Here is a list of the most Frequently Asked Questions (FAQ) from PDHengineer users about online courses. If you are unable to locate the answer to your questions on this page, please contact us using the Live Support Chat link at the bottom right side of the page, email us at, or call toll-free 1-877-PDHengineer (1-877-734-3644).

You may retake the quiz as many times as necessary to pass it at no additional charge for a period of two years after the date of course purchase.

All courses and webinars that you have purchased can be accessed using the My Account link at the top of any page of our website. Once logged in, select My Courses and you will see the list of courses and webinars. Click the title of the appropriate course to access the course material, quiz, and certificate of completion.

To view the course material, take quizzes, or download certificates of completion, use the My Account link at the top of any page. Once you have logged in, look for the My Courses link in the center of the page. There you will see a list of all courses purchases. Click the title to view the course material, quizzes and certificate of completion.

Taking online courses for credit on is easy.

  • Browse course topics and select a course.
  • Set up a user account and log in to pay for the course.
  • Review the course material online anytime at your leisure.
  • Take the short online quiz whenever you are ready. Your quiz will be automatically graded and you will be able to instantly see the results.
  • Upon passing the quiz, you can immediately print a certificate of completion for your records.

For step-by-step instructions on taking a course for PDH credits, see How It Works.

Quizzes contain multiple-choice questions with one possible correct answer. A small percentage of the questions may be true/false.

Quizzes are not timed. After purchasing the course, you can view and print the quiz; and you can take as long as you like to complete it.

The length of the quiz varies according to the course length. A 1-PDH course contains at least 10 quiz questions. Longer courses typically have 5 questions per PDH of course content. The number of questions for each quiz is specified on the course overview page for the course. Quizzes are made up of multiple-choice and true/false questions.

You have two years from the date of course purchase to take and pass the quiz for PDH credits. Courses not completed within that time frame are ineligible for credit. PDH credit is not awarded for courses until the quiz has been passed.

All of your courses, certificates of completion, and purchase history can be found by using the “My Account” link at the top of any page. Simply click “My Account” and you will be taken to a page that summarizes all of your activity.

In the center of the page, the first link is “My Courses – View courses purchased, take quizzes, and print certificates of completion.” Click this link to view a list of all courses you have purchased. Then, click the course title to view the Course Progress Page that contains links to the course document, quiz, and certificate of completion. If you are unable to complete the course and quiz in one sitting, you can come back to the Course Progress Page at any time to continue.

A score of at least 70% is required to pass the quiz.