Which of the following statements about snatch blocks is true?

The statement regarding snatch blocks that is true pertains to the tension in the rope and its dependence on the angle at which the rope is positioned. When using a snatch block, the angle of the rope relative to the load can significantly affect the amount of tension experienced throughout the system. As the angle increases, the tension in the rope can increase, which is crucial for rigging scenarios where load control is necessary. This characteristic makes snatch blocks valuable for managing loads effectively in various configurations, allowing for more flexibility and versatility in lifting operations.

Other options imply limitations or disadvantages that aren't accurate. For instance, snatch blocks are not restricted to vertical lifts; they can be used in horizontal and angled lifting situations as well. Their effectiveness can often surpass that of fixed blocks due to their ability to redirect loads and reduce friction, facilitating easier lifting. Additionally, snatch blocks are designed to handle heavy loads, making them suitable for a wide range of rigging applications. Therefore, understanding the dynamics of tension in relation to angle is crucial for proper and safe rigging practices.