Gear and Heat Exchanger Maintenance Quiz

Which of the following best explains why it is necessary to inspect gear teeth before reassembling a gear pump?

• To verify the pump’s manufacturer

• To check for wear, pitting, or damage that may affect performance

• To ensure the gears fit perfectly in the housing

• To confirm that the gears rotate in opposite directions

If a gear pump is reassembled and exhibits excessive vibration, what should be the FIRST component to inspect?

• Gear alignment and meshing

• Pump casing for cracks

• Bearings for overheating

• Lubrication level

While disassembling a gear pump, a technician uses a gear puller incorrectly, damaging a gear tooth. How will this impact the pump’s function?

• The pump will still function normally but at reduced efficiency

• The pump will overheat due to increased fluid resistance

• The pump may experience irregular flow and noise due to improper meshing

• The damage will only affect the pump’s appearance, not its operation

A gear pump was recently disassembled, cleaned, and reassembled. However, it now fails to generate pressure. What is the most likely cause?

• The pump housing was over-tightened

• The gears were installed in the wrong orientation

• The bearings were not replaced

• The external pipes were not cleaned

Why is it important to follow a cross-pattern when tightening the bolts on the gear pump casing?

• To ensure equal torque across all bolts

• To prevent casing misalignment and potential leaks

• To increase the speed of reassembly

• To improve the appearance of the assembled pump

Why is it important to clean the plates before reassembling the heat exchanger?

• To remove contaminants and ensure efficient heat transfer

• To increase the weight of the exchanger

• To make the gaskets fit loosely

• To improve the appearance of the plates

What is the function of the frame in a plate heat exchanger?

• To hold the plates in place and provide structural support

• To increase heat transfer efficiency

• To direct fluid flow through the plates

• To absorb excess heat

What is the correct procedure for replacing gaskets in a plate heat exchanger?

• Randomly placing gaskets on the plates

• Ensuring proper alignment and securely fitting new gaskets

• Using old gaskets if they look fine

• Placing the gaskets after assembling the plates

How is the final step of reassembly completed in a plate heat exchanger?

• Tightening the compression bolts in a specified sequence

• Placing the plates randomly

• Running the system before securing the plates

• Checking for leaks before tightening bolts

Why is a leak test performed after reassembly?

• To increase system pressure

• To ensure the gaskets are visible

• To detect and prevent leaks before full operation

• To check the weight of the system