May the Force . . .
Which of the following is part of lift planning?
a. Compilation of a list of needed equipment
b. Consideration of the overall operation
c Evaluation of the difficulty of the lift
d. Evaluation of the skill levels of the personnel involved
e. All are a part of lift planning
e. All are a part of lift planning
Yarn is twisted into ? .
a. fibers
b. rope
c. strands
c. strands
Chain sling legs may be shortened with ? for this use by the chain manufacturer or a qualified person.
a. approved hardware
b. bolts
c. makeshift fasteners
d. shackles
a. approved hardware
The ? is the horizontal distance from the pivot point of a crane to a point below the hoist hook.
a. boom angle
b. boom length
c. center of gravity
d. load radius
d. load radius
? are used between the load and the rigging components.
a. Cribbing
b. Softeners
c. Straps
d. Tag-lines
b. Softeners
Block loading is the total amount of ? experienced by a block while in a certain arrangement.
a. dynamic force
b. immovable force
c. static force
d. stationary force
d. stationary force
The ? is the ratio of the strength of a bent rope to its nominal strength rating.
a. bend ratio
b. bending efficiency
c. termination efficiency
d. turnback ratio
b. bending efficiency
Multiple-leg chain slings are also known as ? slings.
a. basket
b. bridle
c. choker
d. vertical
b. bridle
Upon inspection, if a deficiency constitutes a safety hazard, the crane ? .
a. can be modified and used with caution
b. can be used as normal
c. must be taken out of service until the deficiency has been corrected
d. rated capacity must be reduced by 1/2
c. must be taken out of service until the deficiency has been corrected
Personnel can easily rotate or hold a hoisted load by applying relatively light force on a ? .
a. lever dolly
b. pallet jack
c. roller
d. tag line
d. tag line
When lifting a load with block and tackle, ? overcomes friction in the pulleys and the load begins to rise.
a. lead-line force
b. live-line force
c. pulley friction
d. static force
a. lead-line force
The ? is the ratio of the strength of a bent rope to its nominal strength rating.
a. bend ratio
b. bending efficiency
c. termination efficiency
d. turnback ratio
b. bending efficiency
Chain is particularly suited for ? temperature applications where other types of sling materials can not be used.
a. cold
b. high
c. low
d. none of the above
b. high
A civil engineer would be called upon to evaluate which of the following?
a. If additional blocking, matting, or other support is needed
b. If the ground has sufficient load bearing capacity
c. Both a. and b.
d. None of the above, civil engineers are not qualified to determine issues related to cranes and lifting.
c. Both a. and b.
A ? is made to confirm load balance and stability.
a. cribbing check
b. dry run
c. rigging equipment and hardware check
d. test lift
d. test lift
A ? is a wheel with a concave edge for supporting a moving rope that is changing direction.
a. block
b. part
c. sheave
d. tackle
c. sheave
The ? is the ratio of the diameter of a bend to the nominal diameter of the rope.
a. bend ratio
b. bending efficiency
c. termination efficiency
d. tumback ratio
a. bend ratio
A disadvantage of synthetic slings would be?
a. Flexible
b. Resistant to most industrial chemicals
c. Soft
d. Susceptibility to abrasion or puncturing
d. Susceptibility to abrasion or puncturing
When can loads be hoisted over areas with personnel?
a. Never
b. When proper signals have been given
c. When the load has been hoisted high enough
d. When verbal communication has been given
a. Never
Only a(n) ? and designated individual should act as a signalperson.
a. experienced
b. familiar
c. new
d. untrained
a. experienced
A ? is the folding or doubling of a line to create an opening through which another line may pass.
a. bind
b. bite
c. loop
d. nip
c. loop
Bending a rope over a small diameter can reduce its effective strength by more than ? .
a. 25%
b. 35%
c. 45%
d. 50%
d. 50%
? may weaken synthetic material without any visible indication.
a. Arc welding
b. Detergents
c. Oil
d. Water
a. Arc welding
Obstructions that must be avoided by the crane and load are ? .
a. physical equipment
b. physical structures
c. prohibited areas
d. all of the above
d. all of the above
Equipment manufacturers often mark the center of gravity on their products or include ? with rigging or center of gravity information.
a. complicated instructions
b. individual directions
c. rule sheets
d. specification sheets
d. specification sheets