Lubricating oil for an engine is stored at the bottom of the （）， known as the sump or in a drain tank located beneath the engine.

The fuel oil system for a diesel engine can be considered in two<br/>parts---- the fuel supply and the ()systems A: fuel purification B: fuel combustion C: fuel treatment D: fuel injection

The in the lubricating system draws oil from the oil pan and sends it to all working parts in the engine. A: fuel pump B: oil pump C: diesel pump D: gasoline pump

Dirt in the fuel oil system of a diesel engine can cause （）. A: clogged filters B: poor combustion C: overloading of the diesel D: shock of fuel line

What is the heart of the lubrication system, which is located in the oil pan on the bottom of the engine? And it pulls oil up from the oil pan and makes the engine oil circulate through the engine. A: oil filter B: Screened intake C: oil pump D: oil pressure relief valve