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Which one of the following pairs is not correctly matched?
- a)Centrifugal pump : 1. Rotating blades in the rotor create centrifugalhead
- b)Reciprocating pump : 2. Positive displacement pump
- c)Turbine pump : 3. Centrifugal pump with guide vanes
- d)Gear pump : 4. Gear teeth work like rotating blades to createcentrifugal head
Correct answer is option 'D'. Can you explain this answer?
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Which one of the following pairs is not correctly matched?a)Centrifuga...
Ans. (d) External diffuser is creating centrifugal head.
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Which one of the following pairs is not correctly matched?a)Centrifuga...
Explanation:
The correct answer is option D, which states that a gear pump works like rotating blades to create centrifugal head. This answer is incorrect because a gear pump is not a centrifugal pump and does not create centrifugal head.
Centrifugal Pump:
- A centrifugal pump is a type of rotodynamic pump that uses a rotating impeller to add energy to the fluid being pumped.
- The rotating blades in the rotor create centrifugal head by imparting kinetic energy to the fluid.
- The fluid enters the pump axially through the impeller eye and is accelerated radially outward by the rotating impeller blades.
- This acceleration creates a pressure difference, causing the fluid to move from the impeller eye to the outer periphery of the impeller, where it exits the pump.
Reciprocating Pump:
- A reciprocating pump is a type of positive displacement pump that uses a piston or plunger to move fluid.
- It works by creating a pressure difference through the reciprocating motion of the piston or plunger.
- As the piston or plunger moves, it draws fluid into the pump on the suction stroke and then pushes it out on the discharge stroke.
- This creates a pulsating flow of fluid, which is characteristic of reciprocating pumps.
Turbine Pump:
- A turbine pump is a type of centrifugal pump that uses guide vanes to direct the flow of fluid.
- It is similar to a centrifugal pump, but the addition of guide vanes helps to increase the efficiency and control the flow direction.
- The fluid enters the pump axially and is accelerated by the rotating impeller.
- The guide vanes then redirect the flow radially outward, generating centrifugal head before the fluid exits the pump.
Gear Pump:
- A gear pump is a type of positive displacement pump that uses meshing gear teeth to move fluid.
- It works by creating a pressure difference through the meshing action of the gear teeth.
- As the gears rotate, fluid is trapped in the spaces between the teeth and carried from the suction side to the discharge side of the pump.
- This creates a continuous flow of fluid, which is characteristic of gear pumps.
In summary, a gear pump is not a centrifugal pump and does not create centrifugal head. Therefore, option D is not correctly matched.
The correct answer is option D, which states that a gear pump works like rotating blades to create centrifugal head. This answer is incorrect because a gear pump is not a centrifugal pump and does not create centrifugal head.
Centrifugal Pump:
- A centrifugal pump is a type of rotodynamic pump that uses a rotating impeller to add energy to the fluid being pumped.
- The rotating blades in the rotor create centrifugal head by imparting kinetic energy to the fluid.
- The fluid enters the pump axially through the impeller eye and is accelerated radially outward by the rotating impeller blades.
- This acceleration creates a pressure difference, causing the fluid to move from the impeller eye to the outer periphery of the impeller, where it exits the pump.
Reciprocating Pump:
- A reciprocating pump is a type of positive displacement pump that uses a piston or plunger to move fluid.
- It works by creating a pressure difference through the reciprocating motion of the piston or plunger.
- As the piston or plunger moves, it draws fluid into the pump on the suction stroke and then pushes it out on the discharge stroke.
- This creates a pulsating flow of fluid, which is characteristic of reciprocating pumps.
Turbine Pump:
- A turbine pump is a type of centrifugal pump that uses guide vanes to direct the flow of fluid.
- It is similar to a centrifugal pump, but the addition of guide vanes helps to increase the efficiency and control the flow direction.
- The fluid enters the pump axially and is accelerated by the rotating impeller.
- The guide vanes then redirect the flow radially outward, generating centrifugal head before the fluid exits the pump.
Gear Pump:
- A gear pump is a type of positive displacement pump that uses meshing gear teeth to move fluid.
- It works by creating a pressure difference through the meshing action of the gear teeth.
- As the gears rotate, fluid is trapped in the spaces between the teeth and carried from the suction side to the discharge side of the pump.
- This creates a continuous flow of fluid, which is characteristic of gear pumps.
In summary, a gear pump is not a centrifugal pump and does not create centrifugal head. Therefore, option D is not correctly matched.
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Which one of the following pairs is not correctly matched?a)Centrifugal pump : 1. Rotating blades in the rotor create centrifugalheadb)Reciprocating pump : 2. Positive displacement pumpc)Turbine pump : 3. Centrifugal pump with guide vanesd)Gear pump : 4. Gear teeth work like rotating blades to createcentrifugal headCorrect answer is option 'D'. Can you explain this answer?
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Which one of the following pairs is not correctly matched?a)Centrifugal pump : 1. Rotating blades in the rotor create centrifugalheadb)Reciprocating pump : 2. Positive displacement pumpc)Turbine pump : 3. Centrifugal pump with guide vanesd)Gear pump : 4. Gear teeth work like rotating blades to createcentrifugal headCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which one of the following pairs is not correctly matched?a)Centrifugal pump : 1. Rotating blades in the rotor create centrifugalheadb)Reciprocating pump : 2. Positive displacement pumpc)Turbine pump : 3. Centrifugal pump with guide vanesd)Gear pump : 4. Gear teeth work like rotating blades to createcentrifugal headCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following pairs is not correctly matched?a)Centrifugal pump : 1. Rotating blades in the rotor create centrifugalheadb)Reciprocating pump : 2. Positive displacement pumpc)Turbine pump : 3. Centrifugal pump with guide vanesd)Gear pump : 4. Gear teeth work like rotating blades to createcentrifugal headCorrect answer is option 'D'. Can you explain this answer?.
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