James Watt and Samuel Slater made important contributions to the Industrial Revolution. Which of the following statements is not true of Watt? Responses He built a piston-driven steam engine. He built a piston-driven steam engine. He produced steam engines that could power all kinds of machines. He produced steam engines that could power all kinds of machines. He exported steam technology to the United States. He exported steam technology to the United States. He gave a huge boost to Britain's Industrial Revolution.