Name two common materials used for the tubes in a shell-and-tube heat exchanger.

What is the purpose of baffles inside a shell-and-tube heat exchanger?

Describe the procedure for removing the tube bundle from a shell-and-tube heat exchanger.

Why is it important to loosen bolts in a cross-pattern when removing the end caps?

What is the purpose of performing a pressure test after reassembling a shell-and-tube heat exchanger?

Name two common problems encountered in shell-and-tube heat exchangers and their causes.

Why is it important to replace gaskets during reassembly?

How does a plate-type heat exchanger differ from a shell-and-tube heat exchanger?

What is the function of gaskets in a plate-type heat exchanger?

Explain why compression bolts are used in plate-type heat exchangers.

Describe the process of loosening the compression bolts when disassembling a plate-type heat exchanger.

What are two common cleaning methods used for plate-type heat exchangers?

Why should the plates be stacked in the correct order during reassembly?

What safety precautions should be followed before disassembling a plate-type heat exchanger?

How is a leak test performed after reassembling a plate-type heat exchanger?

What is the function of a centrifugal air compressor?

Name two key components of a centrifugal air compressor.

Describe the function of the impeller in a centrifugal air compressor.

Why is it necessary to depressurize the system before disassembling a centrifugal air compressor?

What tool is commonly used to remove bearings from a centrifugal air compressor?

What is the purpose of the volute in a centrifugal air compressor?

Describe the steps for reassembling the impeller in a centrifugal air compressor.

What could cause high vibration in a centrifugal air compressor, and how can it be resolved?

How do the male and female rotors in a rotary screw air compressor work together?

What is the purpose of the oil separator in a rotary screw air compressor?

Name two safety precautions to follow before disassembling a rotary screw air compressor.

What are the main steps involved in removing the rotors from a rotary screw air compressor?

How can an operator detect an air leak after reassembling a rotary screw air compressor?

Why is it important to monitor oil temperature in a rotary screw air compressor?