How many high voltage jumper cables are found on M-7 cars?

Answer: C — 5

M-7 cars are equipped with five high voltage jumper cables. These cables are essential for connecting electrical systems between multiple train cars, enabling the transfer of electrical power and control signals. The correct number is based on the design and functionality of the M-7, which incorporates multiple electrical components requiring a reliable and robust connection for smooth operation. Having five high voltage jumper cables ensures that the various systems within the train, such as traction control and passenger amenities, can work seamlessly together. This configuration allows for adequate redundancy and reliability in the event of a failure, maintaining safety and operational efficiency across the fleet.