100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
NCCCO tower exam 7.2020 Questions with Actual Answers Graded A+ $10.19   Add to cart

Exam (elaborations)

NCCCO tower exam 7.2020 Questions with Actual Answers Graded A+

 8 views  0 purchase
  • Course
  • NCCCO tower
  • Institution
  • NCCCO Tower

When tower crane is erected/dismantled, written instructions must be - CORRECT ANSWER-On site Tower crane erection/dismantling shall be performed under direct supervision of the - CORRECT ANSWER-Designated person What is the minimum clearance from obstruction when the tower crane freely rotat...

[Show more]

Preview 2 out of 8  pages

  • October 12, 2024
  • 8
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NCCCO tower
  • NCCCO tower
avatar-seller
Vaster
NCCCO tower exam 7.2020 Questions
with Actual Answers Graded A+

When tower crane is erected/dismantled, written instructions must be - CORRECT
ANSWER-On site



Tower crane erection/dismantling shall be performed under direct supervision of the -
CORRECT ANSWER-Designated person



What is the minimum clearance from obstruction when the tower crane freely rotates
360•? - CORRECT ANSWER-6 ft 6 in



What must the crane operator do when a load is suspended - CORRECT ANSWER-
Remain at the controls



How often should the hoist rope be lubricated? - CORRECT ANSWER-Every 200 hours



If block is twisted, it may be necessary to fix the ______________ and make a few
empty runs with the hook and trolley and then reopen - CORRECT ANSWER-Twist
compensator



How many wraps shall be on the drum when the block is at its lowest point - CORRECT
ANSWER-3



The radius on a crane chart refers to - CORRECT ANSWER-Center of rotation to center
of gravity of load or hook



What would cal for a running rope to be taken out of service - CORRECT ANSWER-12
randomly distributed broken wires in one lay or 4 in one strand in one lay



maintainence personnel are only permitted to operate crane when - CORRECT
ANSWER-Only when performing the maintenance duties

, Crane must be a minimum of ____ away from power lines up to 50kV - CORRECT
ANSWER-10ft



How do you determine the size or the mats/blocking needed under tower crane
outriggers? - CORRECT ANSWER-Ground bearing capacity of The supporting surface



A crane should always be barricaded within - CORRECT ANSWER-The outermost
swing radius of the rear of the superstructure ( counterweight)



The crane must have a _________ inspection performed both monthly and yearly. This
information must be documented by the employer that conducts the inspection. -
CORRECT ANSWER-Periodic



What is the weight of steel per cubic foot ? - CORRECT ANSWER-490 lbs



If radius is in between On load chart, you should use - CORRECT ANSWER-Next
longer radius



If the boom angle is in between On The load chart , you should - CORRECT ANSWER-
Use next lower boom angle



Wind blowing on the job site can cause: - CORRECT ANSWER-Increase radius and
lower tower crane capacity



In most cases tower crane operations should be shut down with winds in excess of -
CORRECT ANSWER-45 mph



What is the weight of steel ? - CORRECT ANSWER-490 pounds per cubic foot



On a self - erecting tower crane , which of the following is included in the set up ? -
CORRECT ANSWER-Preparing foundation or ground compaction

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 Vaster. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $10.19. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

77254 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$10.19
  • (0)
  Add to cart