The engine oil lubrication system consists of ____ gear type pressure pump(s) and _____ gear type engine oil scavenge pump(s).

• A. 1, 4
• B. 4, 1
• C. 2, 1
• D. 4, 2

Answer: (A)

The engine oil lubrication system is designed to ensure proper lubrication and cooling of the engine components. In this system, there is one gear type pressure pump responsible for circulating engine oil through various parts of the engine to maintain optimal operating conditions. The pressure pump's primary function is to create the necessary oil pressure to deliver the oil to the engine components that require lubrication.

In addition to the pressure pump, there are multiple gear type engine oil scavenge pumps. These scavenge pumps are crucial as their role is to collect the oil that has circulated through the engine and return it to the oil tank, ensuring that the system is continuously supplied with oil and preventing any potential for aeration or contamination of the oil.

The configuration of having one pressure pump and four scavenge pumps aligns with the requirements for effective oil management in the engine. The presence of multiple scavenge pumps helps in quickly removing oil from various parts of the engine, thereby enhancing the system's efficiency and keeping the oil clean and at the proper level.

Therefore, understanding the specific numbers of each type of pump in the lubrication system is fundamental for recognizing how the system functions and ensuring the longevity and reliability of the engine.