Process II Chapter 2

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Questions and Answers

What term is used to describe the cloudiness caused by particles suspended in water or some other liquid?

  • Back flush
  • Coagulation
  • Turbidity (correct)
  • Influent

What is a sign of significant toxic chlorine gas production?

  • Bright miniature white clouds
  • A sudden drop in room temperature
  • A faint yellowish-green haze (correct)
  • Heavy reddish-brown smoke

Service water systems require process technicians to perform which of the following tasks?

  • Inspect water for foaming.
  • Inspect screens.
  • Monitor clarifiers. (correct)
  • Control disinfection.

What is the term used for the thick mixture formed in pipes and equipment by accumulation of suspended solids?

<p>Sludge (B)</p> Signup and view all the answers

What are the primary means for treating turbidity?

<p>Clarifying and filtering (C)</p> Signup and view all the answers

Which of these water systems requires process technicians to monitor pumps and ensure they will work properly when needed?

<p>Firewater systems (B)</p> Signup and view all the answers

How is firewater derived?

<p>From screened raw water (A)</p> Signup and view all the answers

How might heavy rain result in the loss of feed water?

<p>Low-lying raw water pumps might be submerged. (D)</p> Signup and view all the answers

What is one of the possible hazards related to the task of cleaning screens?

<p>Moving parts (D)</p> Signup and view all the answers

What principle is used to cool water in a cooling tower?

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

What is the most common controlled variable in water systems?

<p>Pressure (B)</p> Signup and view all the answers

Which systems require process technicians to backflush filters as needed?

<p>Service water systems (D)</p> Signup and view all the answers

Which of the following tasks may expose process technicians to the hazard of poisonous snakes?

<p>Monitoring raw water pumps (A)</p> Signup and view all the answers

In water systems, what does the term colloid usually refer to?

<p>Water that contains suspended solids (C)</p> Signup and view all the answers

What is the primary means for preventing fish and other marine life from entering the water intakes of a plant?

<p>Screens (B)</p> Signup and view all the answers

Process technicians are responsible for performing which of the following tasks involving firewater systems?

<p>Monitor pumps to ensure they will work properly when needed. (B)</p> Signup and view all the answers

Process technicians are responsible for performing which of the following tasks involving service water systems?

<p>Monitor clarifiers. (A)</p> Signup and view all the answers

What is used to introduce chlorine gas into water for disinfection?

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

Which kind of water usually is used for wash downs?

<p>Service water (A)</p> Signup and view all the answers

What is one of the possible hazards related to the task of working with clarifiers?

<p>Chemical exposure (C)</p> Signup and view all the answers

What is one of the processes required to produce service water in addition to screening?

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

In a fire water system, what can cause a drop in water pressure?

<p>Activation of a deluge system (A)</p> Signup and view all the answers

What human function uses the concept of latent heat of evaporation?

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

What is typically used to clean water that has already passed through a clarifier?

<p>A sand filter (B)</p> Signup and view all the answers

Why does cooling water require ongoing monitoring and treatment?

<p>Evaporation may cause contaminants in the cooling water to concentrate. (D)</p> Signup and view all the answers

Flashcards

Capital of France (example flashcard)

Paris

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