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gate questions on centrifugal pump|gate fluid mechanics questions

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gate questions on centrifugal pump|gate fluid mechanics questions

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gate questions on centrifugal pump|gate fluid mechanics questions

gate questions on centrifugal pump|gate fluid mechanics questions : vendor Dec 18, 2024 · GATE Fluid Mechanics and Hydraulics Questions Question 13: If a centrifugal pump has an impeller speed of N (in rpm) discharge Q (in m 3 /s) and the total head H (in m), the expression for the specific speed N s of the pump … Operating principle of Centrifugal pump. p>Centrifugal pumps generate flow or lift a fluid from a lower to a higher level. A centrifugal pump converts the rotational energy of a motor into energy in a moving fluid. The impeller and the casing, both of which are located in the pump's wet end, are the two main components in charge of this task. .
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Multistage pumps are defined as pumps in which the fluid flows through several impellers fitted in series.. The head of a single-stage centrifugal pump is largely governed by the type of impeller and the circumferential speed. If the rotational speed cannot be increased due to other operating conditions and a larger impeller diameter would lead to very low specific speeds resulting in .

Centrifugal pumps are widely used in various industries for fluid transportation. Understanding the principles and operation of centrifugal pumps is crucial for engineers and technicians working in the field of fluid mechanics and hydraulics. To test your knowledge and enhance your understanding of centrifugal pumps, here are some gate questions on centrifugal pump along with detailed solutions.

A centrifugal pump delivers water at the rate of 0.22 m 3 /s from a reservoir at ground level to another reservoir at a height \(H\), through a vertical pipe of 0.2 m diameter. Both the reservoirs are open to atmosphere.

Centrifugal Pump MCQ Questions

1. Which of the following is not a type of centrifugal pump?

A) Axial Flow Pump

B) Radial Flow Pump

C) Mixed Flow Pump

D) Reciprocating Pump

**Answer: D) Reciprocating Pump**

2. The head developed by a centrifugal pump is directly proportional to:

A) Pump speed

B) Pump diameter

C) Pump efficiency

D) Pump power

**Answer: A) Pump speed**

3. The specific speed of a centrifugal pump is a function of:

A) Flow rate

B) Head

C) Pump speed

D) All of the above

**Answer: D) All of the above**

4. Cavitation in a centrifugal pump is caused by:

A) High suction pressure

B) Low suction pressure

C) High discharge pressure

D) Low discharge pressure

**Answer: B) Low suction pressure**

Gate Fluid Mechanics Questions

5. A centrifugal pump operates at a speed of 1500 rpm and delivers a flow rate of 500 L/min. If the pump efficiency is 80%, calculate the power developed by the pump. (Take the density of the fluid as 1000 kg/m³ and acceleration due to gravity as 9.81 m/s²)

**Solution:**

Given, Pump efficiency (η) = 80%

Flow rate (Q) = 500 L/min = 0.5 m³/min

Density (ρ) = 1000 kg/m³

Acceleration due to gravity (g) = 9.81 m/s²

Power (P) = (ρ * g * Q * H) / η

Where H is the head developed by the pump.

6. Draw a schematic diagram of a centrifugal pump and label its main components.

7. A centrifugal pump is required to lift water from a sump at a depth of 5 meters and deliver it to a tank located at a height of 15 meters. Calculate the total head developed by the pump.

**Solution:**

Total head (H) = Suction head + Delivery head

Suction head = 5 meters

Delivery head = 15 meters

Total head = 5 + 15 = 20 meters

Get Centrifugal Pump Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. Download these Free Centrifugal Pump MCQ Quiz Pdf and prepare for your …

Only 3 left in stock - order soon. Goulds 1BF20734, Centrifugal Pump, Series .

gate questions on centrifugal pump|gate fluid mechanics questions
gate questions on centrifugal pump|gate fluid mechanics questions.
gate questions on centrifugal pump|gate fluid mechanics questions
gate questions on centrifugal pump|gate fluid mechanics questions.
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