Process II Chapter 7

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

The task of visually inspecting flames for pattern/position, fouling, or flame impingement is part of which area of the process technician's responsibilities?

  • Monitoring the combustion air system
  • Monitoring the feedwater system
  • Miscellaneous related boiler duties
  • Monitoring the fuel/burner system (correct)

How do pressure safety valves (PSVs) work?

  • They open gradually as pressure rises above their relief setting and continue to open further as pressure continues to rise.
  • They close automatically whenever pressure rises above their relief setting.
  • They open fully upon reaching their maximum pressure setting, preventing catastrophic pressure failure events to vessels. (correct)
  • They open periodically throughout the day to prevent overpressure situations from developing.

For purchased steam supplies, what is used to protect the site’s steam system from catastrophic failures that might cause a rapid depressurization of both systems?

  • A two-way/isolation valve
  • A breakaway safety valve
  • A one-way/isolation valve (correct)
  • A semi-open filter valve

As steam in the header is used, what is used to supply additional steam to the system?

<p>A steam header pressure controller (D)</p> Signup and view all the answers

The task of sampling/testing boiler continuous blowdown for contaminants falls under which area of the process technician's responsibilities?

<p>Monitoring feedwater system (B)</p> Signup and view all the answers

Why must feedwater pumps maintain a minimum level of discharge pressure?

<p>To prevent damage to the pump’s internal workings (A)</p> Signup and view all the answers

If a “bubble” of steam collapses suddenly, the impact and resulting noise from the energy of water rushing to occupy that space throughout the entire system is called ________.

<p>a steam hammer (A)</p> Signup and view all the answers

Superheated steam with a temperature of 350 degrees Fahrenheit (approximately 175 degrees Celsius) is labeled ________.

<p>medium-pressure steam (D)</p> Signup and view all the answers

Which of the following is used to aid the combustion process in a combustion control system?

<p>A stack flue gas analyzer (A)</p> Signup and view all the answers

According to statistics, when do furnaces experience the most hazardous operating conditions?

<p>When being started up from a “cold” condition (A)</p> Signup and view all the answers

What do all turbines include for quick response in the event of governor failure?

<p>Overspeed trip mechanisms (C)</p> Signup and view all the answers

How does an attemperator function in a pressure-reducing station to reduce the steam temperature difference of the two steam headers?

<p>It injects spray condensate to the steam to reduce the temperature. (C)</p> Signup and view all the answers

What are the U-shaped additions to steam system pipelines that allow for movement in heating and cooling events associated with system startup and shutdown?

<p>Thermal expansion loops (A)</p> Signup and view all the answers

Why are deaerators always located at higher elevations than boiler feedwater pumps in the system?

<p>To help prevent vaporization of the heated water at the pump impeller eye (cavitation) (C)</p> Signup and view all the answers

Besides regional utility companies, what is another potential source of purchased steam?

<p>Cogeneration facility (D)</p> Signup and view all the answers

What device can help process technicians measure the temperature of a stream exiting the trap connected to a condensate return header?

<p>An optical pyrometer (B)</p> Signup and view all the answers

What are the two major water contaminants of concern for boiler operation?

<p>Calcium and magnesium (D)</p> Signup and view all the answers

What is used to separate oxygen and other noncondensable gases from storage tank water for use in a steam system?

<p>A deaerator (D)</p> Signup and view all the answers

The task of checking steam drum level site glasses for clear level indication or leaks is part of which area of the process technician's responsibilities?

<p>Miscellaneous related boiler duties (C)</p> Signup and view all the answers

Besides its primary function of removing oxygen and other noncondensables, what is a function of a deaerator?

<p>To maintain a sufficient suction level for use by the system boiler feedwater pumps (B)</p> Signup and view all the answers

In the event of the total loss of combustion air causing furnace fires to be extinguished, which action should be taken?

<p>Perform emergency boiler shutdown. (A)</p> Signup and view all the answers

What do open steam systems use to transfer steam across an industrial site for various purposes?

<p>Steam headers (C)</p> Signup and view all the answers

What is used for periodically testing condensate stream samples for contamination by impurities?

<p>A reagent (C)</p> Signup and view all the answers

What is steaming-out or steam clearing?

<p>A process that displaces oxygen and other gases from vessels (D)</p> Signup and view all the answers

What can cause inline condensation and excessive trapping in a steam system as a result of missing insulation and jacketing?

<p>Steam line cooling (A)</p> Signup and view all the answers

Flashcards

Capital of France (example flashcard)

Paris

More Like This

Nursing Process II Quiz
8 questions

Nursing Process II Quiz

WealthyGoshenite3898 avatar
WealthyGoshenite3898
Process II Chapter 1
8 questions

Process II Chapter 1

SportyTinWhistle avatar
SportyTinWhistle
Process II Chapter 3
25 questions

Process II Chapter 3

SportyTinWhistle avatar
SportyTinWhistle
Process II Chapter 4
25 questions

Process II Chapter 4

SportyTinWhistle avatar
SportyTinWhistle
Use Quizgecko on...
Browser
Browser