Exam (elaborations)
TOWER CRANE QUESTIONS AND ANSWERS
- Course
- Institution
TOWER CRANE QUESTIONS AND ANSWERS
[Show more]
Content preview
TOWER CRANE QUESTIONS AND ANSWERSWhich of the following OSHA regulations govern suspended personnel platforms? -
Answers -OSHA 1926.1431
According to ASME B30.3 The prohibited zone for power lines that are 60 kV is -
Answers -15 ft
According to ASME B30.3, load hoist rotation resistant wire rope has a design factor of -
Answers -5 to 1
According to ASME B30.3 when Lifting a suspended personnel platform design factor
for the rigging hardware is - Answers -5 to 1
According to ASME B30.3 Load hoist ropes that are not rotation resistant must have a
design factor of - Answers -5 to 1
Cranes lifting personnel platform must have the platform and rigging inspected: -
Answers -Prior to each shift
Crane hooks must not be twisted in excess of: - Answers -10 degrees
A Crane hook's throat must not exceed: - Answers -15% of its original size
By order of hitch strength which is the correct answer? - Answers -
Basket,vertical ,choker
According to ASME B30.3 And OSHA you should always have at least how many wraps
on the hoist drum? - Answers -2
What is the minimum allowable distance from the crane and power lines under 50 kV? -
Answers -10 ft
According to ASME B30.3 How many randomly broken wires must there be to remove a
running wire rope from service? - Answers -12
According to ASME B30.3 when working near power lines when is a signal person
required? - Answers -When crane moves within a booms length of power lines
According to OSHA after the crane has been checked out and before personnel lift
operations begin the crew should: - Answers -Have a pre-lift meeting
According to OSHA when is it safe to work closer than the allowable distance from
power lines? - Answers -When utility company says lines are De-Energized
When should a tagline be used? - Answers -When rotation of load would be dangerous
, What is the minimum design factor required for a boom hoist rope? - Answers -3.55
How many broken wires must be present in one strand of one lay for running wire rope
to be removed from service? - Answers -4
What is the maximum permitted wind speed when climbing a tower? - Answers -20 mph
According to ASME B30.3 A crane should be plumbed to: - Answers -1 to 500
According to ASME B30.3 The rated load under static conditions shall not exceed
_________ of calculated tipping loads - Answers -63%
According to AMSE B30.3 an overhead powerline is ALWAYS considered to be: -
Answers -Energized until the power company has verified it is not energized
High tensile bolts shall be marked with manufacturers designation and: - Answers -
Strength rating
Bolt connections for tower sections must use high tensile strength nuts with ratings of: -
Answers -12
Washers used in high tensile bolt connections shall be marked with: - Answers -HV
Before installation high tensile bolt connection Components shall be cleaned and
visually examined for: - Answers -Damage and corrosion
When ready to torque the nut on a high tensile bolt connection you should: - Answers -
Lubricate threads
During tightening of high tensile connections the bolt is stretched to a specific
percentage of its elastic limit at the correct: - Answers -Torque
Preferably the tightening torque shall be applied to the: - Answers -Nut
The tightening torque values placed on the nuts and bolts of high tensile bolt connection
are dependent on the: - Answers -Type and size
What components of a tower crane are connected with high tensile bolt connections? -
Answers -Foundation anchors, tower sections, slewing ring support
When the Tower base bolts are torqued the counter jib should be positioned: - Answers
-0° from the bolt
According to the NCCCO tower crane reference manual what items below should be
part of the operators Daily pre-check? - Answers -Wire ropes, limit switches
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GEEKA. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
62890 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now