Review ALL Flashcards
1
Q
What function could increase load radius?
A
Swing
2
Q
Which type of tower crane would have a tower top?
A
Hammerhead
3
Q
Which type of crane would have boom hoist reeving?
A
Luffing tower crane
4
Q
Weight added to a crane base to create additional stability which does not rotate
A
Ballast
5
Q
An energy-absorbing device for reducing impact when a moving crane trolley reaches the end of its permitted travel.
A
Buffer
6
Q
A structural attachment placed between a crane tower and an adjacent structure to pass loads to the adjacent structure.
A
Bracing
7
Q
A structural attachment placed between a crane tower and an adjacent structure to pass loads to the adjacent structure.
A
Bracing
8
Q
Ground bearing pressure is _____.
A
The pressure created by both the weight of the crane and load onto its outriggers.
9
Q
True or false. ASME stands for “American society of mechanical engineers” and ASME B30.5 is their standard for tower cranes.
A
False (B30.3)
10
Q
How will trolleying out affect your capacity?
A
It will decrease.
11
Q
Unless otherwise specified, all tower crane operations must stop at a wind speed of____.
A
45mph
12
Q
True or false. Tower cranes must be weathervaned when out of service.
A
True.
13
Q
A tower crane that has no braces, guys, or support beams is a ____ tower crane.
A
freestanding
14
Q
What would increase the stability of the crane?
A
Removing weight from a suspended load.
15
Q
What does OSHA mean when they say “shall”?
A
You must.
16
Q
A jib point is ___.
A
the outermost end of the load bearing jib.
17
Q
A guyed rope is a _____.
A
wire rope which is intended to maintain a fixed distance between two points.
18
Q
Slewing is another term for ___.
A
Swinging
19
Q
True or false. Tower cranes are not permitted to pass over one another.
A
False.
20
Q
If the operator must leave a remote control unattended they must ____.
A
de-energize the crane and secure the remote.
21
Q
The anti-two block device or upper limit switch is a(n) _____.
A
Operational aid
22
Q
True or false. When a safety device malfunctions, all operations must stop until an alternative measure is implemented.
A
False. (No alternative measure)
23
Q
A ____ is an example of a safety device.
A
Integrally mounted check valve.
24
Q
What is the purpose of a hoist line pull limiting device?
A
To prevent you from exceeding max line pull.
25
After what date will cranes be subject to several additional operational aid requirements?
November 8th, 2011
26
If the trolley of a tower crane contacts the trolley stops, then that primarily indicates _____.
A malfunctioning trolley travel limiting device.
27
What are examples of a safety device?
- boom stops
- jib stops
- travel rail clamps
- hydraulic system pressure limiting device
- trolley end stops
- deadman control
28
What are not considered safety devices?
- Hoist drum limiting device
- trolley travel deceleration device
- boom hoist deceleration device
29
The A2B or hoist upper limiting device prevents contact between the load block and the _____.
Trolley
30
The A2B or hoist upper limiting device prevents contact between the load block and the _____.
Trolley
31
True or false. You are permitted to operate a tower crane with a malfunctioning category 1 operational aid after you have implemented the proper alternative measures.
True.
32
Why would you continue to use a crane with a malfunctioning category 1 operational aid after 7 days have passed?
Because you implemented all necessary alternative measures and have ordered the part within the original 7 days.
33
A pawl is best described as a device _____.
Used to positively hold a mechanism against movement in one or more directions.
34
When the crane suffers a loss of power, all brakes must automatically _____.
Engage.
35
What should you do when a function limiting device malfunctions?
Stop work.
36
Who has control of the crab by virtue of lease or ownership?
Crane owner
37
Who controls the crane’s functions?
Operator
38
Who arranges the crane’s presence on a work site?
Crane user
39
Who is responsible for providing a crane and all necessary plotting documents?
Crane owner
40
Who is responsible for ensuring that cranes are not climbed when winds are in excess of 20 mph?
Lift director
41
Who is responsible for ensuring that the site is properly prepared for the crane?
Site supervisor
42
Who is responsible for ensuring that the crane operator is present during climbing operations?
Crane user
43
Who is responsible for verifying that unauthorized access is restricted to any hazardous area?
Site supervisor
44
Who is responsible for understanding and applying the information contained in the operating manual?
Crane operator
45
Who is responsible for ensuring that the operator is physically and mentally really fit to operate?
Crane operator
46
True or false. Each role listed under ASME B30.3 for responsibilities must be filled by a different individual.
False
47
Before leaving the crane unattended without a load, which of the following must the operator implement?
Apply every lock and brake the crane is equipped with
48
If power fails during operations, which of the following must the operator implement?
Apply every lock and brake the crane is equipped with
49
True or false. The crane operator must not engage in any practice that will divert his/her attention while actually operating the crane controls.
True.
50
Who is capable of identifying existing and predictable hazards in the surroundings and who is authorized to eliminate them?
Competent person
51
Person who by possession of a recognized certificate or professional standing demonstrated the ability to solve/resolve problems.
Qualified person
52
Person who possesses specialized abilities in a specific area and is assigned by the employer to perform a specific task in that area.
Designated person
53
Who is responsible for supplying field erection information?
Site supervisor
54
Who is responsible for refusing to operate the crane near power lines?
Crane operator
55
Who is responsible for establishing the inspection and maintenance program for the crane?
Crane owner
56
Generally, if your actual radius is between values on the load chart, which radius should you use?
Next longer radius
57
What is the approximate weight of one cubic foot of steel?
490 pounds
58
What is the approximate weight of one cubic yard of concrete in pounds?
4,050
59
Approximately how much does one cubic foot of shelled corn weigh in pounds?
45
60
According to a unit conversion table, what would you multiply feet by to obtain meters?
0.3048
61
What best defines a rated capacity?
The total weight a tower crane can lift
62
Net capacity is best defined as _____.
Gross capacity minus deductions
63
True or false. The effects of wind are already considered on load chart ratings.
False
64
How frequently should the wire rope be lubricated on a hammerhead tower crane?
Bi-weekly
65
Tag lines used to control a load near a power line must be ___.
Non-conductive
66
Eccentric boom tip reeving may cause ____.
Swinging of the load
67
Voice signals must contain how many elements?
3
68
When hoisting personnel, screw type shackles used in place of the hook must be ____.
Alloy anchor
69
True or false. When hoisting personnel, you must perform the trial lift and the prof testing of the platform as separate tasks.
False
70
Platforms used for hoisting personnel must have ____.
Grab rails
71
The proof testing of a personnel platform requires you to load it to 125% of its capacity, lower it by controlled load lowering, brake and hold it for a minimum of _____.
5 minutes
72
Which list of hitches is correctly ordered from weakest to strongest?
Choker, vertical, basket
73
What is the design factor for chain slings used in rigging?
4-1
74
Higher sling angle equates to ____ sling tension.
lesser
75
When connecting wire rope together with wire rope clips, the saddle should be on the ____.
Live end
76
How many broken wires are you permitted near an end connection of a pendant line?
1
77
Generally, as radius increases, a crane’s load rating will ____.
Decrease
78
The flange of a hoist drum must extend at least how far above the top layer of wire rope?
1/2”
79
Pendant lines/guy wires are best defined as _____.
Wire rope intended to maintain a fixed distance
80
What is an assist crane?
Crane used to assist in putting together another crane
81
What is the superstructure or upper works?
Rotating portion of a crane
82
True or false. When adding weight to a suspended load you must reduce the capacity by 50%.
False
83
When lifting a load from beneath the water the weight will ____.
Increase
84
The operator must lift the load and test the brakes when a load is more than ____ of max line pull.
90%
85
According to OSHA, a tag line must be used if ____.
Necessary to prevent rotation of load that would be hazardous
86
The load ratings of the crane must not be exceeded except _____.
For in testing
87
Load rating are for _____.
Freely suspended loads
88
What must an operator do when a load is suspended?
Remain at the controls or apply proper procedures
89
When a load is in excess of 75% of the crane’s capacity, what must the operator do?
Test the brakes before proceeding
90
What must be done prior to welding on a suspended load
Install an insulated link between the hook and the load
91
Barricades must be erected to prevent crushing or contact with the counterweight on which location?
360 degrees
92
From what two items is boom length measured?
Boom foot pin, boom tip sheave pin
93
What happens when an e-stop is engaged?
All locks and brakes are set and the crane is de-energized
94
The term radius on a crane’s load chart is defined as the distance from the ______.
Center of rotation of the crane to the center of gravity of the load/hook
95
Subpar CC is related to which organization?
OSHA
96
True or false. ASME standards must be followed in relation to cranes used in construction.
False
97
Who can approve the use of non-standard hand signals?
Crane operator, lift director, and signal person
98
What is the definition of dynamic loading according to ASME?
Loads introduced to the crane by forces in motion
99
According to subpart cc, how many wraps must remain on the house drum at the hook’s lowest point?
2
100
True or false. You are never permitted to exceed your rated capacity on your load chart.
True
101
When must a signal person be used?
When the area of operation is not in full view of the operator
102
True or false. The crane operator must only follow hand signals from one person.
True
103
Where must a hand signal chart be posted?
Near hoisting operations
104
When hoisting personnel, the platform lifting system must be able to maintain ____ degrees of level regardless of boom angle.
10
105
When can synthetic slings be used to hoist personnel?
Never
106
What is the approximate weight of a metric ton in pounds?
2200
107
True or false. Lifting a load beyond the reach of the crane is permitted so long as it is not within 50% of the load chart.
False
108
According to OSHA, the minimum pitch diameter for drums and sheaves for rotation resistant wire rope is ____.
18 to 1
109
Monthly wire rope inspections must be retained for how long?
3 months
110
Annual wire rope inspections must be conducted by which individual?
Qualified person
111
Equipment not in regular use or “standby cranes” must be inspected by who?
Qualified person
112
Equipment not in regular use must be inspected how often?
Monthly
113
True or false. Wire rope slings for use in overhead lifting can be “hand tucked”.
False
114
The direction of the lay of outer strands of rotation resistant wire rope is ____ of the underlying layers.
Opposite
115
How many random broken wires in one rope lay of right regular lay running wire rope are cause for removal?
6
116
The design/safety factor of regular lay live or running wire rope is ____.
3.5
117
Wire rope is removed from service if there is a diameter reduction of ____ or more.
5%
118
How many broken wires are cause for removal in 30 rope diameters in rotation resistant wire rope?
4
119
What type of lay is indicated when the strands are wrapped around the core in a clockwise direction?
Right lay
120
If the individual wires of each strand show a parallel direction to the lay of the wire rope, is is classified as _____.
Regular lay
121
The number of times that the wire rope passes through the block, leaving a span of wire rope from one sheave to the next is known as ____.
Parts/fall of line
122
In pendant lines, how many broken wires located in one rope lay beyond the end connection are cause for removal from service?
3
123
True or false. If you don’t see off-color threads when inspecting synthetic slings, the sling can be used regardless of fraying or cuts.
False
124
What is the design factor for regular wire rope?
3.5:1
125
What is the design factor for type 1 rotation resistant wire rope?
5:1
126
What is the design factor for wire rope pendants?
3:1
127
A sudden stop when lifting or lowering a load can cause ____ of the wire rope.
Bird caging
128
How many broken wires are allowed when inspecting wire rope slings?
5 broken wires in one strand of one lay; 10 broken wires randomly distributed in a lay
129
What type of slings cannot be used in hoisting personnel?
Synthetic
130
What is one lay of of a wire rope?
The distance it takes a strand to make a complete revolution around the core
131
What OSHA standard covers wire rope?
1926.1413
132
What ASME standard covers wire rope slings?
B30.9
133
What constitutes a running wire rope?
Rope that runs over drums or sheaves
134
True or false. Wire rope slings have the same inspection criteria as running wire rope.
False
135
The best way to inspect synthetic endless round slings is to ____.
Look at the protective cover and knead through the entire length of the sling
136
During the erection and dismantling of a tower crane, written instructions must be ___.
On site
137
What is the minimum distance from objects when a tower crane is in weathervane?
6’6”
138
What are the requirements of the person who supervises the erection and dismantling of a tower crane?
Competent and qualified
139
All bolts used in structural members must be ____.
High tensile steel
140
The chamfered side of the washer should be facing ____.
Towards the nut and bolt head
141
Who can determine how many sections go over the last tie in point?
Qualified person
142
When applying proper torque to the bolts, the counterweight should be ____.
0 degrees to the bolt
143
According to ASME, lubricant should not be used on the _____.
Bolt shank
144
What device is intended to help with wire rope twist?
Twist compensator
145
True or false. Ground compaction is an important step of the erection process.
False (assembly process)
146
A complete list of weights and assembly instructions for all components of the tower crane must be ____.
On site
147
Who can allow personnel to enter the fall zone of a tower crane while erecting?
Qualified person
148
The tower crane must be plumb to within _____.
1:500 or 1” in 40’
149
True or false. If the operator is qualified to operate a tower crane, he will also be qualified to erect or dismantle it.
False
150
True or false. A load test must be performed prior to each erection.
False
151
Tower crane foundations and structural supports must be designed by ____.
The manufacturer OR a registered professional engineer/qualified person
152
According to OSHA, the minimum height employees are required to take appropriate fall protection measures in feet is ____.
6 feet
153
What is the best description of a load block?
The assembly of hook and shackle, swivel bearing, sheaves, pins, and frame.
154
What is a bogie?
An assembly of two or more axles on a rail mounted tower crane
155
The operator must lift the load two inches and test the brakes when the load is ____ of line pull.
90%
156
If the operator must leave a remote control unattended they must _____.
De-energize the crane and secure the remote
157
When should the hoisting gear be shifted?
Only when fully stopped
158
____ inspections are a form of frequent inspection.
Daily
159
Each shift, a visual inspection may be performed by a ____ person.
Competent
160
Monthly inspections must check ___.
All tower and structural bolts from the upper most tie off up
161
According to OSHA 1926 and ASME B30.3, how many broken wires are you allowed on running wire rope?
6 randomly distributed in one lay, or 3 in one strand of one lay
162
How many broken wires are allowed on rotation resistant wire rope?
2 in 6 rope diameters, or 4 in 30 rope diameters
163
When you have unused wraps of wire rope, you should unwind all the rope off the drum except the three or two wraps and spool it back onto the drum at ____ max line pull.
10%
164
Before each component is erected it must be inspected by a qualified person for ____.
Damage or excessive wear
165
High tensile bolts shall be marked with ____.
Strength rating and manufacturer’s designation
166
When washers are used for high-tensile bolt connections, they shall always be marked with which designation?
HV
167
Prior to applying the proper torque to the nut on a tower crane’s high tensile bolt connection you should _____.
Lubricate the threads
168
Which components of a tower crane are connected with high tensile bolt connections?
Foundation anchors, tower sections, slewing ring support
169
How many pounds does a cubic foot of concrete weigh?
150
170
A tower crane’s gear box oil levels should be checked at what interval?
Weekly
171
According to a metric conversion table, bars multiplied by 14.503 773 77 equals ____.
Pounds per square inch
172
When setting up a self-erecting tower crane, the outrigger jacks should be at what angle to the supporting surface?
90 degrees
173
When performing a load test on a traveling tower crane, it shall be conducted with the hook in the position that causes the maximum loading on ____.
One wheel or bogie
174
Central ballast blocks must be distributed _____ around the tower base.
Equally
175
When setting up a self-erecting tower crane, the preferred method is to use mats constructed of timbers that are ____.
Thru-bolted
176
When lifting loads using a two way bridle, it is important to always remember that the _____.
lower the horizontal angle, the greater the sling tension
177
In the order of strongest to weakest, which hitches would be correct?
Basket, vertical, choker
178
According to OSHA 1926.1435, how often must the turntable and tower bolts be inspected for proper torque and condition?
Annually
179
According to OSHA, when lifting personnel in a platform, the crane’s hook must be the type that _____.
Can be closed and locked
180
According to OSHA 1926.1431, employees occupying a personnel platform over water are not _____.
Required to wear a personal fall arrest system
181
According to OSHA 1926.1435, before assembly, all tower crane components must be visually inspected for _____.
Damage or excessive wear
182
According to OSHA 1926.1408, what is NOT required when using a dedicated spotter to prevent encroachment?
Proximity alarm
183
According to OSHA 1926.1431, when a wire rope bridle is used as rigging between a personnel platform and the load line hook, each bridle leg shall be connected to a ____.
Master link
184
According to OSHA Subpart CC, when is it safe to work closer than the allowable distance from power lines?
When the utility owner says lines are de-energized
185
According to OSHA Subpart CC, when is it safe to work closer than the allowable distance from power lines?
When the utility owner says lines are de-energized
186
According to OSHA 1926.1435, when the manufacturer does not specify plumbing tolerance, the crane tower must be plumb to a tolerance of _____.
1 inch in 40 feet
187
When is a spotter required to be utilized when working in close proximity of power lines?
When the operator cannot see the elevated warning lines
188
According to OSHA 1926.1431, eyes in wire rope bridle slings used for hoisting personnel platforms must be fabricated with _____.
Thimbles
189
According to OSHA 1926.1435, the size and location of any advertisements panel installed on a tower crane should be approved by which entity?
Manufacturer
190
According to OSHA 1926.1435, which item must be mounted above the rotating superstructure on a tower crane?
Wind speed device
191
According to OSHA Subpart CC, a pre-erection inspection must be performed by which person?
Qualified person
192
According to OSHA Subpart CC, which item is not a refer the monthly inspection on a tower crane used in construction?
Turntable
193
According to OSHA 1926.1431, the total weight of the loaded personnel platform and related rigging shall not exceed ____.
50% of the crane’s capacity at any given radius or configuration
194
According to OSHA 1926.1431, what device must be used to prevent damage or failure at all points where two-blocking could occur?
Anti two-block
195
According to OSHA, in addition to training, what must be done to prevent people from being struck or crushed by the rotating superstructure of a self-erecting tower crane?
Erect and maintain warning lines
196
According to OSHA 1926.1421, what is the first element of voice signals given to a tower crane operator prior to the lift?
Function and direction
197
According to OSHA, how many elements are contained in each series of voice signals?
Three
198
The OSHA construction standard for rigging equipment is found in what section?
1926.251
199
According to OSHA 1926.251, when inspecting alloy steel chain slings used in hoisting, which item must be attached to the sling?
ID tag
200
According to OSHA, wire rope slings shall not be used if, in any length of eight diameters, the total number of visible broken wires exceeds what percent of the total number of wires?
10
201
According to OSHA 1926.251, custom designed rigging hardware shall be proof tested to what percent of their rated load?
125
202
According to OSHA 1926.251, all rigging and hardware shall be inspected by what person?
Competent person
203
In accordance with whose instructions should a load test be conducted?
Manufacturer
204
On a tower crane, what diameter of the load hoist drum shall be sufficient to provide a first layer rope pitch diameter of not less than _____.
18 times the nominal diameter of the rope
205
What class of portable fire extinguisher shall be kept in the cab or in the machinery platform of any tower crane?
ABC
206
When a tower crane is installed in proximity to power lines, durable signs shall be installed where on the crane?
Operator’s station and base
