A block that is the lower movable block in a block and tackle configuration is called what?

• A. Fixed block
• B. Traveling block
• C. Anchor block
• D. Support block

Answer: (B)

In a block and tackle system, the lower movable block is known as the traveling block. This component is essential for the mechanical advantage provided by the block and tackle arrangement, as it moves along with the load being lifted. The traveling block works together with the fixed block, which is secured in place, to efficiently lift heavy loads by distributing the weight and reducing the force required to move them.

The designation of this block as “traveling” reflects its ability to move upward and downward with the load, in contrast to the fixed block which remains stationary during operation. This functionality is critical for achieving the desired lifting capability and ease of movement in various applications, making the traveling block a key part of the system.