Front

In aircraft reciprocating engines, the cooling system is essential to prevent ______.

Back

Overheating

Front

What is the primary purpose of lubrication in an engine?

Back

To minimize wear, reduce heat, and improve engine efficiency

Front

Which property of reciprocating engine lubricants maintains proper thickness at various temperatures?

Back

High viscosity index

Front

Reciprocating engine lubricants should have ______ to resist breakdown under high heat conditions.

Back

Thermal stability

Front

What is the purpose of corrosion resistance in reciprocating engine lubricants?

Back

To protect engine parts from rust and oxidation

Front

Which property helps keep the engine clean by suspending contaminants?

Back

Detergent properties

Front

Low carbon formation in reciprocating engine lubricants is important to ______.

Back

Minimize deposits that can harm engine performance

Front

Fill in the blank: The SAE low temperature viscosity measurement at cold temperatures is indicated by the 'Winter' rating, which ranges from 0W to ____.

Back

25W

Front

What does 'Viscosity' measure in engine lubricants?

Back

Resistance to flow

Front

The 'Pour point' of an oil is the ______ temperature at which it will flow.

Back

Lowest