Rigging
WIRE AND CHAIN
SLING
HOISTING
100
The working load limit (WLL) of a rigging hook is accurate only when the load is suspended from the _____.
saddle of the hook
100
If a single wire in a 6 x 19 wire-rope sling breaks, about how much of its strength is likely to be lost?
WHAT IS
1 percent
100
Based on the measurements shown in the figure above, what is the sling factor that should be applied to the weight of the lifted load on each sling?
WHAT IS
1.185
100
When controlling a long load with a tagline, such as a load of pipe, try to maintain a position that is _____.
WHAT IS
that is 90 degrees to the length of the load
200
Which of the following is a true statement about rigging hardware?
WHAT IS
Plate clamps are designed to lift only one plate at a time.
200
Which of the following information is required on the label of a wire rope sling?
WAHT IS
Rated load for at least one possible hitch and the angle on which it is based
200
The optimum sling angles are between _____.
WHAT IS
60 and 45 degrees to the horizontal plane
200
The best knot to use when two ropes must be joined for use as a tagline is the _____.
WHAT IS
short splice
300
Which type of turnbuckle should not be used for rigging?
WHAT IS
Hook and hook
300
The type of sling shown in the figure above is a(n) _____. 
WHAT IS
endless
300
The simplest way to find a load's center of gravity is to _____.
WHAT IS
lift the load slightly from a single point and see which way it tilts
300
When lightning or thunder is present _____.
WHAT IS
has more lifting capacity than a simple block and tackle
400
Which of the following statements about the use of turnbuckles is correct?
WHAT IS
Turnbuckles are used to adjust the length of rigging connections.
400
Because they withstand both corrosion and abrasion better than other slings, dredging and similar marine work is best done using _____.
WHAT IS
chain slings
400
When unloading bundles of pipe, _____.
WHAT IS
set the pipe on hardwood blocks to keep the pipe off the ground
400
A typical come-along _____.
WHAT IS
cannot be used for vertical lifting
500
Long loads involving a single crane are supported during lifting operations with a(n) _____.
WAHT IS
spreader beam
500
ASME Standard B30.9 provides guidance for chain slings regarding the minimal thickness at any point on the link, with the measurements based on _____.
WAHT IS
the nominal size of the chain link
500
When controlling a long load with a tagline, such as a load of pipe, try to maintain a position that is _____.
WHAT IS
that is 90 degrees to the length of the load
500
The jack shown in the figure above is a(n) _____.
WHAT IS
bottle jack