Welcome to your Rigger 1 Practice test Practice Test. Take the test and find out how well prepared you are!

1. When installing a shackle pin into a screw pin shackle you first hand tighten the pin and then?

Leave the pin hand tight

Back the pin off one-quarter turn

Back the pin off one-half turn

Back the pin off one-full turn

2. What sling material shall not be used when acid conditions are present?

Polypropylene

Chain

Wire rope

Nylon

3. When laying a load down on the ground which has been rigged using two basket hitches, it is advisable to block or crib up under the load so the slings can be removed with no affects from crushing.

True

False

4. For improved load security, which hitch would be best?

Choke hitch with eye pulled down on load

Double-wrap choker hitch

Single-wrap choker hitch

Single-wrap basket hitch

5. What is the stress per sling leg when two slings are placed at a 30-degree horizontal sling angle to lift a 1,000 lb load?

750 pounds

1,000 pounds

500 pounds

2,000 pounds

6. When safe working loads are determined, they are based on _________ conditions.

Average

Rare

Ideal

Worst-case

7. There are three conditions that must be present for a 3-leg sling bridle to have equally tensioned legs: All aligns must be equidistant in length. All slings must be equidistant from each other. What is the third condition that must be met?

All sling connection points must be equidistant to the load’s center of gravity

All sling connection points must be on the top surface of the load

All slings must be from the same manufacturer

None of the above

8. Which of the following is a mode of nonverbal communication?

Bullhorn

Hand-wired Radio

Buzzer

Portable radio

9. A mesh sling should be discarded if any portion of the chain is worn by ______ percent or more.

10

45

15

20

10. When measuring fittings attached to a wire rope, the measurement is made from one outside edge of the fitting to the other.

True

False

11. The optimal sling angle is____.

Between 30 and 60 degrees to horizontal

0 degrees to horizontal

90 degrees to horizontal

Between 60 and 45 degrees to horizonal

12. The most useful general-purpose jack is the _____ jack.

Hydraulic

Inverted screw

Ratchet

Upright screw

13. Special custom design grabs, hooks, clamps, or other lifting accessories for such units as modular panels, prefabricated structures and similar materials shall be marked to indicate the safe working loads and shall be proof-tested prior to use to what percent of their rated load?

110%

125%

200%

100%

14. What is meant by design factor?

Ratio between breaking strength and the rated load of the rigging hardware

The weight of the load divided by the number of lift points.

The acute angle between horizontal and vertical

The weather, temperature and humidity for which the lift is designed

15. Wire mesh slings (ASME B 30.5) states that a wire mesh sling shall be taken out of service if:

Any apparent wear marks on the sling.

Distortion of the choker fitting so that depth of the slot is increased by 5% or more.

Reduction in wire diameter of 25% due to abrasion or 15% due to corrosion.

Dirty due to the nature of the job at hand.

16. The tension in the legs of a two-legged bridle assembly being used at a 30-degree angle is twice the tension of that of two single vertical legs lifting the same object.

True

False

17. What is the code of the sling that will be needed for a lift of 7,890 lbs. In a choke hitch using a synthetic web eye/eye sling?

1-9-4

2-9-5

1-5-8

2-9-4

18. Hooks, rings, oblong links, pear-shaped links, welded or mechanical coupling links or other attachments, when used with alloy steel chains, shall have a rated capacity:

200% of the rated capacity of the chain.

Equal to the load divided by the number of lift points

At least equal to that of the chain

125% of the rated capacity of the chain

19. Swivel hoist rings shall be tightened to:

The right

Hand tight and then a ½ turn with a wrench

The torque specification of the manufacturer

30 pounds

20. Where should the saddle rest when using multiple U-bolt type cable clamps?

On the dead end of the rope

Staggered on the live/dead end of the rope

Any way you want

On the live end of the rope

21. Wire rope clips used to fabricate slings shall be spaced properly, oriented correctly and ____ to the manufacturer’s specification

Tightened

Torqued

Applied

Pre-tensioned

22. Oblong, ear-shaped and round welded links are required to be proof tested to how many times their rated capacity?

1.50

2.75

1.25

2.00

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