Cummins ISB and QSB Engine Parts. Based on the Cummins B Series, the ISB engine was launched in 1998 and is available in 4 and 6 inline cylinder models. Design innovations include a 24-valve setup and the Interact electronic engine management system, both contributing to increased fuel efficiency and meeting emission regulations.
From 1920 to 1929, stocks more than quadrupled in value â not because of fundamentals such as corporate production and profits, but rather fueled by rampant speculation. The economic house of cards came to a screeching halt on Black Tuesday, October 29, 1929 when the bubble burst.
Inevitably, these measures would lead the causes of the Great Depression. Although the causes are greatly debated, certain causes are most notable. Causes such as false prosperity, the stock market crash, the banking crisis, unemployment and trade collapse are significant in understanding such a historical event. false prosperity. False Prosperity prior to the Great Depression referred to a false sense of the economy thriving.