MCC-NH Gas Fitters Practice Exam

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Prepare for the MCC-NH Gas Fitters Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

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What should be sealed around a gas pipe that passes through an exterior wall?

Air
Insects, rodents, and water
Ventilation
Gas leaks

The correct answer is: Insects, rodents, and water

Sealing around a gas pipe that passes through an exterior wall is essential to prevent the intrusion of insects, rodents, and water into the building. This sealing helps to maintain the integrity of the building envelope and prevents pests from accessing the interior, which could lead to contamination or damage. Additionally, water infiltration can create issues like corrosion, mold growth, and damage to insulation and structural components, while ensuring that the space remains energy-efficient. Proper sealing is crucial for safety and building maintenance, and it is an important practice in construction and gas fitting to ensure that all penetrations through exterior walls are adequately protected. This helps to create a barrier against various environmental elements that can compromise the building's comfort and safety.