Process II Chapter 4

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What is the most important consideration in choosing the location of a portable compressor?

Ensuring that it is not too close to meeting rooms

Ensuring that adequate power is available

Ensuring that it does not introduce hazardous fumes into the system (correct)

Ensuring that it will not cause noise complaints from nearby residents

What is one of the hazards associated with nitrogen systems?

Asphyxiation (correct)

Fires

Explosions

Overheating

What gas system component is used to remove liquids from gases?

A special piping system

An aerator

A knockout drum or knockout pot (correct)

A filter

What is an example of a gas that comes from an off-site distribution system?

Natural gas (C) Signup and view all the answers

The phase transition of a fluid such as water from liquid to vapor is known as ________.

boiling (A) Signup and view all the answers

Water under atmospheric pressure boils at 212 degrees Fahrenheit. What happens if the pressure is increased?

The boiling point increases. (B) Signup and view all the answers

Which of the following is a process technician's responsibility associated with working with filters and dryers?

Looking for leaks around enclosures (A) Signup and view all the answers

What term refers to the process of putting nitrogen into the vapor space above the liquid in a tank to prevent air leakage?

Blanketing (C) Signup and view all the answers

What are the primary concerns when working with any gas system?

Maintaining proper pressures and ensuring that composition of materials meets appropriate standards (B) Signup and view all the answers

Which of the following fuel gas components has the lowest number of carbon atoms per molecule?

Methane (C) Signup and view all the answers

Which type of air is used for catalyst regeneration?

Plant air (A) Signup and view all the answers

Where does the fuel gas in a fuel system feeding a furnace come from?

A mix of natural gas and refinery off-gas (B) Signup and view all the answers

In addition to double block and bleed trip valves, what are used on the fuel and pilot gas lines during startup and shutdown of the furnace?

Flare lines (B) Signup and view all the answers

For what purpose is breathing air often used?

To assist in a turnaround or maintenance activities in a confined space (B) Signup and view all the answers

Which of the following is a process technician's responsibility associated with working with compressor systems?

Monitoring outlet temperatures (B) Signup and view all the answers

Which of the following is a process technician's responsibility associated with working with nitrogen systems?

Monitor pressure levels (B) Signup and view all the answers

What is a desiccant?

A substance that can adsorb water vapor as the vapor passes through a fixed bed (C) Signup and view all the answers

What ensures the safe and effective isolation of the fuel gas line during normal or emergency shutdown?

Double block and bleed trip valves (D) Signup and view all the answers

Electrical hazards are among the common hazards associated with ________.

compressors and compressor systems (D) Signup and view all the answers

How is natural gas used to maintain constant pressure for the fuel gas system?

By cascading the pressure controller to the flow controller (A) Signup and view all the answers

What is likely to be the most common issue to affect the operation of gas systems?

A change in pressure (A) Signup and view all the answers

High noise levels are one of the common hazards associated with ________.

compressors and compressor systems (A) Signup and view all the answers

Which air system normally has the least-strict quality requirements?

Utility air (B) Signup and view all the answers

Which of the following is a process technician's responsibility associated with working with compressed air systems?

Switching dryers and filters (B) Signup and view all the answers

What is a potential cause of dirt, rust, and scale in the air lines of a gas system?

Failure of screens and/or filters (D) Signup and view all the answers

Capital of France (example flashcard)

Paris