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Reach

? is the distance between the cup of the top hook and the cup of the hoist hook when it is at its lower limit of travel.

pocket wheel

A ? is a sprocket-like wheel with chain-link pockets.

Crossover

A ? is the single turn of rope at the end of one drum wrap in which the rope winds over the previous wrap to begin a new wrap.

slip clutch

A ? prevents the hoist from lifting a load that is over its rated capacity.

True

A limit switch automatically deenergizes a hoist when the hoisting line reaches either end of its travel limit.

False

A power-operated hoist uses a ratchet-type mechanism to lock a drive in place when not actively hoisting or lowering.

pneumatic

A(n) ? hoist is a power-operated hoist that uses an air motor to provide an input torque to a gear drive.

True

The entire first layer of rope should never be unwound from a smooth drum.

False

Worm gear drives normally require braking or locking mechanisms to prevent reverse rotation

False

Electric hoist systems create high pressure with a hydraulic pump, which is driven by either an electric motor or a combustion engine.

True

Frequent inspections are conducted by an operator before each use, which is typically daily.

True

Hook drift is the continued travel of a hoist hook caused by insufficient motor braking.

False

Most lever-operated hoists use ratchets to transfer power and prevent reverse rotation.

True

Removed brake linings are inspected for deformation by laying a straightedge across the center and checking for gaps as the straightedge is rotated.

False

Rope should be overwound from left to right if the rope is anchored on the left and the rope is a left-lay rope.

True

Slip clutches are typically set at about 110% of the rated capacity of a hoist.

False

Torque is lateral force.