Which of the following is the treatment of water pollution? (1) Bag house filter (2) Windrow composting (3) Venturi scrubber (4) Reverse Osmosis

Which of the following is the treatment of water pollution? (1) Bag house filter (2) Windrow composting (3) Venturi scrubber (4) Reverse Osmosis
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(4) Reverse Osmosis Explanation: Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water. It can remove many types of dissolved and suspended species from water, including bacteria, and is used in both industrial processes and the production of potable water. It is most commonly known for its use in drinking water purification form.
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Which of the following is the treatment of water pollution? (1) Bag house filter (2) Windrow composting (3) Venturi scrubber (4) Reverse Osmosis

Description : Which of the following is the treatment of water pollution? (1) Bag house filter (2) Windrow composting (3) Venturi scrubber (4) Reverse Osmosis

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Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an (A) Air filter (B) Bag filter (C) Venturi scrubber (D) Hydrocyclones

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Description : I currently haul reverse-osmosis filtered water from the grocery store to my house in 1-gallon glass jugs. Is there a better way?

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Description : Should the leaves go in the composting bin or in a paper bag that cost $1 or so each?

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What are the benefits of reverse osmosis systems in purifying water?

Description : What are the benefits of reverse osmosis systems in purifying water?

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Description : How much does a reverse osmosis water system cost?

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Last Answer : (B) Reverse osmosis

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We have a Reverse Osmosis and every few years we have to replace the bladder in the tank...(rest in details)

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Mention a large scale use of the phenomenon called reverse osmosis

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Last Answer : Ans:- In desalination of sea water. 

The washing machine works on the principle of (1) Dialysis (2) Diffusion (3) Reverse osmosis (4) Centrifugation

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Differentiate between reverse osmosis membrane process with ultra filtration membrane

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Principle of reverse osmosis process

Description : Principle of reverse osmosis process

Last Answer : When two solutions of unequal concentrations are separated by a semi permeable membrane and if a hydrostatic pressure in excess of osmotic pressure is applied on the concentrate side, the solvent is forced to move ... ranges of these membranes are pH of 2 to 12 and temperatures of 0°C to 40°C.

Venturi meter is used to measure water, if

Description : Venturi meter is used to measure water, if

Last Answer : Ans.Water flow from the pipe

Most important method for calculating discharge for planning a water supply project, is (A) Velocity area method (B) Weir or spillway method (C) Use of venturi-meter (D) Using power plant consumption

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Last Answer : (A) Velocity area method

The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the (A) Venturi atomiser (B) Gravity settling chamber (C) Electro-static precipitator (D) Cyclone separator

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Which of the following equipments is not used for liquid dispersion? (A) Wetted wall towers (B) Packed towers (C) Venturi scrubbers (D) Agitated vessels

Description : Which of the following equipments is not used for liquid dispersion? (A) Wetted wall towers (B) Packed towers (C) Venturi scrubbers (D) Agitated vessels

Last Answer : (D) Agitated vessels

Permanent pressure loss in a well designed Venturimeter is about __________ percent of the venturi differential. (A) 1 (B) 10 (C) 30 (D) 50

Description : Permanent pressure loss in a well designed Venturimeter is about __________ percent of the venturi differential. (A) 1 (B) 10 (C) 30 (D) 50

Last Answer : (A) 1

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 to that leaving the Venturimeter(B) Discharge of fluid through a Venturimeter depends upon the gagedifference irrespective of the orientation of Venturimeter(C) Venturimeter occupies less space than an orificemeter(D) Venturimeter incurs less power loss compared to an equivalentorificemeter

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

m and n are monsoon duration factor and catchment factor respectively. If P is yearly rainfall in cm, runoff can be calculated by (A) Velocity area method (B) Weir or spillway method (C) Use of venturi-meter (D) Using power plant consumption

Description : m and n are monsoon duration factor and catchment factor respectively. If P is yearly rainfall in  cm, runoff can be calculated by  (A) Velocity area method  (B) Weir or spillway method  (C) Use of venturi-meter  (D) Using power plant consumption 

Last Answer : (A) Velocity area method 

Of the following oxygen administration devices, which has the advantage of providing high oxygen concentration? a) Non-rebreather mask The non-rebreather mask provides high oxygen concentration but is usually poor fitting. b) Venturi mask The Venturi mask provides low levels of supplemental oxygen. c) Catheter The catheter is an inexpensive device that provides a variable fraction of inspired oxygen and may cause gastric distention. d) Face tent A face tent provides a fairly accurate fraction of inspired oxygen, but is bulky and uncomfortable. It would not be the device of choice to provide high oxygen concentration.

Description : Of the following oxygen administration devices, which has the advantage of providing high oxygen concentration? a) Non-rebreather mask The non-rebreather mask provides high oxygen concentration but is ... and uncomfortable. It would not be the device of choice to provide high oxygen concentration.

Last Answer : a) Non-rebreather mask The non-rebreather mask provides high oxygen concentration but is usually poor fitting.

13. A venturi flume is a flumed structure constructed across a channel by restricting its width. A) True B) False

Description : 13. A venturi flume is a flumed structure constructed across a channel by restricting its width. A) True B) False

Last Answer : A

The coefficient of venturi-flume, generally, lies between (A) 0.3 to 0.45 (B) 0.50 to 0.75 (C) 0.75 to 0.95 (D) 0.95 to 1.0

Description : The coefficient of venturi-flume, generally, lies between (A) 0.3 to 0.45 (B) 0.50 to 0.75 (C) 0.75 to 0.95 (D) 0.95 to 1.0

Last Answer : Answer: Option D

In a venturi-flume, the flow takes place at (A) Atmospheric pressure (B) Gauge pressure (C) Absolute pressure (D) None of these

Description : In a venturi-flume, the flow takes place at (A) Atmospheric pressure (B) Gauge pressure (C) Absolute pressure (D) None of these

Last Answer : Answer: Option A

A venturi-flume is used to measure (A) Pressure of liquid (B) Discharge of liquid (C) Pressure difference between two points in a channel (D) Pressure difference between two points in a pipe

Description : A venturi-flume is used to measure (A) Pressure of liquid (B) Discharge of liquid (C) Pressure difference between two points in a channel (D) Pressure difference between two points in a pipe

Last Answer : Answer: Option B

Compare orifice plate with venturi tube with reference to: (i) Working principle (ii) Construction (iii) Cost (iv) Pressure loss

Description : Compare orifice plate with venturi tube with reference to: (i) Working principle (ii) Construction (iii) Cost (iv) Pressure loss

Last Answer : Venturi Flow Meter vs Orifice Plate Meter

Explain with neat labelled diagram measurement of flow using venturi meter

Description : Explain with neat labelled diagram measurement of flow using venturi meter

Last Answer : Explanation: It is a primary element of differential pressure Flow meters. 1) It consists of a straight inlet section, a converging conical inlet section, a cylindrical throat and diverging recovery ... abruptly, so permanent pressure loss or energy loss is very low as compared to orifice plate.

The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, are related to the

Description : The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, are related to the upstream pressure and velocity, respectively, as follows: (A) Pressure is lower but ... velocity is lower (C) Both pressure and velocity are lower (D) Pressure and velocity are identical

Last Answer : The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, are related to the upstream pressure and velocity, respectively, as follows: (A) Pressure is lower but ... lower (C) Both pressure and velocity are lower (D) Pressure and velocity are identical