric liquid because (a) alcohol is a better conductor of heat (b) alcohol can be coloured and its level seen easily (c) alcohol has a lower freezing point than mercury (d) alcohol is cheaper than mercury
Last Answer : Ans:(c)
Description : Mercury cells for caustic soda manufacture, compared to diaphragm cells (A) Require lower initial investment (B) Require more power (C) Produce lower concentration NaOH (D) None of these
Last Answer : (D) None of these
Description : Viscosity of water in comparison to mercury is (A) Higher (B) Lower (C) Same (D) Higher/lower depending on temperature
Description : The viscosity of water is __________ than that of mercury. (A) Higher (B) Lower (C) Same as (D) None of these
Description : The surface tension of mercury at normal temperature is __________ that of water. (A) Same as (B) Lower than (C) Higher than (D) None of these
Last Answer : Answer: Option C