What are the primary causes of fuel starvation during flight?

The primary causes of fuel starvation during flight are indeed related to blocked lines, faulty pumps, or empty tanks. Fuel starvation occurs when the engine does not receive adequate fuel to operate, which can lead to engine failure or power loss. Blocked lines can be a result of debris or ice formation that obstructs fuel flow, preventing the engine from getting the necessary fuel supply. Faulty pumps can fail to deliver fuel due to mechanical issues or electrical failures, leading to an insufficient flow to the engine. Additionally, if the fuel tanks are empty, this would obviously result in a lack of fuel available for the engine, ultimately causing starvation. Each of these factors directly impacts the engine’s ability to receive fuel during flight, making them the primary concerns one must consider regarding fuel starvation.

Other choices provided may contribute to ineffective fuel management or operational errors, but they do not directly cause fuel starvation as defined in this context.