__________ is used for measuring the static pressure exerted on the
wall by a fluid flowing parallel to the wall in a pipeline.
(A) Venturimeter
(B) Pressure gauge
(C) Pitot tube
(D) Orificemeter

1 Answer

Answer :

(C) Pitot tube

Related questions

Description : In a/an __________, the flow rate of fluids is obtained by measuring the difference between the impact and the static pressure. (A) Rotameter (B) Pitot tube (C) Venturimeter (D) Flow nozzle

Last Answer : (B) Pitot tube

Description : The pressure head of a flow meter remains constant for (A) Venturimeter (B) Orificemeter (C) Rotameter (D) Pitot tube

Last Answer : (C) Rotameter

Description : Water flow rate in a pipe of 3.5 metres diameter can be most economically and conveniently measured by a/an (A) Pitot tube (B) Venturimeter (C) Orificemeter (D) Rotameter

Last Answer : (A) Pitot tube

Description : Bernoulli’s equation does not apply to the functioning of a/an (A) Venturimeter (B) Orificemeter (C) pitot tube (D) None of these

Last Answer : (D) None of these

Description : Which of the following can be used for the direct measurement of volumetric flow rate of slurry? (A) Venturimeter (B) Orificemeter (C) Rotameter (D) Pitot tube

Last Answer : (C) Rotameter

Description : The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a (A) Weir (B) Pitot tube (C) Kennison nozzle (D) V-notch

Last Answer : (B) Pitot tube

Description : Venturimeter and orificemeter measures the __________ of the fluid. (A) Pressure (B) Maximum velocity (C) Average velocity (D) Point velocity

Last Answer : (C) Average velocity

Description : Which of the following instrument can be used for measuring speed of a submarine moving in deep sea? (A) Venturimeter (B) Orifice plate (C) Hot wire anemometer (D) Pitot tube

Last Answer : Answer: Option D

Description : Which of the following instrument can be used for measuring speed of an aeroplane? (A) Venturimeter (B) Orifice plate (C) Pitot tube (D) Rotameter

Last Answer : Answer: Option C

Description : Out of the following flow measuring devices, which one incurs themaximum installation cost as well as pressure loss? (A) Flow nozzle (B) Venturimeter (C) Rotameter (D) Orificemeter

Last Answer : (B) Venturimeter

Description : Select the wrong statement pertaining to flow of an incompressible fluid through a Venturimeter. (A) For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal ... than an orificemeter (D) Venturimeter incurs less power loss compared to an equivalent orificemeter

Last Answer : (C) Venturimeter occupies less space than an orificemeter

Description : For the same flow rate of a fluid, the pressure drop is the least for (A) Venturimeter (B) Orificemeter (C) Flow-nozzle (D) Δp is same for all

Last Answer : (A) Venturimeter

Description : Which of the following flow measuring devices is an area meter? (A) Venturimeter (B) Orificemeter (C) Anemometer (D) Rotameter

Last Answer : (D) Rotameter

Description : Which is the most efficient and best for measuring very small flow rate of gases? (A) Venturimeter (B) Orificemeter (C) Rotameter (D) Flow nozzle

Last Answer : (C) Rotameter

Description : Which of the following is used for very accurate measurement of flow of gas at low velocity? (A) Pitot tube (B) Rotameter (C) Segmental orificemeter (D) Hot wire anemometer

Last Answer : (D) Hot wire anemometer

Description : Which of the following statement is wrong? (A) A flow whose streamline is represented by a curve is called two dimensional flow. (B) The total energy of a liquid particle is the sum of potential energy, ... (D) A pitot tube is used to measure the velocity of flow at the required point in a pipe.

Last Answer : Answer: Option C

Description : For a given fluid flow rate, which of the following incurs maximum head loss? (A) Orificemeter (B) Venturimeter (C) Flow nozzle (D) All of them incur the same head loss

Last Answer : (A) Orificemeter

Description : The simple Pitot tube measures the __________ pressure. (A) static (B) Dynamic (C) Total (D) None of these

Last Answer : (C) Total

Description : The pitot static tube does not measure the __________ pressure. (A) Static (B) Total (C) Difference in static & dynamic (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Which is not a variable head meter? (A) Venturimeter (B) Pitot tube (C) Rotameter (D) None of these

Last Answer : (C) Rotameter

Description : Bernoulli's equation is applied to (A) Venturimeter (B) Orifice meter (C) Pitot tube (D) All of these

Last Answer : Answer: Option D

Description : Flow of water in a pipe about 3 metres in diameter can be measured by (A) Orifice plate (B) Venturimeter (C) Rotameter (D) Pitot tube

Last Answer : Answer: Option D

Description : Power loss in an orificemeter is __________ that in a Venturimeter. (A) Less than (B) Same as (C) More than (D) Data insufficient, cannot be predicted

Last Answer : (C) More than

Description : A pitot tube is used to measure the (A) Velocity of flow at the required point in a pipe (B) Pressure difference between two points in a pipe (C) Total pressure of liquid flowing in a pipe (D) Discharge through a pipe

Last Answer : Answer: Option A

Description : The simple Pitot tube does not measure the (A) Static pressure (B) Dynamic pressure (C) Velocity at the stagnation point (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Air velocity in ducts can be measured by using and manometer a) Orifice meter b) Borden gauge c) Pitot tube d) Anemometer

Last Answer : Pitot tube

Description : A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is (A) 5 (B) 14.1 (C) 56.22 (D) 28.2

Last Answer : (D) 28.2

Description : Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation ... (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Last Answer : (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Description : Flow measurement in an open channel is done by a/an (A) Venturimeter (B) Orificemeter (C) Weir (D) Rotameter

Last Answer : (C) Weir

Description : A Venturimeter cannot be used for the direct measurement of (A) Datum difference in the stretch of pipe-flow (B) Pressure difference in the flow through pipeline (C) Friction loss in pipe flow (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Asymptotic conditions is reached, when for a fluid flowing in laminar flow through a long tube (A) Exit-fluid temperature > wall temperature (B) Exit fluid temperature < wall temperature (C) Exit fluid temperature = wall temperature (D) Graetz number > 100

Last Answer : (C) Exit fluid temperature = wall temperature

Description : The best instrument for measuring the velocity of a stream flow is (A) Pitot tube (B) Price's current meter (C) Surface float (D) Sub-surface float

Last Answer : Answer: Option B

Description : The most serious disadvantage of an orificemeter is that (A) It is not very accurate (B) It is very costly (C) Most of the pressure drop is not recoverable (D) It is not suitable for measuring gas flow

Last Answer : (C) Most of the pressure drop is not recoverable

Description : Convective heat transfer co-efficient in case of fluid flowing in tubes is not affected by the tube length/diameter ratio, if the flow is in the __________ zone. (A) Laminar (B) Transition (C) Both 'a' & 'b' (D) Highly turbulent

Last Answer : (D) Highly turbulent

Description : Fluid flow in a/an __________ is an example of pressure flow. (A) Partially filled pipeline (B) Pipe (C) Open channel (D) River

Last Answer : (B) Pipe

Description : Venturimeter is used to (A) Measure the velocity of a flowing liquid (B) Measure the pressure of a flowing liquid (C) Measure the discharge of liquid flowing in a pipe (D) Measure the pressure difference of liquid flowing between two points in a pipe line

Last Answer : Answer: Option C

Description : The pressure of the liquid flowing through the divergent portion of a Venturimeter (A) Remains constant (B) Increases (C) Decreases (D) Depends upon mass of liquid

Last Answer : Answer: Option C

Description : Which of the following instruments require inputs of both pitot and static pressure? a. Airspeed indicator, machmeter and vertical speed indicator b. Airspeed indicator, vertical speed indicator, altimeter c. Airspeed indicator only d. Airspeed indicator and machmeter

Last Answer : d. Airspeed indicator and machmeter

Description : Which of the following instruments require inputs of both pitot and static pressure? a. Airspeed indicator, machmeter and vertical speed indicator b. Airspeed indicator, vertical speed indicator, altimeter c. Airspeed indicator only d. Airspeed indicator and machmeter

Last Answer : d. Airspeed indicator and machmeter

Description : Small pressure differences in liquids is measured using a/an (A) U-tube manometer (B) Inclined tube manometer (C) Pitot tube (D) None of these

Last Answer : (B) Inclined tube manometer

Description : The Prandtl Pitot tube measures the (A) Velocity at a point in the flow (B) Pressure at a point (C) Average flow velocity (D) Pressure difference in pipe flow

Last Answer : (A) Velocity at a point in the flow

Description : Most appropriate instrument for measurement of internal and external diameter of a tube is A. vernier callipers B. micrometer screw gauge C. meter rule D. measuring tape

Last Answer : vernier callipers

Description : Water is flowing at 1 m/sec through a pipe (of 10 cm I.D) with a right angle bend. The force in Newtons exerted on the bend by water is (A) 10 √2π (B) 5π/2 (C) 5 √2π (D) 5π/√2

Last Answer : (B) 5π/2

Description : Bulk of the convective heat transfer resistance from a hot tube surfaceto the fluid flowing in it, is (A) In the central core of the fluid (B) Uniformly distributed throughout the fluid (C) Mainly confined to a thin film of fluid near the surface (D) None of these

Last Answer : (C) Mainly confined to a thin film of fluid near the surface

Description : A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co￾efficient for turbulent flow conditions is proportional to (A) d 0.8 (B) d -0.2 (C) d -1 (D) d -1.8

Last Answer : (B) d -0.2

Description : Pitot tube is used for measurement of (A) Pressure (B) Flow (C) Velocity (D) Discharge

Last Answer : Answer: Option C

Description : What instrument is used to measure atmospheric pressure?  A. Pitot tube  B. Wind vane  C. Barometer  D. Manometer

Last Answer : Barometer

Description : Which of the following is NOT an instrument used to measure pressure?  A. Bourdon tube  B. Pitot tube  C. Aneroid  D. Manometer

Last Answer : Pitot tube

Description : The rate of change of moment of momentum represents the __________ by the fluid. (A) Torque applied (B) Force exerted (C) Work done (D) Power developed

Last Answer : (A) Torque applied

Description : Location of vena-contracta in an orificemeter does not depend upon the (A) Type of orifice (B) Density, viscosity & compressibility of the fluid (C) Ratio of pipe diameter to orifice diameter (D) Pipe roughness

Last Answer : (A) Type of orifice