Process 2 Chapter 5

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

Power shortages are commonly handled by ________ electrical service.

  • cancelling
  • disconnecting
  • curtailing (correct)
  • accelerating

Opening sets of opposite contacts by rolling them apart on floor rails is called ________.

  • breaching
  • racking (correct)
  • uncoupling
  • switch-down

In observing system transformers, what might a process technician encounter that requires immediate action?

  • Minor housing enclosure integrity issues
  • Excessive operating temperatures (correct)
  • Circuit breaker trips
  • Unstable motor speeds

Power shortages related to loss of power transmission capabilities are often due to ________.

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

What is a measure of opposition to current flow?

<p>An ohm (D)</p> Signup and view all the answers

Most American industrial sites base their electrical safe work guidelines on ________.

<p>the National Electrical Code (NEC) and National Fire Protection Association (NFPA) 70E (B)</p> Signup and view all the answers

If the primary coil of a transformer has fewer coils of wire than the secondary coil, the voltage induced in the secondary is ________.

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

In which of the following areas of responsibility for electrical systems might a process technician observe excess noise?

<p>System transformers (A)</p> Signup and view all the answers

Alternating current is ________.

<p>the go-to source of power for large systems and equipment (C)</p> Signup and view all the answers

Local utility companies are connected to regional utility systems ________.

<p>as part of a nationwide power grid (C)</p> Signup and view all the answers

What is an important protection for plant electrical systems if system usage exceeds available system power supply?

<p>An under-frequency relay (A)</p> Signup and view all the answers

What is the most common cause of electrical outages?

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

Process technicians should be prepared to take the actions necessary to ________ their electrical supply systems if supply failures occur.

<p>stabilize the operations of (D)</p> Signup and view all the answers

In the context of electric power, what is a grid?

<p>A network of electric power producers, transmission lines, transformers, and users (C)</p> Signup and view all the answers

Where may an uninterruptible power supply (UPS) be used as temporary power backup?

<p>Distributed control system (DCS) computers (A)</p> Signup and view all the answers

Power transformers work by running current through coils where the primary coils are close to the secondary coils to induce a current in the secondary coils by electromagnetism or ________.

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

Why is electrical power considered to be a “just-in-time” commodity?

<p>Because it is generated in real time as it is used (D)</p> Signup and view all the answers

Ideally, all electrical maintenance work is performed on de-energized equipment that is physically isolated through the use of ________.

<p>disconnect equipment that provides an air gap (C)</p> Signup and view all the answers

In which area of responsibility for electrical systems might a process technician observe oil leakage?

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

What must the process technician verify when checking electrical motor status and rotation after maintenance?

<p>The direction of motor rotation (C)</p> Signup and view all the answers

Area power stations produce electrical power ________.

<p>for sale by local utility companies (A)</p> Signup and view all the answers

Which protective relay would protect against the effects of a lightning strike?

<p>An overvoltage relay (A)</p> Signup and view all the answers

Alternating current creates ________ for each cycle.

<p>a sine wave (C)</p> Signup and view all the answers

Where will operating personnel encounter specially shielded metal enclosures?

<p>Motor control panels (B)</p> Signup and view all the answers

An arc-flash is also known as ________.

<p>an electrical fireball (B)</p> Signup and view all the answers

Power shortages related to loss of power station generation capacity are often due to ________.

<p>mechanical issues (A)</p> Signup and view all the answers

Flashcards

Capital of France (example flashcard)

Paris

More Like This

MIST 5750 Chapter 2 Flashcards
19 questions
Process 2 Chapter 6
25 questions

Process 2 Chapter 6

SportyTinWhistle avatar
SportyTinWhistle
Corrections Today, 5e, Chapter 2: Sentencing Process
26 questions
Use Quizgecko on...
Browser
Browser