Question

5 multiple choice 1 point which oil has the lowest viscosity when the engine is at operating temperature? 5w - 20 5w - 30 0w - 40 10w - 30 6 multiple choice 1 point how many rotations of the crankshaft to complete all four strokes of the four stroke cycle? 1 4 3 2

Explanation:

For the first question: The lower the second number in the oil viscosity grade (e.g., 20 in 5W - 20), the lower the viscosity at operating temperature.
For the second question: In a four - stroke cycle engine, two crankshaft rotations complete the four strokes (intake, compression, power, exhaust).

Answer:

1. 5W - 20
2. 2