A tackle is “two blocked” when the blocks are().
A、equally sharing the load
B、jammed together
C、as far apart as possible
D、rove to the highest mechanical advantage
A、equally sharing the load
B、jammed together
C、as far apart as possible
D、rove to the highest mechanical advantage
A、blocks have been overhauled B、hauling parts of two tackles are attached C、hauling part leads through the movable block D、hauling part leads through the standing block
A、blocks have been overhauled B、hauling parts of two tackles are attached C、hauling part leads through the movable block D、hauling part leads through the standing block
A、blocks have been overhauled B、hauling parts of two tackles are attached C、hauling part leads through the movable block D、hauling part leads through the standing block