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2. Air gap (plumbing) - Wikipedia

   en.wikipedia.org/wiki/Air_gap_(plumbing)

   An air gap, as related to the plumbing trade, is the unobstructed vertical space between the water outlet and the flood level of a fixture. [1] Air gaps of appropriate design are legally required by water health and safety regulations in many countries. An air gap is the simplest form of a backflow prevention device.

3. Exhaust manifold - Wikipedia

   en.wikipedia.org/wiki/Exhaust_manifold

   When the exhaust valve opens, the high pressure exhaust gas escapes into the exhaust manifold or header, creating an "exhaust pulse" comprising three main parts: The high-pressure head is created by the large pressure difference between the exhaust in the combustion chamber and the atmospheric pressure outside of the exhaust system

4. Ventilation (architecture) - Wikipedia

   en.wikipedia.org/wiki/Ventilation_(architecture)

   An axial belt-drive exhaust fan serving an underground car park. This exhaust fan's operation is interlocked with the concentration of contaminants emitted by internal combustion engines. Mechanical ventilation of buildings and structures can be achieved by the use of the following techniques: Whole-house ventilation; Mixing ventilation

5. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   The vent can also provide air to fill any vacuum created. The key to a functional island fixture vent is that the top elbow must be at least as high as the "flood level" (the peak possible drain water level in the sink), allowing it to serve as a de facto vacuum breaker preventing the loop from becoming a siphon for an overfilled sink, as from ...

6. Cylinder head porting - Wikipedia

   en.wikipedia.org/wiki/Cylinder_head_porting

   Note the height and straightness of the ports, particularly the exhaust port on the left. This design is based on a cylinder head casting purpose-built for racing modifications. The head is supplied with small ports with ample material everywhere for porting specialists to shape to their requirements without having to weld on additional metal.

7. 12 Easy & Elegant Christmas Morning Breakfasts - AOL

   www.aol.com/12-easy-elegant-christmas-morning...

   Tips For Making The Best Christmas Morning Breakfast. Keep pancakes warm in the oven if cooking for a crowd.Place pancakes on a baking sheet, on a wire rack, at around 200F in the oven until you ...

8. Delaware judge rejects Musk's $56 billion Tesla pay - again - AOL

   www.aol.com/news/delaware-judge-rejects-request...

   WILMINGTON, Delaware (Reuters) -A Delaware judge ruled on Monday that Tesla CEO Elon Musk still is not entitled to receive a $56 billion compensation package despite shareholders of the electric ...

9. Savings interest rates today: Put your money to work with ...

   www.aol.com/finance/savings-interest-rates-today...

   The FDIC is an independent government agency charged with maintaining stability and public confidence in the U.S. financial system and providing insurance on consumer deposit accounts.