Which of the following fuels are classified as wide cut fuels?

Wide cut fuels refer to a category of fuels that have a broad range of boiling points, allowing them to be produced from various components during the refining process. This characteristic enables these fuels to maintain effectiveness over a wider temperature range, which is crucial for certain applications, especially in aviation.

The combination of JP-4 and Jet B fuels is classified as wide cut fuels. JP-4 is a mixture of approximately 50% kerosene and 50% gasoline, resulting in a lower freezing point and providing advantages in cold weather operations. Jet B, on the other hand, is a kerosene-type fuel, although it has a lower flash point than Jet A. These fuels are designed for optimal performance in varying temperature scenarios and specific aircraft requirements.

Other options include Jet A and Jet A-1, which are more refined and have narrower boiling ranges, making them less versatile compared to wide cut fuels like JP-4 and Jet B. Similarly, while JP-8 is a military specification fuel and has similar characteristics to Jet A, it is not classified as a wide cut fuel in the same manner. Therefore, JP-4 and Jet B are indeed the standard examples of wide cut fuels in aviation.