written exam for swing cab and fixed cab Flashcards
1
Q
jib is the same as saying ______?
A
fly
2
Q
how many parts of line can you have on the whip?
A
1
3
Q
everything above the rotating turret is called the ?
A
superstructure
4
Q
counterweights create more ?
A
leverage
5
Q
the ____ or _____ is used to increase boom height?
A
jib/fly
6
Q
outriggers are used to _______?
A
relieve weight from the tires
7
Q
assume all power lines are _________?
A
energized
8
Q
majority of ground crew die from ?
A
energized power lines
9
Q
warnings for power lines must be posted where?
A
visible from crane cab and posted outside crane
10
Q
de-energized circuits must be verified by the ?
A
line owner
11
Q
what is required when the crane is within a boom’s length of the power line?
A
signal person
12
Q
minimum sheave size has to be how many times the nominal diameter of the rope?
A
16
13
Q
what is measured from the heel pin to the center of the boom tip sheave
A
boom length
14
Q
how do you calibrate the boom angle indicator?
A
move boom to horizontal position, set to zero
15
Q
what is calculated from the center of rotation (fulcrum) to the center of the vertical load line
A
load radius
16
Q
crane stability is based on ?
A
leverage
17
Q
to determine load weight with a _________ load weight and factor in all the rigging
A
certified
18
Q
capacities in a load chart are assuming _______ ______?
A
ideal conditions
19
Q
values in a load chart are ______ capacities?
A
gross
20
Q
gross minus deductions equals?
A
net load capacity
21
Q
load chart capacity is based on what kind of loads?
A
static
22
Q
what identifies the operational quadrants?
A
a work area diagram
23
Q
what reference is used to determine the boom tip height
A
range diagram
24
Q
rigging, hook, and blocks are all part of the ____ load?
A
gross
25
the hoist line stowed on top of the boom is/is not a deduction?
not
26
the __________ weight of the stowed jib is lower than the actual weight?
effective
27
where is the stowed boom extension pinned?
at the base section
28
when calculating net capacity and the rated load capacity in the chart is greater than the line pull capabilities, you must?
scratch out the rated load and plug in the permissible line pull for that block configuration
29
non standard attachments are a ________ from the load rating?
deduction
30
when capacities fall between listed values on a load chart, always go with _______ angle and _______radius.
lower/longer
31
a signal person must be posted when you cannot ________ ____ _________ with your outrigger extensions physically going out?
make visible contact
32
moving the tipping axis closer to the cranes center of gravity ______ stability?
reduces
33
when can you have outriggers partially out?
when the load chart specifies this is acceptable
34
who ensures supporting surface is prepped, shift inspection complete, and it contains ground conditions?
controlling entity
35
the float pads must be ______________________ when not is use?
locked and at 90 deg
36
when your crane is on outriggers 100% then you have to be _______- 100%
off your tires
37
blocking has to be _________ than your float pads?
larger
38
what is used to decrease ground pressure?
blocking under the float pads
39
what increases ground pressure and reduces stability?
span blocking
40
what are typical ground conditions?
loose fill, voids, tanks, depressions
41
where in relation to work area is the most ground pressure applied?
over the corner
42
what is an important site access consideration?
approach road
43
where are hazards and restrictions found?
on the pre-operational worksite inspection
44
what is a big concern with working near a new build?
back-fill compaction
45
capacities are based on either ______ or ________ limitations
structural/stability
46
wire rope drum inspections are done prior to each______?
shift
47
what takes a regular right hand layed rope out of service?
6 broken wires in any strand in one lay length/ 3 wires in one stand in a lay length (6 got layed, 3 got stranded)
48
lubrication of wire rope cannot _______ ________?
hinder visible inspection?
49
as layers on a wire rope drum increase, line pull will?
decrease
50
amount of weight drum will hoist for a given layer is called?
line pull
51
how many minimum wraps are allowed to remain on the wire rope drum?
2
52
how far above the top layer of rope must the drum flange extend?
1/2"
53
breaking strength divided by _________ equals safe working load?
safety factor
54
what is the safety factor of RRL? for rotational resistant?
RRL= 3.5
| rotational resitant= 5
55
if socket is attached directly to a load without a swivel the line will?
spin
56
when do you remove rot resistant wire from service?
2 broken wires in 6 diameter length of the rope/ 4 is 6 diameter length
(2, 6 packs at 4:30)
57
only ___ broken wire/wires allowed near an end socket on standing wire rope?
1
58
the drum location indicator gives ______ and ________?
speed / direction
59
when is a drum location indicator required?
when the drum is not visible to the operator?
60
the audible outrigger / stabilizer alarm sounds when what condition is met?
when the outriggers are moving
61
if the radius indicator fails you must ________ the radius?
measure
62
when extending the boom, pay out line to avoid a _____ ________?
two block
63
two blocks happen when what three functions are used?
hoist up, extend out, lower boom (HEL)
64
when the anti two block device fails, you should?
mark the cable, use a spotter
65
level crane from turret. true or false?
true
66
level the crane within 1 % then swing the crane over ____ deg and check again?
90
67
when the boom length indicator fails you should?
mark the boom with distance marks
68
what is included in a monthly inspection?
documented shift inspection
69
inspections are made by a _______ person?
competent
70
when inspecting the boom check the _____ _____?
wear pads
71
jib capacities are based on ______ strength?
structural
72
using an offset jib will ______ load capacity
reduce
73
what does the PTO provide power to?
hydraulic pump
74
when faced with windy conditions always default to?
manufactures recommendations
75
heavy loads cause _______ _______- which increases the ____ ________?
boom deflection/load radius
76
barricaded the _______ __________ to prevent injury?
rotating superstructure
77
when picking from the water, load will ?
increase
78
when fitted with a luffing jib, it must also have a ____ _______?
limiting device
79
who overseas assembly and disassembly of the crane?
A/D director
80
operators must test brake when what conditions are met?
load is 90% of max line pull
81
dynamic motion will increase ________?
load radius
82
if power fails then you must?
set brakes and lock devices
83
audible signals used on the horn are 1 -2 -3 for which signals?
1 stop/2 fwd/ 3 reverse
84
when using voice signals give the ____ then the ______?
function/direction
85
when can you bypass your LMI?
during assembly/disassembly
86
what percent is considered a critical lift?
75%
87
man baskets must be ratted at ____ the rated load
5 times
88
D/d ratio is the ?
diameter of load divided by the diameter of the sling
89
what is not permitted when personnel are in a fall zone?
a sorting hook
90
inspect rigging prior to each ____?
use and shift
91
list the sling configurations from strongest to weakest
basket, vertical, choker
92
when assembling and disassembling, use a ________ sling
synthetic
93
a lift of a man basket requires the following four things?
load chart, boom angle indicator, boom height indicator, anti 2 block device
94
when lifting a man basket with personnel, you cannot exceed ____ rated capacity
50%
95
proof test _____ rated load for personnel lifts?
125%
96
who is not allowed in the fall zone during personnel lifts?
qualified evaluator
97
for duty cycle wok, reduce capacity IAW the _________?
manufacture
98
what is the capacity reduction for pick and carry operations?
limited to 75%
99
what king of wire rope is more prone to internal damage?
Rot resistant
100
who can give the crane operator the signal to stop?
anyone
101
under what conditions can operator leave the controls with a load suspended or hoisting a personnel platform?
none
102
what can change radius independent of the main boom?
103
rope that moves over sheaves and drums is?
running
104
what is the clearance distance for a crane operating near a 47 KV power line?
10 feet
105
what is the clearance distance for a crane operating near a 69 KV power line?
15 feet
106
what is the clearance distance for a crane operating near a 230 KV power line?
20 feet
107
what is the
108
what is the clearance distance for a crane in transit near a 12 KV power line?
6 feet
109
what is the clearance distance for a crane traveling near a 120 KV power line?
10 feet
110
if any part of equipment will get closer than ____ while traveling near a power line, then use a ______ ________
20 feet/ designated spotter
111
for a load chart to be valid, crane must be leveled within _____%
1
112
what matches a load chart to a crane?
serial number
113
a rough terrain craneset up on outriggers that is based on 85% tipping should have the tires?
off the ground
114
the values listed in a load chart show the ?
rated capacities
115
load radius is defined as horizontal distance from center of rotation to center line of vertical hoist with the rated load?
suspended
116
you pick a load and as you lift off the ground the load swings away from the crane, increasing the radius. what caused this?
unaccounted for boom deflection
117
crawler cranes produce the least amount of ground pressure over the ?
side
118
the work are chart specifies that the "over the front" area is determined by?
the manufacture
119
you have a load of 26,000 pounds and a line pull of 8,000 pounds. how many parts of line are needed to make the lift?
4
120
a load applied at an angle to the vertical plane of the boom describes?
side loading
121
rapid hoist acceleration does what?
produces hook loads higher than the actual load weight
