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nccco-rigger-practice-exam
Camille Singletary
2019-09-17T15:26:39-04:00
NCCCO RIGGER
PRACTICE TEST
Welcome to your
CCO Rigging Practice Exam
1.
What is the smallest diameter item that can be placed in the eye of a wire rope sling?
Double the diameter
Equal to the diameter
Half the diameter
Three times the diameter
2.
The formula to figure the angle factor on a sling is expressed by ............?
Sling angle factor = L/H
Sling angle factor = H/L
Sling angle factor = L1/L2
Sling angle factor = L2/L1
3.
The formula to figure cubic yards is?
L x W x H
L x L x L
W x H1 x H2
H1 x H2 x H3
4.
Given that steel weighs 490 lbs per cubic foot, a 5' x 6' x 6" block of steel weighs?
7,350 lbs
88,200 lbs
51,035 lbs
61,247 lbs
5.
What ANSI standard covers Below-the-Hook lifting devices?
ANSI B30.5
ANSI B30.1
ANSI B30.20
ANSI B30.9
6.
If the opening of a hook is stretched over......... percent or 1/4" if must be replaced.
5 %
10 %
15 %
20 %
7.
What is the minimum safety factor used for chains in hoisting applications?
6:1
5:1
4:1
3:1
8.
What is the
lowest sling angle allowed
for wire rope or chain?
60 degrees
45 degrees
30 degrees
As long as the angle is estimated it is the users responsibility
9.
The tension on one leg of a two-leg alloy steel chain sling lifting a load of 8.4 tons, with a horizontal angle of 45 degrees is ............? (Use 1.414 angle factor)
4.14 tons
5.94 tons
8.28 tons
11.88 tons
10.
The load angle factor for a horizontal angle of 10 degrees is .........?
2.924
5.414
5.747
6.542
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