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WorksheetsPumps Disassembly and Assembly Quiz
Total questions: 30
Worksheet time: 10mins
What is the primary function of a centrifugal pump?
To compress air
To move fluid by converting kinetic energy to pressure energy
To generate electricity
To filter contaminants
Which of the following is NOT a key component of a centrifugal pump?
Impeller
Casing
Piston
Shaft
What is the first step before disassembling a centrifugal pump?
Remove the impeller
Drain the pump casing and isolate the power source
Detach the bearings
Apply lubrication
Which tool is commonly used to remove the impeller from the shaft?
Torque wrench
Bearing puller
Screwdriver
Hammer
What should be done before reassembling the centrifugal pump?
Clean all components thoroughly
Skip the inspection process
Replace all parts, regardless of condition
Use excessive force when aligning components
What is the function of the shaft in a centrifugal pump?
To contain the fluid
To support the casing
To transfer rotational energy to the impeller
To act as a pressure regulator
What should be checked after reassembling a centrifugal pump?
Flow rate, pressure, and temperature
Electrical circuit functionality
Chemical properties of the fluid
Speed of the motor alone
A common cause of excessive noise in a centrifugal pump is:
Misaligned shaft or worn bearings
Too much lubrication
Overuse of gaskets
High pressure in the suction line
If a centrifugal pump has reduced flow, what could be the likely cause?
Worn impeller or clogged suction line
Misaligned casing
Excessive lubrication
Too much torque applied to bolts
What is the purpose of lockout/tagout (LOTO) procedures?
To increase the speed of assembly
To ensure personal safety by isolating the power source
To lubricate moving parts
To clean pump components
What is the main working principle of a vane pump?
Uses a rotating piston to compress fluid
Uses sliding vanes to create variable chambers that move fluid
Uses screws to transfer fluid
Uses a diaphragm to control pressure
What is the function of the cam ring in a vane pump?
It rotates with the vanes
It guides the movement of the vanes
It lubricates the shaft
It seals the end plates
Which component of a vane pump needs regular inspection for wear?
Cam ring
Motor
Piping system
Cooling system
What is the first step before disassembling a vane pump?
Disconnect the power source and drain the fluid
Remove the rotor first
Lubricate the vanes
Skip safety procedures
What tool is used to remove stuck vanes?
Hammer
Vane puller
Wrench
Pliers
Which of the following is a common problem in a vane pump?
Worn vanes causing low flow
Misaligned impeller
High-temperature combustion
Excessive pressure buildup in the cooling system
What is a key maintenance step when reassembling a vane pump?
Apply excessive torque to all bolts
Replace seals and gaskets if damaged
Skip lubrication to avoid contamination
Ignore vanes during inspection
What should be done during operational testing of a vane pump?
Run at full speed immediately
Start at low speed and check for noise or vibration
Skip the testing phase
Over-lubricate the vanes
Which of the following is a symptom of misaligned bearings in a vane pump?
Excessive vibration and noise
Increased fluid flow
Decreased temperature
Improved efficiency
What safety gear should always be worn when handling vane pump disassembly?
Safety goggles, gloves, and steel-toed boots
Sunglasses and sandals
Only a helmet
No safety gear is required
What type of pump is a screw pump?
Positive displacement pump
Centrifugal pump
Reciprocating pump
Jet pump
How does a screw pump move fluid?
Using vanes that slide in and out
By using a rotating impeller
Using helical rotors to push fluid through the casing
By compressing fluid with a piston
Which component must be carefully aligned during reassembly of a screw pump?
Rotor and shaft
Motor housing
Cooling fan
Electrical wiring
What is the primary cause of leakage in a screw pump?
Worn seals or gaskets
High temperature in the impeller
Misaligned vanes
Incorrect coolant mixture
What should be done before disassembling a screw pump?
Drain the fluid and disconnect power
Remove the shaft first
Over-tighten the bolts
Increase pressure inside the casing
What tool is commonly used to remove the rotor from a screw pump?
Bearing puller
Screwdriver
Mallet
File
What should be checked after reassembling a screw pump?
Leakage, alignment, and smooth operation
Motor RPM only
Casing temperature alone
Bolt tightness only
If a screw pump overheats, what could be the cause?
Inadequate lubrication
Excessive suction pressure
Worn impeller vanes
Too much airflow
What is the role of bearings in a screw pump?
Support the shaft and reduce friction
Control flow rate
Regulate suction pressure
Heat the pump casing
During final testing, what indicates a screw pump is working properly?
Smooth operation with no leaks or vibrations
High noise levels and excessive heat
Fluctuating pressure readings
Misaligned rotor and shaft
