What pyrotechnic effects are produced by the AN-MK13 signal?

The AN-MK13 signal produces pyrotechnic effects that include smoke and illumination, making it useful for signaling and visual communication purposes. This signal is designed to generate a bright light and a considerable amount of colored smoke, which can be utilized for marking targets, signaling for help, or indicating positions during operations. The illumination effect can help ensure visibility in low-light conditions, while the smoke can serve as a visual marker or concealment.

The other options may describe effects associated with different types of munitions or pyrotechnics but do not accurately represent the specific capabilities of the AN-MK13 signal. For example, while explosion and fragmentation are common effects of more destructive ordinance, they are not relevant to a signaling device like the AN-MK13. Similarly, flame and gas release might occur in other pyrotechnic devices but are not characteristic of this particular signal, and noise and vibration are not primary functions of signaling flares. Thus, the correct description highlights the intended use of the AN-MK13 as a signaling tool through smoke and illumination.