A type of heat motor that works on mechanical power by using steam as its fluid is called a steam engine. Steam engines impacted transport services as they impacted the industrial revolution.
The correct answer is:
Option B. It allowed trains to carry large loads.
This can be explained as:
- Steam engines played a major role in the Industrial revolution.
- Steam engines have been operated in trains, crafts, manufactories, mines, locomotion etc.
- It functions on the vapour generated from the boiling hot water that operates the piston present in the machine.
- Because of steam engines, trains were able to lug heavy cargoes even at larger lengths.
- This was indeed a benefit over the land transport services as the land conveyances could not carry bulky and large goods.
Therefore, trains were able to carry heavy loads.
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