Compound steam engine: choose the correct statement about advantages/design features. Context: Compounding expands steam in multiple cylinders to improve economy and reduce temperature range per cylinder. Select the correct statement for a compound steam engine.

Difficulty: Easy

• For the same power and economy, the cost of the engine is more than that of a simple steam engine.
• The forces in working parts are increased since forces are distributed over more parts.
• The ratio of expansion is reduced, thus reducing the length of stroke.
• The temperature range per cylinder is increased, increasing condensation.