NCCCO TOWER CRANE EXAM REVIEW
QUESTIONS WITH COMPLETE
ANSWERS
A/D Director - ANSWER -Assembly Disassembly director
Must - ANSWER -OSHA mandatory
Shall - ANSWER -ASME mandatory
Should - ANSWER -ASME suggested
Rotation resistant - ANSWER -2 in 6, 4 in 30
Standard wire rope - ANSWER -12 in one rope lay
201 to 350 kV - ANSWER -20 feet
ASME - ANSWER -American Society of Mechanical Engineers
ANSI - ANSWER -American National Standards Institute
ASME B30.3 - ANSWER -Tower Cranes
ASME B30.30 - ANSWER -Ropes
OSHA - ANSWER -Occupational Safety and Health Administration
OSHA 1926.1400cc - ANSWER -Cranes in Construction
OSHA 1926.1435 - ANSWER -Tower Cranes
High tensile bolts shall be marked with - ANSWER -Strength rating and manufacturers
designation
Tower sections must use high-tensile nuts with a strength rating of - ANSWER -12
High tensile washers shall always be marked with the designation - ANSWER -HV
Prior to applying the proper torque to the nut on a Tower cranes high - tensile bolt
connection you should ? - ANSWER -Lubricate the threads
, Which components of a Tower crane are connected with high tensile bolt connections ?
- ANSWER -Foundation anchors , tower sections , slewing ring support
What is the approximate weight of a cubic yard of concrete in US pounds ? - ANSWER -
4,000
How many pounds does a cubic foot of concrete weigh ? - ANSWER -150
A Tower cranes gear box oil levels should be checked at what interval - ANSWER -
Weekly
According to a metric conversion table , bars multiplied by 14.503 773 77 equals ? -
ANSWER -Pounds per square inch
According to a length conversion table , meters multiplied by 3.280 839 895 equals ? -
ANSWER -Feet
When setting up a self - erecting tower crane , the outrigger jacks should be at what
angle to the supporting surface ? - ANSWER -90 degrees
What is the approximate weight of a cubic foot of steel in US pounds ? - ANSWER -490
When performing a load test on a traveling Tower crane , it shall be conducted with the
boom in the position that causes the maximum loading on which component? -
ANSWER -One wheel or bogie
Central ballast blocks must be distributed ___ around the tower base ? - ANSWER -
Equally around
When setting up a Self- Erecting Tower Crane , the preferred method is to use mats
constructed of timbers which are - ANSWER -Thru bolted
When lifting loads using a two way bridle it is important to always remember that the : -
ANSWER -lower the horizontal angle the greater the sling tension
In the order of strongest to weakest which hitches listed below would be correct ? -
ANSWER -Basket , Vertical , Choker
According to Subpart CC , how many full wraps of wire rope must remain on the hoist
drum when the load hook is in its lowest position ? - ANSWER -2
According to OSHA 1926.1435 , how often must the turntable and tower bolts be
inspected for proper torque and condition ? - ANSWER -Annually
Which of the OSHA Subparts regulates personnel platforms suspended from cranes
used in construction ? - ANSWER -Subpart CC
QUESTIONS WITH COMPLETE
ANSWERS
A/D Director - ANSWER -Assembly Disassembly director
Must - ANSWER -OSHA mandatory
Shall - ANSWER -ASME mandatory
Should - ANSWER -ASME suggested
Rotation resistant - ANSWER -2 in 6, 4 in 30
Standard wire rope - ANSWER -12 in one rope lay
201 to 350 kV - ANSWER -20 feet
ASME - ANSWER -American Society of Mechanical Engineers
ANSI - ANSWER -American National Standards Institute
ASME B30.3 - ANSWER -Tower Cranes
ASME B30.30 - ANSWER -Ropes
OSHA - ANSWER -Occupational Safety and Health Administration
OSHA 1926.1400cc - ANSWER -Cranes in Construction
OSHA 1926.1435 - ANSWER -Tower Cranes
High tensile bolts shall be marked with - ANSWER -Strength rating and manufacturers
designation
Tower sections must use high-tensile nuts with a strength rating of - ANSWER -12
High tensile washers shall always be marked with the designation - ANSWER -HV
Prior to applying the proper torque to the nut on a Tower cranes high - tensile bolt
connection you should ? - ANSWER -Lubricate the threads
, Which components of a Tower crane are connected with high tensile bolt connections ?
- ANSWER -Foundation anchors , tower sections , slewing ring support
What is the approximate weight of a cubic yard of concrete in US pounds ? - ANSWER -
4,000
How many pounds does a cubic foot of concrete weigh ? - ANSWER -150
A Tower cranes gear box oil levels should be checked at what interval - ANSWER -
Weekly
According to a metric conversion table , bars multiplied by 14.503 773 77 equals ? -
ANSWER -Pounds per square inch
According to a length conversion table , meters multiplied by 3.280 839 895 equals ? -
ANSWER -Feet
When setting up a self - erecting tower crane , the outrigger jacks should be at what
angle to the supporting surface ? - ANSWER -90 degrees
What is the approximate weight of a cubic foot of steel in US pounds ? - ANSWER -490
When performing a load test on a traveling Tower crane , it shall be conducted with the
boom in the position that causes the maximum loading on which component? -
ANSWER -One wheel or bogie
Central ballast blocks must be distributed ___ around the tower base ? - ANSWER -
Equally around
When setting up a Self- Erecting Tower Crane , the preferred method is to use mats
constructed of timbers which are - ANSWER -Thru bolted
When lifting loads using a two way bridle it is important to always remember that the : -
ANSWER -lower the horizontal angle the greater the sling tension
In the order of strongest to weakest which hitches listed below would be correct ? -
ANSWER -Basket , Vertical , Choker
According to Subpart CC , how many full wraps of wire rope must remain on the hoist
drum when the load hook is in its lowest position ? - ANSWER -2
According to OSHA 1926.1435 , how often must the turntable and tower bolts be
inspected for proper torque and condition ? - ANSWER -Annually
Which of the OSHA Subparts regulates personnel platforms suspended from cranes
used in construction ? - ANSWER -Subpart CC
