Piezometers are used to monitor pore water pressure and are sometimes referred to as pore pressure cells. A glass ball is shot to hit a wall from a point on a smooth floor. Pressure in pipe channels etc. McqMate.com is an educational platform, Which is developed BY STUDENTS, FOR STUDENTS, The only objective of our platform is to assist fellow students in preparing for exams and in their Studies throughout their Academic career. The piezometer, when used for the measurement of pressure in a pipe in which fluid is flowing, must be kept such that the axis of the tube is normal to the direction of flow. AE & JE Mechanical Engg. at a point, Difference of pressure between two points. 
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A bourdon gauge measures the pressure at a point relative to: A simple U tube manometer connected to a pipe in which liquid is flowing with uniform speed will give which kind of pressure? If the height H is found to be 18 cm, determine the air pressure in duct. The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the, In a centrifugal pump, the regulating valve is provided on the, The loss of pressure head in case of laminar flow is proportional to, The velocity of jet of water traveling out of opening in a tank filled with water is proportional to, For the system of the loads shown in bellow figure, the time required for the 6.6 kg load to fall on the edge, is, A glass ball is shot to hit a wall from a point on a smooth floor. The intensity of pressure at the bottom of the tank. Also see manometer. The other end is most often open to the air, in which case the height of the water in the tube above the connection is the pressure head in inches or feet. Multiple effect evaporation accounts for, 10. The loss of pressure head in case of laminar flow is proportional to, 3. For high pressures the tube may be connected to a mercury column in which case the pressure head is expressed in inches of mercury. The vacuum pressure can be measured with the help of a piezometer tube. The height to which the ball will rebound after striking the floor is, 7. For soil applications, the tube is connected to a permeable tip which is then buried in or driven into the soil. Copyright 2022 All Rights Reserved by McqMate, Electronics and Communication Engineering, Electronics and Telecommunication Engineering, Hydraulics and Fluid Mechanics solved MCQs, A Piezometer tube is used only for measuring, The pressure measured with the help of a piezometer tube is in, The pressure of a liquid measured with the help of a piezometer tube is. D. Difference of pressure between two points, Piezometer is a bad choice to measure high pressure since. Please place orders online rather than by phone to allow us to manage order volumes. A piezometer is either a device used to measure liquid pressure in a system by measuring the height to which a column of the liquid rises against gravity, or a device which measures the pressure (more precisely, the piezometric head) of groundwater at a specific point. PDF's for offline use. We take free online Practice/Mock test for exam preparation. Each MCQ is open for further discussion on discussion page. All the services offered by McqMate are free. A B C D E F G H I J K L M N O P Q R S T U V W Y Z. The pressure intensity at a point in a fluid is given 3.925 N/cm2. This type of manometer can only be used for measuring small and moderate pressures because as the pressure to be measured increases, the corresponding length of the piezometer tube required for measurement also increases. the diameter of the tube must be at least 12 mm. A piezometer is used to measure the pressure of liquid pressure, i.e., increase in the pressure when there is an increase in the depth of the liquid. For an open rectangular channel, the Froude number at critical flow is. The height of the liquid in the tube above any point in the fluid indicates the pressure of the liquid at that point. Since the other end of the tube is open to the atmosphere, the pressure obtained using the piezometer tube is gauge pressure. Differential manometer is used to measure, The critical depth meter is used to measure. In pressure measuring equipment, which of the following is NOT used? Differential manometers are the devices used for measuring the difference of pressure between: Differential pressure head measured by mercury oil differential manometer (specific gravity of oil is 1.0) equivalent to a 600 mm difference of mercury levels will be nearly: Select the incorrect statement in case of use of Piezometer for pressure measurement in pipes? Privacy Policy Return Policy, College of Engineering & Computer Science |. 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A flow in which the quantity of liquid flowing per second is constant, is called __________ flow. The ratio of pressures between the points A and B located at depths 0.5 m and 2.0 m respectively below a constant level of water in a tank is, The pressure of a liquid measured with the help of a piezometer tube is, Pascal's law states that pressure at a point is equal in all directions, in a, An open tank contains 1m deep water with 50cm depth of oil of specific gravity 0.8 above it. A rectangular open channel having bed width 2 m is laid at a bed slope - 0.0009 and carries a flow of 10 cumec. Also, to reduce the surface tension and capillarity effects. What is its normal depth of flow? A glass U-tube opens on both sides, with one armof radius r and the other arm of radius 4r is being filledwith water from the thinner arm at a rate such that therise in height of water in the thinner arm is h m/s. Get Instant Access to 1000+ FREE Docs, Videos & Tests, Select a course to view your unattempted tests, Gauge Pressure, Absolute Pressure, and Pressure Measurement, Definitions of Absolute Pressure, Gauge Pressure, Atmospheric Pressure and Vacuum Pressure. SSC JE ME Previous Paper 3 (Held on: 27 Sep 2019 Evening), SSC JE: General Intelligence & Reasoning Free Mock Test, Copyright 2014-2022 Testbook Edu Solutions Pvt. Calculate therate of flow of water. The equation relating the pre-and post-hydraulic jump flow depths for rectangular channel is given by Which of the following instruments is used to measure flow on the application of Bernoulli's theorem? Assume standard nomenclature of the terms used above. 
A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. 
Your Mobile number and Email id will not be published. In a U tube manometer filled with mercury andmeasuring the pressure of air in a container, thedifference in height of the two columns is 12 cm. Since the other end of the tube is open to the atmosphere, the pressure obtained using the piezometer tube is gauge pressure. Ifthe specific weight of mercury is 13.6 kg/liter, thenwhat is the pressure measured by the manometer? In a centrifugal pump, the regulating valve is provided on the, 2. Office of Water Programs | 2019 All Rights Reserved. If one were to use a piezometer to measure fluid pressure, which of the following disadvantages are they subject to? Piezometer is the simplest form of manometer used for, One end of this manometer is connected to the point where the pressure is to be measured and theother end is open to the atmosphere, As one end is open to atmosphere so it cant be used for measuring the gas pressure, Gas pressure cannot be measured by means of piezometers because a gas forms no free atmosphere surface and it cant be used when large pressures in the lighter liquid are to be measured. A water filled manometer connected on one side to a duct through which pressurized air is flowing and is open to the atmosphere on the other side. D. To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height, According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to, D. Weight of the fluid displaced by the body, Related Questions on Hydraulics and Fluid Mechanics in ME, More Related Questions on Hydraulics and Fluid Mechanics in ME. The tube is kept vertical and its other end is open to the atmosphere. Assume standard nomenclature of the terms used above. We provide you study material i.e. Why synchronous motor is not self starting. Difference of pressure between two points, 1. (g = 10 m/sec2). An instrument used to measure the pressure head in a pipe, tank, or soil. Building Technology and Architectural Planning, Estimation, Costing and Valuation Engineering, Railways, Airports, Docks and Harbour Engineering, Design of Reinforced Cement Concrete Elements, Difference of pressure between two points. If the angle between the applied force and the direction of motion of a body, is between 90 and 180, the work done, is called, 9. The most popular form of gradually varied flow equation is expressed as Can you explain this answer? The height to which the ball will rebound after striking the floor is, A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is, If the angle between the applied force and the direction of motion of a body, is between 90 and 180, the work done, is called, The rate of heat transfer is a product of overall heat transfer co-efficient, the difference in temperature and the. 
If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall is, 6. The velocity of jet of water traveling out of opening in a tank filled with water is proportional to, 4. D). For pipes and tanks, it usually consists of a small pipe or tube. Find the corresponding height of the fluid when the fluid has specific gravity 1. When the length of the tube becomes longer, it cannot be handled conveniently. What is the qualification of uniform flow? A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is, 8. One end is connected or tapped through the wall of the pipe or tank being measured. Correct answer is option 'A'. We appreciate your patience and understanding. Piezometers are used to measure _________. In the figure, the pressure at the point above atmospheric pressure is: hA is the height of the liquid column in the piezometer tube. As of July 1, 2022, OWP will only send paper test booklets and bubble sheets upon request and for a fee. We will do our best to process your orders and respond to your requests. Exams Previous Year Papers Mock Test (90+ Papers), All hand-operated pumps for lifting water from tube wells are, The most economic cross-section is the one, Equation for critical flow by using usual terms is given by. If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall is, A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. In this case, the piezometer measures the pore pressure of water in the soil. 
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