Texas CNG(Compressed Natural Gas) Driver Practice

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the Texas CNG Driver Test. Study with flashcards and multiple choice questions, each question has hints and detailed explanations. Get ready for your CNG certification exam in Texas!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Which of the following is NOT a part of a CNG system?

  1. Cylinders

  2. Heating elements

  3. Compressors

  4. Relief devices

The correct answer is: Heating elements

In a compressed natural gas (CNG) system, the components primarily focus on storing, compressing, and safely releasing the stored gas. The cylinders are used to contain the high-pressure natural gas; compressors are crucial for increasing the pressure of the natural gas so that it can be stored in the cylinders; and relief devices are safety mechanisms that prevent over-pressurization by allowing gas to escape if necessary. Heating elements, on the other hand, are not standard components of a CNG system. The purpose of a CNG system is to store and utilize gas at ambient temperatures, and there typically is no need for heating elements in this context. Their absence from this list highlights that they do not play a role in the core functionality of a CNG system.