Exam (elaborations)
MA Hoisting 2A study material Questions and Answers fully Solved
- Course
- Institution
MA Hoisting 2A study material
[Show more]
Content preview
MA Hoisting 2A study materialSwing Gear - answer Attaches the main frame to the car body. Allowing the mainframe
to rotate independently of the undercarriage.
Swing Motor - answer Allows mainframe to rotate 360 degrees independent of track
direction or equipment movement
Rotary Manifold - answer Directs hydraulic oil to the track motors to allow the tracks to
function independently while the main frame is in any position
Front Idler - answer Cushion the machine from shock when digging and should be
positioned at the front / at the hole when digging. Maintains tension on the track rails
Track Rails – answer A series of links, pins, and bushings onto which the grouser pads
are bolted
Grouser Pads – answer Devices intended to increase traction. Wider pads decrease
ground pressure. Narrow pads increase traction.
Dig Safe notice - answer72 Hour minimum
30 Days maximum
permit required indefinitely unless a break in work
Minimum distance you must keep from digging from a known utility - answer18 Inches
Dig Safe Regulations - answer220 CMR 99
Red - answerElectric
Yellow - answerGas, Oil, Steam
Orange - answerCommunications
Blue - answerPortable Water
Purple - answerReclaimed Water
Green - answerSewer/ Drainage
Pink - answerSurvey Marks
, White - answerProposed excavation
Centerline Method - answerType of Material
Change in direction
Terminus point
The width (if greater than 2 inches)
Who / What is excluded form digsafe - answerPrivate companies and City / Town lines
are not required to participate in digsafe . Contractor / you are responsible for finding
and marking the private lines in the worksite
Dig Safe Safety Zone - answerWithin 18 width of the line which is color coded. Hand
digging only in safety zones.
Shoring - answerAddition of rigid material to support dirt walls
Trench - answerA hole that is deeper than it is wide, but, no more than 15 feet wide at
the bottom.
Protection is required on trenches greater than ___ feet, maybe less depending on soil
conditons. - answer5
Trench Law aka Jackies law - answer520 CMR 14:00
Permit required on trenches greater than ___ feet - answer3
Never start an engine while __________________________________ -
answerStanding on the ground
When a piece of equipment is no longer in use, - answerLower all moving parts, booms
and implements, to the ground
To prevent an equipment run away accident, always try to ______________________,
___________________________, and ________________________. - answerpark on
level ground, place transmission in neutral, and set parking brake
Proper way to enter / exit a piece of equipment - answerAlways use 3 points of contact
with steps, hand rails, and feet.
When entering / exiting a piece of equipment, never - answerJump on or off the
machine
Use steering wheel or any hand controls as hand rails
Try to enter or exit a moving machine
Is it a requirement to wear a seatbelt - answerYes, if equipped with ROPS
No, if not equipped with ROPS
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 julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81311 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now