Chapter 4 : Steam Boilers and Unfired Pressure Vessels

What are the two main types of pressure vessels?

• Portable and Fixed

• Liquid and Gas

• High and Low Pressure

• Fired and Unfired

Which of the following is a characteristic of fired pressure vessels?

• They are only used for storage.

• They do not use an external heat source.

• They are heated by an external source.

• They are designed to store gases or liquids under pressure without heat.

What is a key hazard associated with pressure vessels?

• Insufficient storage

• Low temperature

• Lack of maintenance

• Overpressure

What can cause thermal stress in pressure vessels?

• Poor design

• Rapid changes in temperature

• Low pressure conditions

• Excessive corrosion

What is required for personnel operating pressure vessels?

• They must be adequately trained and certified.

• They should have a high school diploma.

• They must have experience in unrelated fields.

• No specific training is needed.

What does the 1970 regulation require for pressure vessels?

• They do not require any reporting of incidents.

• They can be built without safety standards.

• They must be registered and licensed.

• They must be operated without any inspections.

Which of the following is NOT a hazard of pressure vessels?

• Low humidity

• Thermal Stress

• Corrosion

• Overpressure

What is the purpose of regular inspections of pressure vessels?

• To increase the pressure inside the vessels.

• To identify and mitigate potential hazards.

• To reduce the cost of operation.

• To ensure they are used for storage only.

What is a common example of an unfired pressure vessel?

• Steam boiler

• Burner

• Heat exchanger

• Storage tank

What is the consequence of overpressure in a pressure vessel?

• It can lead to corrosion.

• It can cause mechanical failure.

• It can result in catastrophic failure or explosion.

• It can improve efficiency.