Rigger/Technician Question:
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Which angle from horizontal will produce the greatest tension in a sling leg; a 60 degree angle, a 45 degree angle or a 30 degree angle?
a. 60 degrees
b. 45 degrees
c. 30 degrees

Answer:

c. 30 degrees

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Using a crane scale and test lift method we discover the load's north end weighs 21,000 lbs and the south end weighs 7,000 lbs. If the load is 16 ft in length (north to south) the center-of-gravity is approximately ____ feet from the north end.
a. 2
b. 12
c. 8
d. 4		What is the maximum line pull for a 5-ton snatch block?
a. 2.5 ton
b. 10 ton
c. 5 ton