Study Guide for Tower Crace
Before crane erection can begin what must be available? - ANS-Surface that is firm, drained
and graded
OSHA 29 CFR 1926.1407 Power Line Safety, Option 1 Requires what? - ANS-Power Lines are
de-energized and grouded
OSHA 29 CFR 1926.1407 Power Line Safety, Option 2 Requires what? - ANS-20 Foot
Clearance
OSHA 29 CFR 1926.1407 Power Line Safety, Option 3 Requires what? - ANS-Table Clearance
Before work can began for a new erected tower carne what must be done before crane can
begin working? - ANS-Set load motion limits and safety devices
What type of attachment system is used to hold a personnel platform to the crane hook -
ANS-Master link attachment or safety type shackle
When should a personnel platform be used - ANS-there is no other safe way to perform the task
OSHA, Cranes and Derricks working in Construction is under what regulation - ANS-29 CFR
1926
What is the safety Factor of suspended platform and shackles - ANS-10 to 1
What ASME Standard applies to personnel platforms - ANS-B 30.23
Annual inspection records must be kept for how long - ANS-12 months
What ASME Standard applies to Tower Cranes - ANS-B 30.3
Expendable tower base, the tolerance for "plumb" is? - ANS-1/4 - 10ft
Free standing Hammerhead tower crane mast will be "plumbed" to a tolerance of; - ANS-1 inch
= 40ft
Before crane components are erected they shall be - ANS-Visually inspected for damage from
shipping and handling
Where would the insulating link device be attached - ANS-Attached or installed at the end of
load line and the load
, annual/comprehensive inspection must include the qualified person to perform - ANS-functional
motion testing of the equipment
rail buffers or rail stops must be placed how far from the end of the travel tracks - ANS-3 ft
Internal climbing crane must be plumbed by using what to hold the crane in position -
ANS-Wedges
What is the maximum rate of wind speed allowed to climb a tower crane - ANS-20 mph
During erection or dismantling operations, who must always be present - ANS-AD director
How many wraps shall remain on the hoist drum according to the Tower Crane Reference
Manual - ANS-3
Personnel Platform must be Proof Tested each day before use, how much weight is sued and
how long must the test last for - ANS-125% and hold for 5 minutes
OSHA 1926. 1407 power requirements for 1000kv are - ANS-Remain 20' or more from lines
Standing rope or pendant lines must have the following minimum design factor of - ANS-3:1
OSHA 1926. 1412 inspections requirements are - ANS-Monthly and annually inspection
Hydraulic cylinders must have what safety device to prevent accidental retracting - ANS-check
valves
Foundations and structural supports must be designed by - ANS-Registered professional
engineer
Who must provide erecting procedures to ensure the crane manufactures instructions are
followed - ANS-A/D Director
Before each crane component is erected who must perform the Pre-erection inspection -
ANS-Qualified person
ASME B30.0, equipment not in regular use and idle for more than 3 months require -
ANS-frequent and periodic
During load testing operations what is the maximum load capacity? - ANS-110%
How many broken wires are allowable at the end of standing rope - ANS-1
Before crane erection can begin what must be available? - ANS-Surface that is firm, drained
and graded
OSHA 29 CFR 1926.1407 Power Line Safety, Option 1 Requires what? - ANS-Power Lines are
de-energized and grouded
OSHA 29 CFR 1926.1407 Power Line Safety, Option 2 Requires what? - ANS-20 Foot
Clearance
OSHA 29 CFR 1926.1407 Power Line Safety, Option 3 Requires what? - ANS-Table Clearance
Before work can began for a new erected tower carne what must be done before crane can
begin working? - ANS-Set load motion limits and safety devices
What type of attachment system is used to hold a personnel platform to the crane hook -
ANS-Master link attachment or safety type shackle
When should a personnel platform be used - ANS-there is no other safe way to perform the task
OSHA, Cranes and Derricks working in Construction is under what regulation - ANS-29 CFR
1926
What is the safety Factor of suspended platform and shackles - ANS-10 to 1
What ASME Standard applies to personnel platforms - ANS-B 30.23
Annual inspection records must be kept for how long - ANS-12 months
What ASME Standard applies to Tower Cranes - ANS-B 30.3
Expendable tower base, the tolerance for "plumb" is? - ANS-1/4 - 10ft
Free standing Hammerhead tower crane mast will be "plumbed" to a tolerance of; - ANS-1 inch
= 40ft
Before crane components are erected they shall be - ANS-Visually inspected for damage from
shipping and handling
Where would the insulating link device be attached - ANS-Attached or installed at the end of
load line and the load
, annual/comprehensive inspection must include the qualified person to perform - ANS-functional
motion testing of the equipment
rail buffers or rail stops must be placed how far from the end of the travel tracks - ANS-3 ft
Internal climbing crane must be plumbed by using what to hold the crane in position -
ANS-Wedges
What is the maximum rate of wind speed allowed to climb a tower crane - ANS-20 mph
During erection or dismantling operations, who must always be present - ANS-AD director
How many wraps shall remain on the hoist drum according to the Tower Crane Reference
Manual - ANS-3
Personnel Platform must be Proof Tested each day before use, how much weight is sued and
how long must the test last for - ANS-125% and hold for 5 minutes
OSHA 1926. 1407 power requirements for 1000kv are - ANS-Remain 20' or more from lines
Standing rope or pendant lines must have the following minimum design factor of - ANS-3:1
OSHA 1926. 1412 inspections requirements are - ANS-Monthly and annually inspection
Hydraulic cylinders must have what safety device to prevent accidental retracting - ANS-check
valves
Foundations and structural supports must be designed by - ANS-Registered professional
engineer
Who must provide erecting procedures to ensure the crane manufactures instructions are
followed - ANS-A/D Director
Before each crane component is erected who must perform the Pre-erection inspection -
ANS-Qualified person
ASME B30.0, equipment not in regular use and idle for more than 3 months require -
ANS-frequent and periodic
During load testing operations what is the maximum load capacity? - ANS-110%
How many broken wires are allowable at the end of standing rope - ANS-1
