Mobile Crane Questions Test #5 with 100% Correct Answers
7 views 0 purchase
Course
Mobile Crane Operator
Institution
Mobile Crane Operator
Mobile Crane Questions Test #5 with 100% Correct AnswersMobile Crane Questions Test #5 with 100% Correct AnswersMobile Crane Questions Test #5 with 100% Correct AnswersMobile Crane Questions Test #5 with 100% Correct Answers
What action does a signal person intend the operator to perform if he ext...
Mobile Crane Questions Test #5
with 100% Correct Answers
What action does a signal person intend the operator to perform if he extends his
arm at shoulder height, makes a fist with his hand, and sticks his thumb up? -
ANSWER - Boom up.
According to ASME B30.5 mobile crane standard, how many randomly distributed
broken wires, maximum, in rotation-resistant rope is cause for replacement of the
rope? - ANSWER - 2 broken wires in 6 rope diameters.
Within what percentage of level does a telescopic boom crane have to be for the
gross ratings in the load chart to remain valid? - ANSWER - 1%.
According to the B30.5 mobile crane standard, it's OK for an operator to leave the
cab of a crane with the engine running so long as: - ANSWER - The operator keeps
the crane in view and restricts access to the area around the crane.
If a bold line is shown on a load chart, the capacities below the line: - ANSWER - Are
based on the stability of the crane.
On duty cycle operations, such as skipping concrete, most manufacturers require a
crane's load chart capacity to be reduced by: - ANSWER - 20%.
A truck crane is set up on outriggers. The part of the load chart governed by
stability is based on what percentage of the crane's capacity? - ANSWER - 85%.
What is the OSHA regulation governing cranes in construction? - ANSWER -
1926.1400.
A crane is set up with 3 of its 4 outriggers fully extended and the fourth retracted.
The capacity of the crane in this configuration will be found in the: - ANSWER - On-
rubber chart or lowest applicable load chart.
, What is the net capacity of a crane on main boom unless the manufacturer states
otherwise? - ANSWER - The capacity listed in the load chart minus the weight of the
rigging and all attachments.
What may happen to a properly rigged load when lifted off the ground unless the
operator takes account of boom deflection? - ANSWER - It could swing out away
from the crane.
When lifting personnel, the total weight of the loaded personnel platform must not
exceed what percentage of the rated capacity of the crane? - ANSWER - 50%.
The tipping axis of a crawler crane: - ANSWER - Depends if the idler or sprocket are
in line or offset from the track rollers.
If a jib's capacity is 5 tons, and the headache ball weighs 900 lbs, the net capacity
load would be: - ANSWER - 9,100 lbs.
What action does a signal person intend the operator to perform if he extends his
arm at shoulder height, makes a fist with his hand, and sticks his/her thumb up? -
ANSWER - Boom up.
When hoisting personnel, within what percentage of level must a telescopic boom
crane be in order for the gross ratings in the load chart to remain valid? - ANSWER -
1%.
The load line of the crane you're operating contacts an energized power line.
There's no sign of any other danger, such as fire. What should you do? - ANSWER -
Stay in the cab until the lines are de-energized.
According to OSHA 1926.1413, how many randomly distributed broken wires in
rotation-resistant rope are cause for replacement of the rope? - ANSWER - 2 broken
wires in 6 rope diameters.
What Standard Method hand signal is being illustrated? (Arm raised horizontal with
hand closed in fist, a finger pointing..). - ANSWER - Swing.
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 NursingTutor1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
