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Pumps are the important equipment in Chemical Process Industries. Centrifugal and Positive Displacement pumps are widely used in化学工业for variety of application. This online test module on Pumps will help you to enrich your knowledge about Selection, Application and Operating knowledge on Pumps.

Pump Quiz

是时候采取泵测验的时间来测试您对泵的知识。

API Standard for "Centrifugal Pumps for Petroleum, Heavy Duty Chemical and Gas Industry Services" is

API 674

API 617

API 610

API 618

npsh代表

Negative potential solids handling

Net pressure suction head

净正面吸头

Normal pump suction horsepower

需要启动操作

离心泵

往复泵

Gear Pump

隔膜泵

齿轮泵用于

High Flow Application

泥浆泵送

高粘性应用

高压应用

Plunger Pump is used for

High Flow Application

泥浆泵送

高粘性应用

高压应用

隔膜泵is used for

High Flow Application

泥浆泵送

高粘性应用

高压应用

Need for Relief valve in Reciprocating Pump Discharge is to

控制放电压力

Protect the Pump from Excess Pressure

Reduce the Discharge Pressure

Regulate the Discharge Flow

In this type of Impeller the fluid leaves perpendicular to the pump shaft center line giving high head and low flow rate

Radial Flow

Axial Flow

Mixed Flow

None of the above

泵的特定速度更高

Radial Flow

Axial Flow

Mixed Flow

None of the above

According to Centrifugal Pump Affinity Laws - Flow

Does not Change with respect to Speed

Changes Directly proportional to the Square of the change in Speed

与速度变化的多维数据集成比例的变化

直接变化到速度的变化

Minimum Thermal Flow in Centrifugal Pump is

Point at which highest possible efficiency is achieved

Flow at which the Power consumption of the Pump is Minimum

Operating Point of the Pump

The lowest flow at which the pump can operate without its operation being impaired by the temperature rise o f the pumped liquid

To avoid Cavitation of the pump

净正抽吸头可用必须小于所需的净积极吸头

Net Positive Suction Head Available must be equal to the Net Positive Suction Head Required

Net Positive Suction Head Available must be greater than the Net Positive Suction Head Required

None of the above

In a Centrifugal Pump, Head curve

Will fall for increased flow rates

Starts from zero at zero flow and goes like a trajectory having a Best Efficiency point and then starts falling for increased flow rates

is Simple straight line. Rises with the flow

都不是

离心泵中流体粘度的增加

增加the Efficiency

降低效率

Does not affects the Efficiency

None of the above

随着运行速度的增加，离心泵NPSH要求

增加

Decreases

Remains Unaltered

Can either increase or decrease depending on other parameters

Draining of Shallow pits is done using Sump pump which is a .........

Plunger Pump

Single Stage Vertical Pump

Multi Stage Centrifugal Pump

Peristaltic Pump

The capacity of the Centrifugal Pump is increased by increasing the

Impeller Diameter

Speed

Number of pumps and joining them in Parallel

All of the Above

Pump used for Pumping of Shear sensitive materials is

Plunger Pump

离心泵

渐进式腔泵

真空泵

For Pumping Liquids operating near to their vapor pressure (Eg: Condensate Extraction Pumps in Power Plants ) ......... pump is used.

Vertical Pump

Piston Pump

隔膜泵

离心泵

Most commonly used pump for Boiler feed water pumping application is

单级离心泵

Vertical Pump

Multi Stage Centrifugal Pump

Plunger Pump

Pump which is employed for High Viscous Fuel oil Transfer Application is......

Gear Pump

Plunger Pump

离心泵

Vertical Pump

For pulsation free and precise dispersion of fluids for lubrication applications ....... is installed in the discharge of the lube oil pumps

Accumulator

Relief Valve

限制孔口

都不是

Liquid evaporates when Suction Pressure is ........ Vapor pressure of the liquid at pumping temperature.

Greater than

Less than

等于

都不是

离心泵保持恒定......即使泵送液体的密度也会发生变化。

Head

压力

Flow

All of the Above

一体的齿轮泵用于.........应用

Low Head and High flow

High Head and Low flow

High Head and High Flow

Low Head and Low Flow

在旋转叶片泵中，安装在不同轴上的两个转子将在.......方向上旋转

Same

对面的

For Positive Displacement at Highest RPM .......... is used

Plunger Pump

Piston Pump

Screw Pump

隔膜泵

泵送时，旋转泵可以以较低的操作速度保持更高的体积效率.........液体

高粘稠

Less Viscous

用于计量泵的常用泵是.......

Gear Pump

离心泵

Piston Pump

None of the above

Purpose of Foot Valve....

Installed at Suction side of suction lift pump to avoid flow reversal

安装在排放方面以避免流逆转

Installed to Prevent entry of foreign body to pump through suction pipe

Both (a) and (c)

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