ONLINE QUIZ on “RECIPROCATING PUMPS” with E-Certificate

Organizer : Department of Mechanical Engineering, Sankar Polytechnic College(Autonomous), Sankar Nagar

About the Quiz 

▪️No registration fee for participants.
▪️Anybody can participate.
▪️Only 100 participants will be entertained per day on FCFS basis.
▪️>E-Certificates will be provided immediately to all the participants who secure 40% of marks or above mailed to their registered E-mail ID

 

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________is a device used to lift any liquid from a lower level to a higher level.*

5 points

Pump

Compressor

Turbine

Engine

In pump, the mechanical energy is converted  into  pressure energy (Hydraulic energy).*

5 points

True

False

The positive displacement pumps are mainly used for ___________*

5 points

transfer the fluids

pressure system

increase the velocity

None of these

The non-positive displacement pumps are mainly used to ___________*

5 points

transfer the fluids

pressure system

increase the velocity

None of these

Reciprocating pump is a __________*

5 points

Positive displacement pump

Non-Positive displacement pump

Negative displacement pump

None of these

When the liquid pressure is acting on only one face of the piston then the pump is known as a ________ reciprocating pump.*

5 points

Double acting

Single acting

Multiple acting

None of these

When the liquid pressure is acting on both face of the piston then the pump is known as a ________ reciprocating pump.*

5 points

Double acting

Single acting

Multiple acting

None of these

In reciprocating pump, the reciprocating motion of the piston or plunger is obtained by the __________*

5 points

Gear mechanism

Lever mechanism

Quick return mechanism

Crank and Connecting rod mechanism

The reciprocating pump is run by an electric motor or an engine.*

5 points

True

False

During the suction stroke of the reciprocating pump,_________*

5 points

Vacuum is created

liquid is compressed

Pressure is constant

Velocity is constant

In single acting reciprocating pump, the theoretical discharge (Q)(in cubic metre per second) is equal to______*

5 points

3ALN/60

2ALN/60

ALN/60

4ALN/60

In double acting reciprocating pump, the theoretical discharge (Q)(in cubic metre per second) is equal to______*

5 points

3ALN/60

2ALN/60

ALN/60

4ALN/60

The difference between the _____________is known as Slip.*

5 points

theoretical discharge & Actual discharge

theoretical velocity & actual velocity

theoretical work done & actual work done

None of the these

In reciprocating pump, the piston is reciprocating inside the cylinder with a _____________*

5 points

Rectilinear motion

Circular motion

Spherical motion

Simple harmonic motion

In a reciprocating pump, the pressure head variation due to the acceleration and retardation of the piston is called as___________*

5 points

Pressure head

Velocity head

Datum head

Acceleration head

In reciprocating pump, Total lift=_____________*

5 points

Suction head – Delivery head

Delivery head – Suction head

Suction head + Delivery head

Suction head x Delivery head

In a reciprocating pump, If the vacuum pressure exceeds ______ m of water, the water commences to vapourise and cavities of dissolved gases and vapours are formed.*

5 points

6.5

7.5

5.5

4.5

________are fitted to the suction and delivery pipes, very close to the cylinder, to reduce the acceleration head.*

5 points

Couplings

Rivets

Air compressor

Air Vessels

Which of the following is advantage of a reciprocating pump over centrifugal pump?*

5 points

Priming is not necessary.

Starting torque is less.

Suitable for working against high head and fluctuating discharge.

All of these

Which of the following is disadvantage of a reciprocating pump over centrifugal pump?*

5 points

Complicated construction

Initial cost is high.

Discharge is pulsating.

All of these.

 

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