Watts Bar Senior Reactor Operator Exam: Given the following conditions:  - Unit 1 is operating at...

Question

Given the following conditions:

 - Unit 1 is operating at 100% power when a loss of offsite power occurs.

 - The DGs restore voltage to the Shutdown Boards and the Blackout Relays are sequencing loads back to the boards.

 - A Safety Injection occurs during the blackout sequencing.

Which ONE of the following identifies the events that occur due to the Safety Injection actuation?

AnswerChoose the correct answer.Choose all that apply. Correct Partially correct Incorrect Don't Know

  1. A
    Correct Answer
    Loads already sequenced on will remain on. Timers for equipment not already started will continue to run and the timers for the additional loads to be started due to the Safety injection will start to sequence the loads on.
  2. B
    Correct Answer
    Loads already sequenced on will remain on. The timers for equipment not already started will be reset to zero and the required loads will then be sequenced on.
  3. C
    Correct Answer
    Emergency Feeder breaker connecting the DG to the board will open causing the blackout sequence to restart. The Emergency Feeder breaker will reclose allowing the required loads to sequence on.
  4. D
    Correct Answer
    DG will remain connected to the board but the loads already sequenced on will load shed. Timers for the required loads will be reset to zero and the required loads will then be sequenced on.
0 users answered this question.

Explanation

Try a similar question!
Practice One More

Sorry

Don't know? See answer. Members onlySign up for free to see the answer! Don't know? See answer.
This question does not have an explanation yet.
Or practice a similar question Practice 1 More Question
Try a similar question!
Published on by U.S. Nuclear Regulatory Commission
Silver Author
Favorite

Assign this pod Create New Group You don't have any group to choose from yet. Create your first one!

This pod belongs to a paid product. Group members who receive this pod as an assignment will be asked to purchase the product.
You don't have any group to choose from yet. Create your first one!
1 0 1 Choose a group or create a new one.
1 Name this group.
/ chars.
0 1 2 2 Add your students' emails.

Invite students by entering their email addresses below or distributing the 6-digit alphanumeric Group Code shown after the group is created.

You can enter multiple email addresses separated by commas or new lines.
You can enter multiple email addresses separated by commas or new lines.

The email address belongs to you. You cannot add yourself as a group member. You can preview the assignment email by clicking on the "Send Test Email to Yourself" button below.

Assignment will be sent to

  • x
0 2 3 Name this group.
/ chars.

The email address belongs to you. You cannot add yourself as a group member. You can preview the assignment email by clicking on the "Send Test Email to Yourself" button below.

This group does not have any members. Add new members.

Assignment will be sent to will be added to your group.

  • x
  • x

not joined this group yet.

2 3 4 Preview and assign. A test email has been sent to you. Please check your inbox.
This assignment will be emailed to your students once they join the group via their group invites.
You already assigned this pod to this group.
2 3 4 Preview and assign. A test email has been sent to you. Please check your inbox.
This assignment will be emailed to your students once they join the group via their group invites.
You already assigned this pod to this group.

You have assigned this pod to successfully!

Using their dashboards,students can also enter the Group Code to join this group. This Code expires on .

To receive each student's results by email, please instruct your students to click on "End Practice" once they have completed the pod.

You have created new group

Using their dashboards,students can also enter the Group Code to join this group. This Code expires on .

Share
Add to Draft Pod
You can only add questions to pods that have not been published yet. Add to a new draft pod.
Create New Draft Pod

Title*

Description

Sorry

There was an error creating this pod. Please try again later.

Resend Pending Invites

Pending invites can be resent once per day.

You are resending an invites to students:

    Invites Resent

    You have reinvited students successfully!

    Resend Pending Invites

    Sorry, something went wrong. Try again later, or contact us at info@learningpod.com

    Do you really want to retake this pod?

    This will delete your current answer choices and practice results. If you received this pod as an assignment, your teacher will be notified of the retake.