36 questions
Knot reduces ropes strength by
50%
25%
75%
90%
Splice Reduces a ropes strength by
15%-20%
5%-10%
25%-30%
40%-45%
Hitch reduces strength by?
25%
50%
75%
10%
Most common laid line for general use?
hawser
shroud
Mooring line
Anchor line
Strength Factor for Nylon rope is?
2.5
2
1.5
3.5
Strength factor for Polyester rope is?
2
2.5
1.25
9
Breaking strength for 3/8 manilla rope in pounds to 2 decimal places.
1406.25
1250.00
1650.00
2000.00
SWL of OLD 3/8 Manila rope, factor of 8. 2 Decimal places and in Lbs.
175.78
198.78
158.78
188.78
WLL for 5/8 Nylon rope, 3 decimal places and in pounds
1953.125
1553.125
2553.125
3553.125
Non rotating wire strands and wires
18 x 7
8 x 19
6 x 19
6 x 7
What is the breaking strength of fiber core wire rope that has a diameter of 13/16"? 2 Decimal places and in pounds
55,453.13
55,453.60
55,400.12
15,123.12
SWL For 5/8 Chain (D2 x 6) in pounds.
4687.5
4687.2
4687.6
4688.0
Ideal rigging angle for 2 slings
60 degrees
45 degrees
90 degrees
120 degrees
Ideal minimum rigging angle for 2 slings
45 degrees
30 degrees
60 degrees
90 degrees
The degree at which 2 slings are equal tension to the load weight
30 degrees
45 degrees
60 degrees
15 degrees
What is the tension here?
3333.33
3325.00
1875
2450
How many degrees out of level can add 50% extra stress on a boom?
3 degrees
5 degrees
10 degrees
15 degrees
Carrier-mounted lattice boom cranes are also called
conventional cranes
rough terrain cranes
Tower cranes
Hydraulic cranes
RT cranes are also known as
Cherry pickers
Convectional
Lattice boom
Excavators
4 bells or lights indicates?
All clear
stop
raise
lower
Two horn blasts is?
forward
stop
Reverse
first sheave away from drum must be in center of drum at right angles to the axis of the drum. The angle between this line and the hoisting line as it winds on the drum is called?
Fleet angle
Ground angle
Sheave angle
Tension angle
Fleet angle should not exceed how many degrees on a grooved drum?
2 Degrees
1.5 Degrees
5 Degrees
15 Degrees
The lifting power of a come-a-long is provided by a ____________ system
Pawl and ratchet
Rectilinear drive
Hydraulic
Pneumatic
On a tirfor the _______ has 2 jaw blocks that clamp and haul the rope without damaging it.
Rectilinear drive
Pawl and ratchet
Pulley system
Hydraulic winch
Maximum degrees a beam clamp should be lifting?
15 degrees
20 degrees
25 degrees
10 degrees
Wire rope clips will develop approximately ___% of the ropes strength
80%
50%
90%
70%
Number of clips required for 7/8 wire rope
4
5
6
3
Used to form eyes on a rope and absorb the strain and wear in the eye to prevent deforming under load describes a?
Thimble
Knot
Pulley
Hook
Extra strengthin wire rope when wire core is used?
7.5
5.5
9.5
11.5
How many wire rope clips are required for a 3/4" wire rope
4
3
5
2
Spacing on 1" wire rope clips
6"
5"
1'
4"
What is #2
jib Backstay/jib pennants
Jib Safety Line
Jib Gantry
Crown
What is #4
jib Backstay/jib pennants
Bridle/Yolk
boom stopper
Cab
What is #18
jib safety line
job gantry
jib pennants
Cab
When splicing natural fiber rope the number of tucks required is?
3
4
5
6