Which component provides storage and a suction source for the lubrication oil system?

Which component provides storage and a suction source for the lubrication oil system?

• A. Crankcase
• B. Sump
• C. Oil tank
• D. Reservoir

Answer: (B)

The ability to store lubrication oil and supply it to the pump starts with the sump. Located at the bottom of the crankcase, the sump collects oil as it drains from bearings and gears. That collected oil serves as the ready source for the oil pump via its suction line, keeping a steady supply for pressurized circulation through the engine. The crankcase is the housing that surrounds the moving parts, while an oil tank or reservoir is a term you might see in other lubrication layouts (like dry-sump systems). But for the standard setup described, the sump is the component that both stores the oil and provides the suction source for the lubrication system.

The ability to store lubrication oil and supply it to the pump starts with the sump. Located at the bottom of the crankcase, the sump collects oil as it drains from bearings and gears. That collected oil serves as the ready source for the oil pump via its suction line, keeping a steady supply for pressurized circulation through the engine.

The crankcase is the housing that surrounds the moving parts, while an oil tank or reservoir is a term you might see in other lubrication layouts (like dry-sump systems). But for the standard setup described, the sump is the component that both stores the oil and provides the suction source for the lubrication system.