The cost of the engine, for the same power and economy, is more than that of a simple steam engine.

The forces in the working parts are increased as the 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, with corresponding increase in condensation.

slow speed engine

medium speed steam engine

high speed steam engine

none of these

steam jet

centrifugal fan

chimney

both (a) and (b)

indicated power

brake power

efficiency

pressure of steam

higher

lower

normal

none of these